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Date: Wed, 25 Oct 2023 23:12:25 +0800
From: kernel test robot <oliver.sang@...el.com>
To: Xabier Marquiegui <reibax@...il.com>
CC: <oe-lkp@...ts.linux.dev>, <lkp@...el.com>, Linux Memory Management List
<linux-mm@...ck.org>, "David S. Miller" <davem@...emloft.net>, "Richard
Cochran" <richardcochran@...il.com>, <netdev@...r.kernel.org>,
<oliver.sang@...el.com>
Subject: [linux-next:master] [ptp] 8f5de6fb24: kernel_BUG_at_lib/list_debug.c
Hello,
kernel test robot noticed "kernel_BUG_at_lib/list_debug.c" on:
commit: 8f5de6fb245326704f37d91780b9a10253a8a100 ("ptp: support multiple timestamp event readers")
https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master
[test failed on linux-next/master 2030579113a1b1b5bfd7ff24c0852847836d8fd1]
in testcase: stress-ng
version: stress-ng-x86_64-0.15.04-1_20231012
with following parameters:
nr_threads: 10%
disk: 1HDD
testtime: 60s
fs: ext4
class: os
test: clock
cpufreq_governor: performance
compiler: gcc-12
test machine: 64 threads 2 sockets Intel(R) Xeon(R) Gold 6346 CPU @ 3.10GHz (Ice Lake) with 256G 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/202310252217.816dfed6-oliver.sang@intel.com
[ 58.146527][ T4761] ------------[ cut here ]------------
[ 58.146528][ T4761] kernel BUG at lib/list_debug.c:32!
[ 58.146534][ T4761] invalid opcode: 0000 [#1] SMP NOPTI
[ 58.146537][ T4761] CPU: 55 PID: 4761 Comm: stress-ng-clock Not tainted 6.6.0-rc5-01265-g8f5de6fb2453 #1
[ 58.146540][ T4761] Hardware name: Inspur NF5180M6/NF5180M6, BIOS 06.00.04 04/12/2022
[ 58.146542][ T4761] RIP: 0010:__list_add_valid_or_report (lib/list_debug.c:32 (discriminator 3))
[ 58.146552][ T4761] Code: a3 ff 0f 0b 48 89 c1 48 c7 c7 08 c8 72 82 e8 1f 31 a3 ff 0f 0b 48 89 d1 48 89 c6 4c 89 c2 48 c7 c7 60 c8 72 82 e8 08 31 a3 ff <0f> 0b 48 89 f2 48 89 c1 48 89 fe 48 c7 c7 b8 c8 72 82 e8 f1 30 a3
All code
========
0: a3 ff 0f 0b 48 89 c1 movabs %eax,0xc748c189480b0fff
7: 48 c7
9: c7 (bad)
a: 08 c8 or %cl,%al
c: 72 82 jb 0xffffffffffffff90
e: e8 1f 31 a3 ff call 0xffffffffffa33132
13: 0f 0b ud2
15: 48 89 d1 mov %rdx,%rcx
18: 48 89 c6 mov %rax,%rsi
1b: 4c 89 c2 mov %r8,%rdx
1e: 48 c7 c7 60 c8 72 82 mov $0xffffffff8272c860,%rdi
25: e8 08 31 a3 ff call 0xffffffffffa33132
2a:* 0f 0b ud2 <-- trapping instruction
2c: 48 89 f2 mov %rsi,%rdx
2f: 48 89 c1 mov %rax,%rcx
32: 48 89 fe mov %rdi,%rsi
35: 48 c7 c7 b8 c8 72 82 mov $0xffffffff8272c8b8,%rdi
3c: e8 .byte 0xe8
3d: f1 int1
3e: 30 .byte 0x30
3f: a3 .byte 0xa3
Code starting with the faulting instruction
===========================================
0: 0f 0b ud2
2: 48 89 f2 mov %rsi,%rdx
5: 48 89 c1 mov %rax,%rcx
8: 48 89 fe mov %rdi,%rsi
b: 48 c7 c7 b8 c8 72 82 mov $0xffffffff8272c8b8,%rdi
12: e8 .byte 0xe8
13: f1 int1
14: 30 .byte 0x30
15: a3 .byte 0xa3
[ 58.146554][ T4761] RSP: 0018:ffa0000024d03c28 EFLAGS: 00010246
[ 58.146556][ T4761] RAX: 0000000000000075 RBX: ff110020890c2000 RCX: 0000000000000000
[ 58.146557][ T4761] RDX: 0000000000000000 RSI: ff11003fc09dc700 RDI: ff11003fc09dc700
[ 58.146559][ T4761] RBP: ff11002086fa9330 R08: 80000000ffff8b8c R09: 0000000000ffff10
[ 58.146560][ T4761] R10: 000000000000000f R11: 000000000000000f R12: ff11002086262800
[ 58.146561][ T4761] R13: ff11002086aa1010 R14: ff110020890c3010 R15: ff11002086262bf0
[ 58.146562][ T4761] FS: 00007f2138c47740(0000) GS:ff11003fc09c0000(0000) knlGS:0000000000000000
