August 2023 - Linux-stable-mirror

Please apply the following rcu-tasks fixes to 5.10 and 5.15 stable kernels

by Joel Fernandes

Hi Greg, Stable team, Please apply the following rcu-tasks fixes to 5.10 and 5.15 stable kernel. They cleanly apply and are required to fix a warning [1] that shows up during rcutorture testing and are all bug fixes merged into Linus tree. I have verified them on the latest 5.10 and 5.15 stable kernels. commit 46aa886c483f57ef13cd5ea0a85e70b93eb1d381 rcu-tasks: Fix IPI failure handling in trc_wait_for_one_reader commit cbe0d8d91415c9692fe88191940d98952b6855d9 rcu-tasks: Wait for trc_read_check_handler() IPIs commit 18f08e758f34e6dfe0668bee51bd2af7adacf381 rcu-tasks: Add trc_inspect_reader() checks for exiting critical section thanks, - Joel [1] Snippet of dmesg showing warning: [ 2701.802174] WARNING: CPU: 0 PID: 11 at kernel/rcu/tasks.h:978 rcu_tasks_trace_pregp_step+0x46/0x50 [ 2701.820952] Modules linked in: [ 2701.827014] CPU: 0 PID: 11 Comm: rcu_tasks_trace Not tainted 5.10.193-rc1+ #531 [ 2701.858299] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 [ 2701.876050] RIP: 0010:rcu_tasks_trace_pregp_step+0x46/0x50 [ 2701.907104] Code: 48 8b 04 c5 e0 56 c1 b3 80 3c 18 00 75 1c 48 c7 c6 10 37 07 b4 e8 7a fb 38 00 3b 05 a8 bc 99 01 89 c7 72 d9 5b e9 ea 56 f9 ff <0f> 0b eb e0 66 0f 1f 44 00 00 55 53 48 89 fb 48 89 77 08 48 c7 07 [ 2701.967363] RSP: 0018:ffffbd5540063e40 EFLAGS: 00010202 [ 2701.977403] RAX: ffffa426df580000 RBX: 000000000001fa40 RCX: 0000000000000000 [ 2702.007399] RDX: 000000000000000f RSI: 0000000000000000 RDI: 0000000000000003 [ 2702.070872] RBP: ffffbd5540063e60 R08: 0000000000000000 R09: ffffffffb4073710 [ 2702.104722] R10: 0000000000000001 R11: 0000000000000001 R12: ffffa426c1069e60 [ 2702.136555] R13: ffffffffb3f32ae0 R14: ffffffffb3f32af0 R15: ffffa426c1178dc0 [ 2702.183571] FS: 0000000000000000(0000) GS:ffffa426df400000(0000) knlGS:0000000000000000 [ 2702.239210] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2702.326861] CR2: 0000000000402000 CR3: 00000000020e0000 CR4: 00000000000006f0 [ 2702.353000] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 2702.363008] smpboot: CPU 3 is now offline [ 2702.386004] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 2702.386007] Call Trace: [ 2702.386580] ? __warn+0x7c/0x100 [ 2702.386588] ? rcu_tasks_trace_pregp_step+0x46/0x50 [ 2702.386725] ? report_bug+0x99/0xc0 [ 2702.386916] ? handle_bug+0x41/0x80 [ 2702.387021] ? exc_invalid_op+0x13/0x60 [ 2702.387048] ? asm_exc_invalid_op+0x12/0x20 [ 2702.387054] ? rcu_tasks_trace_pregp_step+0x46/0x50 [ 2702.387057] rcu_tasks_wait_gp+0x4b/0x260 [ 2702.387059] ? schedule_timeout+0x9a/0x150 [ 2702.387062] rcu_tasks_kthread+0xf4/0x1d0 [ 2702.387065] ? wait_woken+0x80/0x80 [ 2702.387067] ? rcu_barrier_tasks_trace+0xa0/0xa0 [ 2702.387071] kthread+0x137/0x160 [ 2702.387140] ? __kthread_bind_mask+0x60/0x60 [ 2702.387158] ret_from_fork+0x22/0x30

1 year, 3 months

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6.1.50 misbackport ?

by Joakim Tjernlund

https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=… has: - tb_switch_tmu_rate_write(sw, TB_SWITCH_TMU_RATE_OFF); + ret = tb_switch_tmu_rate_write(sw, TB_SWITCH_TMU_RATE_OFF); + return ret; feels like an if stmt is missing here ? Jocke

1 year, 3 months

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[STABLE] lockdep patch for 6.1-stable to 6.5-stable

