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Message-ID: <202407101636.d9d4e8be-oliver.sang@intel.com>
Date: Wed, 10 Jul 2024 16:37:00 +0800
From: kernel test robot <oliver.sang@...el.com>
To: Anna-Maria Behnsen <anna-maria@...utronix.de>
CC: <oe-lkp@...ts.linux.dev>, <lkp@...el.com>, <linux-kernel@...r.kernel.org>,
<x86@...nel.org>, Thomas Gleixner <tglx@...utronix.de>, Frederic Weisbecker
<frederic@...nel.org>, <oliver.sang@...el.com>
Subject: [tip:timers/urgent] [timers/migration] 8cdb61838e:
WARNING:at_kernel/time/timer_migration.c:#tmigr_connect_child_parent
Hello,
kernel test robot noticed "WARNING:at_kernel/time/timer_migration.c:#tmigr_connect_child_parent" on:
commit: 8cdb61838ee5c63556773ea2eed24deab6b15257 ("timers/migration: Move hierarchy setup into cpuhotplug prepare callback")
https://git.kernel.org/cgit/linux/kernel/git/tip/tip.git timers/urgent
[test failed on linux-next/master 82d01fe6ee52086035b201cfa1410a3b04384257]
in testcase: filebench
version: filebench-x86_64-22620e6-1_20240224
with following parameters:
disk: 1HDD
fs: xfs
test: randomwrite.f
cpufreq_governor: performance
compiler: gcc-13
test machine: 128 threads 2 sockets Intel(R) Xeon(R) Platinum 8358 CPU @ 2.60GHz (Ice Lake) with 128G memory
(please refer to attached dmesg/kmsg for entire log/backtrace)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <oliver.sang@...el.com>
| Closes: https://lore.kernel.org/oe-lkp/202407101636.d9d4e8be-oliver.sang@intel.com
[ 16.306955][ T209] ------------[ cut here ]------------
[ 16.312287][ T209] WARNING: CPU: 32 PID: 209 at kernel/time/timer_migration.c:1620 tmigr_connect_child_parent (kernel/time/timer_migration.c:1620 (discriminator 7))
[ 16.323148][ T209] Modules linked in:
[ 16.326901][ T209] CPU: 32 PID: 209 Comm: cpuhp/32 Not tainted 6.10.0-rc6-00002-g8cdb61838ee5 #1
[ 16.335766][ T209] RIP: 0010:tmigr_connect_child_parent (kernel/time/timer_migration.c:1620 (discriminator 7))
[ 16.341945][ T209] Code: c6 07 00 0f 1f 00 fb 66 90 0f b6 45 60 48 89 e2 48 89 ee 48 89 df 88 44 24 18 e8 ec fc ff ff 84 c0 75 09 48 83 7b 08 00 74 02 <0f> 0b 48 8b 44 24 20 65 48 2b 04 25 28 00 00 00 75 36 48 83 c4 28
All code
========
0: c6 07 00 movb $0x0,(%rdi)
3: 0f 1f 00 nopl (%rax)
6: fb sti
7: 66 90 xchg %ax,%ax
9: 0f b6 45 60 movzbl 0x60(%rbp),%eax
d: 48 89 e2 mov %rsp,%rdx
10: 48 89 ee mov %rbp,%rsi
13: 48 89 df mov %rbx,%rdi
16: 88 44 24 18 mov %al,0x18(%rsp)
1a: e8 ec fc ff ff callq 0xfffffffffffffd0b
1f: 84 c0 test %al,%al
21: 75 09 jne 0x2c
23: 48 83 7b 08 00 cmpq $0x0,0x8(%rbx)
28: 74 02 je 0x2c
2a:* 0f 0b ud2 <-- trapping instruction
2c: 48 8b 44 24 20 mov 0x20(%rsp),%rax
31: 65 48 2b 04 25 28 00 sub %gs:0x28,%rax
38: 00 00
3a: 75 36 jne 0x72
3c: 48 83 c4 28 add $0x28,%rsp
Code starting with the faulting instruction
===========================================