[ 58.146563][ T4761] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 58.146565][ T4761] CR2: 00007f2138c1e8f8 CR3: 00000040581c0004 CR4: 0000000000771ee0
[ 58.146566][ T4761] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 58.146568][ T4761] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 58.146569][ T4761] PKRU: 55555554
[ 58.146570][ T4761] Call Trace:
[ 58.146572][ T4761] <TASK>
[ 58.146574][ T4761] ? die (arch/x86/kernel/dumpstack.c:421 arch/x86/kernel/dumpstack.c:434 arch/x86/kernel/dumpstack.c:447)
[ 58.146578][ T4761] ? do_trap (arch/x86/kernel/traps.c:112 arch/x86/kernel/traps.c:153)
[ 58.146589][ T4761] ? __list_add_valid_or_report (lib/list_debug.c:32 (discriminator 3))
[ 58.146592][ T4761] ? do_error_trap (arch/x86/include/asm/traps.h:59 arch/x86/kernel/traps.c:174)
[ 58.146595][ T4761] ? __list_add_valid_or_report (lib/list_debug.c:32 (discriminator 3))
[ 58.146597][ T4761] ? exc_invalid_op (arch/x86/kernel/traps.c:265)
[ 58.146603][ T4761] ? __list_add_valid_or_report (lib/list_debug.c:32 (discriminator 3))
[ 58.146605][ T4761] ? asm_exc_invalid_op (arch/x86/include/asm/idtentry.h:568)
[ 58.146615][ T4761] ? __list_add_valid_or_report (lib/list_debug.c:32 (discriminator 3))
[ 58.146617][ T4761] ? __list_add_valid_or_report (lib/list_debug.c:32 (discriminator 3))
[ 58.146619][ T4761] ptp_open (include/linux/list.h:150 include/linux/list.h:183 drivers/ptp/ptp_chardev.c:114)
[ 58.146624][ T4761] posix_clock_open (kernel/time/posix-clock.c:134)
[ 58.146632][ T4761] chrdev_open (fs/char_dev.c:414)
[ 58.146638][ T4761] ? __pfx_chrdev_open (fs/char_dev.c:374)
[ 58.146640][ T4761] do_dentry_open (fs/open.c:929)
[ 58.146644][ T4761] do_open (fs/namei.c:3642)
[ 58.146652][ T4761] ? open_last_lookups (fs/namei.c:3586)
[ 58.146655][ T4761] path_openat (fs/namei.c:3797)
[ 58.146658][ T4761] do_filp_open (fs/namei.c:3823)
[ 58.146661][ T4761] do_sys_openat2 (fs/open.c:1422)
[ 58.146666][ T4761] __x64_sys_openat (fs/open.c:1448)
[ 58.146669][ T4761] do_syscall_64 (arch/x86/entry/common.c:50 arch/x86/entry/common.c:80)
[ 58.146672][ T4761] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:120)
[ 58.146676][ T4761] RIP: 0033:0x7f2138dd5127
[ 58.146678][ T4761] Code: 25 00 00 41 00 3d 00 00 41 00 74 47 64 8b 04 25 18 00 00 00 85 c0 75 6b 44 89 e2 48 89 ee bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 95 00 00 00 48 8b 4c 24 28 64 48 2b 0c 25
All code
========
0: 25 00 00 41 00 and $0x410000,%eax
5: 3d 00 00 41 00 cmp $0x410000,%eax
a: 74 47 je 0x53
c: 64 8b 04 25 18 00 00 mov %fs:0x18,%eax
13: 00
14: 85 c0 test %eax,%eax
16: 75 6b jne 0x83
18: 44 89 e2 mov %r12d,%edx
1b: 48 89 ee mov %rbp,%rsi
1e: bf 9c ff ff ff mov $0xffffff9c,%edi
23: b8 01 01 00 00 mov $0x101,%eax
28: 0f 05 syscall
2a:* 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax <-- trapping instruction
30: 0f 87 95 00 00 00 ja 0xcb
36: 48 8b 4c 24 28 mov 0x28(%rsp),%rcx
3b: 64 fs
3c: 48 rex.W
3d: 2b .byte 0x2b
3e: 0c 25 or $0x25,%al
Code starting with the faulting instruction
===========================================
0: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax
6: 0f 87 95 00 00 00 ja 0xa1
c: 48 8b 4c 24 28 mov 0x28(%rsp),%rcx
11: 64 fs
12: 48 rex.W
13: 2b .byte 0x2b
14: 0c 25 or $0x25,%al
The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20231025/202310252217.816dfed6-oliver.sang@intel.com
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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