by Helge Deller

Hi Greg, would you please queue up this upstream patch: 0a6b58c5cd0d ("lockdep: fix static memory detection even more") to stable kernels 6.1, 6.4 and 6.5 ? Thanks, Helge From 0a6b58c5cd0dfd7961e725212f0fc8dfc5d96195 Mon Sep 17 00:00:00 2001 From: Helge Deller <deller(a)gmx.de> Date: Tue, 15 Aug 2023 00:31:09 +0200 Subject: [PATCH] lockdep: fix static memory detection even more On the parisc architecture, lockdep reports for all static objects which are in the __initdata section (e.g. "setup_done" in devtmpfs, "kthreadd_done" in init/main.c) this warning: INFO: trying to register non-static key. The warning itself is wrong, because those objects are in the __initdata section, but the section itself is on parisc outside of range from _stext to _end, which is why the static_obj() functions returns a wrong answer. While fixing this issue, I noticed that the whole existing check can be simplified a lot. Instead of checking against the _stext and _end symbols (which include code areas too) just check for the .data and .bss segments (since we check a data object). This can be done with the existing is_kernel_core_data() macro. In addition objects in the __initdata section can be checked with init_section_contains(), and is_kernel_rodata() allows keys to be in the _ro_after_init section. This partly reverts and simplifies commit bac59d18c701 ("x86/setup: Fix static memory detection"). Link: https://lkml.kernel.org/r/ZNqrLRaOi/3wPAdp@p100 Fixes: bac59d18c701 ("x86/setup: Fix static memory detection") Signed-off-by: Helge Deller <deller(a)gmx.de> Cc: Borislav Petkov <bp(a)suse.de> Cc: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Cc: Guenter Roeck <linux(a)roeck-us.net> Cc: Peter Zijlstra <peterz(a)infradead.org> Cc: "Rafael J. Wysocki" <rafael(a)kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> diff --git a/arch/x86/include/asm/sections.h b/arch/x86/include/asm/sections.h index a6e8373a5170..3fa87e5e11ab 100644 --- a/arch/x86/include/asm/sections.h +++ b/arch/x86/include/asm/sections.h @@ -2,8 +2,6 @@ #ifndef _ASM_X86_SECTIONS_H #define _ASM_X86_SECTIONS_H -#define arch_is_kernel_initmem_freed arch_is_kernel_initmem_freed - #include <asm-generic/sections.h> #include <asm/extable.h> @@ -18,20 +16,4 @@ extern char __end_of_kernel_reserve[]; extern unsigned long _brk_start, _brk_end; -static inline bool arch_is_kernel_initmem_freed(unsigned long addr) -{ - /* - * If _brk_start has not been cleared, brk allocation is incomplete, - * and we can not make assumptions about its use. - */ - if (_brk_start) - return 0; - - /* - * After brk allocation is complete, space between _brk_end and _end - * is available for allocation. - */ - return addr >= _brk_end && addr < (unsigned long)&_end; -} - #endif /* _ASM_X86_SECTIONS_H */ diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c index 111607d91489..e85b5ad3e206 100644 --- a/kernel/locking/lockdep.c +++ b/kernel/locking/lockdep.c @@ -819,34 +819,26 @@ static int very_verbose(struct lock_class *class) * Is this the address of a static object: */ #ifdef __KERNEL__ -/* - * Check if an address is part of freed initmem. After initmem is freed, - * memory can be allocated from it, and such allocations would then have - * addresses within the range [_stext, _end]. - */ -#ifndef arch_is_kernel_initmem_freed -static int arch_is_kernel_initmem_freed(unsigned long addr) -{ - if (system_state < SYSTEM_FREEING_INITMEM) - return 0; - - return init_section_contains((void *)addr, 1); -} -#endif - static int static_obj(const void *obj) { - unsigned long start = (unsigned long) &_stext, - end = (unsigned long) &_end, - addr = (unsigned long) obj; + unsigned long addr = (unsigned long) obj; - if (arch_is_kernel_initmem_freed(addr)) - return 0; + if (is_kernel_core_data(addr)) + return 1; + + /* + * keys are allowed in the __ro_after_init section. + */ + if (is_kernel_rodata(addr)) + return 1; /* - * static variable? + * in initdata section and used during bootup only? + * NOTE: On some platforms the initdata section is + * outside of the _stext ... _end range. */ - if ((addr >= start) && (addr < end)) + if (system_state < SYSTEM_FREEING_INITMEM && + init_section_contains((void *)addr, 1)) return 1; /*

1 year, 3 months

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[PATCH 5.10] rcu: Prevent expedited GP from enabling tick on offline CPU

by Joel Fernandes (Google)

