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[PATCH] acpi: intel_idle : break dependency between modules

by Daniel Lezcano

When the system is booted with some cpus offline, the idle driver is not initialized. When a cpu is set online, the acpi code call the intel idle init function. Unfortunately this code introduce a dependency between intel_idle and acpi. This patch is intended to remove this dependency by using the notifier of intel_idle. In order to make it work, the notifier must be initialized in the right order, acpi then intel_idle. This is done in the Makefile. This patch has the benefit of encapsulating the intel_idle driver and remove some exported functions. Signed-off-by: Daniel Lezcano <daniel.lezcano(a)linaro.org> --- drivers/Makefile | 3 ++- drivers/acpi/processor_driver.c | 7 ------- drivers/idle/intel_idle.c | 22 ++++++++++++++-------- include/linux/cpuidle.h | 7 ------- 4 files changed, 16 insertions(+), 23 deletions(-) diff --git a/drivers/Makefile b/drivers/Makefile index 2ba29ff..a2454b8 100644 --- a/drivers/Makefile +++ b/drivers/Makefile @@ -12,8 +12,9 @@ obj-$(CONFIG_PCI) += pci/ obj-$(CONFIG_PARISC) += parisc/ obj-$(CONFIG_RAPIDIO) += rapidio/ obj-y += video/ -obj-y += idle/ +# acpi must come before idle for initialization obj-$(CONFIG_ACPI) += acpi/ +obj-y += idle/ obj-$(CONFIG_SFI) += sfi/ # PnP must come after ACPI since it will eventually need to check if acpi # was used and do nothing if so diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c index 0734086..8648b29 100644 --- a/drivers/acpi/processor_driver.c +++ b/drivers/acpi/processor_driver.c @@ -427,18 +427,11 @@ static int acpi_cpu_soft_notify(struct notifier_block *nfb, * Initialize missing things */ if (pr->flags.need_hotplug_init) { - struct cpuidle_driver *idle_driver = - cpuidle_get_driver(); - printk(KERN_INFO "Will online and init hotplugged " "CPU: %d\n", pr->id); WARN(acpi_processor_start(pr), "Failed to start CPU:" " %d\n", pr->id); pr->flags.need_hotplug_init = 0; - if (idle_driver && !strcmp(idle_driver->name, - "intel_idle")) { - intel_idle_cpu_init(pr->id); - } /* Normal CPU soft online event */ } else { acpi_processor_ppc_has_changed(pr, 0); diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c index d0f59c3..4c36039 100644 --- a/drivers/idle/intel_idle.c +++ b/drivers/idle/intel_idle.c @@ -96,6 +96,7 @@ static const struct idle_cpu *icpu; static struct cpuidle_device __percpu *intel_idle_cpuidle_devices; static int intel_idle(struct cpuidle_device *dev, struct cpuidle_driver *drv, int index); +static int intel_idle_cpu_init(int cpu); static struct cpuidle_state *cpuidle_state_table; @@ -302,22 +303,28 @@ static void __setup_broadcast_timer(void *arg) clockevents_notify(reason, &cpu); } -static int setup_broadcast_cpuhp_notify(struct notifier_block *n, - unsigned long action, void *hcpu) +static int cpu_hotplug_notify(struct notifier_block *n, + unsigned long action, void *hcpu) { int hotcpu = (unsigned long)hcpu; + struct cpuidle_device *dev; switch (action & 0xf) { case CPU_ONLINE: smp_call_function_single(hotcpu, __setup_broadcast_timer, (void *)true, 1); + + dev = per_cpu_ptr(intel_idle_cpuidle_devices, hotcpu); + if (!dev->registered) + intel_idle_cpu_init(hotcpu); + break; } return NOTIFY_OK; } -static struct notifier_block setup_broadcast_notifier = { - .notifier_call = setup_broadcast_cpuhp_notify, +static struct notifier_block cpu_hotplug_notifier = { + .notifier_call = cpu_hotplug_notify, }; static void auto_demotion_disable(void *dummy) @@ -407,7 +414,7 @@ static int intel_idle_probe(void) lapic_timer_reliable_states = LAPIC_TIMER_ALWAYS_RELIABLE; else { on_each_cpu(__setup_broadcast_timer, (void *)true, 1); - register_cpu_notifier(&setup_broadcast_notifier); + register_cpu_notifier(&cpu_hotplug_notifier); } pr_debug(PREFIX "v" INTEL_IDLE_VERSION @@ -494,7 +501,7 @@ static int intel_idle_cpuidle_driver_init(void) * allocate, initialize, register cpuidle_devices * @cpu: cpu/core to initialize */ -int intel_idle_cpu_init(int cpu) +static int intel_idle_cpu_init(int cpu) { int cstate; struct cpuidle_device *dev; @@ -539,7 +546,6 @@ int intel_idle_cpu_init(int cpu) return 0; } -EXPORT_SYMBOL_GPL(intel_idle_cpu_init); static int __init intel_idle_init(void) { @@ -583,7 +589,7 @@ static void __exit intel_idle_exit(void) if (lapic_timer_reliable_states != LAPIC_TIMER_ALWAYS_RELIABLE) { on_each_cpu(__setup_broadcast_timer, (void *)false, 1); - unregister_cpu_notifier(&setup_broadcast_notifier); + unregister_cpu_notifier(&cpu_hotplug_notifier); } return; diff --git a/include/linux/cpuidle.h b/include/linux/cpuidle.h index 5ab7183..66d7e0d 100644 --- a/include/linux/cpuidle.h +++ b/include/linux/cpuidle.h @@ -213,14 +213,7 @@ struct cpuidle_governor { extern int cpuidle_register_governor(struct cpuidle_governor *gov); extern void cpuidle_unregister_governor(struct cpuidle_governor *gov); -#ifdef CONFIG_INTEL_IDLE -extern int intel_idle_cpu_init(int cpu); #else -static inline int intel_idle_cpu_init(int cpu) { return -1; } -#endif - -#else -static inline int intel_idle_cpu_init(int cpu) { return -1; } static inline int cpuidle_register_governor(struct cpuidle_governor *gov) {return 0;} -- 1.7.5.4

