On Tue, May 19, 2020 at 8:30 AM Saravana Kannan saravanak@google.com wrote:

When SYNC_STATE_ONLY support was added in commit 05ef983e0d65 ("driver core: Add device link support for SYNC_STATE_ONLY flag"), device_link_add() incorrectly skipped adding the new SYNC_STATE_ONLY device link to the supplier's and consumer's "device link" list.

This causes multiple issues:

• The device link is lost forever from driver core if the caller didn't keep track of it (caller typically isn't expected to). This is a memory leak.
• The device link is also never visible to any other code path after device_link_add() returns.

If we fix the "device link" list handling, that exposes a bunch of issues.

1. The device link "status" state management code rightfully doesn't

handle the case where a DL_FLAG_MANAGED device link exists between a supplier and consumer, but the consumer manages to probe successfully before the supplier. The addition of DL_FLAG_SYNC_STATE_ONLY links break this assumption. This causes device_links_driver_bound() to throw a warning when this happens.

Since DL_FLAG_SYNC_STATE_ONLY device links are mainly used for creating proxy device links for child device dependencies and aren't useful once the consumer device probes successfully, this patch just deletes DL_FLAG_SYNC_STATE_ONLY device links once its consumer device probes. This way, we avoid the warning, free up some memory and avoid complicating the device links "status" state management code.

2. Creating a DL_FLAG_STATELESS device link between two devices that

already have a DL_FLAG_SYNC_STATE_ONLY device link will result in the DL_FLAG_STATELESS flag not getting set correctly. This patch also fixes this.

Lastly, this patch also fixes minor whitespace issues.

Cc: stable@vger.kernel.org Fixes: 05ef983e0d65 ("driver core: Add device link support for SYNC_STATE_ONLY flag") Signed-off-by: Saravana Kannan saravanak@google.com

No issues found, so

Reviewed-by: Rafael J. Wysocki rafael.j.wysocki@intel.com

---

v3:

• Added this changelog text

v2:

• Delete DL_FLAG_SYNC_STATE_ONLY device links on consumer probe
• Set DL_FLAG_STATELESS correct when added to an existing DL_FLAG_SYNC_STATE_ONLY device link.

v1:

• Add device link to list
• Minor whitespace fixes

drivers/base/core.c | 61 +++++++++++++++++++++++++++++---------------- 1 file changed, 39 insertions(+), 22 deletions(-)

diff --git a/drivers/base/core.c b/drivers/base/core.c index 84c569726d75..f804e561e0a2 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -363,13 +363,12 @@ struct device_link *device_link_add(struct device *consumer,

            if (flags & DL_FLAG_STATELESS) {
                    kref_get(&link->kref);

•                   link->flags |= DL_FLAG_STATELESS;
                    if (link->flags & DL_FLAG_SYNC_STATE_ONLY &&
  

•                       !(link->flags & DL_FLAG_STATELESS)) {
  

•                           link->flags |= DL_FLAG_STATELESS;
  

•                       !(link->flags & DL_FLAG_STATELESS))
                            goto reorder;
  

•                   } else {
  

•                   else
                            goto out;
  

•                   }
            }
  
            /*
  

@@ -436,12 +435,16 @@ struct device_link *device_link_add(struct device *consumer, flags & DL_FLAG_PM_RUNTIME) pm_runtime_resume(supplier);

•   list_add_tail_rcu(&link->s_node, &supplier->links.consumers);
  

•   list_add_tail_rcu(&link->c_node, &consumer->links.suppliers);
  

•   if (flags & DL_FLAG_SYNC_STATE_ONLY) {
            dev_dbg(consumer,
                    "Linked as a sync state only consumer to %s\n",
                    dev_name(supplier));
            goto out;
    }
  

reorder: /* * Move the consumer and all of the devices depending on it to the end @@ -452,12 +455,9 @@ struct device_link *device_link_add(struct device *consumer, */ device_reorder_to_tail(consumer, NULL);

•   list_add_tail_rcu(&link->s_node, &supplier->links.consumers);
  

•   list_add_tail_rcu(&link->c_node, &consumer->links.suppliers);
  

•   dev_dbg(consumer, "Linked as a consumer to %s\n", dev_name(supplier));
  
  

• out:

+out: device_pm_unlock(); device_links_write_unlock();

@@ -832,6 +832,13 @@ static void __device_links_supplier_defer_sync(struct device *sup) list_add_tail(&sup->links.defer_sync, &deferred_sync); }

+static void device_link_drop_managed(struct device_link *link) +{

•   link->flags &= ~DL_FLAG_MANAGED;
  

•   WRITE_ONCE(link->status, DL_STATE_NONE);
  

•   kref_put(&link->kref, __device_link_del);
  

+}

/**

• device_links_driver_bound - Update device links after probing its driver.
• @dev: Device to update the links for.

@@ -845,7 +852,7 @@ static void __device_links_supplier_defer_sync(struct device *sup) */ void device_links_driver_bound(struct device *dev) {

•   struct device_link *link;
  

•   struct device_link *link, *ln;
    LIST_HEAD(sync_list);
  
    /*
  

@@ -885,18 +892,35 @@ void device_links_driver_bound(struct device *dev) else __device_links_queue_sync_state(dev, &sync_list);

•   list_for_each_entry(link, &dev->links.suppliers, c_node) {
  

•   list_for_each_entry_safe(link, ln, &dev->links.suppliers, c_node) {
  

•           struct device *supplier;
  

•           if (!(link->flags & DL_FLAG_MANAGED))
                    continue;
  
  

•           WARN_ON(link->status != DL_STATE_CONSUMER_PROBE);
  

•           WRITE_ONCE(link->status, DL_STATE_ACTIVE);
  

•           supplier = link->supplier;
  

•           if (link->flags & DL_FLAG_SYNC_STATE_ONLY) {
  

•                   /*
  

•                    * When DL_FLAG_SYNC_STATE_ONLY is set, it means no
  

•                    * other DL_MANAGED_LINK_FLAGS have been set. So, it's
  

•                    * save to drop the managed link completely.
  

•                    */
  

•                   device_link_drop_managed(link);
  

•           } else {
  

•                   WARN_ON(link->status != DL_STATE_CONSUMER_PROBE);
  

•                   WRITE_ONCE(link->status, DL_STATE_ACTIVE);
  

•           }
  
  

•           /*
  

•            * This needs to be done even for the deleted
  

•            * DL_FLAG_SYNC_STATE_ONLY device link in case it was the last
  

•            * device link that was preventing the supplier from getting a
  

•            * sync_state() call.
  

•            */
            if (defer_sync_state_count)
  

•                   __device_links_supplier_defer_sync(link->supplier);
  

•                   __device_links_supplier_defer_sync(supplier);
            else
  

•                   __device_links_queue_sync_state(link->supplier,
  

•                                                   &sync_list);
  

•                   __device_links_queue_sync_state(supplier, &sync_list);
    }
  
    dev->links.status = DL_DEV_DRIVER_BOUND;
  

@@ -906,13 +930,6 @@ void device_links_driver_bound(struct device *dev) device_links_flush_sync_list(&sync_list, dev); }

-static void device_link_drop_managed(struct device_link *link) -{

•   link->flags &= ~DL_FLAG_MANAGED;
  

•   WRITE_ONCE(link->status, DL_STATE_NONE);
  

•   kref_put(&link->kref, __device_link_del);
  

-}

/**

• __device_links_no_driver - Update links of a device without a driver.
• @dev: Device without a drvier.

-- 2.26.2.761.g0e0b3e54be-goog

Am 2020-05-25 20:39, schrieb Saravana Kannan:

On Mon, May 25, 2020 at 4:31 AM Michael Walle michael@walle.cc wrote:

...

Am 2020-05-23 00:47, schrieb Michael Walle:

...

Am 2020-05-23 00:21, schrieb Saravana Kannan:

...

On Fri, May 22, 2020 at 11:41 AM Michael Walle michael@walle.cc wrote:

...

Am Mon, 18 May 2020 23:30:00 -0700 schrieb Saravana Kannan saravanak@google.com:

...

When SYNC_STATE_ONLY support was added in commit 05ef983e0d65 ("driver core: Add device link support for SYNC_STATE_ONLY flag"), device_link_add() incorrectly skipped adding the new SYNC_STATE_ONLY device link to the supplier's and consumer's "device link" list.

This causes multiple issues:

• The device link is lost forever from driver core if the caller didn't keep track of it (caller typically isn't expected to). This

is a memory leak.

• The device link is also never visible to any other code path after device_link_add() returns.

If we fix the "device link" list handling, that exposes a bunch of issues.

1. The device link "status" state management code rightfully doesn't

handle the case where a DL_FLAG_MANAGED device link exists between a supplier and consumer, but the consumer manages to probe successfully before the supplier. The addition of DL_FLAG_SYNC_STATE_ONLY links break this assumption. This causes device_links_driver_bound() to throw a warning when this happens.

Since DL_FLAG_SYNC_STATE_ONLY device links are mainly used for creating proxy device links for child device dependencies and aren't useful once the consumer device probes successfully, this patch just deletes DL_FLAG_SYNC_STATE_ONLY device links once its consumer device probes. This way, we avoid the warning, free up some memory and avoid complicating the device links "status" state management code.

2. Creating a DL_FLAG_STATELESS device link between two devices that

already have a DL_FLAG_SYNC_STATE_ONLY device link will result in the DL_FLAG_STATELESS flag not getting set correctly. This patch also fixes this.

Lastly, this patch also fixes minor whitespace issues.

My board triggers the WARN_ON(link->status != DL_STATE_CONSUMER_PROBE);

Full bootlog:

[..]

...

Thanks for the log and report. I haven't spent too much time thinking about this, but can you give this a shot? https://lore.kernel.org/lkml/20200520043626.181820-1-saravanak@google.com/

I've already tried that, as this is already in linux-next. Doesn't fix it, though.

btw. this only happens on linux-next (tested with next-20200522), not on 5.7-rc7 (which has the same two patches of yours)

I wouldn't be surprised if the difference is due to fw_devlink_pause/resume() calls in driver/of/property.c. It chops off ~1s in boot time by changing the order in which device links are created from DT. So, I think it's just masking the issue.

On linux-next where you see the issue, can you get the logs with this change: +++ b/drivers/base/core.c @@ -907,7 +907,10 @@ void device_links_driver_bound(struct device *dev) */ device_link_drop_managed(link); } else {

•                   WARN_ON(link->status != 
  

DL_STATE_CONSUMER_PROBE);

•                   WARN(link->status != DL_STATE_CONSUMER_PROBE,
  

•                           "sup:%s - con:%s f:%d s:%d\n",
  

•                           dev_name(supplier), 
  

dev_name(link->consumer),

•                           link->flags, link->status);
                    WRITE_ONCE(link->status, DL_STATE_ACTIVE);
            }
  
  

My goal is to figure out the order in which the device links between the supplier and consumers devices are created and how that's changing the flag and status. Then I can come up with a fix.

Here we go (hopefully, my mail client won't screw up the line wrapping):