From: "Paul E. McKenney" <paulmck(a)kernel.org> [ Upstream commit 147f04b14adde831eb4a0a1e378667429732f9e8 ] If an RCU expedited grace period starts just when a CPU is in the process of going offline, so that the outgoing CPU has completed its pass through stop-machine but has not yet completed its final dive into the idle loop, RCU will attempt to enable that CPU's scheduling-clock tick via a call to tick_dep_set_cpu(). For this to happen, that CPU has to have been online when the expedited grace period completed its CPU-selection phase. This is pointless: The outgoing CPU has interrupts disabled, so it cannot take a scheduling-clock tick anyway. In addition, the tick_dep_set_cpu() function's eventual call to irq_work_queue_on() will splat as follows: smpboot: CPU 1 is now offline WARNING: CPU: 6 PID: 124 at kernel/irq_work.c:95 +irq_work_queue_on+0x57/0x60 Modules linked in: CPU: 6 PID: 124 Comm: kworker/6:2 Not tainted 5.15.0-rc1+ #3 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS +rel-1.14.0-0-g155821a-rebuilt.opensuse.org 04/01/2014 Workqueue: rcu_gp wait_rcu_exp_gp RIP: 0010:irq_work_queue_on+0x57/0x60 Code: 8b 05 1d c7 ea 62 a9 00 00 f0 00 75 21 4c 89 ce 44 89 c7 e8 +9b 37 fa ff ba 01 00 00 00 89 d0 c3 4c 89 cf e8 3b ff ff ff eb ee <0f> 0b eb b7 +0f 0b eb db 90 48 c7 c0 98 2a 02 00 65 48 03 05 91 6f RSP: 0000:ffffb12cc038fe48 EFLAGS: 00010282 RAX: 0000000000000001 RBX: 0000000000005208 RCX: 0000000000000020 RDX: 0000000000000001 RSI: 0000000000000001 RDI: ffff9ad01f45a680 RBP: 000000000004c990 R08: 0000000000000001 R09: ffff9ad01f45a680 R10: ffffb12cc0317db0 R11: 0000000000000001 R12: 00000000fffecee8 R13: 0000000000000001 R14: 0000000000026980 R15: ffffffff9e53ae00 FS: 0000000000000000(0000) GS:ffff9ad01f580000(0000) +knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000000de0c000 CR4: 00000000000006e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: tick_nohz_dep_set_cpu+0x59/0x70 rcu_exp_wait_wake+0x54e/0x870 ? sync_rcu_exp_select_cpus+0x1fc/0x390 process_one_work+0x1ef/0x3c0 ? process_one_work+0x3c0/0x3c0 worker_thread+0x28/0x3c0 ? process_one_work+0x3c0/0x3c0 kthread+0x115/0x140 ? set_kthread_struct+0x40/0x40 ret_from_fork+0x22/0x30 ---[ end trace c5bf75eb6aa80bc6 ]--- This commit therefore avoids invoking tick_dep_set_cpu() on offlined CPUs to limit both futility and false-positive splats. Signed-off-by: Paul E. McKenney <paulmck(a)kernel.org> Signed-off-by: Joel Fernandes (Google) <joel(a)joelfernandes.org> --- kernel/rcu/tree_exp.h | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/kernel/rcu/tree_exp.h b/kernel/rcu/tree_exp.h index 401c1f331caf..07a284a18645 100644 --- a/kernel/rcu/tree_exp.h +++ b/kernel/rcu/tree_exp.h @@ -507,7 +507,10 @@ static void synchronize_rcu_expedited_wait(void) if (rdp->rcu_forced_tick_exp) continue; rdp->rcu_forced_tick_exp = true; - tick_dep_set_cpu(cpu, TICK_DEP_BIT_RCU_EXP); + preempt_disable(); + if (cpu_online(cpu)) + tick_dep_set_cpu(cpu, TICK_DEP_BIT_RCU_EXP); + preempt_enable(); } } j = READ_ONCE(jiffies_till_first_fqs); -- 2.42.0.rc2.253.gd59a3bf2b4-goog

1 year, 3 months

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[6.5] please apply f5f80e32de12

by Jakub Kicinski

Hi! Is the queue for 6.5 open already? :) Please apply commit f5f80e32de12 ("ipv6: remove hard coded limitation on ipv6_pinfo") to 6.5, it mistakenly went via -next. It's in Linus's tree now. Discussions: https://lore.kernel.org/all/CABq1_viq9yMo9wZ2XkLg_45FaOcwL93qVhqFUZ9wTygKag… https://lore.kernel.org/netdev/CANn89iLTn6vv9=PvAUccpRNNw6CKcXktixusDpqxqvo… Fixes: fe79bd65c819 ("net/tcp: refactor tcp_inet6_sk()")

1 year, 3 months

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stable-rc/linux-5.4.y build: 14 builds: 0 failed, 14 passed, 22 warnings (v5.4.255)