13 years, 4 months

[PATCH 0/7] add Power and Voltage Domain Support to Powerdebug

by evttxl＠gmail.com

From: Eric van Tassell <evt(a)evtM17x.(none)> Since my first attempt at doing this by analogy to what's already in powerdebug(tree of sysfs files) was rejected because reviewers didn't want to add a bunch more OMAP specific files to sysfs, I rewrote things in userland. There are a few basic chunks to the changes: 1) Add code to parse a CSV-like config file that defines a heirarchy of whatever form you want where the leaves are fields in mmio registers. Include decoders for the field values something easy to read (ex: "off" instead of 0) 2) A code to build a tree that the powerdebug framework walks from a CSV config file 3) A small bit of code to read the mmio regs via /dev/mem 4) One example config file each for Power & Voltage Domains. It's all tested on OMAP4430(panda) but the config file mechanism is completely general. Eric van Tassell (7): - add config files to define selected power domain and voltage domain registers for OMAP4430 add delimi.* to parse config files with clone of strchrnul - add support for reading memory mapped I/O registers via /dev/mem - add support to display fields of memory mapped I/O registers with optional value decoding as defined by config files - largest commit of this series. Provide an instance of the tree abstraction used by powerdebug core that is built by parsing a config file instead of walking a debugfs tree as, for example, the sensor functionality does - add display options for Voltage and Power domains - enable extended display function call - add options for power and voltage domains - call tree_mgr_new to create the objects that implement them - cleanup Android.mk | 4 +- Makefile | 4 +- delimi.c | 106 +++++++++++++++++++ delimi.h | 30 ++++++ dirtree.c | 149 +++++++++++++++++++++++++++ dirtree.h | 22 ++++ display.c | 30 +++++- display.h | 4 +- mainloop.c | 2 + mmioreg.c | 77 ++++++++++++++ mmioreg.h | 27 +++++ powerdebug.c | 56 +++++++++-- pwrdm.regdefs.omap4 | 33 ++++++ regfield.c | 279 +++++++++++++++++++++++++++++++++++++++++++++++++++ regfield.h | 52 ++++++++++ tree.c | 28 ++++++ tree.h | 11 +- tree_mgr.c | 203 +++++++++++++++++++++++++++++++++++++ tree_mgr.h | 25 +++++ utils.c | 69 +++++++++++++ utils.h | 15 ++- vdd.regdefs.omap4 | 68 +++++++++++++ 22 files changed, 1275 insertions(+), 19 deletions(-) create mode 100644 delimi.c create mode 100644 delimi.h create mode 100644 dirtree.c create mode 100644 dirtree.h create mode 100644 mmioreg.c create mode 100644 mmioreg.h create mode 100644 pwrdm.regdefs.omap4 create mode 100644 regfield.c create mode 100644 regfield.h create mode 100644 tree_mgr.c create mode 100644 tree_mgr.h create mode 100644 vdd.regdefs.omap4 -- 1.7.9.5

13 years, 4 months

Question PLZ

by Ahmed Elshafey

Hello We are a graduation project and we work on i.mx53 quick start board, We need to run android on it and we don't know how to begin any help, please ? thanks -- *Ahmed Elshafey* CSED Student

13 years, 4 months

Black screen when booting Ubuntu

by David Cullen

Hello, linaro-dev, I apologize for the multiple posts. -- Thank you, David

13 years, 4 months

Black screen and mouse pointer when booting Ubuntu

by David Cullen

Hello, linaro-dev, When I boot the Ubuntu desktop image available from http://releases.linaro.org/12.06/ubuntu/leb-panda/lt-panda-x11-base_2012062… all I see is a black screen and the mouse pointer. I see some messages on the console like [ 13.996887] (stk) : timed out waiting for ldisc to be un-installed [ 15.145019] (stk) :ldisc installation timeout and [ 22.983459] omap-hdmi-audio-dai omap-hdmi-audio-dai: audio not supported [ 22.990631] omap-hdmi-audio-dai omap-hdmi-audio-dai: can't open interface omap-hdmi-audio-dai: -19 My PandaBoard is connected to a Dell monitor with a native resolution of 1680 x 1050. Is this a problem? -- Thank you, David Cullen

13 years, 4 months

first version of Linux Linaro Maintenance script is published

by Andrey Konovalov

Greetings, I've published the current version of the script used to maintain the Linux Linaro kernel trees. It is still at early stages of the development, and has a big room for enhancements and improvements. Nevertheless, it can recreate the earlier trees from the pinned manifests (and do some other stuff). For some more details see https://wiki.linaro.org/Platform/DevPlatform/LinuxLinaroKernelTreeProcess#L… If interested, you can use ll-fold.sh in the way described at the wiki page above at your own risk :) Thanks, Andrey

13 years, 4 months

Black screen when booting Ubuntu

by David Cullen

13 years, 4 months

Linaro recommended (tm) brand of SD card?

by Michael Hudson-Doyle

Hi, The SD card I routinely use for testing which I got at some Linaro meeting or other has fallen apart (physically), so I'm on the hunt for a new one. Does anyone have a recommendation of a brand of card I should be looking for? For LAVA stuff, it needs to be at least 8 gigs. Cheers, mwh

13 years, 4 months

How can I contribute to android-ucm project?