[ 0.000000] Booting Linux on physical CPU 0x0000000000 [0x410fd083] [ 0.000000] Linux version 5.7.0-rc7-next-20200525-00039-gfb6df8136807-dirty (mw@apollo) (aarch64-linux-gnu-gcc (Debian 8.3.0-2) 8.3.0, GNU ld (GNU Binutils for Debian) 2.31.1) #815 SMP PREEMPT Mon May 25 20:58:11 CEST 2020 [ 0.000000] Machine model: Kontron SMARC-sAL28 (Single PHY) on SMARC Eval 2.0 carrier [ 0.000000] efi: UEFI not found. [ 0.000000] cma: Reserved 32 MiB at 0x00000000f9c00000 [ 0.000000] NUMA: No NUMA configuration found [ 0.000000] NUMA: Faking a node at [mem 0x0000000080000000-0x00000020ffffffff] [ 0.000000] NUMA: NODE_DATA [mem 0x20ff7ff100-0x20ff800fff] [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000080000000-0x00000000bfffffff] [ 0.000000] DMA32 [mem 0x00000000c0000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x00000020ffffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000080000000-0x00000000fbdfffff] [ 0.000000] node 0: [mem 0x0000002080000000-0x00000020ffffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000080000000-0x00000020ffffffff] [ 0.000000] On node 0 totalpages: 1031680 [ 0.000000] DMA zone: 4096 pages used for memmap [ 0.000000] DMA zone: 0 pages reserved [ 0.000000] DMA zone: 262144 pages, LIFO batch:63 [ 0.000000] DMA32 zone: 3832 pages used for memmap [ 0.000000] DMA32 zone: 245248 pages, LIFO batch:63 [ 0.000000] Normal zone: 8192 pages used for memmap [ 0.000000] Normal zone: 524288 pages, LIFO batch:63 [ 0.000000] percpu: Embedded 30 pages/cpu s82904 r8192 d31784 u122880 [ 0.000000] pcpu-alloc: s82904 r8192 d31784 u122880 alloc=30*4096 [ 0.000000] pcpu-alloc: [0] 0 [0] 1 [ 0.000000] Detected PIPT I-cache on CPU0 [ 0.000000] CPU features: detected: GIC system register CPU interface [ 0.000000] CPU features: detected: EL2 vector hardening [ 0.000000] ARM_SMCCC_ARCH_WORKAROUND_1 missing from firmware [ 0.000000] CPU features: detected: ARM errata 1165522, 1319367, or 1530923 [ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 1015560 [ 0.000000] Policy zone: Normal [ 0.000000] Kernel command line: debug root=/dev/mmcblk1p2 rootwait [ 0.000000] Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes, linear) [ 0.000000] Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes, linear) [ 0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off [ 0.000000] software IO TLB: mapped [mem 0xbbfff000-0xbffff000] (64MB) [ 0.000000] Memory: 3929700K/4126720K available (9596K kernel code, 1116K rwdata, 3576K rodata, 3328K init, 400K bss, 164252K reserved, 32768K cma-reserved) [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1 [ 0.000000] ftrace: allocating 32709 entries in 128 pages [ 0.000000] ftrace: allocated 128 pages with 1 groups [ 0.000000] rcu: Preemptible hierarchical RCU implementation. [ 0.000000] rcu: RCU restricting CPUs from NR_CPUS=256 to nr_cpu_ids=2. [ 0.000000] Trampoline variant of Tasks RCU enabled. [ 0.000000] Rude variant of Tasks RCU enabled. [ 0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 25 jiffies. [ 0.000000] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2 [ 0.000000] NR_IRQS: 64, nr_irqs: 64, preallocated irqs: 0 [ 0.000000] GICv3: GIC: Using split EOI/Deactivate mode [ 0.000000] GICv3: 256 SPIs implemented [ 0.000000] GICv3: 0 Extended SPIs implemented [ 0.000000] GICv3: Distributor has no Range Selector support [ 0.000000] GICv3: 16 PPIs implemented [ 0.000000] GICv3: CPU0: found redistributor 0 region 0:0x0000000006040000 [ 0.000000] ITS [mem 0x06020000-0x0603ffff] [ 0.000000] ITS@0x0000000006020000: allocated 65536 Devices @20fad80000 (flat, esz 8, psz 64K, shr 0) [ 0.000000] ITS: using cache flushing for cmd queue [ 0.000000] GICv3: using LPI property table @0x00000020fad30000 [ 0.000000] GIC: using cache flushing for LPI property table [ 0.000000] GICv3: CPU0: using allocated LPI pending table @0x00000020fad40000 [ 0.000000] random: get_random_bytes called from start_kernel+0x604/0x7cc with crng_init=0 [ 0.000000] arch_timer: cp15 timer(s) running at 25.00MHz (phys). [ 0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x5c40939b5, max_idle_ns: 440795202646 ns [ 0.000002] sched_clock: 56 bits at 25MHz, resolution 40ns, wraps every 4398046511100ns [ 0.000109] Console: colour dummy device 80x25 [ 0.000394] printk: console [tty0] enabled [ 0.000442] Calibrating delay loop (skipped), value calculated using timer frequency.. 50.00 BogoMIPS (lpj=100000) [ 0.000455] pid_max: default: 32768 minimum: 301 [ 0.000503] LSM: Security Framework initializing [ 0.000556] Mount-cache hash table entries: 8192 (order: 4, 65536 bytes, linear) [ 0.000587] Mountpoint-cache hash table entries: 8192 (order: 4, 65536 bytes, linear) [ 0.001429] rcu: Hierarchical SRCU implementation. [ 0.001576] Platform MSI: gic-its@6020000 domain created [ 0.001649] PCI/MSI: /interrupt-controller@6000000/gic-its@6020000 domain created [ 0.001853] EFI services will not be available. [ 0.001951] smp: Bringing up secondary CPUs ... [ 0.002233] Detected PIPT I-cache on CPU1 [ 0.002254] GICv3: CPU1: found redistributor 1 region 0:0x0000000006060000 [ 0.002261] GICv3: CPU1: using allocated LPI pending table @0x00000020fad50000 [ 0.002282] CPU1: Booted secondary processor 0x0000000001 [0x410fd083] [ 0.002333] smp: Brought up 1 node, 2 CPUs [ 0.002360] SMP: Total of 2 processors activated. [ 0.002367] CPU features: detected: 32-bit EL0 Support [ 0.002374] CPU features: detected: CRC32 instructions [ 0.010409] CPU: All CPU(s) started at EL2 [ 0.010429] alternatives: patching kernel code [ 0.011032] devtmpfs: initialized [ 0.012924] KASLR disabled due to lack of seed [ 0.013080] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns [ 0.013097] futex hash table entries: 512 (order: 3, 32768 bytes, linear) [ 0.013866] thermal_sys: Registered thermal governor 'step_wise' [ 0.013992] DMI not present or invalid. [ 0.014177] NET: Registered protocol family 16 [ 0.015070] DMA: preallocated 4096 KiB GFP_KERNEL pool for atomic allocations [ 0.015781] DMA: preallocated 4096 KiB GFP_KERNEL|GFP_DMA pool for atomic allocations [ 0.016510] DMA: preallocated 4096 KiB GFP_KERNEL|GFP_DMA32 pool for atomic allocations [ 0.016545] audit: initializing netlink subsys (disabled) [ 0.016668] audit: type=2000 audit(0.016:1): state=initialized audit_enabled=0 res=1 [ 0.016968] cpuidle: using governor menu [ 0.017039] hw-breakpoint: found 6 breakpoint and 4 watchpoint registers. [ 0.017069] ASID allocator initialised with 65536 entries [ 0.017337] Serial: AMBA PL011 UART driver [ 0.023506] Machine: Kontron SMARC-sAL28 (Single PHY) on SMARC Eval 2.0 carrier [ 0.023520] SoC family: QorIQ LS1028A [ 0.023526] SoC ID: svr:0x870b0110, Revision: 1.0 [ 0.026552] HugeTLB registered 1.00 GiB page size, pre-allocated 0 pages [ 0.026567] HugeTLB registered 32.0 MiB page size, pre-allocated 0 pages [ 0.026576] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages [ 0.026583] HugeTLB registered 64.0 KiB page size, pre-allocated 0 pages [ 0.027645] cryptd: max_cpu_qlen set to 1000 [ 0.029118] iommu: Default domain type: Translated [ 0.029186] vgaarb: loaded [ 0.029328] SCSI subsystem initialized [ 0.029417] usbcore: registered new interface driver usbfs [ 0.029442] usbcore: registered new interface driver hub [ 0.029474] usbcore: registered new device driver usb [ 0.029610] imx-i2c 2000000.i2c: can't get pinctrl, bus recovery not supported [ 0.029788] i2c i2c-0: IMX I2C adapter registered [ 0.029861] imx-i2c 2030000.i2c: can't get pinctrl, bus recovery not supported [ 0.029932] i2c i2c-1: IMX I2C adapter registered [ 0.030004] imx-i2c 2040000.i2c: can't get pinctrl, bus recovery not supported [ 0.030101] i2c i2c-2: IMX I2C adapter registered [ 0.030179] pps_core: LinuxPPS API ver. 1 registered [ 0.030186] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti giometti@linux.it [ 0.030199] PTP clock support registered [ 0.030427] Advanced Linux Sound Architecture Driver Initialized. [ 0.030779] clocksource: Switched to clocksource arch_sys_counter [ 0.067056] VFS: Disk quotas dquot_6.6.0 [ 0.067099] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 0.069799] NET: Registered protocol family 2 [ 0.070030] tcp_listen_portaddr_hash hash table entries: 2048 (order: 3, 32768 bytes, linear) [ 0.070055] TCP established hash table entries: 32768 (order: 6, 262144 bytes, linear) [ 0.070147] TCP bind hash table entries: 32768 (order: 7, 524288 bytes, linear) [ 0.070444] TCP: Hash tables configured (established 32768 bind 32768) [ 0.070542] UDP hash table entries: 2048 (order: 4, 65536 bytes, linear) [ 0.070569] UDP-Lite hash table entries: 2048 (order: 4, 65536 bytes, linear) [ 0.070654] NET: Registered protocol family 1 [ 0.070674] PCI: CLS 0 bytes, default 64 [ 0.071038] hw perfevents: enabled with armv8_cortex_a72 PMU driver, 7 counters available [ 0.071494] Initialise system trusted keyrings [ 0.071617] workingset: timestamp_bits=44 max_order=20 bucket_order=0 [ 0.105039] Key type asymmetric registered [ 0.105053] Asymmetric key parser 'x509' registered [ 0.105080] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 248) [ 0.105090] io scheduler mq-deadline registered [ 0.105097] io scheduler kyber registered [ 0.105625] pci-host-generic 1f0000000.pcie: host bridge /soc/pcie@1f0000000 ranges: [ 0.105654] pci-host-generic 1f0000000.pcie: MEM 0x01f8000000..0x01f815ffff -> 0x0000000000 [ 0.105675] pci-host-generic 1f0000000.pcie: MEM 0x01f8160000..0x01f81cffff -> 0x0000000000 [ 0.105694] pci-host-generic 1f0000000.pcie: MEM 0x01f81d0000..0x01f81effff -> 0x0000000000 [ 0.105713] pci-host-generic 1f0000000.pcie: MEM 0x01f81f0000..0x01f820ffff -> 0x0000000000 [ 0.105731] pci-host-generic 1f0000000.pcie: MEM 0x01f8210000..0x01f822ffff -> 0x0000000000 [ 0.105749] pci-host-generic 1f0000000.pcie: MEM 0x01f8230000..0x01f824ffff -> 0x0000000000 [ 0.105763] pci-host-generic 1f0000000.pcie: MEM 0x01fc000000..0x01fc3fffff -> 0x0000000000 [ 0.105816] pci-host-generic 1f0000000.pcie: ECAM at [mem 0x1f0000000-0x1f00fffff] for [bus 00] [ 0.105871] pci-host-generic 1f0000000.pcie: PCI host bridge to bus 0000:00 [ 0.105880] pci_bus 0000:00: root bus resource [bus 00] [ 0.105889] pci_bus 0000:00: root bus resource [mem 0x1f8000000-0x1f815ffff] (bus address [0x00000000-0x0015ffff]) [ 0.105901] pci_bus 0000:00: root bus resource [mem 0x1f8160000-0x1f81cffff pref] (bus address [0x00000000-0x0006ffff]) [ 0.105912] pci_bus 0000:00: root bus resource [mem 0x1f81d0000-0x1f81effff] (bus address [0x00000000-0x0001ffff]) [ 0.105923] pci_bus 0000:00: root bus resource [mem 0x1f81f0000-0x1f820ffff pref] (bus address [0x00000000-0x0001ffff]) [ 0.105934] pci_bus 0000:00: root bus resource [mem 0x1f8210000-0x1f822ffff] (bus address [0x00000000-0x0001ffff]) [ 0.105944] pci_bus 0000:00: root bus resource [mem 0x1f8230000-0x1f824ffff pref] (bus address [0x00000000-0x0001ffff]) [ 0.105955] pci_bus 0000:00: root bus resource [mem 0x1fc000000-0x1fc3fffff] (bus address [0x00000000-0x003fffff]) [ 0.105977] pci 0000:00:00.0: [1957:e100] type 00 class 0x020001 [ 0.106018] pci 0000:00:00.0: BAR 0: [mem 0x1f8000000-0x1f803ffff 64bit] (from Enhanced Allocation, properties 0x0) [ 0.106031] pci 0000:00:00.0: BAR 2: [mem 0x1f8160000-0x1f816ffff 64bit pref] (from Enhanced Allocation, properties 0x1) [ 0.106044] pci 0000:00:00.0: VF BAR 0: [mem 0x1f81d0000-0x1f81dffff 64bit] (from Enhanced Allocation, properties 0x4) [ 0.106056] pci 0000:00:00.0: VF BAR 2: [mem 0x1f81f0000-0x1f81fffff 64bit pref] (from Enhanced Allocation, properties 0x3) [ 0.106080] pci 0000:00:00.0: PME# supported from D0 D3hot [ 0.106095] pci 0000:00:00.0: VF(n) BAR0 space: [mem 0x1f81d0000-0x1f81effff 64bit] (contains BAR0 for 2 VFs) [ 0.106106] pci 0000:00:00.0: VF(n) BAR2 space: [mem 0x1f81f0000-0x1f820ffff 64bit pref] (contains BAR2 for 2 VFs) [ 0.106220] pci 0000:00:00.1: [1957:e100] type 00 class 0x020001 [ 0.106250] pci 0000:00:00.1: BAR 0: [mem 0x1f8040000-0x1f807ffff 64bit] (from Enhanced Allocation, properties 0x0) [ 0.106263] pci 0000:00:00.1: BAR 2: [mem 0x1f8170000-0x1f817ffff 64bit pref] (from Enhanced Allocation, properties 0x1) [ 0.106275] pci 0000:00:00.1: VF BAR 0: [mem 0x1f8210000-0x1f821ffff 64bit] (from Enhanced Allocation, properties 0x4) [ 0.106287] pci 0000:00:00.1: VF BAR 2: [mem 0x1f8230000-0x1f823ffff 64bit pref] (from Enhanced Allocation, properties 0x3) [ 0.106309] pci 0000:00:00.1: PME# supported from D0 D3hot [ 0.106323] pci 0000:00:00.1: VF(n) BAR0 space: [mem 0x1f8210000-0x1f822ffff 64bit] (contains BAR0 for 2 VFs) [ 0.106334] pci 0000:00:00.1: VF(n) BAR2 space: [mem 0x1f8230000-0x1f824ffff 64bit pref] (contains BAR2 for 2 VFs) [ 0.106428] pci 0000:00:00.2: [1957:e100] type 00 class 0x020001 [ 0.106458] pci 0000:00:00.2: BAR 0: [mem 0x1f8080000-0x1f80bffff 64bit] (from Enhanced Allocation, properties 0x0) [ 0.106470] pci 0000:00:00.2: BAR 2: [mem 0x1f8180000-0x1f818ffff 64bit pref] (from Enhanced Allocation, properties 0x1) [ 0.106491] pci 0000:00:00.2: PME# supported from D0 D3hot [ 0.106576] pci 0000:00:00.3: [1957:ee01] type 00 class 0x088001 [ 0.106609] pci 0000:00:00.3: BAR 0: [mem 0x1f8100000-0x1f811ffff 64bit] (from Enhanced Allocation, properties 0x0) [ 0.106621] pci 0000:00:00.3: BAR 2: [mem 0x1f8190000-0x1f819ffff 64bit pref] (from Enhanced Allocation, properties 0x1) [ 0.106642] pci 0000:00:00.3: PME# supported from D0 D3hot [ 0.106727] pci 0000:00:00.4: [1957:ee02] type 00 class 0x088001 [ 0.106756] pci 0000:00:00.4: BAR 0: [mem 0x1f8120000-0x1f813ffff 64bit] (from Enhanced Allocation, properties 0x0) [ 0.106768] pci 0000:00:00.4: BAR 2: [mem 0x1f81a0000-0x1f81affff 64bit pref] (from Enhanced Allocation, properties 0x1) [ 0.106805] pci 0000:00:00.4: PME# supported from D0 D3hot [ 0.106891] pci 