by kernelci.org bot

stable-rc/linux-5.4.y build: 14 builds: 0 failed, 14 passed, 22 warnings (v5.4.255) Full Build Summary: https://kernelci.org/build/stable-rc/branch/linux-5.4.y/kernel/v5.4.255/ Tree: stable-rc Branch: linux-5.4.y Git Describe: v5.4.255 Git Commit: 5eb967dd50a5a29952ab6e6b1ef4bf216cf1652c Git URL: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git Built: 6 unique architectures Warnings Detected: arc: arm: i386: allnoconfig (gcc-10): 2 warnings i386_defconfig (gcc-10): 2 warnings tinyconfig (gcc-10): 2 warnings mips: riscv: x86_64: allnoconfig (gcc-10): 4 warnings tinyconfig (gcc-10): 4 warnings x86_64_defconfig (gcc-10): 4 warnings x86_64_defconfig+x86-chromebook (gcc-10): 4 warnings Warnings summary: 7 ld: warning: creating DT_TEXTREL in a PIE 4 ld: arch/x86/boot/compressed/head_64.o: warning: relocation in read-only section `.head.text' 3 ld: arch/x86/boot/compressed/head_32.o: warning: relocation in read-only section `.head.text' 2 arch/x86/entry/entry_64.o: warning: objtool: If this is a retpoline, please patch it in with alternatives and annotate it with ANNOTATE_NOSPEC_ALTERNATIVE. 2 arch/x86/entry/entry_64.o: warning: objtool: .entry.text+0x1c1: unsupported intra-function call 2 arch/x86/entry/entry_64.o: warning: objtool: .entry.text+0x151: unsupported intra-function call 2 arch/x86/entry/entry_64.S:1756: Warning: no instruction mnemonic suffix given and no register operands; using default for `sysret' Section mismatches summary: 1 WARNING: vmlinux.o(___ksymtab_gpl+vic_init_cascaded+0x0): Section mismatch in reference from the variable __ksymtab_vic_init_cascaded to the function .init.text:vic_init_cascaded() ================================================================================ Detailed per-defconfig build reports: -------------------------------------------------------------------------------- 32r2el_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- allnoconfig (x86_64, gcc-10) — PASS, 0 errors, 4 warnings, 0 section mismatches Warnings: arch/x86/entry/entry_64.S:1756: Warning: no instruction mnemonic suffix given and no register operands; using default for `sysret' arch/x86/entry/entry_64.o: warning: objtool: .entry.text+0x151: unsupported intra-function call ld: arch/x86/boot/compressed/head_64.o: warning: relocation in read-only section `.head.text' ld: warning: creating DT_TEXTREL in a PIE -------------------------------------------------------------------------------- allnoconfig (i386, gcc-10) — PASS, 0 errors, 2 warnings, 0 section mismatches Warnings: ld: arch/x86/boot/compressed/head_32.o: warning: relocation in read-only section `.head.text' ld: warning: creating DT_TEXTREL in a PIE -------------------------------------------------------------------------------- defconfig (riscv, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- haps_hs_smp_defconfig (arc, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- i386_defconfig (i386, gcc-10) — PASS, 0 errors, 2 warnings, 0 section mismatches Warnings: ld: arch/x86/boot/compressed/head_32.o: warning: relocation in read-only section `.head.text' ld: warning: creating DT_TEXTREL in a PIE -------------------------------------------------------------------------------- imx_v6_v7_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- multi_v5_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches Section mismatches: WARNING: vmlinux.o(___ksymtab_gpl+vic_init_cascaded+0x0): Section mismatch in reference from the variable __ksymtab_vic_init_cascaded to the function .init.text:vic_init_cascaded() -------------------------------------------------------------------------------- multi_v7_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tinyconfig (x86_64, gcc-10) — PASS, 0 errors, 4 warnings, 0 section mismatches Warnings: arch/x86/entry/entry_64.S:1756: Warning: no instruction mnemonic suffix given and no register operands; using default for `sysret' arch/x86/entry/entry_64.o: warning: objtool: .entry.text+0x151: unsupported intra-function call ld: arch/x86/boot/compressed/head_64.o: warning: relocation in read-only section `.head.text' ld: warning: creating DT_TEXTREL in a PIE -------------------------------------------------------------------------------- tinyconfig (i386, gcc-10) — PASS, 0 errors, 2 warnings, 0 section mismatches Warnings: ld: arch/x86/boot/compressed/head_32.o: warning: relocation in read-only section `.head.text' ld: warning: creating DT_TEXTREL in a PIE -------------------------------------------------------------------------------- vexpress_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- x86_64_defconfig (x86_64, gcc-10) — PASS, 0 errors, 4 warnings, 0 section mismatches Warnings: arch/x86/entry/entry_64.o: warning: objtool: .entry.text+0x1c1: unsupported intra-function call arch/x86/entry/entry_64.o: warning: objtool: If this is a retpoline, please patch it in with alternatives and annotate it with ANNOTATE_NOSPEC_ALTERNATIVE. ld: arch/x86/boot/compressed/head_64.o: warning: relocation in read-only section `.head.text' ld: warning: creating DT_TEXTREL in a PIE -------------------------------------------------------------------------------- x86_64_defconfig+x86-chromebook (x86_64, gcc-10) — PASS, 0 errors, 4 warnings, 0 section mismatches Warnings: arch/x86/entry/entry_64.o: warning: objtool: .entry.text+0x1c1: unsupported intra-function call arch/x86/entry/entry_64.o: warning: objtool: If this is a retpoline, please patch it in with alternatives and annotate it with ANNOTATE_NOSPEC_ALTERNATIVE. ld: arch/x86/boot/compressed/head_64.o: warning: relocation in read-only section `.head.text' ld: warning: creating DT_TEXTREL in a PIE --- For more info write to <info(a)kernelci.org>

1 year, 3 months

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stable-rc/linux-4.19.y build: 19 builds: 3 failed, 16 passed, 20 warnings (v4.19.293)