by Claude Youn

Dear Mr Kurt Taylor, Hello, I'm Claude Youn, work for InSignal, she made Origen board. I'm so interest your project 'android-ucm', because I have a role on sound of Origen board. And also Mr Bernard Park, who is in Linaro, asked me to support audio and origen board works for linaro. :) After that, I asked to Mr Mark brown, ASoC maintainer, about his tinyhal project status, and he answered me to contect to you. For now, I worked audioHAL of Origen board from alsa HAL, which was ported by windriver guys, with some modifications. And also I ported tinyhal, from Mr Mark Brown's git. :) But it's not enought to be a official one, I think. See below links, - alsa legacy porting based hal http://git.insignal.co.kr/?p=insignal-android/vendor/insignal/hal/alsahw_le… - tinyhal based audio hal http://git.insignal.co.kr/?p=insignal-android/vendor/insignal/hal/tinyhal.g… So, how can I contribute to your project? Can you share your plan to me? with best regards, claude

13 years, 4 months

alloc failed, but?

by Tom Gall

Hi All, I'm stressing a system with apachebench. As one scales up work on a system obviously there's always a point where the wheels fall off, the engine explodes or something else exciting happens. But as Han Solo would say ... "hold together baby....", I'd like to eek out as much as I can. (If you're really interested, here's what I'm up to : http://fullshovel.wordpress.com/ start with part 1) In this case with apachebench, I'm geting the following allocation errors in the kernel and need a little help deciphering. It sure looks like there's plenty of space to swap out however if I have this right, we're getting so much network traffic that the kernel gets inundated and it OOMs in the network stack. I did later try setting sysctl -w vm.min_free_kbytes=32768 but that didn't really seem to help. The much more complete dmesg dump is located at http://people.linaro.org/~tgall/dmesg-dump.txt Thanks in advance for thoughts and advise. [127089.668487] smsc95xx 1-1.1:1.0: eth0: kevent 2 may have been dropped [127089.675994] smsc95xx 1-1.1:1.0: eth0: kevent 2 may have been dropped [127089.683502] smsc95xx 1-1.1:1.0: eth0: kevent 2 may have been dropped [127089.690979] smsc95xx 1-1.1:1.0: eth0: kevent 2 may have been dropped [127089.698455] smsc95xx 1-1.1:1.0: eth0: kevent 2 may have been dropped [127089.705932] smsc95xx 1-1.1:1.0: eth0: kevent 2 may have been dropped [127089.713409] smsc95xx 1-1.1:1.0: eth0: kevent 2 may have been dropped [127089.720886] smsc95xx 1-1.1:1.0: eth0: kevent 2 may have been dropped [127089.728363] smsc95xx 1-1.1:1.0: eth0: kevent 2 may have been dropped [127096.934051] Initial hdmi_get_current_hpd says disconnected [127100.245117] warn_alloc_failed: 52 callbacks suppressed [127100.245117] swapper/0: page allocation failure: order:3, mode:0x20 [127100.245117] [<8001b8d0>] (unwind_backtrace+0x0/0xec) from [<806905d0>] (dump_stack+0x20/0x24) [127100.245544] [<806905d0>] (dump_stack+0x20/0x24) from [<800fe390>] (warn_alloc_failed+0xfc/0x11c) [127100.245544] [<800fe390>] (warn_alloc_failed+0xfc/0x11c) from [<80100f14>] (__alloc_pages_nodemask+0x678/0x7a4) [127100.245666] [<80100f14>] (__alloc_pages_nodemask+0x678/0x7a4) from [<80695270>] (kmem_getpages.isra.35+0x3c/0xc0) [127100.245666] [<80695270>] (kmem_getpages.isra.35+0x3c/0xc0) from [<80695380>] (cache_grow.constprop.37+0x8c/0x1fc) [127100.245666] [<80695380>] (cache_grow.constprop.37+0x8c/0x1fc) from [<8069570c>] (cache_alloc_refill+0x21c/0x274) [127100.245819] [<8069570c>] (cache_alloc_refill+0x21c/0x274) from [<80132dac>] (__kmalloc_track_caller+0xac/0x1b0) [127100.245910] [<80132dac>] (__kmalloc_track_caller+0xac/0x1b0) from [<8057a37c>] (__alloc_skb+0x60/0xfc) [127100.245971] [<8057a37c>] (__alloc_skb+0x60/0xfc) from [<8057a874>] (__netdev_alloc_skb+0x2c/0x54) [127100.245971] [<8057a874>] (__netdev_alloc_skb+0x2c/0x54) from [<8049dbb8>] (rx_submit+0x2c/0x1d4) [127100.245971] [<8049dbb8>] (rx_submit+0x2c/0x1d4) from [<8049e1c0>] (rx_complete+0x1a4/0x1b8) [127100.245971] [<8049e1c0>] (rx_complete+0x1a4/0x1b8) from [<804a5f38>] (usb_hcd_giveback_urb+0xb0/0xfc) [127100.246246] [<804a5f38>] (usb_hcd_giveback_urb+0xb0/0xfc) from [<804b887c>] (ehci_urb_done+0xb8/0xc4) [127100.246246] [<804b887c>] (ehci_urb_done+0xb8/0xc4) from [<804bb240>] (qh_completions+0xc8/0x49c) [127100.246307] [<804bb240>] (qh_completions+0xc8/0x49c) from [<804bdcd0>] (scan_async+0x88/0x154) [127100.246398] [<804bdcd0>] (scan_async+0x88/0x154) from [<804be138>] (ehci_work+0x40/0x98) [127100.246398] [<804be138>] (ehci_work+0x40/0x98) from [<804bf9c4>] (ehci_irq+0x33c/0x3a4) [127100.246459] [<804bf9c4>] (ehci_irq+0x33c/0x3a4) from [<804a53ac>] (usb_hcd_irq+0x40/0x50) [127100.246459] [<804a53ac>] (usb_hcd_irq+0x40/0x50) from [<800bf45c>] (handle_irq_event_percpu+0xc4/0x298) [127100.246459] [<800bf45c>] (handle_irq_event_percpu+0xc4/0x298) from [<800bf67c>] (handle_irq_event+0x4c/0x6c) [127100.246459] [<800bf67c>] (handle_irq_event+0x4c/0x6c) from [<800c23b4>] (handle_fasteoi_irq+0xd8/0x124) [127100.246734] [<800c23b4>] (handle_fasteoi_irq+0xd8/0x124) from [<800bedd0>] (generic_handle_irq+0x30/0x40) [127100.246765] [<800bedd0>] (generic_handle_irq+0x30/0x40) from [<800140c4>] (handle_IRQ+0x88/0xc8) [127100.246826] [<800140c4>] (handle_IRQ+0x88/0xc8) from [<800086d8>] (gic_handle_irq+0x80/0xac) [127100.246917] [<800086d8>] (gic_handle_irq+0x80/0xac) from [<806a91c0>] (__irq_svc+0x40/0x70) [127100.246917] Exception stack(0x80a47bf8 to 0x80a47c40) [127100.246978] 7be0: 0000000d 00002180 [127100.247009] 7c00: 0000000d 00000005 8bb55040 8236d180 00f7a819 81e00d5a 00000068 80c5ee80 [127100.247100] 7c20: 00000002 80a47c5c 80a47c40 80a47c40 805c734c 805c9a70 80070113 ffffffff [127100.247100] [<806a91c0>] (__irq_svc+0x40/0x70) from [<805c9a70>] (tcp_event_data_recv+0x118/0x194) [127100.247161] [<805c9a70>] (tcp_event_data_recv+0x118/0x194) from [<805cc554>] (tcp_data_queue+0x30c/0x998) [127100.247222] [<805cc554>] (tcp_data_queue+0x30c/0x998) from [<805cfa30>] (tcp_rcv_established+0x668/0x73c) [127100.247222] [<805cfa30>] (tcp_rcv_established+0x668/0x73c) from [<805d684c>] (tcp_v4_do_rcv+0x90/0x220) [127100.247222] [<805d684c>] (tcp_v4_do_rcv+0x90/0x220) from [<805d8bac>] (tcp_v4_rcv+0x550/0x928) [127100.247222] [<805d8bac>] (tcp_v4_rcv+0x550/0x928) from [<805b68e0>] (ip_local_deliver_finish+0x1b0/0x370) [127100.247222] [<805b68e0>] (ip_local_deliver_finish+0x1b0/0x370) from [<805b6c30>] (ip_local_deliver+0x98/0xa8) [127100.247222] [<805b6c30>] (ip_local_deliver+0x98/0xa8) from [<805b670c>] (ip_rcv_finish+0x4b8/0x4dc) [127100.247619] [<805b670c>] (ip_rcv_finish+0x4b8/0x4dc) from [<805b6fd4>] (ip_rcv+0x394/0x414) [127100.247619] [<805b6fd4>] (ip_rcv+0x394/0x414) from [<805832e0>] (__netif_receive_skb+0x4dc/0x550) [127100.247741] [<805832e0>] (__netif_receive_skb+0x4dc/0x550) from [<805833ec>] (process_backlog+0x98/0x168) [127100.247741] [<805833ec>] (process_backlog+0x98/0x168) from [<80586674>] (net_rx_action+0xc8/0x31c) [127100.247741] [<80586674>] (net_rx_action+0xc8/0x31c) from [<8004d28c>] (__do_softirq+0x140/0x27c) [127100.247894] [<8004d28c>] (__do_softirq+0x140/0x27c) from [<8004d864>] (irq_exit+0x58/0xac) [127100.247955] [<8004d864>] (irq_exit+0x58/0xac) from [<800140c8>] (handle_IRQ+0x8c/0xc8) [127100.248016] [<800140c8>] (handle_IRQ+0x8c/0xc8) from [<800086d8>] (gic_handle_irq+0x80/0xac) [127100.248077] [<800086d8>] (gic_handle_irq+0x80/0xac) from [<806a91c0>] (__irq_svc+0x40/0x70) [127100.248107] Exception stack(0x80a47f38 to 0x80a47f80) [127100.248107] 7f20: 00000003 00000000 [127100.248168] 7f40: 00000000 8002ce7c 80a46000 80a4e3e0 806b3f50 80a4e290 80ab8988 412fc09a [127100.248199] 7f60: 00000000 80a47f8c 80a47f90 80a47f80 8002b340 8002cea4 60070113 ffffffff [127100.248260] [<806a91c0>] (__irq_svc+0x40/0x70) from [<8002cea4>] (omap_default_idle+0x28/0x2c) [127100.248352] [<8002cea4>] (omap_default_idle+0x28/0x2c) from [<80014630>] (cpu_idle+0x9c/0x104) [127100.248413] [<80014630>] (cpu_idle+0x9c/0x104) from [<8067d648>] (rest_init+0x8c/0xa4) [127100.248474] [<8067d648>] (rest_init+0x8c/0xa4) from [<809d98a8>] (start_kernel+0x2b8/0x314) [127100.248474] Mem-info: [127100.248535] Normal per-cpu: [127100.248535] CPU 0: hi: 186, btch: 31 usd: 181 [127100.248565] CPU 1: hi: 186, btch: 31 usd: 70 [127100.248596] active_anon:21239 inactive_anon:6225 isolated_anon:0 [127100.248657] active_file:52057 inactive_file:111715 isolated_file:0 [127100.248657] unevictable:0 dirty:180 writeback:0 unstable:0 [127100.248687] free:38073 slab_reclaimable:6423 slab_unreclaimable:4248 [127100.248687] mapped:5616 shmem:4706 pagetables:393 bounce:0 [127100.248779] Normal free:152292kB min:8192kB low:10240kB high:12288kB active_anon:84956kB inactive_anon:24900kB active_file:208228kB inactive_file:446860kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:1039360kB mlocked:0kB dirty:720kB writeback:0kB mapped:22464kB shmem:18824kB slab_reclaimable:25692kB slab_unreclaimable:16992kB kernel_stack:1056kB pagetables:1572kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no [127100.248870] lowmem_reserve[]: 0 0 0 [127100.248870] Normal: 4855*4kB 4831*8kB 4221*16kB 710*32kB 61*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 152228kB [127100.249053] 168490 total pagecache pages [127100.249053] 0 pages in swap cache [127100.249084] Swap cache stats: add 0, delete 0, find 0/0 [127100.249114] Free swap = 1847468kB [127100.249114] Total swap = 1847468kB [127100.291046] 262144 pages of RAM [127100.291076] 38638 free pages [127100.291076] 18477 reserved pages [127100.291107] 10718 slab pages [127100.291137] 158595 pages shared [127100.291137] 0 pages swap cached [127100.291320] swapper/0: page allocation failure: order:3, mode:0x20 [127100.291412] [<8001b8d0>] (unwind_backtrace+0x0/0xec) from [<806905d0>] (dump_stack+0x20/0x24) [127100.291503] [<806905d0>] (dump_stack+0x20/0x24) from [<800fe390>] (warn_alloc_failed+0xfc/0x11c) [127100.291564] [<800fe390>] (warn_alloc_failed+0xfc/0x11c) from [<80100f14>] (__alloc_pages_nodemask+0x678/0x7a4) [127100.291625] [<80100f14>] (__alloc_pages_nodemask+0x678/0x7a4) from [<80695270>] (kmem_getpages.isra.35+0x3c/0xc0) [127100.291656] [<80695270>] (kmem_getpages.isra.35+0x3c/0xc0) from [<80695380>] (cache_grow.constprop.37+0x8c/0x1fc) [127100.291717] [<80695380>] (cache_grow.constprop.37+0x8c/0x1fc) from [<8069570c>] (cache_alloc_refill+0x21c/0x274) [127100.291778] [<8069570c>] (cache_alloc_refill+0x21c/0x274) from [<80132dac>] (__kmalloc_track_caller+0xac/0x1b0) [127100.291839] [<80132dac>] (__kmalloc_track_caller+0xac/0x1b0) from [<8057a37c>] (__alloc_skb+0x60/0xfc) [127100.291900] [<8057a37c>] (__alloc_skb+0x60/0xfc) from [<8057a874>] (__netdev_alloc_skb+0x2c/0x54) [127100.291961] [<8057a874>] (__netdev_alloc_skb+0x2c/0x54) from [<8049dbb8>] (rx_submit+0x2c/0x1d4) [127100.292022] [<8049dbb8>] (rx_submit+0x2c/0x1d4) from [<8049e1c0>] (rx_complete+0x1a4/0x1b8) [127100.292083] [<8049e1c0>] (rx_complete+0x1a4/0x1b8) from [<804a5f38>] (usb_hcd_giveback_urb+0xb0/0xfc) [127100.292144] [<804a5f38>] (usb_hcd_giveback_urb+0xb0/0xfc) from [<804b887c>] (ehci_urb_done+0xb8/0xc4) [127100.292205] [<804b887c>] (ehci_urb_done+0xb8/0xc4) from [<804bb240>] (qh_completions+0xc8/0x49c) [127100.292266] [<804bb240>] (qh_completions+0xc8/0x49c) from [<804bdcd0>] (scan_async+0x88/0x154) [127100.292297] [<804bdcd0>] (scan_async+0x88/0x154) from [<804be138>] (ehci_work+0x40/0x98) [127100.292358] [<804be138>] (ehci_work+0x40/0x98) from [<804bf9c4>] (ehci_irq+0x33c/0x3a4) [127100.292419] [<804bf9c4>] (ehci_irq+0x33c/0x3a4) from [<804a53ac>] (usb_hcd_irq+0x40/0x50) [127100.292480] [<804a53ac>] (usb_hcd_irq+0x40/0x50) from [<800bf45c>] (handle_irq_event_percpu+0xc4/0x298) [127100.292541] [<800bf45c>] (handle_irq_event_percpu+0xc4/0x298) from [<800bf67c>] (handle_irq_event+0x4c/0x6c) [127100.292572] [<800bf67c>] (handle_irq_event+0x4c/0x6c) from [<800c23b4>] (handle_fasteoi_irq+0xd8/0x124) [127100.292633] [<800c23b4>] (handle_fasteoi_irq+0xd8/0x124) from [<800bedd0>] (generic_handle_irq+0x30/0x40) [127100.292724] [<800bedd0>] (generic_handle_irq+0x30/0x40) from [<800140c4>] (handle_IRQ+0x88/0xc8) [127100.292755] [<800140c4>] (handle_IRQ+0x88/0xc8) from [<800086d8>] (gic_handle_irq+0x80/0xac) [127100.292816] [<800086d8>] (gic_handle_irq+0x80/0xac) from [<806a91c0>] (__irq_svc+0x40/0x70) [127100.292846] Exception stack(0x80a47bf8 to 0x80a47c40) [127100.292877] 7be0: 0000000d 00002180 [127100.292938] 7c00: 0000000d 00000005 8bb55040 8236d180 00f7a819 81e00d5a 00000068 80c5ee80 [127100.292968] 7c20: 00000002 80a47c5c 80a47c40 80a47c40 805c734c 805c9a70 80070113 ffffffff [127100.293029] [<806a91c0>] (__irq_svc+0x40/0x70) from [<805c9a70>] (tcp_event_data_recv+0x118/0x194) [127100.293090] [<805c9a70>] (tcp_event_data_recv+0x118/0x194) from [<805cc554>] (tcp_data_queue+0x30c/0x998) [127100.293151] [<805cc554>] (tcp_data_queue+0x30c/0x998) from [<805cfa30>] (tcp_rcv_established+0x668/0x73c) [127100.293212] [<805cfa30>] (tcp_rcv_established+0x668/0x73c) from [<805d684c>] (tcp_v4_do_rcv+0x90/0x220) [127100.293273] [<805d684c>] (tcp_v4_do_rcv+0x90/0x220) from [<805d8bac>] (tcp_v4_rcv+0x550/0x928) [127100.293334] [<805d8bac>] (tcp_v4_rcv+0x550/0x928) from [<805b68e0>] (ip_local_deliver_finish+0x1b0/0x370) [127100.293365] [<805b68e0>] (ip_local_deliver_finish+0x1b0/0x370) from [<805b6c30>] (ip_local_deliver+0x98/0xa8) [127100.293426] [<805b6c30>] (ip_local_deliver+0x98/0xa8) from [<805b670c>] (ip_rcv_finish+0x4b8/0x4dc) [127100.293487] [<805b670c>] (ip_rcv_finish+0x4b8/0x4dc) from [<805b6fd4>] (ip_rcv+0x394/0x414) [127100.293548] [<805b6fd4>] (ip_rcv+0x394/0x414) from [<805832e0>] (__netif_receive_skb+0x4dc/0x550) [127100.293609] [<805832e0>] (__netif_receive_skb+0x4dc/0x550) from [<805833ec>] (process_backlog+0x98/0x168) [127100.293640] [<805833ec>] (process_backlog+0x98/0x168) from [<80586674>] (net_rx_action+0xc8/0x31c) [127100.293701] [<80586674>] (net_rx_action+0xc8/0x31c) from [<8004d28c>] (__do_softirq+0x140/0x27c) [127100.293762] [<8004d28c>] (__do_softirq+0x140/0x27c) from [<8004d864>] (irq_exit+0x58/0xac) [127100.293823] [<8004d864>] (irq_exit+0x58/0xac) from [<800140c8>] (handle_IRQ+0x8c/0xc8) [127100.293884] [<800140c8>] (handle_IRQ+0x8c/0xc8) from [<800086d8>] (gic_handle_irq+0x80/0xac) [127100.293914] [<800086d8>] (gic_handle_irq+0x80/0xac) from [<806a91c0>] (__irq_svc+0x40/0x70) [127100.293945] Exception stack(0x80a47f38 to 0x80a47f80) [127100.293975] 7f20: 00000003 00000000 [127100.294036] 7f40: 00000000 8002ce7c 80a46000 80a4e3e0 806b3f50 80a4e290 80ab8988 412fc09a [127100.294067] 7f60: 00000000 80a47f8c 80a47f90 80a47f80 8002b340 8002cea4 60070113 ffffffff [127100.294128] [<806a91c0>] (__irq_svc+0x40/0x70) from [<8002cea4>] (omap_default_idle+0x28/0x2c) [127100.294189] [<8002cea4>] (omap_default_idle+0x28/0x2c) from [<80014630>] (cpu_idle+0x9c/0x104) [127100.294250] [<80014630>] (cpu_idle+0x9c/0x104) from [<8067d648>] (rest_init+0x8c/0xa4) [127100.294311] [<8067d648>] (rest_init+0x8c/0xa4) from [<809d98a8>] (start_kernel+0x2b8/0x314) [127100.294342] Mem-info: [127100.294342] Normal per-cpu: [127100.294372] CPU 0: hi: 186, btch: 31 usd: 181 [127100.294403] CPU 1: hi: 186, btch: 31 usd: 54 [127100.294464] active_anon:21239 inactive_anon:6225 isolated_anon:0 [127100.294464] active_file:52057 inactive_file:111715 isolated_file:0 [127100.294494] unevictable:0 dirty:180 writeback:0 unstable:0 [127100.294494] free:38073 slab_reclaimable:6423 slab_unreclaimable:4265 [127100.294525] mapped:5616 shmem:4706 pagetables:393 bounce:0 [127100.294586] Normal free:152292kB min:8192kB low:10240kB high:12288kB active_anon:84956kB inactive_anon:24900kB active_file:208228kB inactive_file:446860kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:1039360kB mlocked:0kB dirty:720kB writeback:0kB mapped:22464kB shmem:18824kB slab_reclaimable:25692kB slab_unreclaimable:17060kB kernel_stack:1056kB pagetables:1572kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no [127100.294677] lowmem_reserve[]: 0 0 0 [127100.294738] Normal: 4855*4kB 4831*8kB 4221*16kB 710*32kB 61*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 152228kB [127100.294860] 168490 total pagecache pages [127100.294860] 0 pages in swap cache [127100.294891] Swap cache stats: add 0, delete 0, find 0/0 [127100.294921] Free swap = 1847468kB [127100.294921] Total swap = 1847468kB [127100.336883] 262144 pages of RAM [127100.336883] 38638 free pages [127100.336914] 18477 reserved pages [127100.336944] 10718 slab pages [127100.336944] 158595 pages shared [127100.336975] 0 pages swap cached <snip> [127100.664459] smsc95xx 1-1.1:1.0: eth0: kevent 2 may have been dropped [127100.672088] swapper/0: page allocation failure: order:3, mode:0x20 [127100.672149] [<8001b8d0>] (unwind_backtrace+0x0/0xec) from [<806905d0>] (dump_stack+0x20/0x24) [127100.672210] [<806905d0>] (dump_stack+0x20/0x24) from [<800fe390>] (warn_alloc_failed+0xfc/0x11c) [127100.672210] [<800fe390>] (warn_alloc_failed+0xfc/0x11c) from [<80100f14>] (__alloc_pages_nodemask+0x678/0x7a4) [127100.672363] [<80100f14>] (__alloc_pages_nodemask+0x678/0x7a4) from [<80695270>] (kmem_getpages.isra.35+0x3c/0xc0) [127100.672393] [<80695270>] (kmem_getpages.isra.35+0x3c/0xc0) from [<80695380>] (cache_grow.constprop.37+0x8c/0x1fc) [127100.672485] [<80695380>] (cache_grow.constprop.37+0x8c/0x1fc) from [<8069570c>] (cache_alloc_refill+0x21c/0x274) [127100.672485] [<8069570c>] (cache_alloc_refill+0x21c/0x274) from [<80132dac>] (__kmalloc_track_caller+0xac/0x1b0) [127100.672576] [<80132dac>] (__kmalloc_track_caller+0xac/0x1b0) from [<8057a37c>] (__alloc_skb+0x60/0xfc) [127100.672637] [<8057a37c>] (__alloc_skb+0x60/0xfc) from [<8057a874>] (__netdev_alloc_skb+0x2c/0x54) [127100.672698] [<8057a874>] (__netdev_alloc_skb+0x2c/0x54) from [<8049dbb8>] (rx_submit+0x2c/0x1d4) [127100.672821] [<8049dbb8>] (rx_submit+0x2c/0x1d4) from [<8049e89c>] (usbnet_bh+0x1b8/0x258) [127100.672821] [<8049e89c>] (usbnet_bh+0x1b8/0x258) from [<8004cbc4>] (tasklet_action+0xb0/0x1ac) [127100.672821] [<8004cbc4>] (tasklet_action+0xb0/0x1ac) from [<8004d28c>] (__do_softirq+0x140/0x27c) [127100.672973] [<8004d28c>] (__do_softirq+0x140/0x27c) from [<8004d864>] (irq_exit+0x58/0xac) [127100.673034] [<8004d864>] (irq_exit+0x58/0xac) from [<800140c8>] (handle_IRQ+0x8c/0xc8) [127100.673095] [<800140c8>] (handle_IRQ+0x8c/0xc8) from [<800086d8>] (gic_handle_irq+0x80/0xac) [127100.673156] [<800086d8>] (gic_handle_irq+0x80/0xac) from [<806a91c0>] (__irq_svc+0x40/0x70) [127100.673187] Exception stack(0x80a47f38 to 0x80a47f80) [127100.673187] 7f20: 00000003 00000000 [127100.673248] 7f40: 00000000 8002ce7c 80a46000 80a4e3e0 806b3f50 80a4e290 80ab8988 412fc09a [127100.673278] 7f60: 00000000 80a47f8c 80a47f90 80a47f80 8002b340 8002cea4 60070113 ffffffff [127100.673278] [<806a91c0>] (__irq_svc+0x40/0x70) from [<8002cea4>] (omap_default_idle+0x28/0x2c) [127100.673431] [<8002cea4>] (omap_default_idle+0x28/0x2c) from [<80014630>] (cpu_idle+0x9c/0x104) [127100.673492] [<80014630>] (cpu_idle+0x9c/0x104) from [<8067d648>] (rest_init+0x8c/0xa4) [127100.673553] [<8067d648>] (rest_init+0x8c/0xa4) from [<809d98a8>] (start_kernel+0x2b8/0x314) [127100.673553] Mem-info: [127100.673614] Normal per-cpu: [127100.673614] CPU 0: hi: 186, btch: 31 usd: 181 [127100.673614] CPU 1: hi: 186, btch: 31 usd: 45 [127100.673675] active_anon:21307 inactive_anon:6225 isolated_anon:0 [127100.673736] active_file:52057 inactive_file:111732 isolated_file:0 [127100.673736] unevictable:0 dirty:205 writeback:0 unstable:0 [127100.673767] free:37608 slab_reclaimable:6423 slab_unreclaimable:4639 [127100.673767] mapped:5616 shmem:4706 pagetables:393 bounce:0 [127100.673828] Normal free:150432kB min:8192kB low:10240kB high:12288kB active_anon:85228kB inactive_anon:24900kB active_file:208228kB inactive_file:446928kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:1039360kB mlocked:0kB dirty:820kB writeback:0kB mapped:22464kB shmem:18824kB slab_reclaimable:25692kB slab_unreclaimable:18556kB kernel_stack:1056kB pagetables:1572kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no [127100.673889] lowmem_reserve[]: 0 0 0 [127100.673889] Normal: 4670*4kB 4691*8kB 4221*16kB 710*32kB 61*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 150368kB [127100.674102] 168515 total pagecache pages [127100.674133] 0 pages in swap cache [127100.674163] Swap cache stats: add 0, delete 0, find 0/0 [127100.674163] Free swap = 1847468kB [127100.674163] Total swap = 1847468kB [127100.716339] 262144 pages of RAM [127100.716369] 38162 free pages [127100.716369] 18477 reserved pages [127100.716400] 11086 slab pages [127100.716430] 158642 pages shared [127100.716430] 0 pages swap cached [127100.716674] smsc95xx 1-1.1:1.0: eth0: kevent 2 may have been dropped [127100.724212] swapper/0: page allocation failure: order:3, mode:0x20 [127100.724304] [<8001b8d0>] (unwind_backtrace+0x0/0xec) from [<806905d0>] (dump_stack+0x20/0x24) [127100.724395] [<806905d0>] (dump_stack+0x20/0x24) from [<800fe390>] (warn_alloc_failed+0xfc/0x11c) [127100.724395] [<800fe390>] (warn_alloc_failed+0xfc/0x11c) from [<80100f14>] (__alloc_pages_nodemask+0x678/0x7a4) [127100.724395] [<80100f14>] (__alloc_pages_nodemask+0x678/0x7a4) from [<80695270>] (kmem_getpages.isra.35+0x3c/0xc0) [127100.724395] [<80695270>] (kmem_getpages.isra.35+0x3c/0xc0) from [<80695380>] (cache_grow.constprop.37+0x8c/0x1fc) [127100.724395] [<80695380>] (cache_grow.constprop.37+0x8c/0x1fc) from [<8069570c>] (cache_alloc_refill+0x21c/0x274) [127100.724395] [<8069570c>] (cache_alloc_refill+0x21c/0x274) from [<80132dac>] (__kmalloc_track_caller+0xac/0x1b0) [127100.724395] [<80132dac>] (__kmalloc_track_caller+0xac/0x1b0) from [<8057a37c>] (__alloc_skb+0x60/0xfc) [127100.724761] [<8057a37c>] (__alloc_skb+0x60/0xfc) from [<8057a874>] (__netdev_alloc_skb+0x2c/0x54) [127100.724822] [<8057a874>] (__netdev_alloc_skb+0x2c/0x54) from [<8049dbb8>] (rx_submit+0x2c/0x1d4) [127100.724822] [<8049dbb8>] (rx_submit+0x2c/0x1d4) from [<8049e89c>] (usbnet_bh+0x1b8/0x258) [127100.724822] [<8049e89c>] (usbnet_bh+0x1b8/0x258) from [<8004cbc4>] (tasklet_action+0xb0/0x1ac) [127100.724822] [<8004cbc4>] (tasklet_action+0xb0/0x1ac) from [<8004d28c>] (__do_softirq+0x140/0x27c) [127100.724822] [<8004d28c>] (__do_softirq+0x140/0x27c) from [<8004d864>] (irq_exit+0x58/0xac) [127100.724822] [<8004d864>] (irq_exit+0x58/0xac) from [<800140c8>] (handle_IRQ+0x8c/0xc8) [127100.725219] [<800140c8>] (handle_IRQ+0x8c/0xc8) from [<800086d8>] (gic_handle_irq+0x80/0xac) [127100.725280] [<800086d8>] (gic_handle_irq+0x80/0xac) from [<806a91c0>] (__irq_svc+0x40/0x70) [127100.725280] Exception stack(0x80a47f38 to 0x80a47f80) [127100.725341] 7f20: 00000003 00000000 [127100.725402] 7f40: 00000000 8002ce7c 80a46000 80a4e3e0 806b3f50 80a4e290 80ab8988 412fc09a [127100.725433] 7f60: 00000000 80a47f8c 80a47f90 80a47f80 8002b340 8002cea4 60070113 ffffffff [127100.725433] [<806a91c0>] (__irq_svc+0x40/0x70) from [<8002cea4>] (omap_default_idle+0x28/0x2c) [127100.725555] [<8002cea4>] (omap_default_idle+0x28/0x2c) from [<80014630>] (cpu_idle+0x9c/0x104) [127100.725616] [<80014630>] (cpu_idle+0x9c/0x104) from [<8067d648>] (rest_init+0x8c/0xa4) [127100.725677] [<8067d648>] (rest_init+0x8c/0xa4) from [<809d98a8>] (start_kernel+0x2b8/0x314) [127100.725677] Mem-info: [127100.725677] Normal per-cpu: [127100.725738] CPU 0: hi: 186, btch: 31 usd: 181 [127100.725769] CPU 1: hi: 186, btch: 31 usd: 72 [127100.725830] active_anon:21307 inactive_anon:6225 isolated_anon:0 [127100.725860] active_file:52057 inactive_file:111732 isolated_file:0 [127100.725860] unevictable:0 dirty:205 writeback:0 unstable:0 [127100.725860] free:37577 slab_reclaimable:6423 slab_unreclaimable:4639 [127100.725891] mapped:5616 shmem:4706 pagetables:393 bounce:0 [127100.725982] Normal free:150308kB min:8192kB low:10240kB high:12288kB active_anon:85228kB inactive_anon:24900kB active_file:208228kB inactive_file:446928kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:1039360kB mlocked:0kB dirty:820kB writeback:0kB mapped:22464kB shmem:18824kB slab_reclaimable:25692kB slab_unreclaimable:18556kB kernel_stack:1056kB pagetables:1572kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no [127100.726043] lowmem_reserve[]: 0 0 0 [127100.726104] Normal: 4639*4kB 4691*8kB 4221*16kB 710*32kB 61*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 150244kB [127100.726226] 168515 total pagecache pages [127100.726226] 0 pages in swap cache [127100.726257] Swap cache stats: add 0, delete 0, find 0/0 [127100.726287] Free swap = 1847468kB [127100.726318] Total swap = 1847468kB [127100.767608] 262144 pages of RAM [127100.767639] 38160 free pages [127100.767669] 18477 reserved pages [127100.767669] 11086 slab pages [127100.767700] 158646 pages shared [127100.767700] 0 pages swap cached [127100.767944] smsc95xx 1-1.1:1.0: eth0: kevent 2 may have been dropped [127100.775512] smsc95xx 1-1.1:1.0: eth0: kevent 2 may have been dropped [127100.783050] smsc95xx 1-1.1:1.0: eth0: kevent 2 may have been dropped [127100.790588] smsc95xx 1-1.1:1.0: eth0: kevent 2 may have been dropped [127100.798065] smsc95xx 1-1.1:1.0: eth0: kevent 2 may have been dropped [127100.805541] smsc95xx 1-1.1:1.0: eth0: kevent 2 may have been dropped -- Regards, Tom "Where's the kaboom!? There was supposed to be an earth-shattering kaboom!" Marvin Martian Linaro.org │ Open source software for ARM SoCs h) tom.gall att linaro.org w) tom_gall att vnet.ibm.com h) tom_gall att mac.com

13 years, 4 months

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