0000:00:00.5: [1957:eef0] type 00 class 0x020801 [ 0.106921] pci 0000:00:00.5: BAR 0: [mem 0x1f8140000-0x1f815ffff 64bit] (from Enhanced Allocation, properties 0x0) [ 0.106933] pci 0000:00:00.5: BAR 2: [mem 0x1f81b0000-0x1f81bffff 64bit pref] (from Enhanced Allocation, properties 0x1) [ 0.106944] pci 0000:00:00.5: BAR 4: [mem 0x1fc000000-0x1fc3fffff 64bit] (from Enhanced Allocation, properties 0x0) [ 0.106965] pci 0000:00:00.5: PME# supported from D0 D3hot [ 0.107054] pci 0000:00:00.6: [1957:e100] type 00 class 0x020001 [ 0.107083] pci 0000:00:00.6: BAR 0: [mem 0x1f80c0000-0x1f80fffff 64bit] (from Enhanced Allocation, properties 0x0) [ 0.107095] pci 0000:00:00.6: BAR 2: [mem 0x1f81c0000-0x1f81cffff 64bit pref] (from Enhanced Allocation, properties 0x1) [ 0.107116] pci 0000:00:00.6: PME# supported from D0 D3hot [ 0.107877] pci 0000:00:1f.0: [1957:e001] type 00 class 0x080700 [ 0.107923] OF: /soc/pcie@1f0000000: no msi-map translation for rid 0xf8 on (null) [ 0.108232] layerscape-pcie 3400000.pcie: host bridge /soc/pcie@3400000 ranges: [ 0.108257] layerscape-pcie 3400000.pcie: IO 0x8000010000..0x800001ffff -> 0x0000000000 [ 0.108274] layerscape-pcie 3400000.pcie: MEM 0x8040000000..0x807fffffff -> 0x0040000000 [ 0.108361] layerscape-pcie 3400000.pcie: PCI host bridge to bus 0001:00 [ 0.108370] pci_bus 0001:00: root bus resource [bus 00-ff] [ 0.108378] pci_bus 0001:00: root bus resource [io 0x0000-0xffff] [ 0.108387] pci_bus 0001:00: root bus resource [mem 0x8040000000-0x807fffffff] (bus address [0x40000000-0x7fffffff]) [ 0.108408] pci 0001:00:00.0: [1957:82c1] type 01 class 0x060400 [ 0.108468] pci 0001:00:00.0: supports D1 D2 [ 0.108475] pci 0001:00:00.0: PME# supported from D0 D1 D2 D3hot [ 0.109903] pci_bus 0001:01: busn_res: [bus 01-ff] end is updated to 01 [ 0.109917] pci 0001:00:00.0: PCI bridge to [bus 01] [ 0.110006] layerscape-pcie 3500000.pcie: host bridge /soc/pcie@3500000 ranges: [ 0.110029] layerscape-pcie 3500000.pcie: IO 0x8800010000..0x880001ffff -> 0x0000000000 [ 0.110045] layerscape-pcie 3500000.pcie: MEM 0x8840000000..0x887fffffff -> 0x0040000000 [ 0.110123] layerscape-pcie 3500000.pcie: PCI host bridge to bus 0002:00 [ 0.110132] pci_bus 0002:00: root bus resource [bus 00-ff] [ 0.110140] pci_bus 0002:00: root bus resource [io 0x10000-0x1ffff] (bus address [0x0000-0xffff]) [ 0.110151] pci_bus 0002:00: root bus resource [mem 0x8840000000-0x887fffffff] (bus address [0x40000000-0x7fffffff]) [ 0.110171] pci 0002:00:00.0: [1957:82c1] type 01 class 0x060400 [ 0.110230] pci 0002:00:00.0: supports D1 D2 [ 0.110237] pci 0002:00:00.0: PME# supported from D0 D1 D2 D3hot [ 0.111677] pci_bus 0002:01: busn_res: [bus 01-ff] end is updated to 01 [ 0.111690] pci 0002:00:00.0: PCI bridge to [bus 01] [ 0.111962] IPMI message handler: version 39.2 [ 0.111989] ipmi device interface [ 0.112014] ipmi_si: IPMI System Interface driver [ 0.112131] ipmi_si: Unable to find any System Interface(s) [ 0.113571] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 0.114271] 21c0500.serial: ttyS0 at MMIO 0x21c0500 (irq = 16, base_baud = 12500000) is a 16550A [ 1.695285] printk: console [ttyS0] enabled [ 1.699735] 21c0600.serial: ttyS1 at MMIO 0x21c0600 (irq = 16, base_baud = 12500000) is a 16550A [ 1.708845] 2270000.serial: ttyLP2 at MMIO 0x2270000 (irq = 17, base_baud = 12500000) is a FSL_LPUART [ 1.718915] arm-smmu 5000000.iommu: probing hardware configuration... [ 1.725399] arm-smmu 5000000.iommu: SMMUv2 with: [ 1.730041] arm-smmu 5000000.iommu: stage 1 translation [ 1.735387] arm-smmu 5000000.iommu: stage 2 translation [ 1.740726] arm-smmu 5000000.iommu: nested translation [ 1.745977] arm-smmu 5000000.iommu: stream matching with 128 register groups [ 1.753146] arm-smmu 5000000.iommu: 64 context banks (0 stage-2 only) [ 1.759709] arm-smmu 5000000.iommu: Supported page sizes: 0x61311000 [ 1.766177] arm-smmu 5000000.iommu: Stage-1: 48-bit VA -> 48-bit IPA [ 1.772644] arm-smmu 5000000.iommu: Stage-2: 48-bit IPA -> 48-bit PA [ 1.779620] at24 0-0050: supply vcc not found, using dummy regulator [ 1.786797] at24 0-0050: 4096 byte 24c32 EEPROM, writable, 32 bytes/write [ 1.793667] at24 1-0057: supply vcc not found, using dummy regulator [ 1.800812] at24 1-0057: 8192 byte 24c64 EEPROM, writable, 32 bytes/write [ 1.807680] at24 2-0050: supply vcc not found, using dummy regulator [ 1.814812] at24 2-0050: 4096 byte 24c32 EEPROM, writable, 32 bytes/write [ 1.822379] sl28cpld 0-004a: successfully probed. CPLD version 18 [ 1.829631] gpio_sl28cpld sl28cpld-gpio: registered IRQ 108 [ 1.840850] gpio_sl28cpld sl28cpld-gpio.0: registered IRQ 108 [ 1.852473] irq_sl28cpld sl28cpld-intc: registered IRQ 108 [ 1.858081] mpt3sas version 34.100.00.00 loaded [ 1.863428] header.nph=2 [ 1.865969] sfdp_size=288 [ 1.868743] spi-nor spi1.0: mx25u3235f (4096 Kbytes) [ 1.875737] header.nph=0 [ 1.878280] sfdp_size=192 [ 1.880953] spi-nor spi0.0: w25q32dw (4096 Kbytes) [ 1.887272] 10 fixed-partitions partitions found on MTD device 20c0000.spi [ 1.894187] Creating 10 MTD partitions on "20c0000.spi": [ 1.899536] 0x000000000000-0x000000010000 : "rcw" [ 1.911091] 0x000000010000-0x000000100000 : "failsafe bootloader" [ 1.927079] 0x000000100000-0x000000140000 : "failsafe DP firmware" [ 1.935127] 0x000000140000-0x0000001e0000 : "failsafe trusted firmware" [ 1.943100] 0x0000001e0000-0x000000200000 : "reserved" [ 1.951111] 0x000000200000-0x000000210000 : "configuration store" [ 1.959097] 0x000000210000-0x000000300000 : "bootloader" [ 1.967111] 0x000000300000-0x000000340000 : "DP firmware" [ 1.975107] 0x000000340000-0x0000003e0000 : "trusted firmware" [ 1.983108] 0x0000003e0000-0x000000400000 : "bootloader environment" [ 1.991731] libphy: Fixed MDIO Bus: probed [ 1.996040] mscc_felix 0000:00:00.5: Adding to iommu group 0 [ 2.001862] mscc_felix 0000:00:00.5: device is disabled, skipping [ 2.008040] fsl_enetc 0000:00:00.0: Adding to iommu group 1 [ 2.118796] fsl_enetc 0000:00:00.0: enabling device (0400 -> 0402) [ 2.125042] fsl_enetc 0000:00:00.0: no MAC address specified for SI1, using ae:56:33:78:dd:46 [ 2.133609] fsl_enetc 0000:00:00.0: no MAC address specified for SI2, using 56:54:55:fc:0f:b6 [ 2.142520] libphy: Freescale ENETC MDIO Bus: probed [ 2.149117] fsl_enetc 0000:00:00.1: Adding to iommu group 2 [ 2.154838] fsl_enetc 0000:00:00.1: device is disabled, skipping [ 2.160912] fsl_enetc 0000:00:00.2: Adding to iommu group 3 [ 2.166586] fsl_enetc 0000:00:00.2: device is disabled, skipping [ 2.172656] fsl_enetc 0000:00:00.6: Adding to iommu group 4 [ 2.178326] fsl_enetc 0000:00:00.6: device is disabled, skipping [ 2.184426] fsl_enetc_mdio 0000:00:00.3: Adding to iommu group 5 [ 2.294790] fsl_enetc_mdio 0000:00:00.3: enabling device (0400 -> 0402) [ 2.301615] libphy: FSL PCIe IE Central MDIO Bus: probed [ 2.306989] igb: Intel(R) Gigabit Ethernet Network Driver - version 5.6.0-k [ 2.313983] igb: Copyright (c) 2007-2014 Intel Corporation. [ 2.319682] dwc3 3100000.usb: Adding to iommu group 6 [ 2.325036] ------------[ cut here ]------------ [ 2.329678] sup:5000000.iommu - con:3100000.usb f:68 s:1 [ 2.335039] WARNING: CPU: 0 PID: 1 at drivers/base/core.c:915 device_links_driver_bound+0x1ec/0x230 [ 2.344119] Modules linked in: [ 2.347182] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.7.0-rc7-next-20200525-00039-gfb6df8136807-dirty #815 [ 2.357048] Hardware name: Kontron SMARC-sAL28 (Single PHY) on SMARC Eval 2.0 carrier (DT) [ 2.365345] pstate: 60000005 (nZCv daif -PAN -UAO BTYPE=--) [ 2.370935] pc : device_links_driver_bound+0x1ec/0x230 [ 2.376090] lr : device_links_driver_bound+0x1ec/0x230 [ 2.381242] sp : ffff8000111dbb70 [ 2.384564] x29: ffff8000111dbb70 x28: ffff00207a421c10 [ 2.389893] x27: ffff00207a420c90 x26: ffff800010be8130 [ 2.395223] x25: 0000000000000003 x24: ffff00207a420cb0 [ 2.400552] x23: ffff800011039948 x22: ffff8000111dbbd8 [ 2.405880] x21: ffff00207a420c10 x20: ffff8000110d2d80 [ 2.411208] x19: ffff00207a401100 x18: 0000000000000010 [ 2.416536] x17: ffffffffffff3f00 x16: 0000000000007fff [ 2.421864] x15: ffffffffffffffff x14: 0720072007200720 [ 2.427192] x13: 0720072007200720 x12: 0720072007200720 [ 2.432521] x11: 0720072007200720 x10: 0720072007200720 [ 2.437849] x9 : ffff800010091f64 x8 : 072007380736073a [ 2.443177] x7 : 000000000000012c x6 : ffff00207ac21f00 [ 2.448505] x5 : 0000000000000000 x4 : 0000000000000000 [ 2.453833] x3 : 00000000ffffffff x2 : ffff80001105b6c8 [ 2.459161] x1 : c4bf1185730d5000 x0 : 0000000000000000 [ 2.464490] Call trace: [ 2.466941] device_links_driver_bound+0x1ec/0x230 [ 2.471748] driver_bound+0x70/0xc0 [ 2.475246] really_probe+0x110/0x318 [ 2.478917] driver_probe_device+0x40/0x90 [ 2.483025] device_driver_attach+0x7c/0x88 [ 2.487220] __driver_attach+0x60/0xe8 [ 2.490978] bus_for_each_dev+0x7c/0xd0 [ 2.494824] driver_attach+0x2c/0x38 [ 2.498408] bus_add_driver+0x194/0x1f8 [ 2.502254] driver_register+0x6c/0x128 [ 2.506100] __platform_driver_register+0x50/0x60 [ 2.510820] dwc3_driver_init+0x24/0x30 [ 2.514668] do_one_initcall+0x54/0x298 [ 2.518515] kernel_init_freeable+0x1ec/0x268 [ 2.522885] kernel_init+0x1c/0x118 [ 2.526382] ret_from_fork+0x10/0x1c [ 2.529967] ---[ end trace 1dedfde488772a9f ]--- [ 2.534662] dwc3 3110000.usb: Adding to iommu group 7 [ 2.539966] ------------[ cut here ]------------ [ 2.544606] sup:5000000.iommu - con:3110000.usb f:68 s:1 [ 2.549954] WARNING: CPU: 0 PID: 1 at drivers/base/core.c:915 device_links_driver_bound+0x1ec/0x230 [ 2.559034] Modules linked in: [ 2.562096] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G W 5.7.0-rc7-next-20200525-00039-gfb6df8136807-dirty #815 [ 2.573356] Hardware name: Kontron SMARC-sAL28 (Single PHY) on SMARC Eval 2.0 carrier (DT) [ 2.581652] pstate: 60000005 (nZCv daif -PAN -UAO BTYPE=--) [ 2.587243] pc : device_links_driver_bound+0x1ec/0x230 [ 2.592397] lr : device_links_driver_bound+0x1ec/0x230 [ 2.597550] sp : ffff8000111dbb70 [ 2.600870] x29: ffff8000111dbb70 x28: ffff00207a421c10 [ 2.606199] x27: ffff00207a421090 x26: ffff800010be8130 [ 2.611528] x25: 0000000000000003 x24: ffff00207a4210b0 [ 2.616856] x23: ffff800011039948 x22: ffff8000111dbbd8 [ 2.622184] x21: ffff00207a421010 x20: ffff8000110d2d80 [ 2.627512] x19: ffff00207a401180 x18: 0000000000000010 [ 2.632840] x17: ffffffffffff3f00 x16: 0000000000007fff [ 2.638168] x15: ffffffffffffffff x14: 0720072007200720 [ 2.643496] x13: 0720072007200720 x12: 0720072007200720 [ 2.648824] x11: 0720072007200720 x10: 0720072007200720 [ 2.654153] x9 : ffff800010091f64 x8 : 072007380736073a [ 2.659481] x7 : 0000000000000158 x6 : ffff00207ac21f00 [ 2.664809] x5 : 0000000000000000 x4 : 0000000000000000 [ 2.670137] x3 : 00000000ffffffff x2 : ffff80001105b6c8 [ 2.675466] x1 : c4bf1185730d5000 x0 : 0000000000000000 [ 2.680794] Call trace: [ 2.683244] device_links_driver_bound+0x1ec/0x230 [ 2.688049] driver_bound+0x70/0xc0 [ 2.691545] really_probe+0x110/0x318 [ 2.695217] driver_probe_device+0x40/0x90 [ 2.699324] device_driver_attach+0x7c/0x88 [ 2.703519] __driver_attach+0x60/0xe8 [ 2.707277] bus_for_each_dev+0x7c/0xd0 [ 2.711123] driver_attach+0x2c/0x38 [ 2.714707] bus_add_driver+0x194/0x1f8 [ 2.718553] driver_register+0x6c/0x128 [ 2.722399] __platform_driver_register+0x50/0x60 [ 2.727117] dwc3_driver_init+0x24/0x30 [ 2.730963] do_one_initcall+0x54/0x298 [ 2.734810] kernel_init_freeable+0x1ec/0x268 [ 2.739179] kernel_init+0x1c/0x118 [ 2.742676] ret_from_fork+0x10/0x1c [ 2.746259] ---[ end trace 1dedfde488772aa0 ]--- [ 2.751063] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver [ 2.757621] ehci-pci: EHCI PCI platform driver [ 2.762269] xhci-hcd xhci-hcd.0.auto: xHCI Host Controller [ 2.767791] xhci-hcd xhci-hcd.0.auto: new USB bus registered, assigned bus number 1 [ 2.775619] xhci-hcd xhci-hcd.0.auto: hcc params 0x0220f66d hci version 0x100 quirks 0x0000000002010010 [ 2.785077] xhci-hcd xhci-hcd.0.auto: irq 21, io mem 0x03100000 [ 2.791398] hub 1-0:1.0: USB hub found [ 2.795180] hub 1-0:1.0: 1 port detected [ 2.799226] xhci-hcd xhci-hcd.0.auto: xHCI Host Controller [ 2.804742] xhci-hcd xhci-hcd.0.auto: new USB bus registered, assigned bus number 2 [ 2.812437] xhci-hcd xhci-hcd.0.auto: Host supports USB 3.0 SuperSpeed [ 2.819034] usb usb2: We don't know the algorithms for LPM for this host, disabling LPM. [ 2.827373] hub 2-0:1.0: USB hub found [ 2.831156] hub 2-0:1.0: 1 port detected [ 2.835232] xhci-hcd xhci-hcd.1.auto: xHCI Host Controller [ 2.840754] xhci-hcd xhci-hcd.1.auto: new USB bus registered, assigned bus number 3 [ 2.848592] xhci-hcd xhci-hcd.1.auto: hcc params 0x0220f66d hci version 0x100 quirks 0x0000000002010010 [ 2.858072] xhci-hcd xhci-hcd.1.auto: irq 22, io mem 0x03110000 [ 2.864341] hub 3-0:1.0: USB hub found [ 2.868123] hub 3-0:1.0: 1 port detected [ 2.872161] xhci-hcd xhci-hcd.1.auto: xHCI Host Controller [ 2.877676] xhci-hcd xhci-hcd.1.auto: new USB bus registered, assigned bus number 4 [ 2.885372] xhci-hcd xhci-hcd.1.auto: Host supports USB 3.0 SuperSpeed [ 2.891965] usb usb4: We don't know the algorithms for LPM for this host, disabling LPM. [ 2.900305] hub 4-0:1.0: USB hub found [ 2.904166] hub 4-0:1.0: 1 port detected [ 2.908296] usbcore: registered new interface driver usb-storage [ 2.914499] input: buttons1 as /devices/platform/buttons1/input/input0 [ 2.922390] rtc-rv8803 0-0032: Voltage low, temperature compensation stopped. [ 2.929561] rtc-rv8803 0-0032: Voltage low, data loss detected. [ 2.936566] rtc-rv8803 0-0032: Voltage low, data is invalid. [ 2.942408] rtc-rv8803 0-0032: registered as rtc0 [ 2.947738] rtc-rv8803 0-0032: Voltage low, data is invalid. [ 2.953426] rtc-rv8803 0-0032: hctosys: unable to read the hardware clock [ 2.960324] i2c /dev entries driver [ 2.969874] sp805-wdt c000000.watchdog: registration