by kernelci.org bot

stable-rc/linux-4.19.y build: 19 builds: 3 failed, 16 passed, 20 warnings (v4.19.293) Full Build Summary: https://kernelci.org/build/stable-rc/branch/linux-4.19.y/kernel/v4.19.293/ Tree: stable-rc Branch: linux-4.19.y Git Describe: v4.19.293 Git Commit: c9852b4dedfce0212d9c06d0d43f04626c6938b1 Git URL: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git Built: 7 unique architectures Build Failures Detected: riscv: allnoconfig: (gcc-10) FAIL defconfig: (gcc-10) FAIL tinyconfig: (gcc-10) FAIL Warnings Detected: arc: arm64: defconfig (gcc-10): 3 warnings defconfig+arm64-chromebook (gcc-10): 3 warnings arm: i386: allnoconfig (gcc-10): 2 warnings i386_defconfig (gcc-10): 2 warnings tinyconfig (gcc-10): 2 warnings mips: riscv: x86_64: allnoconfig (gcc-10): 2 warnings tinyconfig (gcc-10): 2 warnings x86_64_defconfig (gcc-10): 2 warnings x86_64_defconfig+x86-chromebook (gcc-10): 2 warnings Warnings summary: 7 ld: warning: creating DT_TEXTREL in a PIE 6 aarch64-linux-gnu-ld: warning: -z norelro ignored 4 ld: arch/x86/boot/compressed/head_64.o: warning: relocation in read-only section `.head.text' 3 ld: arch/x86/boot/compressed/head_32.o: warning: relocation in read-only section `.head.text' Section mismatches summary: 3 WARNING: modpost: Found 1 section mismatch(es). ================================================================================ Detailed per-defconfig build reports: -------------------------------------------------------------------------------- 32r2el_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- allnoconfig (riscv, gcc-10) — FAIL, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- allnoconfig (i386, gcc-10) — PASS, 0 errors, 2 warnings, 0 section mismatches Warnings: ld: arch/x86/boot/compressed/head_32.o: warning: relocation in read-only section `.head.text' ld: warning: creating DT_TEXTREL in a PIE -------------------------------------------------------------------------------- allnoconfig (x86_64, gcc-10) — PASS, 0 errors, 2 warnings, 0 section mismatches Warnings: ld: arch/x86/boot/compressed/head_64.o: warning: relocation in read-only section `.head.text' ld: warning: creating DT_TEXTREL in a PIE -------------------------------------------------------------------------------- defconfig (riscv, gcc-10) — FAIL, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- defconfig (arm64, gcc-10) — PASS, 0 errors, 3 warnings, 0 section mismatches Warnings: aarch64-linux-gnu-ld: warning: -z norelro ignored aarch64-linux-gnu-ld: warning: -z norelro ignored aarch64-linux-gnu-ld: warning: -z norelro ignored Section mismatches: WARNING: modpost: Found 1 section mismatch(es). -------------------------------------------------------------------------------- defconfig+arm64-chromebook (arm64, gcc-10) — PASS, 0 errors, 3 warnings, 0 section mismatches Warnings: aarch64-linux-gnu-ld: warning: -z norelro ignored aarch64-linux-gnu-ld: warning: -z norelro ignored aarch64-linux-gnu-ld: warning: -z norelro ignored Section mismatches: WARNING: modpost: Found 1 section mismatch(es). -------------------------------------------------------------------------------- haps_hs_smp_defconfig (arc, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- i386_defconfig (i386, gcc-10) — PASS, 0 errors, 2 warnings, 0 section mismatches Warnings: ld: arch/x86/boot/compressed/head_32.o: warning: relocation in read-only section `.head.text' ld: warning: creating DT_TEXTREL in a PIE -------------------------------------------------------------------------------- imx_v6_v7_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- multi_v5_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches Section mismatches: WARNING: modpost: Found 1 section mismatch(es). -------------------------------------------------------------------------------- multi_v7_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- omap2plus_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tinyconfig (riscv, gcc-10) — FAIL, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tinyconfig (i386, gcc-10) — PASS, 0 errors, 2 warnings, 0 section mismatches Warnings: ld: arch/x86/boot/compressed/head_32.o: warning: relocation in read-only section `.head.text' ld: warning: creating DT_TEXTREL in a PIE -------------------------------------------------------------------------------- tinyconfig (x86_64, gcc-10) — PASS, 0 errors, 2 warnings, 0 section mismatches Warnings: ld: arch/x86/boot/compressed/head_64.o: warning: relocation in read-only section `.head.text' ld: warning: creating DT_TEXTREL in a PIE -------------------------------------------------------------------------------- vexpress_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- x86_64_defconfig (x86_64, gcc-10) — PASS, 0 errors, 2 warnings, 0 section mismatches Warnings: ld: arch/x86/boot/compressed/head_64.o: warning: relocation in read-only section `.head.text' ld: warning: creating DT_TEXTREL in a PIE -------------------------------------------------------------------------------- x86_64_defconfig+x86-chromebook (x86_64, gcc-10) — PASS, 0 errors, 2 warnings, 0 section mismatches Warnings: ld: arch/x86/boot/compressed/head_64.o: warning: relocation in read-only section `.head.text' ld: warning: creating DT_TEXTREL in a PIE --- For more info write to <info(a)kernelci.org>

1 year, 3 months

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stable-rc/linux-5.15.y build: 11 builds: 0 failed, 11 passed, 1 warning (v5.15.129)

by kernelci.org bot

stable-rc/linux-5.15.y build: 11 builds: 0 failed, 11 passed, 1 warning (v5.15.129) Full Build Summary: https://kernelci.org/build/stable-rc/branch/linux-5.15.y/kernel/v5.15.129/ Tree: stable-rc Branch: linux-5.15.y Git Describe: v5.15.129 Git Commit: 9e43368a3393dd40002cecb63e13af285be270fc Git URL: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git Built: 6 unique architectures Warnings Detected: arc: arm64: arm: i386: riscv: x86_64: x86_64_defconfig+x86-chromebook (gcc-10): 1 warning Warnings summary: 1 arch/x86/kernel/smp.o: warning: objtool: sysvec_reboot()+0x45: unreachable instruction ================================================================================ Detailed per-defconfig build reports: -------------------------------------------------------------------------------- allnoconfig (i386, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- defconfig (arm64, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- defconfig (riscv, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- haps_hs_smp_defconfig (arc, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- i386_defconfig (i386, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- imx_v6_v7_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- multi_v5_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- multi_v7_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- nommu_k210_defconfig (riscv, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tinyconfig (x86_64, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- x86_64_defconfig+x86-chromebook (x86_64, gcc-10) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: arch/x86/kernel/smp.o: warning: objtool: sysvec_reboot()+0x45: unreachable instruction --- For more info write to <info(a)kernelci.org>