0: 0f 0b ud2
2: 48 8b 44 24 20 mov 0x20(%rsp),%rax
7: 65 48 2b 04 25 28 00 sub %gs:0x28,%rax
e: 00 00
10: 75 36 jne 0x48
12: 48 83 c4 28 add $0x28,%rsp
[ 16.361382][ T209] RSP: 0000:ffa0000007587da0 EFLAGS: 00010286
[ 16.367302][ T209] RAX: 0000000000000000 RBX: ff11002000b56b00 RCX: 0000000000010101
[ 16.375130][ T209] RDX: 0000000000010101 RSI: ff11002000b56b00 RDI: ff11002000b56b50
[ 16.382955][ T209] RBP: ff11002000b57500 R08: 0000000000000101 R09: ffa0000007587da0
[ 16.390782][ T209] R10: 0000000000000001 R11: 00000000c5672a10 R12: 0000000000000001
[ 16.398608][ T209] R13: ff11001084311240 R14: 0000000000000020 R15: 0000000000000002
[ 16.406433][ T209] FS: 0000000000000000(0000) GS:ff11001fffe00000(0000) knlGS:0000000000000000
[ 16.415213][ T209] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 16.421650][ T209] CR2: 0000000000000000 CR3: 000000207de1c001 CR4: 0000000000771ef0
[ 16.429477][ T209] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 16.437301][ T209] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 16.445128][ T209] PKRU: 55555554
[ 16.448535][ T209] Call Trace:
[ 16.451680][ T209] <TASK>
[ 16.454479][ T209] ? __warn (kernel/panic.c:693)
[ 16.458405][ T209] ? tmigr_connect_child_parent (kernel/time/timer_migration.c:1620 (discriminator 7))
[ 16.463980][ T209] ? report_bug (lib/bug.c:180 lib/bug.c:219)
[ 16.468338][ T209] ? handle_bug (arch/x86/kernel/traps.c:239)
[ 16.472523][ T209] ? exc_invalid_op (arch/x86/kernel/traps.c:260 (discriminator 1))
[ 16.477055][ T209] ? asm_exc_invalid_op (arch/x86/include/asm/idtentry.h:621)
[ 16.481936][ T209] ? tmigr_connect_child_parent (kernel/time/timer_migration.c:1620 (discriminator 7))
[ 16.487507][ T209] tmigr_setup_groups+0x1e6/0x430
[ 16.492993][ T209] ? __pfx_tmigr_cpu_prepare (kernel/time/timer_migration.c:1727)
[ 16.498305][ T209] tmigr_cpu_prepare (kernel/time/timer_migration.c:1721 kernel/time/timer_migration.c:1737)
[ 16.502927][ T209] cpuhp_invoke_callback (kernel/cpu.c:194)
[ 16.507980][ T209] ? __pfx_smpboot_thread_fn (kernel/smpboot.c:107)
[ 16.513291][ T209] cpuhp_thread_fun (kernel/cpu.c:1092 (discriminator 1))
[ 16.517910][ T209] smpboot_thread_fn (kernel/smpboot.c:164)
[ 16.522615][ T209] kthread (kernel/kthread.c:389)
[ 16.526367][ T209] ? __pfx_kthread (kernel/kthread.c:342)
[ 16.530814][ T209] ret_from_fork (arch/x86/kernel/process.c:147)
[ 16.535088][ T209] ? __pfx_kthread (kernel/kthread.c:342)
[ 16.539533][ T209] ret_from_fork_asm (arch/x86/entry/entry_64.S:257)
[ 16.544153][ T209] </TASK>
[ 16.547039][ T209] ---[ end trace 0000000000000000 ]---
[ 16.562459][ T1] Timer migration setup failed
The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20240710/202407101636.d9d4e8be-oliver.sang@intel.com
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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