successful [ 2.975903] sp805-wdt c010000.watchdog: registration successful [ 2.983636] sl28cpld_wdt sl28cpld-wdt: initial timeout 6 sec [ 2.989890] qoriq-cpufreq qoriq-cpufreq: Freescale QorIQ CPU frequency scaling driver [ 2.998408] sdhci: Secure Digital Host Controller Interface driver [ 3.004669] sdhci: Copyright(c) Pierre Ossman [ 3.009082] sdhci-pltfm: SDHCI platform and OF driver helper [ 3.015604] sdhci-esdhc 2140000.mmc: Adding to iommu group 8 [ 3.048548] mmc0: SDHCI controller on 2140000.mmc [2140000.mmc] using ADMA [ 3.055568] ------------[ cut here ]------------ [ 3.060295] sup:5000000.iommu - con:2140000.mmc f:68 s:1 [ 3.065824] WARNING: CPU: 0 PID: 1 at drivers/base/core.c:915 device_links_driver_bound+0x1ec/0x230 [ 3.074940] Modules linked in: [ 3.078032] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G W 5.7.0-rc7-next-20200525-00039-gfb6df8136807-dirty #815 [ 3.089325] Hardware name: Kontron SMARC-sAL28 (Single PHY) on SMARC Eval 2.0 carrier (DT) [ 3.097654] pstate: 60000005 (nZCv daif -PAN -UAO BTYPE=--) [ 3.103272] pc : device_links_driver_bound+0x1ec/0x230 [ 3.108451] lr : device_links_driver_bound+0x1ec/0x230 [ 3.113624] sp : ffff8000111dbb70 [ 3.116964] x29: ffff8000111dbb70 x28: ffff00207a421c10 [ 3.122320] x27: ffff00207a41a490 x26: ffff800010be8130 [ 3.127676] x25: 0000000000000003 x24: ffff00207a41a4b0 [ 3.133030] x23: ffff800011039948 x22: ffff8000111dbbd8 [ 3.138384] x21: ffff00207a41a410 x20: ffff8000110d2d80 [ 3.143737] x19: ffff00207affdf00 x18: 0000000000000000 [ 3.149090] x17: 0000000000000002 x16: 0000000000000001 [ 3.154443] x15: 0000000000000000 x14: 00000000000004c4 [ 3.159797] x13: 0000000000000003 x12: 0000000000000000 [ 3.165150] x11: 00000000000003fe x10: 00000000000009f0 [ 3.170503] x9 : ffff800010091f64 x8 : ffff00207ae50a50 [ 3.175857] x7 : ffff80206e9df000 x6 : 0000000000000001 [ 3.181209] x5 : 0000000000000000 x4 : 0000000000000000 [ 3.186562] x3 : ffff80206e9df000 x2 : ffff80001105b6c8 [ 3.191915] x1 : c4bf1185730d5000 x0 : 0000000000000000 [ 3.197268] Call trace: [ 3.199742] device_links_driver_bound+0x1ec/0x230 [ 3.204574] driver_bound+0x70/0xc0 [ 3.208095] really_probe+0x110/0x318 [ 3.211791] driver_probe_device+0x40/0x90 [ 3.215925] device_driver_attach+0x7c/0x88 [ 3.220144] __driver_attach+0x60/0xe8 [ 3.223926] bus_for_each_dev+0x7c/0xd0 [ 3.227794] driver_attach+0x2c/0x38 [ 3.231402] bus_add_driver+0x194/0x1f8 [ 3.235272] driver_register+0x6c/0x128 [ 3.239140] __platform_driver_register+0x50/0x60 [ 3.243883] sdhci_esdhc_driver_init+0x24/0x30 [ 3.248364] do_one_initcall+0x54/0x298 [ 3.252237] kernel_init_freeable+0x1ec/0x268 [ 3.256630] kernel_init+0x1c/0x118 [ 3.260150] ret_from_fork+0x10/0x1c [ 3.263753] ---[ end trace 1dedfde488772aa1 ]--- [ 3.269383] sdhci-esdhc 2150000.mmc: Adding to iommu group 9 [ 3.302631] mmc1: SDHCI controller on 2150000.mmc [2150000.mmc] using ADMA [ 3.309672] ------------[ cut here ]------------ [ 3.314415] sup:5000000.iommu - con:2150000.mmc f:68 s:1 [ 3.319907] WARNING: CPU: 1 PID: 1 at drivers/base/core.c:915 device_links_driver_bound+0x1ec/0x230 [ 3.329018] Modules linked in: [ 3.332109] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.7.0-rc7-next-20200525-00039-gfb6df8136807-dirty #815 [ 3.343403] Hardware name: Kontron SMARC-sAL28 (Single PHY) on SMARC Eval 2.0 carrier (DT) [ 3.351733] pstate: 60000005 (nZCv daif -PAN -UAO BTYPE=--) [ 3.357351] pc : device_links_driver_bound+0x1ec/0x230 [ 3.362530] lr : device_links_driver_bound+0x1ec/0x230 [ 3.367703] sp : ffff8000111dbb70 [ 3.371043] x29: ffff8000111dbb70 x28: ffff00207a421c10 [ 3.376402] x27: ffff00207a41a890 x26: ffff800010be8130 [ 3.381759] x25: 0000000000000003 x24: ffff00207a41a8b0 [ 3.387114] x23: ffff800011039948 x22: ffff8000111dbbd8 [ 3.392468] x21: ffff00207a41a810 x20: ffff8000110d2d80 [ 3.394852] usb 3-1: new high-speed USB device number 2 using xhci-hcd [ 3.397820] x19: ffff00207affdf80 x18: 0000000000000010 [ 3.409742] x17: 0000000000000000 x16: 0000000000000003 [ 3.415096] x15: ffffffffffffffff x14: 0720072007200720 [ 3.420450] x13: 0720072007200720 x12: 0720072007200720 [ 3.425804] x11: 0720072007200720 x10: 00000000000009f0 [ 3.431158] x9 : ffff800010091f64 x8 : ffff00207ae50a50 [ 3.436511] x7 : 00000000ffffffff x6 : 0000000000000001 [ 3.441865] x5 : 0000000000007af8 x4 : 0000000000000000 [ 3.447218] x3 : ffff80206e9fd000 x2 : ffff80001105b6c8 [ 3.452571] x1 : c4bf1185730d5000 x0 : 0000000000000000 [ 3.457925] Call trace: [ 3.460400] device_links_driver_bound+0x1ec/0x230 [ 3.465234] driver_bound+0x70/0xc0 [ 3.468755] really_probe+0x110/0x318 [ 3.472451] driver_probe_device+0x40/0x90 [ 3.476584] device_driver_attach+0x7c/0x88 [ 3.480805] __driver_attach+0x60/0xe8 [ 3.484586] bus_for_each_dev+0x7c/0xd0 [ 3.488455] driver_attach+0x2c/0x38 [ 3.492062] bus_add_driver+0x194/0x1f8 [ 3.495932] driver_register+0x6c/0x128 [ 3.499800] __platform_driver_register+0x50/0x60 [ 3.504543] sdhci_esdhc_driver_init+0x24/0x30 [ 3.509022] do_one_initcall+0x54/0x298 [ 3.512895] kernel_init_freeable+0x1ec/0x268 [ 3.517289] kernel_init+0x1c/0x118 [ 3.520808] ret_from_fork+0x10/0x1c [ 3.524411] ---[ end trace 1dedfde488772aa2 ]--- [ 3.531059] usbcore: registered new interface driver usbhid [ 3.536930] usbhid: USB HID core driver [ 3.542739] wm8904 2-001a: supply DCVDD not found, using dummy regulator [ 3.551906] wm8904 2-001a: supply DBVDD not found, using dummy regulator [ 3.558984] wm8904 2-001a: supply AVDD not found, using dummy regulator [ 3.568758] wm8904 2-001a: supply CPVDD not found, using dummy regulator [ 3.575809] wm8904 2-001a: supply MICVDD not found, using dummy regulator [ 3.585270] wm8904 2-001a: revision A [ 3.592667] random: fast init done [ 3.596550] hub 3-1:1.0: USB hub found [ 3.600618] hub 3-1:1.0: 7 ports detected [ 3.607057] mmc0: new ultra high speed SDR104 SDHC card at address 1234 [ 3.614693] NET: Registered protocol family 10 [ 3.614811] mmcblk0: mmc0:1234 SA16G 14.4 GiB [ 3.620859] Segment Routing with IPv6 [ 3.628371] mmcblk0: p1 [ 3.629054] sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver [ 3.638317] NET: Registered protocol family 17 [ 3.643004] Bridge firewalling registered [ 3.647331] 8021q: 802.1Q VLAN Support v1.8 [ 3.651847] Key type dns_resolver registered [ 3.656831] registered taskstats version 1 [ 3.662880] Loading compiled-in X.509 certificates [ 3.674933] fsl-edma 22c0000.dma-controller: Adding to iommu group 10 [ 3.684717] ------------[ cut here ]------------ [ 3.689545] sup:5000000.iommu - con:22c0000.dma-controller f:68 s:1 [ 3.696078] WARNING: CPU: 0 PID: 82 at drivers/base/core.c:915 device_links_driver_bound+0x1ec/0x230 [ 3.705275] Modules linked in: [ 3.708368] CPU: 0 PID: 82 Comm: kworker/0:3 Tainted: G W 5.7.0-rc7-next-20200525-00039-gfb6df8136807-dirty #815 [ 3.719924] Hardware name: Kontron SMARC-sAL28 (Single PHY) on SMARC Eval 2.0 carrier (DT) [ 3.728262] Workqueue: events deferred_probe_work_func [ 3.733448] pstate: 60000005 (nZCv daif -PAN -UAO BTYPE=--) [ 3.739065] pc : device_links_driver_bound+0x1ec/0x230 [ 3.744244] lr : device_links_driver_bound+0x1ec/0x230 [ 3.749417] sp : ffff8000123d3b70 [ 3.752757] x29: ffff8000123d3b70 x28: ffff00207a421c10 [ 3.758116] x27: ffff00207a41bc90 x26: ffff800010be8130 [ 3.763473] x25: 0000000000000003 x24: ffff00207a41bcb0 [ 3.768827] x23: ffff800011039948 x22: ffff8000123d3bd8 [ 3.774181] x21: ffff00207a41bc10 x20: ffff8000110d2d80 [ 3.779535] x19: ffff00207a401080 x18: 0000000000000010 [ 3.784890] x17: 000000000f459d73 x16: 00000000f67948ef [ 3.790244] x15: ffffffffffffffff x14: 0720072007200720 [ 3.795598] x13: 0720072007200720 x12: 072007200731073a [ 3.800951] x11: 0773072007380736 x10: 073a076607200772 [ 3.806305] x9 : ffff800010091f64 x8 : 07720774076e076f [ 3.811658] x7 : 0000000000000220 x6 : ffff00207ac21f00 [ 3.817012] x5 : 0000000000000000 x4 : 0000000000000000 [ 3.822365] x3 : 00000000ffffffff x2 : ffff80001105b6c8 [ 3.827718] x1 : c4bf1185730d5000 x0 : 0000000000000000 [ 3.833073] Call trace: [ 3.835548] device_links_driver_bound+0x1ec/0x230 [ 3.840381] driver_bound+0x70/0xc0 [ 3.843902] really_probe+0x110/0x318 [ 3.847599] driver_probe_device+0x40/0x90 [ 3.851732] __device_attach_driver+0x8c/0xd0 [ 3.856124] bus_for_each_drv+0x84/0xd8 [ 3.859994] __device_attach+0xd4/0x110 [ 3.863863] device_initial_probe+0x1c/0x28 [ 3.868082] bus_probe_device+0xa4/0xb0 [ 3.871952] deferred_probe_work_func+0x7c/0xb8 [ 3.876525] process_one_work+0x1f4/0x4b8 [ 3.880571] worker_thread+0x218/0x498 [ 3.884355] kthread+0x160/0x168 [ 3.887613] ret_from_fork+0x10/0x1c [ 3.891218] ---[ end trace 1dedfde488772aa4 ]--- [ 3.896564] pcieport 0001:00:00.0: Adding to iommu group 11 [ 3.903497] mmc1: new HS400 MMC card at address 0001 [ 3.908759] pcieport 0001:00:00.0: AER: enabled with IRQ 24 [ 3.909534] mmcblk1: mmc1:0001 S0J58X 29.6 GiB [ 3.914825] pcieport 0002:00:00.0: Adding to iommu group 12 [ 3.919508] mmcblk1boot0: mmc1:0001 S0J58X partition 1 31.5 MiB [ 3.930861] pcieport 0002:00:00.0: AER: enabled with IRQ 26 [ 3.931274] mmcblk1boot1: mmc1:0001 S0J58X partition 2 31.5 MiB [ 3.936999] fsl-qdma 8380000.dma-controller: Adding to iommu group 13 [ 3.942697] mmcblk1rpmb: mmc1:0001 S0J58X partition 3 4.00 MiB, chardev (245:0) [ 3.950312] ------------[ cut here ]------------ [ 3.961397] sup:5000000.iommu - con:8380000.dma-controller f:68 s:1 [ 3.961424] mmcblk1: p1 p2 [ 3.967817] WARNING: CPU: 0 PID: 82 at drivers/base/core.c:915 device_links_driver_bound+0x1ec/0x230 [ 3.979759] Modules linked in: [ 3.982851] CPU: 0 PID: 82 Comm: kworker/0:3 Tainted: G W 5.7.0-rc7-next-20200525-00039-gfb6df8136807-dirty #815 [ 3.994405] Hardware name: Kontron SMARC-sAL28 (Single PHY) on SMARC Eval 2.0 carrier (DT) [ 4.002743] Workqueue: events deferred_probe_work_func [ 4.007928] pstate: 60000005 (nZCv daif -PAN -UAO BTYPE=--) [ 4.013545] pc : device_links_driver_bound+0x1ec/0x230 [ 4.018723] lr : device_links_driver_bound+0x1ec/0x230 [ 4.023897] sp : ffff8000123d3b70 [ 4.027236] x29: ffff8000123d3b70 x28: ffff00207a421c10 [ 4.032592] x27: ffff00207a422090 x26: ffff800010be8130 [ 4.037947] x25: 0000000000000003 x24: ffff00207a4220b0 [ 4.043301] x23: ffff800011039948 x22: ffff8000123d3bd8 [ 4.048655] x21: ffff00207a422010 x20: ffff8000110d2d80 [ 4.054009] x19: ffff00207a401300 x18: 0000000000000010 [ 4.059363] x17: 0000000000000002 x16: 0000000000000003 [ 4.064717] x15: ffffffffffffffff x14: 0720072007200720 [ 4.070070] x13: 0720072007200720 x12: 072007200731073a [ 4.075423] x11: 0773072007380736 x10: 073a076607200772 [ 4.080776] x9 : ffff800010091f64 x8 : 07720774076e076f [ 4.086130] x7 : 0763072d0761076d x6 : ffff00207ac21f00 [ 4.091483] x5 : 0000000000000000 x4 : 0000000000000000 [ 4.096837] x3 : 00000000ffffffff x2 : ffff80001105b6c8 [ 4.102191] x1 : c4bf1185730d5000 x0 : 0000000000000000 [ 4.107545] Call trace: [ 4.110018] device_links_driver_bound+0x1ec/0x230 [ 4.114850] driver_bound+0x70/0xc0 [ 4.118371] really_probe+0x110/0x318 [ 4.122066] driver_probe_device+0x40/0x90 [ 4.126200] __device_attach_driver+0x8c/0xd0 [ 4.130593] bus_for_each_drv+0x84/0xd8 [ 4.134463] __device_attach+0xd4/0x110 [ 4.138333] device_initial_probe+0x1c/0x28 [ 4.142552] bus_probe_device+0xa4/0xb0 [ 4.146422] deferred_probe_work_func+0x7c/0xb8 [ 4.150994] process_one_work+0x1f4/0x4b8 [ 4.155040] worker_thread+0x218/0x498 [ 4.158824] kthread+0x160/0x168 [ 4.162083] ret_from_fork+0x10/0x1c [ 4.165686] ---[ end trace 1dedfde488772aa5 ]--- [ 4.177076] asoc-simple-card sound: wm8904-hifi <-> f150000.audio-controller mapping ok [ 4.187367] asoc-simple-card sound: wm8904-hifi <-> f140000.audio-controller mapping ok [ 4.195570] asoc-simple-card sound: ASoC: no DMI vendor name! [ 4.207494] input: buttons0 as /devices/platform/buttons0/input/input1 [ 4.214771] ALSA device list: [ 4.217820] #0: f150000.audio-controller-wm8904-hifi [ 4.227909] EXT4-fs (mmcblk1p2): INFO: recovery required on readonly filesystem [ 4.235322] EXT4-fs (mmcblk1p2): write access will be enabled during recovery [ 4.274456] EXT4-fs (mmcblk1p2): recovery complete [ 4.281568] EXT4-fs (mmcblk1p2): mounted filesystem with ordered data mode. Opts: (null) [ 4.282852] usb 3-1.6: new full-speed USB device number 3 using xhci-hcd [ 4.289831] VFS: Mounted root (ext4 filesystem) readonly on device 179:34. [ 4.304060] devtmpfs: mounted [ 4.318148] Freeing unused kernel memory: 3328K [ 4.322986] Run /sbin/init as init process [ 4.327143] with arguments: [ 4.330136] /sbin/init [ 4.332884] with environment: [ 4.336071] HOME=/ [ 4.338451] TERM=linux [ 4.390182] EXT4-fs (mmcblk1p2): re-mounted. Opts: (null) [ 4.565675] udevd[130]: starting version 3.2.8 [ 4.572326] random: udevd: uninitialized urandom read (16 bytes read) [ 4.580164] random: udevd: uninitialized urandom read (16 bytes read) [ 4.586913] random: udevd: uninitialized urandom read (16 bytes read) [ 4.598510] udevd[130]: specified group 'kvm' unknown [ 4.626307] udevd[131]: starting eudev-3.2.8 [ 6.878045] fsl_enetc 0000:00:00.0 gbe0: renamed from eth0 [ 9.740520] urandom_read: 3 callbacks suppressed [ 9.740534] random: dd: uninitialized urandom read (512 bytes read) [ 9.903952] Qualcomm Atheros AR8031/AR8033 0000:00:00.0:05: attached PHY driver [Qualcomm Atheros AR8031/AR8033] (mii_bus:phy_addr=0000:00:00.0:05, irq=POLL) [ 9.936327] fsl_enetc 0000:00:00.0 gbe0: Link is Down [ 9.992936] random: dropbear: uninitialized urandom read (32 bytes read) [ 11.971438] fsl_enetc 0000:00:00.0 gbe0: Link is Up - 10Mbps/Full - flow control off [ 11.979324] IPv6: ADDRCONF(NETDEV_CHANGE): gbe0: link becomes ready [ 12.995161] fsl_enetc 0000:00:00.0 gbe0: Link is Down [ 15.043470] fsl_enetc 0000:00:00.0 gbe0: Link is Up - 1Gbps/Full - flow control off