1 year, 3 months

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Re: nouveau bug in linux/6.1.38-2

by Thorsten Leemhuis

Hi! On 02.08.23 23:28, Olaf Skibbe wrote: > Dear Maintainers, > > Hereby I would like to report an apparent bug in the nouveau driver in > linux/6.1.38-2. Thx for your report. Maybe your problem is caused by a incomplete backport. I Cced the maintainers for the drivers (and the regressions and the stable list), maybe one of them has an idea, as they know the driver. If they don't reply in the next few days, please check if the problem is also present in mainline. If not, check if the latest 6.1.y. release already fixes this. If not, try to check which of the four patches you reverted to make things going is actually causing this (e.g. first only revert the one that was applied last; then the two last ones; ...). > Running a current debian stable on a Dell Latitude E6510 with a > "NVIDIA Corporation GT218M" graphic card, the monitor turns black > after the grub screen. Also switching to a console (Strg-Alt-F2) shows > just a black screen. Access via ssh is possible. > > ~# uname -r > 6.1.0-10-amd64 > > demesg shows the following error message: > > [ 3.560153] WARNING: CPU: 0 PID: 176 at > drivers/gpu/drm/nouveau/nvkm/engine/disp/dp.c:460 > nvkm_dp_acquire+0x26a/0x490 [nouveau] > [ 3.560287] Modules linked in: sd_mod t10_pi sr_mod crc64_rocksoft > cdrom crc64 crc_t10dif crct10dif_generic nouveau(+) ahci libahci mxm_wmi > i2c_algo_bit drm_display_helper libata cec rc_core drm_ttm_helper ttm > scsi_mod e1000e drm_kms_helper ptp firewire_ohci sdhci_pci cqhci > ehci_pci sdhci ehci_hcd firewire_core i2c_i801 crct10dif_pclmul > crct10dif_common drm crc32_pclmul crc32c_intel psmouse usbcore mmc_core > crc_itu_t pps_core scsi_common i2c_smbus lpc_ich usb_common battery > video wmi button > [ 3.560322] CPU: 0 PID: 176 Comm: kworker/u16:5 Not tainted > 6.1.0-10-amd64 #1 Debian 6.1.38-2 > [ 3.560325] Hardware name: Dell Inc. Latitude E6510/0N5KHN, BIOS A17 > 05/12/2017 > [ 3.560327] Workqueue: nvkm-disp nv50_disp_super [nouveau] > [ 3.560433] RIP: 0010:nvkm_dp_acquire+0x26a/0x490 [nouveau] > [ 3.560538] Code: 48 8b 44 24 58 65 48 2b 04 25 28 00 00 00 0f 85 37 > 02 00 00 48 83 c4 60 44 89 e0 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc > cc <0f> 0b c1 e8 03 41 88 6d 62 44 89 fe 48 89 df 48 69 c0 cf 0d d6 26 > [ 3.560541] RSP: 0018:ffff9899c048bd60 EFLAGS: 00010246 > [ 3.560542] RAX: 0000000000041eb0 RBX: ffff88e0209d2600 RCX: > 0000000000041eb0 > [ 3.560544] RDX: ffffffffc079f760 RSI: 0000000000000000 RDI: > ffff9899c048bcf0 > [ 3.560545] RBP: 0000000000000001 R08: ffff9899c048bc64 R09: > 0000000000005b76 > [ 3.560546] R10: 000000000000000d R11: ffff9899c048bde0 R12: > 00000000ffffffea > [ 3.560548] R13: ffff88e00b39e480 R14: 0000000000044d45 R15: > 0000000000000000 > [ 3.560549] FS: 0000000000000000(0000) GS:ffff88e123c00000(0000) > knlGS:0000000000000000 > [ 3.560551] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > [ 3.560552] CR2: 00007f57f4e90451 CR3: 0000000181410000 CR4: > 00000000000006f0 > [ 3.560554] Call Trace: > [ 3.560558] <TASK> > [ 3.560560] ? __warn+0x7d/0xc0 > [ 3.560566] ? nvkm_dp_acquire+0x26a/0x490 [nouveau] > [ 3.560671] ? report_bug+0xe6/0x170 > [ 3.560675] ? handle_bug+0x41/0x70 > [ 3.560679] ? exc_invalid_op+0x13/0x60 > [ 3.560681] ? asm_exc_invalid_op+0x16/0x20 > [ 3.560685] ? init_reset_begun+0x20/0x20 [nouveau] > [ 3.560769] ? nvkm_dp_acquire+0x26a/0x490 [nouveau] > [ 3.560888] nv50_disp_super_2_2+0x70/0x430 [nouveau] > [ 3.560997] nv50_disp_super+0x113/0x210 [nouveau] > [ 3.561103] process_one_work+0x1c7/0x380 > [ 3.561109] worker_thread+0x4d/0x380 > [ 3.561113] ? rescuer_thread+0x3a0/0x3a0 > [ 3.561116] kthread+0xe9/0x110 > [ 3.561120] ? kthread_complete_and_exit+0x20/0x20 > [ 3.561122] ret_from_fork+0x22/0x30 > [ 3.561130] </TASK> > > Further information: > > $ lspci -v -s $(lspci | grep -i vga | awk '{ print $1 }') > 01:00.0 VGA compatible controller: NVIDIA Corporation GT218M [NVS 3100M] > (rev a2) (prog-if 00 [VGA controller]) > Subsystem: Dell Latitude E6510 > Flags: bus master, fast devsel, latency 0, IRQ 27 > Memory at e2000000 (32-bit, non-prefetchable) [size=16M] > Memory at d0000000 (64-bit, prefetchable) [size=256M] > Memory at e0000000 (64-bit, prefetchable) [size=32M] > I/O ports at 7000 [size=128] > Expansion ROM at 000c0000 [disabled] [size=128K] > Capabilities: <access denied> > Kernel driver in use: nouveau > Kernel modules: nouveau > > I reported this bug to debian already, see > https://bugs.debian.org/1042753 for context. > > With support (thanks Diederik!) I managed to figure out that the cause > was a regression between upstream kernel version 6.1.27 and 6.1.38. > > I build a new 6.1.38 kernel with these commits reverted: > > 62aecf23f3d1 drm/nouveau: add nv_encoder pointer check for NULL > fb725beca62d drm/nouveau/dp: check for NULL nv_connector->native_mode > 90748be0f4f3 drm/nouveau: don't detect DSM for non-NVIDIA device > 5a144bad3e75 nouveau: fix client work fence deletion race > > With that kernel the graphic works again. > > Please inform me if further tests are required. FWIW, to be sure the issue doesn't fall through the cracks unnoticed, I'm adding it to regzbot, the Linux kernel regression tracking bot: #regzbot ^introduced v6.1.27..v6.1.38 #regzbot title drm/nouveau: display stays black #regzbot ignore-activity This isn't a regression? This issue or a fix for it are already discussed somewhere else? It was fixed already? You want to clarify when the regression started to happen? Or point out I got the title or something else totally wrong? Then just reply and tell me -- ideally while also telling regzbot about it, as explained by the page listed in the footer of this mail. Developers: When fixing the issue, remember to add 'Link:' tags pointing to the report (the parent of this mail). See page linked in footer for details. Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat) -- Everything you wanna know about Linux kernel regression tracking: https://linux-regtracking.leemhuis.info/about/#tldr That page also explains what to do if mails like this annoy you.