-michael

Am 2020-05-25 23:24, schrieb Saravana Kannan:

On Mon, May 25, 2020 at 12:05 PM Michael Walle michael@walle.cc wrote:

...

Am 2020-05-25 20:39, schrieb Saravana Kannan:

...

On Mon, May 25, 2020 at 4:31 AM Michael Walle michael@walle.cc wrote:

...

Am 2020-05-23 00:47, schrieb Michael Walle:

...

Am 2020-05-23 00:21, schrieb Saravana Kannan:

...

On Fri, May 22, 2020 at 11:41 AM Michael Walle michael@walle.cc wrote: > > Am Mon, 18 May 2020 23:30:00 -0700 > schrieb Saravana Kannan saravanak@google.com: > > > When SYNC_STATE_ONLY support was added in commit 05ef983e0d65 ("driver > > core: Add device link support for SYNC_STATE_ONLY flag"), > > device_link_add() incorrectly skipped adding the new SYNC_STATE_ONLY > > device link to the supplier's and consumer's "device link" list. > > > > This causes multiple issues: > > - The device link is lost forever from driver core if the caller > > didn't keep track of it (caller typically isn't expected to). This > > is a memory leak. > > - The device link is also never visible to any other code path after > > device_link_add() returns. > > > > If we fix the "device link" list handling, that exposes a bunch of > > issues. > > > > 1. The device link "status" state management code rightfully doesn't > > handle the case where a DL_FLAG_MANAGED device link exists between a > > supplier and consumer, but the consumer manages to probe successfully > > before the supplier. The addition of DL_FLAG_SYNC_STATE_ONLY links > > break this assumption. This causes device_links_driver_bound() to > > throw a warning when this happens. > > > > Since DL_FLAG_SYNC_STATE_ONLY device links are mainly used for > > creating proxy device links for child device dependencies and aren't > > useful once the consumer device probes successfully, this patch just > > deletes DL_FLAG_SYNC_STATE_ONLY device links once its consumer device > > probes. This way, we avoid the warning, free up some memory and avoid > > complicating the device links "status" state management code. > > > > 2. Creating a DL_FLAG_STATELESS device link between two devices that > > already have a DL_FLAG_SYNC_STATE_ONLY device link will result in the > > DL_FLAG_STATELESS flag not getting set correctly. This patch also > > fixes this. > > > > Lastly, this patch also fixes minor whitespace issues. > > My board triggers the > WARN_ON(link->status != DL_STATE_CONSUMER_PROBE); > > Full bootlog:

[..]

...

Thanks for the log and report. I haven't spent too much time thinking about this, but can you give this a shot? https://lore.kernel.org/lkml/20200520043626.181820-1-saravanak@google.com/

I've already tried that, as this is already in linux-next. Doesn't fix it, though.

btw. this only happens on linux-next (tested with next-20200522), not on 5.7-rc7 (which has the same two patches of yours)

I wouldn't be surprised if the difference is due to fw_devlink_pause/resume() calls in driver/of/property.c. It chops off ~1s in boot time by changing the order in which device links are created from DT. So, I think it's just masking the issue.

On linux-next where you see the issue, can you get the logs with this change: +++ b/drivers/base/core.c @@ -907,7 +907,10 @@ void device_links_driver_bound(struct device *dev) */ device_link_drop_managed(link); } else {

•                   WARN_ON(link->status !=
  

DL_STATE_CONSUMER_PROBE);

•                   WARN(link->status != DL_STATE_CONSUMER_PROBE,
  

•                           "sup:%s - con:%s f:%d s:%d\n",
  

•                           dev_name(supplier),
  

dev_name(link->consumer),

•                           link->flags, link->status);
                    WRITE_ONCE(link->status, DL_STATE_ACTIVE);
            }
  
  

My goal is to figure out the order in which the device links between the supplier and consumers devices are created and how that's changing the flag and status. Then I can come up with a fix.

Here we go (hopefully, my mail client won't screw up the line wrapping):

Thanks for the logs!

Ok, that definitely gave me some more info.

1. It's happening only for this iommu which in some cases can create

device links before fw_devlink through the use of BUS_NOTIFY_ADD_DEVICE. 2. The issue doesn't seem to be between STATELESS and SYNC_STATE_ONLY flags (because STATELESS flag is not set). 3. There seems to be a MANAGED link created by arm-smmu.c before/after the SYNC_STATE_ONLY link is created.

In which case, the SYNC_STATE_ONLY link is supposed to be a NOP, but that doesn't seem to be the case for some reason.

Can you add these debug messages and give me the logs? Hopefully this'll be my last log request. I tried reproducing this in hardware I have, but I couldn't reproduce it.

sure no problem:

[ 0.000000] Booting Linux on physical CPU 0x0000000000 [0x410fd083] [ 0.000000] Linux version 5.7.0-rc7-next-20200525-00039-gfb6df8136807-dirty (mw@apollo) (aarch64-linux-gnu-gcc (Debian 8.3.0-2) 8.3.0, GNU ld (GNU Binutils for Debian) 2.31.1) #816 SMP PREEMPT Mon May 25 23:34:22 CEST 2020 [ 0.000000] Machine model: Kontron SMARC-sAL28 (Single PHY) on SMARC Eval 2.0 carrier [ 0.000000] efi: UEFI not found. [ 0.000000] cma: Reserved 32 MiB at 0x00000000f9c00000 [ 0.000000] NUMA: No NUMA configuration found [ 0.000000] NUMA: Faking a node at [mem 0x0000000080000000-0x00000020ffffffff] [ 0.000000] NUMA: NODE_DATA [mem 0x20ff7ff100-0x20ff800fff] [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000080000000-0x00000000bfffffff] [ 0.000000] DMA32 [mem 0x00000000c0000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x00000020ffffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000080000000-0x00000000fbdfffff] [ 0.000000] node 0: [mem 0x0000002080000000-0x00000020ffffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000080000000-0x00000020ffffffff] [ 0.000000] On node 0 totalpages: 1031680 [ 0.000000] DMA zone: 4096 pages used for memmap [ 0.000000] DMA zone: 0 pages reserved [ 0.000000] DMA zone: 262144 pages, LIFO batch:63 [ 0.000000] DMA32 zone: 3832 pages used for memmap [ 0.000000] DMA32 zone: 245248 pages, LIFO batch:63 [ 0.000000] Normal zone: 8192 pages used for memmap [ 0.000000] Normal zone: 524288 pages, LIFO batch:63 [ 0.000000] percpu: Embedded 30 pages/cpu s82904 r8192 d31784 u122880 [ 0.000000] pcpu-alloc: s82904 r8192 d31784 u122880 alloc=30*4096 [ 0.000000] pcpu-alloc: [0] 0 [0] 1 [ 0.000000] Detected PIPT I-cache on CPU0 [ 0.000000] CPU features: detected: GIC system register CPU interface [ 0.000000] CPU features: detected: EL2 vector hardening [ 0.000000] ARM_SMCCC_ARCH_WORKAROUND_1 missing from firmware [ 0.000000] CPU features: detected: ARM errata 1165522, 1319367, or 1530923 [ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 1015560 [ 0.000000] Policy zone: Normal [ 0.000000] Kernel command line: debug root=/dev/mmcblk1p2 rootwait [ 0.000000] Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes, linear) [ 0.000000] Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes, linear) [ 0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off [ 0.000000] software IO TLB: mapped [mem 0xbbfff000-0xbffff000] (64MB) [ 0.000000] Memory: 3929700K/4126720K available (9596K kernel code, 1116K rwdata, 3576K rodata, 3328K init, 400K bss, 164252K reserved, 32768K cma-reserved) [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1 [ 0.000000] ftrace: allocating 32709 entries in 128 pages [ 0.000000] ftrace: allocated 128 pages with 1 groups [ 0.000000] rcu: Preemptible hierarchical RCU implementation. [ 0.000000] rcu: RCU restricting CPUs from NR_CPUS=256 to nr_cpu_ids=2. [ 0.000000] Trampoline variant of Tasks RCU enabled. [ 0.000000] Rude variant of Tasks RCU enabled. [ 0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 25 jiffies. [ 0.000000] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2 [ 0.000000] NR_IRQS: 64, nr_irqs: 64, preallocated irqs: 0 [ 0.000000] GICv3: GIC: Using split EOI/Deactivate mode [ 0.000000] GICv3: 256 SPIs implemented [ 0.000000] GICv3: 0 Extended SPIs implemented [ 0.000000] GICv3: Distributor has no Range Selector support [ 0.000000] GICv3: 16 PPIs implemented [ 0.000000] GICv3: CPU0: found redistributor 0 region 0:0x0000000006040000 [ 0.000000] ITS [mem 0x06020000-0x0603ffff] [ 0.000000] ITS@0x0000000006020000: allocated 65536 Devices @20fad80000 (flat, esz 8, psz 64K, shr 0) [ 0.000000] ITS: using cache flushing for cmd queue [ 0.000000] GICv3: using LPI property table @0x00000020fad30000 [ 0.000000] GIC: using cache flushing for LPI property table [ 0.000000] GICv3: CPU0: using allocated LPI pending table @0x00000020fad40000 [ 0.000000] random: get_random_bytes called from start_kernel+0x604/0x7cc with crng_init=0 [ 0.000000] arch_timer: cp15 timer(s) running at 25.00MHz (phys). [ 0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x5c40939b5, max_idle_ns: 440795202646 ns [ 0.000002] sched_clock: 56 bits at 25MHz, resolution 40ns, wraps every 4398046511100ns [ 0.000106] Console: colour dummy device 80x25 [ 0.000393] printk: console [tty0] enabled [ 0.000440] Calibrating delay loop (skipped), value calculated using timer frequency.. 50.00 BogoMIPS (lpj=100000) [ 0.000453] pid_max: default: 32768 minimum: 301 [ 0.000500] LSM: Security Framework initializing [ 0.000554] Mount-cache hash table entries: 8192 (order: 4, 65536 bytes, linear) [ 0.000585] Mountpoint-cache hash table entries: 8192 (order: 4, 65536 bytes, linear) [ 0.001424] rcu: Hierarchical SRCU implementation. [ 0.001573] Platform MSI: gic-its@6020000 domain created [ 0.001642] PCI/MSI: /interrupt-controller@6000000/gic-its@6020000 domain created [ 0.001844] EFI services will not be available. [ 0.001943] smp: Bringing up secondary CPUs ... [ 0.002216] Detected PIPT I-cache on CPU1 [ 0.002236] GICv3: CPU1: found redistributor 1 region 0:0x0000000006060000 [ 0.002243] GICv3: CPU1: using allocated LPI pending table @0x00000020fad50000 [ 0.002265] CPU1: Booted secondary processor 0x0000000001 [0x410fd083] [ 0.002316] smp: Brought up 1 node, 2 CPUs [ 0.002342] SMP: Total of 2 processors activated. [ 0.002350] CPU features: detected: 32-bit EL0 Support [ 0.002356] CPU features: detected: CRC32 instructions [ 0.010374] CPU: All CPU(s) started at EL2 [ 0.010394] alternatives: patching kernel code [ 0.010997] devtmpfs: initialized [ 0.012905] KASLR disabled due to lack of seed [ 0.013057] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns [ 0.013073] futex hash table entries: 512 (order: 3, 32768 bytes, linear) [ 0.013842] thermal_sys: Registered thermal governor 'step_wise' [ 0.013967] DMI not present or invalid. [ 0.014149] NET: Registered protocol family 16 [ 0.015044] DMA: preallocated 4096 KiB GFP_KERNEL pool for atomic allocations [ 0.015756] DMA: preallocated 4096 KiB GFP_KERNEL|GFP_DMA pool for atomic allocations [ 0.016483] DMA: preallocated 4096 KiB GFP_KERNEL|GFP_DMA32 pool for atomic allocations [ 0.016519] audit: initializing netlink subsys (disabled) [ 0.016641] audit: type=2000 audit(0.016:1): state=initialized audit_enabled=0 res=1 [ 0.016942] cpuidle: using governor menu [ 0.017011] hw-breakpoint: found 6 breakpoint and 4 watchpoint registers. [ 0.017040] ASID allocator initialised with 65536 entries [ 0.017304] Serial: AMBA PL011 UART driver [ 0.022963] platform 2140000.mmc: Link attempted to 5000000.iommu 0xc0 [ 0.022977] platform 2140000.mmc: Link done to 5000000.iommu 0xc0 0 [ 0.023000] platform 2150000.mmc: Link attempted to 5000000.iommu 0xc0 [ 0.023009] platform 2150000.mmc: Link done to 5000000.iommu 0xc0 0 [ 0.023072] platform 22c0000.dma-controller: Link attempted to 5000000.iommu 0xc0 [ 0.023082] platform 22c0000.dma-controller: Link done to 5000000.iommu 0xc0 0 [ 0.023123] platform 3100000.usb: Link attempted to 5000000.iommu 0xc0 [ 0.023132] platform 3100000.usb: Link done to 5000000.iommu 0xc0 0 [ 0.023148] platform 3110000.usb: Link attempted to 5000000.iommu 0xc0 [ 0.023156] platform 3110000.usb: Link done to 5000000.iommu 0xc0 0 [ 0.023181] platform 3400000.pcie: Link attempted to 5000000.iommu 0xc0 [ 0.023190] platform 3400000.pcie: Link done to 5000000.iommu 0xc0 0 [ 0.023212] platform 3500000.pcie: Link attempted to 5000000.iommu 0xc0 [ 0.023221] platform 3500000.pcie: Link done to 5000000.iommu 0xc0 0 [ 0.023238] platform 8380000.dma-controller: Link attempted to 5000000.iommu 0xc0 [ 0.023248] platform 8380000.dma-controller: Link done to 5000000.iommu 0xc0 0 [ 0.023347] platform 1f0000000.pcie: Link attempted to 5000000.iommu 0xc0 [ 0.023355] platform 1f0000000.pcie: Link done to 5000000.iommu 0xc0 0 [ 0.023398] platform f080000.display: Link attempted to 5000000.iommu 0xc0 [ 0.023406] platform f080000.display: Link done to 5000000.iommu 0xc0 0 [ 0.023657] Machine: Kontron SMARC-sAL28 (Single PHY) on SMARC Eval 2.0 carrier [ 0.023666] SoC family: QorIQ LS1028A [ 0.023672] SoC ID: svr:0x870b0110, Revision: 1.0 [ 0.026698] HugeTLB registered 1.00 GiB page size, pre-allocated 0 pages [ 0.026713] HugeTLB registered 32.0 MiB page size, pre-allocated 0 pages [ 0.026721] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages [ 0.026729] HugeTLB registered 64.0 KiB page size, pre-allocated 0 pages [ 0.027791] cryptd: max_cpu_qlen set to 1000 [ 0.029257] iommu: Default domain type: Translated [ 0.029325] vgaarb: loaded [ 0.029467] SCSI subsystem initialized [ 0.029554] usbcore: registered new interface driver usbfs [ 0.029580] usbcore: registered new interface driver hub [ 0.029612] usbcore: registered new device driver usb [ 0.029748] imx-i2c 2000000.i2c: can't get pinctrl, bus recovery not supported [ 0.029925] i2c i2c-0: IMX I2C adapter registered [ 0.029998] imx-i2c 2030000.i2c: can't get pinctrl, bus recovery not supported [ 0.030068] i2c i2c-1: IMX I2C adapter registered [ 0.030142] imx-i2c 2040000.i2c: can't get pinctrl, bus recovery not supported [ 0.030240] i2c i2c-2: IMX I2C adapter registered [ 0.030319] pps_core: LinuxPPS API ver. 1 registered [ 0.030327] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti giometti@linux.it [ 0.030341] PTP clock support registered [ 0.030562] Advanced Linux Sound Architecture Driver Initialized. [ 0.030909] clocksource: Switched to clocksource arch_sys_counter [ 0.067146] VFS: Disk quotas dquot_6.6.0 [ 0.067188] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 0.069879] NET: Registered protocol family 2 [ 0.070111] tcp_listen_portaddr_hash hash table entries: 2048 (order: 3, 32768 bytes, linear) [ 0.070136] TCP established hash table entries: 32768 (order: 6, 262144 bytes, linear) [ 0.070229] TCP bind hash table entries: 32768 (order: 7, 524288 bytes, linear) [ 0.070529] TCP: Hash tables configured (established 32768 bind 32768) [ 0.070628] UDP hash table entries: 2048 (order: 4, 65536 bytes, linear) [ 0.070655] UDP-Lite hash table entries: 2048 (order: 4, 65536 bytes, linear) [ 0.070740] NET: Registered protocol family 1 [ 0.070760] PCI: CLS 0 bytes, default 64 [ 0.071123] hw perfevents: enabled with armv8_cortex_a72 PMU driver, 7 counters available [ 0.071580] Initialise system trusted keyrings [ 0.071703] workingset: timestamp_bits=44 max_order=20 bucket_order=0 [ 0.105131] Key type asymmetric registered [ 0.105147] Asymmetric key parser 'x509' registered [ 0.105173] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 248) [ 0.105182] io scheduler mq-deadline registered [ 0.105189] io scheduler kyber registered [ 0.105719] pci-host-generic 1f0000000.pcie: host bridge /soc/pcie@1f0000000 ranges: [ 0.105749] pci-host-generic 1f0000000.pcie: MEM 0x01f8000000..0x01f815ffff -> 0x0000000000 [ 0.105769] pci-host-generic 1f0000000.pcie: MEM 0x01f8160000..0x01f81cffff -> 0x0000000000 [ 0.105789] pci-host-generic 1f0000000.pcie: MEM 0x01f81d0000..0x01f81effff -> 0x0000000000 [ 0.105808] pci-host-generic 1f0000000.pcie: MEM 0x01f81f0000..0x01f820ffff -> 0x0000000000 [ 0.105826] pci-host-generic 1f0000000.pcie: MEM 0x01f8210000..0x01f822ffff -> 0x0000000000 [ 0.105845] pci-host-generic 1f0000000.pcie: MEM 0x01f8230000..0x01f824ffff -> 0x0000000000 [ 0.105859] pci-host-generic 1f0000000.pcie: MEM 0x01fc000000..0x01fc3fffff -> 0x0000000000 [ 0.105910] pci-host-generic 1f0000000.pcie: ECAM at [mem 0x1f0000000-0x1f00fffff] for [bus 00] [ 0.105965] pci-host-generic 1f0000000.pcie: PCI host bridge to bus 0000:00 [ 0.105975] pci_bus 0000:00: root bus resource [bus 00] [ 0.105985] pci_bus 0000:00: root bus resource [mem 0x1f8000000-0x1f815ffff] (bus address [0x00000000-0x0015ffff]) [ 0.105996] pci_bus 0000:00: root bus resource [mem 0x1f8160000-0x1f81cffff pref] (bus address [0x00000000-0x0006ffff]) [ 0.106007] pci_bus 0000:00: root bus resource [mem 0x1f81d0000-0x1f81effff] (bus address [0x00000000-0x0001ffff]) [ 0.106018] pci_bus 0000:00: root bus resource [mem 0x1f81f0000-0x1f820ffff pref] (bus address [0x00000000-0x0001ffff]) [ 0.106028] pci_bus 0000:00: root bus resource [mem 0x1f8210000-0x1f822ffff] (bus address [0x00000000-0x0001ffff]) [ 0.106039] pci_bus 0000:00: root bus resource [mem 0x1f8230000-0x1f824ffff pref] (bus address [0x00000000-0x0001ffff]) [ 0.106050] pci_bus 0000:00: root bus resource [mem 0x1fc000000-0x1fc3fffff] (bus address [0x00000000-0x003fffff]) [ 0.106072] pci 0000:00:00.0: [1957:e100] type 00 class 0x020001 [ 0.106113] pci 0000:00:00.0: BAR 0: [mem 0x1f8000000-0x1f803ffff 64bit] (from Enhanced Allocation, properties 0x0) [ 0.106125] pci 0000:00:00.0: BAR 2: [mem 0x1f8160000-0x1f816ffff 64bit pref] (from Enhanced Allocation, properties 0x1) [ 0.106138] pci 0000:00:00.0: VF BAR 0: [mem 0x1f81d0000-0x1f81dffff 64bit] (from Enhanced Allocation, properties 0x4) [ 0.106150] pci 0000:00:00.0: VF BAR 2: [mem 0x1f81f0000-0x1f81fffff 64bit pref] (from Enhanced Allocation, properties 0x3) [ 0.106174] pci 0000:00:00.0: PME# supported from D0 D3hot [ 0.106189] pci 0000:00:00.0: VF(n) BAR0 space: [mem 0x1f81d0000-0x1f81effff 64bit] (contains BAR0 for 2 VFs) [ 0.106200] pci 0000:00:00.0: VF(n) BAR2 space: [mem 0x1f81f0000-0x1f820ffff 64bit pref] (contains BAR2 for 2 VFs) [ 0.106314] pci 0000:00:00.1: [1957:e100] type 00 class 0x020001 [ 0.106345] pci 0000:00:00.1: BAR 0: [mem 0x1f8040000-0x1f807ffff 64bit] (from Enhanced Allocation, properties 0x0) [ 0.106357] pci 0000:00:00.1: BAR 2: [mem 0x1f8170000-0x1f817ffff 64bit pref] (from Enhanced Allocation, properties 0x1) [ 0.106369] pci 0000:00:00.1: VF BAR 0: [mem 0x1f8210000-0x1f821ffff 64bit] (from Enhanced Allocation, properties 0x4) [ 0.106381] pci 0000:00:00.1: VF BAR 2: [mem 0x1f8230000-0x1f823ffff 64bit pref] (from Enhanced Allocation, properties 0x3) [ 0.106404] pci 0000:00:00.1: PME# supported from D0 D3hot [ 0.106418] pci 0000:00:00.1: VF(n) BAR0 space: [mem 0x1f8210000-0x1f822ffff 64bit] (contains BAR0 for 2 VFs) [ 0.106429] pci 0000:00:00.1: VF(n) BAR2 space: [mem 0x1f8230000-0x1f824ffff 64bit pref] (contains BAR2 for 2 VFs) [ 0.106524] pci 0000:00:00.2: [1957:e100] type 00 class 0x020001 [ 0.106554] pci 0000:00:00.2: BAR 0: [mem 0x1f8080000-0x1f80bffff 64bit] (from Enhanced Allocation, properties 0x0) [ 0.106566] pci 0000:00:00.2: BAR 2: [mem 0x1f8180000-0x1f818ffff 64bit pref] (from Enhanced Allocation, properties 0x1) [ 0.106587] pci 0000:00:00.2: PME# supported from D0 D3hot [ 0.106672] pci 0000:00:00.3: [1957:ee01] type 00 class 0x088001 [ 0.106705] pci 0000:00:00.3: BAR 0: [mem 0x1f8100000-0x1f811ffff 64bit] (from Enhanced Allocation, properties 0x0) [ 0.106717] pci 0000:00:00.3: BAR 2: [mem 0x1f8190000-0x1f819ffff 64bit pref] (from Enhanced Allocation, properties 0x1) [ 0.106741] pci 0000:00:00.3: PME# supported from D0 D3hot [ 0.106826] pci 0000:00:00.4: [1957:ee02] type 00 class 0x088001 [ 0.106856] pci 0000:00:00.4: BAR 0: [mem 0x1f8120000-0x1f813ffff 64bit] (from Enhanced Allocation, properties 0x0) [ 0.106868] pci 0000:00:00.4: BAR 2: [mem 0x1f81a0000-0x1f81affff 64bit pref] (from Enhanced Allocation, properties 0x1) [ 0.106889] pci 0000:00:00.4: PME# supported from D0 D3hot [ 0.107006] pci 0000:00:00.5: [1957:eef0] type 00 class 0x020801 [ 0.107037] pci 0000:00:00.5: BAR 0: [mem 0x1f8140000-0x1f815ffff 64bit] (from Enhanced Allocation, properties 0x0) [ 0.107049] pci 0000:00:00.5: BAR 2: [mem 0x1f81b0000-0x1f81bffff 64bit pref] (from Enhanced Allocation, properties 0x1) [ 0.107061] pci 0000:00:00.5: BAR 4: [mem 0x1fc000000-0x1fc3fffff 64bit] (from Enhanced Allocation, properties 0x0) [ 0.107082] pci 0000:00:00.5: PME# supported from D0 D3hot [ 0.107172] pci 0000:00:00.6: [1957:e100] type 00 class 0x020001 [ 0.107202] pci 0000:00:00.6: BAR 0: [mem 0x1f80c0000-0x1f80fffff 64bit] (from Enhanced Allocation, properties 0x0) [ 0.107214] pci 0000:00:00.6: BAR 2: [mem 0x1f81c0000-0x1f81cffff 64bit pref] (from Enhanced Allocation, properties 0x1) [ 0.107235] pci 0000:00:00.6: PME# supported from D0 D3hot [ 0.107991] pci 0000:00:1f.0: [1957:e001] type 00 class 0x080700 [ 0.108036] OF: /soc/pcie@1f0000000: no msi-map translation for rid 0xf8 on (null) [ 0.108347] layerscape-pcie 3400000.pcie: host bridge /soc/pcie@3400000 ranges: [ 0.108373] layerscape-pcie 3400000.pcie: IO 0x8000010000..0x800001ffff -> 0x0000000000 [ 0.108390] layerscape-pcie 3400000.pcie: MEM 0x8040000000..0x807fffffff -> 0x0040000000 [ 0.108476] layerscape-pcie 3400000.pcie: PCI host bridge to bus 0001:00 [ 0.108485] pci_bus 0001:00: root bus resource [bus 00-ff] [ 0.108493] pci_bus 0001:00: root bus resource [io 0x0000-0xffff] [ 0.108502] pci_bus 0001:00: root bus resource [mem 0x8040000000-0x807fffffff] (bus address [0x40000000-0x7fffffff]) [ 0.108523] pci 0001:00:00.0: [1957:82c1] type 01 class 0x060400 [ 0.108583] pci 0001:00:00.0: supports D1 D2 [ 0.108590] pci 0001:00:00.0: PME# supported from D0 D1 D2 D3hot [ 0.110007] pci_bus 0001:01: busn_res: [bus 01-ff] end is updated to 01 [ 0.110020] pci 0001:00:00.0: PCI bridge to [bus 01] [ 0.110111] layerscape-pcie 3500000.pcie: host bridge /soc/pcie@3500000 ranges: [ 0.110135] layerscape-pcie 3500000.pcie: IO 0x8800010000..0x880001ffff -> 0x0000000000 [ 0.110151] layerscape-pcie 3500000.pcie: MEM 0x8840000000..0x887fffffff -> 0x0040000000 [ 0.110229] layerscape-pcie 3500000.pcie: PCI host bridge to bus 0002:00 [ 0.110239] pci_bus 0002:00: root bus resource [bus 00-ff] [ 0.110248] pci_bus 0002:00: root bus resource [io 0x10000-0x1ffff] (bus address [0x0000-0xffff]) [ 0.110259] pci_bus 0002:00: root bus resource [mem 0x8840000000-0x887fffffff] (bus address [0x40000000-0x7fffffff]) [ 0.110279] pci 0002:00:00.0: [1957:82c1] type 01 class 0x060400 [ 0.110337] pci 0002:00:00.0: supports D1 D2 [ 0.110344] pci 0002:00:00.0: PME# supported from D0 D1 D2 D3hot [ 0.111771] pci_bus 0002:01: busn_res: [bus 01-ff] end is updated to 01 [ 0.111783] pci 0002:00:00.0: PCI bridge to [bus 01] [ 0.112057] IPMI message handler: version 39.2 [ 0.112083] ipmi device interface [ 0.112109] ipmi_si: IPMI System Interface driver [ 0.112228] ipmi_si: Unable to find any System Interface(s) [ 0.113662] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 0.114356] 21c0500.serial: ttyS0 at MMIO 0x21c0500 (irq = 16, base_baud = 12500000) is a 16550A [ 1.829114] printk: console [ttyS0] enabled [ 1.833561] 21c0600.serial: ttyS1 at MMIO 0x21c0600 (irq = 16, base_baud = 12500000) is a 16550A [ 1.842671] 2270000.serial: ttyLP2 at MMIO 0x2270000 (irq = 17, base_baud = 12500000) is a FSL_LPUART [ 1.852732] arm-smmu 5000000.iommu: probing hardware configuration... [ 1.859220] arm-smmu 5000000.iommu: SMMUv2 with: [ 1.863864] arm-smmu 5000000.iommu: stage 1 translation [ 1.869208] arm-smmu 5000000.iommu: stage 2 translation [ 1.874546] arm-smmu 5000000.iommu: nested translation [ 1.879796] arm-smmu 5000000.iommu: stream matching with 128 register groups [ 1.886965] arm-smmu 5000000.iommu: 64 context banks (0 stage-2 only) [ 1.893528] arm-smmu 5000000.iommu: Supported page sizes: 0x61311000 [ 1.899998] arm-smmu 5000000.iommu: Stage-1: 48-bit VA -> 48-bit IPA [ 1.906465] arm-smmu 5000000.iommu: Stage-2: 48-bit IPA -> 48-bit PA [ 1.913437] at24 0-0050: supply vcc not found, using dummy regulator [ 1.920610] at24 0-0050: 4096 byte 24c32 EEPROM, writable, 32 bytes/write [ 1.927482] at24 1-0057: supply vcc not found, using dummy regulator [ 1.934628] at24 1-0057: 8192 byte 24c64 EEPROM, writable, 32 bytes/write [ 1.941497] at24 2-0050: supply vcc not found, using dummy regulator [ 1.948627] at24 2-0050: 4096 byte 24c32 EEPROM, writable, 32 bytes/write [ 1.956186] sl28cpld 0-004a: successfully probed. CPLD version 18 [ 1.963442] gpio_sl28cpld sl28cpld-gpio: registered IRQ 108 [ 1.974650] gpio_sl28cpld sl28cpld-gpio.0: registered IRQ 108 [ 1.986259] irq_sl28cpld sl28cpld-intc: registered IRQ 108 [ 1.991868] mpt3sas version 34.100.00.00 loaded [ 1.997205] header.nph=2 [ 1.999759] sfdp_size=288 [ 2.002520] spi-nor spi1.0: mx25u3235f (4096 Kbytes) [ 2.011867] header.nph=0 [ 2.014411] sfdp_size=192 [ 2.017084] spi-nor spi0.0: w25q32dw (4096 Kbytes) [ 2.023388] 10 fixed-partitions partitions found on MTD device 20c0000.spi [ 2.030304] Creating 10 MTD partitions on "20c0000.spi": [ 2.035651] 0x000000000000-0x000000010000 : "rcw" [ 2.047220] 0x000000010000-0x000000100000 : "failsafe bootloader" [ 2.063208] 0x000000100000-0x000000140000 : "failsafe DP firmware" [ 2.071251] 0x000000140000-0x0000001e0000 : "failsafe trusted firmware" [ 2.079232] 0x0000001e0000-0x000000200000 : "reserved" [ 2.087241] 0x000000200000-0x000000210000 : "configuration store" [ 2.095230] 0x000000210000-0x000000300000 : "bootloader" [ 2.103241] 0x000000300000-0x000000340000 : "DP firmware" [ 2.111231] 0x000000340000-0x0000003e0000 : "trusted firmware" [ 2.119237] 0x0000003e0000-0x000000400000 : "bootloader environment" [ 2.127850] libphy: Fixed MDIO Bus: probed [ 2.132127] mscc_felix 0000:00:00.5: Link attempted to 5000000.iommu 0x54 [ 2.138951] mscc_felix 0000:00:00.5: Link done to 5000000.iommu 0x54 2 [ 2.145540] mscc_felix 0000:00:00.5: Adding to iommu group 0 [ 2.151355] mscc_felix 0000:00:00.5: device is disabled, skipping [ 2.157513] fsl_enetc 0000:00:00.0: Link attempted to 5000000.iommu 0x54 [ 2.164251] fsl_enetc 0000:00:00.0: Link done to 5000000.iommu 0x54 2 [ 2.170741] fsl_enetc 0000:00:00.0: Adding to iommu group 1 [ 2.282925] fsl_enetc 0000:00:00.0: enabling device (0400 -> 0402) [ 2.289171] fsl_enetc 0000:00:00.0: no MAC address specified for SI1, using 66:04:52:2b:95:04 [ 2.297738] fsl_enetc 0000:00:00.0: no MAC address specified for SI2, using ce:b6:68:6e:fe:21 [ 2.306652] libphy: Freescale ENETC MDIO Bus: probed [ 2.313225] fsl_enetc 0000:00:00.1: Link attempted to 5000000.iommu 0x54 [ 2.319982] fsl_enetc 0000:00:00.1: Link done to 5000000.iommu 0x54 2 [ 2.326486] fsl_enetc 0000:00:00.1: Adding to iommu group 2 [ 2.332170] fsl_enetc 0000:00:00.1: device is disabled, skipping [ 2.338224] fsl_enetc 0000:00:00.2: Link attempted to 5000000.iommu 0x54 [ 2.344957] fsl_enetc 0000:00:00.2: Link done to 5000000.iommu 0x54 2 [ 2.351448] fsl_enetc 0000:00:00.2: Adding to iommu group 3 [ 2.357120] fsl_enetc 0000:00:00.2: device is disabled, skipping [ 2.363170] fsl_enetc 0000:00:00.6: Link attempted to 5000000.iommu 0x54 [ 2.369904] fsl_enetc 0000:00:00.6: Link done to 5000000.iommu 0x54 2 [ 2.376394] fsl_enetc 0000:00:00.6: Adding to iommu group 4 [ 2.382065] fsl_enetc 0000:00:00.6: device is disabled, skipping [ 2.388147] fsl_enetc_mdio 0000:00:00.3: Link attempted to 5000000.iommu 0x54 [ 2.395318] fsl_enetc_mdio 0000:00:00.3: Link done to 5000000.iommu 0x54 2 [ 2.402243] fsl_enetc_mdio 0000:00:00.3: Adding to iommu group 5 [ 2.514920] fsl_enetc_mdio 0000:00:00.3: enabling device (0400 -> 0402) [ 2.521748] libphy: FSL PCIe IE Central MDIO Bus: probed [ 2.527121] igb: Intel(R) Gigabit Ethernet Network Driver - version 5.6.0-k [ 2.534115] igb: Copyright (c) 2007-2014 Intel Corporation. [ 2.539802] dwc3 3100000.usb: Link attempted to 5000000.iommu 0x54 [ 2.546013] dwc3 3100000.usb: Link done to 5000000.iommu 0x44 1 [ 2.551971] dwc3 3100000.usb: Adding to iommu group 6 [ 2.557322] ------------[ cut here ]------------ [ 2.561963] sup:5000000.iommu - con:3100000.usb f:68 s:1 [ 2.567323] WARNING: CPU: 0 PID: 1 at drivers/base/core.c:923 device_links_driver_bound+0x1ec/0x230 [ 2.576404] Modules linked in: [ 2.579467] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.7.0-rc7-next-20200525-00039-gfb6df8136807-dirty #816 [ 2.589332] Hardware name: Kontron SMARC-sAL28 (Single PHY) on SMARC Eval 2.0 carrier (DT) [ 2.597629] pstate: 60000005 (nZCv daif -PAN -UAO BTYPE=--) [ 2.603220] pc : device_links_driver_bound+0x1ec/0x230 [ 2.608375] lr : device_links_driver_bound+0x1ec/0x230 [ 2.613527] sp : ffff8000111dbb70 [ 2.616847] x29: ffff8000111dbb70 x28: ffff00207a421c10 [ 2.622177] x27: ffff00207a420c90 x26: ffff800010be8100 [ 2.627506] x25: 0000000000000003 x24: ffff00207a420cb0 [ 2.632834] x23: ffff800011039948 x22: ffff8000111dbbd8 [ 2.638164] x21: ffff00207a420c10 x20: ffff8000110d2d80 [ 2.643492] x19: ffff00207a401100 x18: 0000000000000010 [ 2.648820] x17: ffffffffffff3f00 x16: 0000000000007fff [ 2.654148] x15: ffffffffffffffff x14: 0720072007200720 [ 2.659476] x13: 0720072007200720 x12: 0720072007200720 [ 2.664806] x11: 0720072007200720 x10: 0720072007200720 [ 2.670134] x9 : ffff800010091f64 x8 : 072007380736073a [ 2.675463] x7 : 000000000000014e x6 : ffff00207ac21f00 [ 2.680791] x5 : 0000000000000000 x4 : 0000000000000000 [ 2.686119] x3 : 00000000ffffffff x2 : ffff80001105b6c8 [ 2.691448] x1 : 1ab261fc7f167400 x0 : 0000000000000000 [ 2.696777] Call trace: [ 2.699228] device_links_driver_bound+0x1ec/0x230 [ 2.704034] driver_bound+0x70/0xc0 [ 2.707530] really_probe+0x110/0x318 [ 2.711202] driver_probe_device+0x40/0x90 [ 2.715309] device_driver_attach+0x7c/0x88 [ 2.719504] __driver_attach+0x60/0xe8 [ 2.723262] bus_for_each_dev+0x7c/0xd0 [ 2.727108] driver_attach+0x2c/0x38 [ 2.730692] bus_add_driver+0x194/0x1f8 [ 2.734538] driver_register+0x6c/0x128 [ 2.738384] __platform_driver_register+0x50/0x60 [ 2.743104] dwc3_driver_init+0x24/0x30 [ 2.746951] do_one_initcall+0x54/0x298 [ 2.750798] kernel_init_freeable+0x1ec/0x268 [ 2.755169] kernel_init+0x1c/0x118 [ 2.758665] ret_from_fork+0x10/0x1c [ 2.762251] ---[ end trace 66805623080b2741 ]--- [ 2.766934] dwc3 3110000.usb: Link attempted to 5000000.iommu 0x54 [ 2.773145] dwc3 3110000.usb: Link done to 5000000.iommu 0x44 1 [ 2.779109] dwc3 3110000.usb: Adding to iommu group 7 [ 2.784414] ------------[ cut here ]------------ [ 2.789055] sup:5000000.iommu - con:3110000.usb f:68 s:1 [ 2.794403] WARNING: CPU: 0 PID: 1 at drivers/base/core.c:923 device_links_driver_bound+0x1ec/0x230 [ 2.803483] Modules linked in: [ 2.806545] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G W 5.7.0-rc7-next-20200525-00039-gfb6df8136807-dirty #816 [ 2.817805] Hardware name: Kontron SMARC-sAL28 (Single PHY) on SMARC Eval 2.0 carrier (DT) [ 2.826101] pstate: 60000005 (nZCv daif -PAN -UAO BTYPE=--) [ 2.831691] pc : device_links_driver_bound+0x1ec/0x230 [ 2.836845] lr : device_links_driver_bound+0x1ec/0x230 [ 2.841999] sp : ffff8000111dbb70 [ 2.845320] x29: ffff8000111dbb70 x28: ffff00207a421c10 [ 2.850648] x27: ffff00207a421090 x26: ffff800010be8100 [ 2.855977] x25: 0000000000000003 x24: ffff00207a4210b0 [ 2.861306] x23: ffff800011039948 x22: ffff8000111dbbd8 [ 2.866634] x21: ffff00207a421010 x20: ffff8000110d2d80 [ 2.871962] x19: ffff00207a401180 x18: 0000000000000010 [ 2.877291] x17: ffffffffffff3f00 x16: 0000000000007fff [ 2.882619] x15: ffffffffffffffff x14: 0720072007200720 [ 2.887947] x13: 0720072007200720 x12: 0720072007200720 [ 2.893275] x11: 0720072007200720 x10: 0720072007200720 [ 2.898603] x9 : ffff800010091f64 x8 : 072007380736073a [ 2.903931] x7 : 000000000000017c x6 : ffff00207ac21f00 [ 2.909260] x5 : 0000000000000000 x4 : 0000000000000000 [ 2.914589] x3 : 00000000ffffffff x2 : ffff80001105b6c8 [ 2.919918] x1 : 1ab261fc7f167400 x0 : 0000000000000000 [ 2.925246] Call trace: [ 2.927696] device_links_driver_bound+0x1ec/0x230 [ 2.932501] driver_bound+0x70/0xc0 [ 2.935998] really_probe+0x110/0x318 [ 2.939669] driver_probe_device+0x40/0x90 [ 2.943777] device_driver_attach+0x7c/0x88 [ 2.947971] __driver_attach+0x60/0xe8 [ 2.951730] bus_for_each_dev+0x7c/0xd0 [ 2.955576] driver_attach+0x2c/0x38 [ 2.959160] bus_add_driver+0x194/0x1f8 [ 2.963006] driver_register+0x6c/0x128 [ 2.966852] __platform_driver_register+0x50/0x60 [ 2.971570] dwc3_driver_init+0x24/0x30 [ 2.975415] do_one_initcall+0x54/0x298 [ 2.979262] kernel_init_freeable+0x1ec/0x268 [ 2.983631] kernel_init+0x1c/0x118 [ 2.987128] ret_from_fork+0x10/0x1c [ 2.990711] ---[ end trace 66805623080b2742 ]--- [ 2.995547] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver [ 3.002107] ehci-pci: EHCI PCI platform driver [ 3.006755] xhci-hcd xhci-hcd.0.auto: xHCI Host Controller [ 3.012277] xhci-hcd xhci-hcd.0.auto: new USB bus registered, assigned bus number 1 [ 3.020107] xhci-hcd xhci-hcd.0.auto: hcc params 0x0220f66d hci version 0x100 quirks 0x0000000002010010 [ 3.029566] xhci-hcd xhci-hcd.0.auto: irq 21, io mem 0x03100000 [ 3.035880] hub 1-0:1.0: USB hub found [ 3.039664] hub 1-0:1.0: 1 port detected [ 3.043707] xhci-hcd xhci-hcd.0.auto: xHCI Host Controller [ 3.049223] xhci-hcd xhci-hcd.0.auto: new USB bus registered, assigned bus number 2 [ 3.056919] xhci-hcd xhci-hcd.0.auto: Host supports USB 3.0 SuperSpeed [ 3.063516] usb usb2: We don't know the algorithms for LPM for this host, disabling LPM. [ 3.071852] hub 2-0:1.0: USB hub found [ 3.075632] hub 2-0:1.0: 1 port detected [ 3.079706] xhci-hcd xhci-hcd.1.auto: xHCI Host Controller [ 3.085229] xhci-hcd xhci-hcd.1.auto: new USB bus registered, assigned bus number 3 [ 3.093068] xhci-hcd xhci-hcd.1.auto: hcc params 0x0220f66d hci version 0x100 quirks 0x0000000002010010 [ 3.102528] xhci-hcd xhci-hcd.1.auto: irq 22, io mem 0x03110000 [ 3.108793] hub 3-0:1.0: USB hub found [ 3.112575] hub 3-0:1.0: 1 port detected [ 3.116614] xhci-hcd xhci-hcd.1.auto: xHCI Host Controller [ 3.122130] xhci-hcd xhci-hcd.1.auto: new USB bus registered, assigned bus number 4 [ 3.129825] xhci-hcd xhci-hcd.1.auto: Host supports USB 3.0 SuperSpeed [ 3.136418] usb usb4: We don't know the algorithms for LPM for this host, disabling LPM. [ 3.144757] hub 4-0:1.0: USB hub found [ 3.148618] hub 4-0:1.0: 1 port detected [ 3.152749] usbcore: registered new interface driver usb-storage [ 3.158957] input: buttons1 as /devices/platform/buttons1/input/input0 [ 3.166848] rtc-rv8803 0-0032: Voltage low, temperature compensation stopped. [ 3.174018] rtc-rv8803 0-0032: Voltage low, data