1 year, 3 months

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6.1.30: thunderbolt: Clear registers properly when auto clear isn't in use cause call trace after resume

by beld zhang

Upgrade to 6.1.30, got crash message after resume, but looks still running normally After revert e16629c639d429e48c849808e59f1efcce886849 thunderbolt: Clear registers properly when auto clear isn't in use This error was gone. kernel config attached, system is Slackware 15.0 on XPS 9700 May 27 13:55:39 devel kernel: ------------[ cut here ]------------ May 27 13:55:39 devel kernel: thunderbolt 0000:07:00.0: interrupt for TX ring 0 is already enabled May 27 13:55:39 devel kernel: WARNING: CPU: 15 PID: 21394 at drivers/thunderbolt/nhi.c:137 ring_interrupt_active+0x1ff/0x250 [thunderbolt] May 27 13:55:39 devel kernel: Modules linked in: squashfs nls_iso8859_1 nls_cp437 tun fuse 8021q garp mrp iptable_nat xt_MASQUERADE nf_nat nf_conntrack nf_defrag_ipv4 ip_tables x_tables efivarfs binfmt_misc snd_ctl_led snd_soc_sof_sdw snd_soc_intel_hda_dsp_common snd_soc_intel_sof_maxim_common snd_sof_probes snd_soc_rt715 snd_soc_rt711 snd_soc_rt1308_sdw regmap_sdw snd_soc_dmic snd_sof_pci_intel_cnl snd_sof_intel_hda_common snd_sof_pci soundwire_intel soundwire_generic_allocation soundwire_cadence snd_sof_intel_hda snd_sof snd_sof_utils snd_sof_xtensa_dsp snd_soc_acpi_intel_match snd_soc_acpi snd_soc_hdac_hda soundwire_bus snd_hda_ext_core snd_hda_codec_hdmi snd_soc_core coretemp snd_compress ac97_bus nouveau intel_tcc_cooling snd_hda_intel x86_pkg_temp_thermal dell_smm_hwmon hid_multitouch iwlmvm hwmon intel_powerclamp snd_intel_dspcfg mxm_wmi i915 i2c_designware_platform snd_intel_sdw_acpi rtsx_pci_sdmmc drm_ttm_helper i2c_designware_core mac80211 drm_buddy i2c_algo_bit dell_laptop snd_hda_codec May 27 13:55:39 devel kernel: ucsi_ccg dell_wmi mmc_core hid_generic drm_display_helper ledtrig_audio sparse_keymap libarc4 snd_hwdep intel_rapl_msr dell_smbios uvcvideo ttm snd_hda_core dell_wmi_sysman kvm_intel videobuf2_vmalloc firmware_attributes_class dell_wmi_descriptor wmi_bmof intel_wmi_thunderbolt dcdbas processor_thermal_device_pci_legacy drm_kms_helper videobuf2_memops iwlwifi intel_soc_dts_iosf kvm btusb r8153_ecm btrtl videobuf2_v4l2 snd_pcm syscopyarea processor_thermal_device irqbypass cdc_ether btbcm evdev usbnet psmouse intel_lpss_pci btintel processor_thermal_rfim snd_timer videobuf2_common crc32c_intel ucsi_acpi sysfillrect ghash_clmulni_intel serio_raw cfg80211 efi_pstore r8152 typec_ucsi bluetooth sysimgblt videodev processor_thermal_mbox intel_gtt intel_lpss fb_sys_fops processor_thermal_rapl i2c_i801 roles snd i2c_nvidia_gpu drm i2c_smbus ecdh_generic idma64 i2c_hid_acpi mii usbhid thunderbolt mc soundcore rtsx_pci ecc agpgart i2c_ccgx_ucsi rfkill intel_rapl_common mfd_core May 27 13:55:39 devel kernel: intel_pch_thermal i2c_hid typec video button battery hid int3403_thermal int340x_thermal_zone pinctrl_cannonlake pinctrl_intel wmi int3400_thermal intel_pmc_core acpi_pad acpi_thermal_rel acpi_tad ac usb_storage May 27 13:55:39 devel kernel: CPU: 15 PID: 21394 Comm: kworker/u32:15 Tainted: G W 6.1.30-dell-2 #1 May 27 13:55:39 devel kernel: Hardware name: Dell Inc. XPS 17 9700/0P1CHN, BIOS 1.11.1 11/18/2021 May 27 13:55:39 devel kernel: Workqueue: events_unbound async_run_entry_fn May 27 13:55:39 devel kernel: RIP: 0010:ring_interrupt_active+0x1ff/0x250 [thunderbolt] May 27 13:55:39 devel kernel: Code: 24 04 e8 24 2b 3c e1 4c 8b 4c 24 08 44 8b 44 24 04 48 c7 c7 50 c7 29 a0 48 8b 4c 24 10 48 8b 54 24 18 48 89 c6 e8 71 34 e4 e0 <0f> 0b 45 84 ed 0f 85 09 ff ff ff 48 8b 43 08 f6 40 70 01 0f 85 38 May 27 13:55:39 devel kernel: RSP: 0018:ffffc90000517c48 EFLAGS: 00010082 May 27 13:55:39 devel kernel: RAX: 0000000000000000 RBX: ffff888101dab800 RCX: 0000000000000000 May 27 13:55:39 devel kernel: RDX: 0000000000000004 RSI: 0000000000000086 RDI: 00000000ffffffff May 27 13:55:39 devel kernel: RBP: 0000000000000000 R08: 80000000ffffe7b4 R09: 0000000082999bac May 27 13:55:39 devel kernel: R10: ffffffffffffffff R11: ffffffff82999ba1 R12: 0000000000001001 May 27 13:55:39 devel kernel: R13: 0000000000000001 R14: 0000000000038200 R15: 0000000000000001 May 27 13:55:39 devel kernel: FS: 0000000000000000(0000) GS:ffff88887d7c0000(0000) knlGS:0000000000000000 May 27 13:55:39 devel kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 May 27 13:55:39 devel kernel: CR2: 00007f745c010b00 CR3: 000000000220a005 CR4: 00000000007706e0 May 27 13:55:39 devel kernel: PKRU: 55555554 May 27 13:55:39 devel kernel: Call Trace: May 27 13:55:39 devel kernel: <TASK> May 27 13:55:39 devel kernel: tb_ring_start+0x141/0x230 [thunderbolt] May 27 13:55:39 devel kernel: tb_ctl_start+0x1f/0x70 [thunderbolt] May 27 13:55:39 devel kernel: ? pci_pm_restore_noirq+0xc0/0xc0 May 27 13:55:39 devel kernel: tb_domain_runtime_resume+0x15/0x30 [thunderbolt] May 27 13:55:39 devel kernel: __rpm_callback+0x41/0x110 May 27 13:55:39 devel kernel: ? pci_pm_restore_noirq+0xc0/0xc0 May 27 13:55:39 devel kernel: rpm_callback+0x59/0x70 May 27 13:55:39 devel kernel: rpm_resume+0x4b3/0x7f0 May 27 13:55:39 devel kernel: ? _raw_spin_unlock_irq+0x13/0x30 May 27 13:55:39 devel kernel: ? __wait_for_common+0x171/0x1a0 May 27 13:55:39 devel kernel: ? usleep_range_state+0x90/0x90 May 27 13:55:39 devel kernel: ? preempt_count_add+0x68/0xa0 May 27 13:55:39 devel kernel: __pm_runtime_resume+0x4a/0x80 May 27 13:55:39 devel kernel: pci_pm_suspend+0x60/0x170 May 27 13:55:39 devel kernel: ? pci_pm_freeze+0xb0/0xb0 May 27 13:55:39 devel kernel: dpm_run_callback+0x3f/0x150 May 27 13:55:39 devel kernel: ? _raw_spin_lock_irqsave+0x19/0x40 May 27 13:55:39 devel kernel: __device_suspend+0x130/0x4d0 May 27 13:55:39 devel kernel: async_suspend+0x1b/0x90 May 27 13:55:39 devel kernel: async_run_entry_fn+0x1a/0xa0 May 27 13:55:39 devel kernel: process_one_work+0x1bd/0x3c0 May 27 13:55:39 devel kernel: worker_thread+0x4d/0x3c0 May 27 13:55:39 devel kernel: ? process_one_work+0x3c0/0x3c0 May 27 13:55:39 devel kernel: kthread+0xe5/0x110 May 27 13:55:39 devel kernel: ? kthread_complete_and_exit+0x20/0x20 May 27 13:55:39 devel kernel: ret_from_fork+0x1f/0x30 May 27 13:55:39 devel kernel: </TASK> May 27 13:55:39 devel kernel: ---[ end trace 0000000000000000 ]---

1 year, 3 months

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Linux-stable-mirror August 2023