loss detected. [ 3.181022] rtc-rv8803 0-0032: Voltage low, data is invalid. [ 3.186864] rtc-rv8803 0-0032: registered as rtc0 [ 3.192191] rtc-rv8803 0-0032: Voltage low, data is invalid. [ 3.197879] rtc-rv8803 0-0032: hctosys: unable to read the hardware clock [ 3.204782] i2c /dev entries driver [ 3.214327] sp805-wdt c000000.watchdog: registration successful [ 3.220407] sp805-wdt c010000.watchdog: registration successful [ 3.228138] sl28cpld_wdt sl28cpld-wdt: initial timeout 6 sec [ 3.234397] qoriq-cpufreq qoriq-cpufreq: Freescale QorIQ CPU frequency scaling driver [ 3.242965] sdhci: Secure Digital Host Controller Interface driver [ 3.249219] sdhci: Copyright(c) Pierre Ossman [ 3.253631] sdhci-pltfm: SDHCI platform and OF driver helper [ 3.260243] sdhci-esdhc 2140000.mmc: Link attempted to 5000000.iommu 0x54 [ 3.267129] sdhci-esdhc 2140000.mmc: Link done to 5000000.iommu 0x44 1 [ 3.273785] sdhci-esdhc 2140000.mmc: Adding to iommu group 8 [ 3.306689] mmc0: SDHCI controller on 2140000.mmc [2140000.mmc] using ADMA [ 3.313896] ------------[ cut here ]------------ [ 3.318800] sup:5000000.iommu - con:2140000.mmc f:68 s:1 [ 3.324925] WARNING: CPU: 0 PID: 1 at drivers/base/core.c:923 device_links_driver_bound+0x1ec/0x230 [ 3.334038] Modules linked in: [ 3.337128] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G W 5.7.0-rc7-next-20200525-00039-gfb6df8136807-dirty #816 [ 3.348423] Hardware name: Kontron SMARC-sAL28 (Single PHY) on SMARC Eval 2.0 carrier (DT) [ 3.356753] pstate: 60000005 (nZCv daif -PAN -UAO BTYPE=--) [ 3.362371] pc : device_links_driver_bound+0x1ec/0x230 [ 3.367551] lr : device_links_driver_bound+0x1ec/0x230 [ 3.372725] sp : ffff8000111dbb70 [ 3.376064] x29: ffff8000111dbb70 x28: ffff00207a421c10 [ 3.381422] x27: ffff00207a41a490 x26: ffff800010be8100 [ 3.386779] x25: 0000000000000003 x24: ffff00207a41a4b0 [ 3.392133] x23: ffff800011039948 x22: ffff8000111dbbd8 [ 3.397487] x21: ffff00207a41a410 x20: ffff8000110d2d80 [ 3.402840] x19: ffff00207affdf00 x18: 0000000000000001 [ 3.408194] x17: 0000000000000000 x16: 0000000000000003 [ 3.413548] x15: ffffffffffffffff x14: ffff800011039948 [ 3.418902] x13: ffff002079dd2084 x12: ffff002079dd2080 [ 3.424255] x11: 0000000000000000 x10: 00000000000009f0 [ 3.429609] x9 : ffff800010091f64 x8 : ffff00207ae50a50 [ 3.434962] x7 : 00000000ffffffff x6 : 0000000000000001 [ 3.440315] x5 : 0000000000099b88 x4 : 0000000000000000 [ 3.445668] x3 : ffff80206e9df000 x2 : ffff80001105b6c8 [ 3.451021] x1 : 1ab261fc7f167400 x0 : 0000000000000000 [ 3.456375] Call trace: [ 3.458851] device_links_driver_bound+0x1ec/0x230 [ 3.463683] driver_bound+0x70/0xc0 [ 3.467203] really_probe+0x110/0x318 [ 3.470900] driver_probe_device+0x40/0x90 [ 3.475032] device_driver_attach+0x7c/0x88 [ 3.479252] __driver_attach+0x60/0xe8 [ 3.483034] bus_for_each_dev+0x7c/0xd0 [ 3.486903] driver_attach+0x2c/0x38 [ 3.490510] bus_add_driver+0x194/0x1f8 [ 3.494381] driver_register+0x6c/0x128 [ 3.498249] __platform_driver_register+0x50/0x60 [ 3.502992] sdhci_esdhc_driver_init+0x24/0x30 [ 3.507472] do_one_initcall+0x54/0x298 [ 3.511345] kernel_init_freeable+0x1ec/0x268 [ 3.515738] kernel_init+0x1c/0x118 [ 3.519259] ret_from_fork+0x10/0x1c [ 3.522862] ---[ end trace 66805623080b2743 ]--- [ 3.527989] sdhci-esdhc 2150000.mmc: Link attempted to 5000000.iommu 0x54 [ 3.534939] sdhci-esdhc 2150000.mmc: Link done to 5000000.iommu 0x44 1 [ 3.541787] sdhci-esdhc 2150000.mmc: Adding to iommu group 9 [ 3.574704] mmc1: SDHCI controller on 2150000.mmc [2150000.mmc] using ADMA [ 3.581851] ------------[ cut here ]------------ [ 3.586858] sup:5000000.iommu - con:2150000.mmc f:68 s:1 [ 3.592435] usb 3-1: new high-speed USB device number 2 using xhci-hcd [ 3.599148] WARNING: CPU: 1 PID: 1 at drivers/base/core.c:923 device_links_driver_bound+0x1ec/0x230 [ 3.608262] Modules linked in: [ 3.611355] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.7.0-rc7-next-20200525-00039-gfb6df8136807-dirty #816 [ 3.622650] Hardware name: Kontron SMARC-sAL28 (Single PHY) on SMARC Eval 2.0 carrier (DT) [ 3.630981] pstate: 60000005 (nZCv daif -PAN -UAO BTYPE=--) [ 3.636600] pc : device_links_driver_bound+0x1ec/0x230 [ 3.641779] lr : device_links_driver_bound+0x1ec/0x230 [ 3.646953] sp : ffff8000111dbb70 [ 3.650292] x29: ffff8000111dbb70 x28: ffff00207a421c10 [ 3.655651] x27: ffff00207a41a890 x26: ffff800010be8100 [ 3.661007] x25: 0000000000000003 x24: ffff00207a41a8b0 [ 3.666362] x23: ffff800011039948 x22: ffff8000111dbbd8 [ 3.671716] x21: ffff00207a41a810 x20: ffff8000110d2d80 [ 3.677071] x19: ffff00207affdf80 x18: 0000000000000001 [ 3.682426] x17: 0000000000000001 x16: 0000000000000003 [ 3.687780] x15: 0000000000000000 x14: 0000000000000051 [ 3.693133] x13: 0000000000000002 x12: 0000000000000038 [ 3.697688] mmc1: new HS400 MMC card at address 0001 [ 3.698486] x11: 0000000000000040 x10: 00000000000009f0 [ 3.704340] random: fast init done [ 3.708834] x9 : ffff800010091f64 x8 : ffff00207ae50a50 [ 3.717608] x7 : ffff80206e9fd000 x6 : 0000000000000001 [ 3.722962] x5 : 0000000000000000 x4 : 0000000000000000 [ 3.728317] x3 : ffff80206e9fd000 x2 : ffff80001105b6c8 [ 3.733671] x1 : 1ab261fc7f167400 x0 : 0000000000000000 [ 3.739024] Call trace: [ 3.741500] device_links_driver_bound+0x1ec/0x230 [ 3.746332] driver_bound+0x70/0xc0 [ 3.748938] mmc0: new ultra high speed SDR104 SDHC card at address 1234 [ 3.749852] really_probe+0x110/0x318 [ 3.749871] driver_probe_device+0x40/0x90 [ 3.764329] device_driver_attach+0x7c/0x88 [ 3.768549] __driver_attach+0x60/0xe8 [ 3.772330] bus_for_each_dev+0x7c/0xd0 [ 3.776199] driver_attach+0x2c/0x38 [ 3.779807] bus_add_driver+0x194/0x1f8 [ 3.783677] driver_register+0x6c/0x128 [ 3.787544] __platform_driver_register+0x50/0x60 [ 3.792287] sdhci_esdhc_driver_init+0x24/0x30 [ 3.796768] do_one_initcall+0x54/0x298 [ 3.800641] kernel_init_freeable+0x1ec/0x268 [ 3.805035] kernel_init+0x1c/0x118 [ 3.808553] ret_from_fork+0x10/0x1c [ 3.812157] ---[ end trace 66805623080b2744 ]--- [ 3.818250] mmcblk0: mmc0:1234 SA16G 14.4 GiB [ 3.818559] usbcore: registered new interface driver usbhid [ 3.828515] usbhid: USB HID core driver [ 3.829035] mmcblk1: mmc1:0001 S0J58X 29.6 GiB [ 3.833593] wm8904 2-001a: supply DCVDD not found, using dummy regulator [ 3.837947] mmcblk1boot0: mmc1:0001 S0J58X partition 1 31.5 MiB [ 3.843995] wm8904 2-001a: supply DBVDD not found, using dummy regulator [ 3.850718] mmcblk1boot1: mmc1:0001 S0J58X partition 2 31.5 MiB [ 3.856797] wm8904 2-001a: supply AVDD not found, using dummy regulator [ 3.862959] mmcblk0: p1 [ 3.869617] wm8904 2-001a: supply CPVDD not found, using dummy regulator [ 3.872910] hub 3-1:1.0: USB hub found [ 3.879123] wm8904 2-001a: supply MICVDD not found, using dummy regulator [ 3.883857] mmcblk1rpmb: mmc1:0001 S0J58X partition 3 4.00 MiB, chardev (245:0) [ 3.897058] hub 3-1:1.0: 7 ports detected [ 3.902234] wm8904 2-001a: revision A [ 3.907845] mmcblk1: p1 p2 [ 3.921676] NET: Registered protocol family 10 [ 3.927906] Segment Routing with IPv6 [ 3.932235] sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver [ 3.939199] NET: Registered protocol family 17 [ 3.943821] Bridge firewalling registered [ 3.948171] 8021q: 802.1Q VLAN Support v1.8 [ 3.952510] Key type dns_resolver registered [ 3.957237] registered taskstats version 1 [ 3.961422] Loading compiled-in X.509 certificates [ 3.972179] fsl-edma 22c0000.dma-controller: Link attempted to 5000000.iommu 0x54 [ 3.979821] fsl-edma 22c0000.dma-controller: Link done to 5000000.iommu 0x44 1 [ 3.987203] fsl-edma 22c0000.dma-controller: Adding to iommu group 10 [ 3.996584] ------------[ cut here ]------------ [ 4.001284] sup:5000000.iommu - con:22c0000.dma-controller f:68 s:1 [ 4.007691] WARNING: CPU: 1 PID: 23 at drivers/base/core.c:923 device_links_driver_bound+0x1ec/0x230 [ 4.016888] Modules linked in: [ 4.019983] CPU: 1 PID: 23 Comm: kworker/1:1 Tainted: G W 5.7.0-rc7-next-20200525-00039-gfb6df8136807-dirty #816 [ 4.031540] Hardware name: Kontron SMARC-sAL28 (Single PHY) on SMARC Eval 2.0 carrier (DT) [ 4.039877] Workqueue: events deferred_probe_work_func [ 4.045062] pstate: 60000005 (nZCv daif -PAN -UAO BTYPE=--) [ 4.050680] pc : device_links_driver_bound+0x1ec/0x230 [ 4.055860] lr : device_links_driver_bound+0x1ec/0x230 [ 4.061033] sp : ffff800011fb3b70 [ 4.064373] x29: ffff800011fb3b70 x28: ffff00207a421c10 [ 4.069731] x27: ffff00207a41bc90 x26: ffff800010be8100 [ 4.075087] x25: 0000000000000003 x24: ffff00207a41bcb0 [ 4.080442] x23: ffff800011039948 x22: ffff800011fb3bd8 [ 4.085797] x21: ffff00207a41bc10 x20: ffff8000110d2d80 [ 4.091151] x19: ffff00207a401080 x18: 0000000000000010 [ 4.096506] x17: 000000003b471451 x16: 00000000c282b760 [ 4.101861] x15: ffffffffffffffff x14: 0720072007200720 [ 4.107215] x13: 0720072007200720 x12: 072007200731073a [ 4.112570] x11: 0773072007380736 x10: 073a076607200772 [ 4.117924] x9 : ffff800010091f64 x8 : 07720774076e076f [ 4.123279] x7 : 0000000000000250 x6 : ffff00207ac21f00 [ 4.128633] x5 : 0000000000000000 x4 : 0000000000000000 [ 4.133987] x3 : 00000000ffffffff x2 : ffff80001105b6c8 [ 4.139340] x1 : 1ab261fc7f167400 x0 : 0000000000000000 [ 4.144694] Call trace: [ 4.147170] device_links_driver_bound+0x1ec/0x230 [ 4.152003] driver_bound+0x70/0xc0 [ 4.155524] really_probe+0x110/0x318 [ 4.159221] driver_probe_device+0x40/0x90 [ 4.163355] __device_attach_driver+0x8c/0xd0 [ 4.167748] bus_for_each_drv+0x84/0xd8 [ 4.171617] __device_attach+0xd4/0x110 [ 4.175487] device_initial_probe+0x1c/0x28 [ 4.179706] bus_probe_device+0xa4/0xb0 [ 4.183576] deferred_probe_work_func+0x7c/0xb8 [ 4.188148] process_one_work+0x1f4/0x4b8 [ 4.192194] worker_thread+0x218/0x498 [ 4.195978] kthread+0x160/0x168 [ 4.199237] ret_from_fork+0x10/0x1c [ 4.202841] ---[ end trace 66805623080b2746 ]--- [ 4.207699] pcieport 0001:00:00.0: Link attempted to 5000000.iommu 0x54 [ 4.214416] pcieport 0001:00:00.0: Link done to 5000000.iommu 0x54 2 [ 4.220935] pcieport 0001:00:00.0: Adding to iommu group 11 [ 4.227403] pcieport 0001:00:00.0: AER: enabled with IRQ 24 [ 4.233376] pcieport 0002:00:00.0: Link attempted to 5000000.iommu 0x54 [ 4.240093] pcieport 0002:00:00.0: Link done to 5000000.iommu 0x54 2 [ 4.246616] pcieport 0002:00:00.0: Adding to iommu group 12 [ 4.253011] pcieport 0002:00:00.0: AER: enabled with IRQ 26 [ 4.259133] fsl-qdma 8380000.dma-controller: Link attempted to 5000000.iommu 0x54 [ 4.266717] fsl-qdma 8380000.dma-controller: Link done to 5000000.iommu 0x44 1 [ 4.266986] usb 3-1.6: new full-speed USB device number 3 using xhci-hcd [ 4.274077] fsl-qdma 8380000.dma-controller: Adding to iommu group 13 [ 4.288640] ------------[ cut here ]------------ [ 4.293339] sup:5000000.iommu - con:8380000.dma-controller f:68 s:1 [ 4.299740] WARNING: CPU: 1 PID: 23 at drivers/base/core.c:923 device_links_driver_bound+0x1ec/0x230 [ 4.308937] Modules linked in: [ 4.312029] CPU: 1 PID: 23 Comm: kworker/1:1 Tainted: G W 5.7.0-rc7-next-20200525-00039-gfb6df8136807-dirty #816 [ 4.323583] Hardware name: Kontron SMARC-sAL28 (Single PHY) on SMARC Eval 2.0 carrier (DT) [ 4.331920] Workqueue: events deferred_probe_work_func [ 4.337105] pstate: 60000005 (nZCv daif -PAN -UAO BTYPE=--) [ 4.342722] pc : device_links_driver_bound+0x1ec/0x230 [ 4.347900] lr : device_links_driver_bound+0x1ec/0x230 [ 4.353074] sp : ffff800011fb3b70 [ 4.356413] x29: ffff800011fb3b70 x28: ffff00207a421c10 [ 4.361769] x27: ffff00207a422090 x26: ffff800010be8100 [ 4.367123] x25: 0000000000000003 x24: ffff00207a4220b0 [ 4.372477] x23: ffff800011039948 x22: ffff800011fb3bd8 [ 4.377831] x21: ffff00207a422010 x20: ffff8000110d2d80 [ 4.383185] x19: ffff00207a401300 x18: 0000000000000010 [ 4.388540] x17: 000000003b471451 x16: 00000000c282b760 [ 4.393893] x15: ffffffffffffffff x14: 0720072007200720 [ 4.399247] x13: 0720072007200720 x12: 072007200731073a [ 4.404601] x11: 0773072007380736 x10: 073a076607200772 [ 4.409953] x9 : ffff800010091f64 x8 : 07720774076e076f [ 4.415307] x7 : 0000000000000286 x6 : ffff00207ac21f00 [ 4.420661] x5 : 0000000000000000 x4 : 0000000000000000 [ 4.426014] x3 : 00000000ffffffff x2 : ffff80001105b6c8 [ 4.431368] x1 : 1ab261fc7f167400 x0 : 0000000000000000 [ 4.436720] Call trace: [ 4.439194] device_links_driver_bound+0x1ec/0x230 [ 4.444025] driver_bound+0x70/0xc0 [ 4.447546] really_probe+0x110/0x318 [ 4.451241] driver_probe_device+0x40/0x90 [ 4.455374] __device_attach_driver+0x8c/0xd0 [ 4.459767] bus_for_each_drv+0x84/0xd8 [ 4.463637] __device_attach+0xd4/0x110 [ 4.467508] device_initial_probe+0x1c/0x28 [ 4.471727] bus_probe_device+0xa4/0xb0 [ 4.475598] deferred_probe_work_func+0x7c/0xb8 [ 4.480171] process_one_work+0x1f4/0x4b8 [ 4.484217] worker_thread+0x218/0x498 [ 4.488000] kthread+0x160/0x168 [ 4.491258] ret_from_fork+0x10/0x1c [ 4.494860] ---[ end trace 66805623080b2747 ]--- [ 4.506099] asoc-simple-card sound: wm8904-hifi <-> f150000.audio-controller mapping ok [ 4.516423] asoc-simple-card sound: wm8904-hifi <-> f140000.audio-controller mapping ok [ 4.524640] asoc-simple-card sound: ASoC: no DMI vendor name! [ 4.536154] input: buttons0 as /devices/platform/buttons0/input/input1 [ 4.543482] ALSA device list: [ 4.546485] #0: f150000.audio-controller-wm8904-hifi [ 4.556559] EXT4-fs (mmcblk1p2): INFO: recovery required on readonly filesystem [ 4.563980] EXT4-fs (mmcblk1p2): write access will be enabled during recovery [ 4.593873] EXT4-fs (mmcblk1p2): recovery complete [ 4.600997] EXT4-fs (mmcblk1p2): mounted filesystem with ordered data mode. Opts: (null) [ 4.609274] VFS: Mounted root (ext4 filesystem) readonly on device 179:34. [ 4.616849] devtmpfs: mounted [ 4.630806] Freeing unused kernel memory: 3328K [ 4.635633] Run /sbin/init as init process [ 4.639794] with arguments: [ 4.642787] /sbin/init [ 4.645540] with environment: [ 4.648732] HOME=/ [ 4.651137] TERM=linux [ 4.703603] EXT4-fs (mmcblk1p2): re-mounted. Opts: (null) [ 4.870886] udevd[131]: starting version 3.2.8 [ 4.877666] random: udevd: uninitialized urandom read (16 bytes read) [ 4.885558] random: udevd: uninitialized urandom read (16 bytes read) [ 4.892231] random: udevd: uninitialized urandom read (16 bytes read) [ 4.903984] udevd[131]: specified group 'kvm' unknown [ 4.931812] udevd[132]: starting eudev-3.2.8 [ 7.218596] fsl_enetc 0000:00:00.0 gbe0: renamed from eth0 [ 10.127116] urandom_read: 3 callbacks suppressed [ 10.127128] random: dd: uninitialized urandom read (512 bytes read) [ 10.288166] Qualcomm Atheros AR8031/AR8033 0000:00:00.0:05: attached PHY driver [Qualcomm Atheros AR8031/AR8033] (mii_bus:phy_addr=0000:00:00.0:05, irq=POLL) [ 10.323322] fsl_enetc 0000:00:00.0 gbe0: Link is Down [ 10.384814] random: dropbear: uninitialized urandom read (32 bytes read) [ 16.451528] fsl_enetc 0000:00:00.0 gbe0: Link is Up - 1Gbps/Full - flow control off [ 16.459327] IPv6: ADDRCONF(NETDEV_CHANGE): gbe0: link becomes ready

-michael