From: kernel test robot <oliver.sang@intel.com>
To: Ingo Molnar <mingo@kernel.org>
Cc: <oe-lkp@lists.linux.dev>, <lkp@intel.com>,
<linux-kernel@vger.kernel.org>, <x86@kernel.org>,
Borislav Petkov <bp@alien8.de>,
Peter Zijlstra <peterz@infradead.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
<oliver.sang@intel.com>
Subject: [tip:core/bugs] [bugs/core] 1d1c158ece: WARNING:at__seccomp_filter,CPU##:systemd-journal
Date: Tue, 22 Jul 2025 13:26:40 +0800 [thread overview]
Message-ID: <202507220719.dc58fb69-lkp@intel.com> (raw)
Hello,
as we understand, by this commit, the stat (1) becomes stat (2)(3) are expected
and can supply more information.
0e271227ed4ba41e 1d1c158ece6cb7538026233d002
---------------- ---------------------------
fail:runs %reproduction fail:runs
| | |
6:6 -100% :6 dmesg.WARNING:CPU:#PID:#at__seccomp_filter <----- (1)
:6 100% 6:6 dmesg.WARNING:at__seccomp_filter,CPU##:systemd-journal <----- (2)
:6 100% 6:6 dmesg.WARNING:at__seccomp_filter,CPU##:systemd-udevd <----- (3)
however, we failed to bisect stat (1) so cannot capture the real first bad
commit for the WARNING.
we still make out this report FYI there is a WARNING captured in our tests.
kernel test robot noticed "WARNING:at__seccomp_filter,CPU##:systemd-journal" on:
commit: 1d1c158ece6cb7538026233d0020b18e183d39a9 ("bugs/core: Reorganize fields in the first line of WARNING output, add ->comm[] output")
https://git.kernel.org/cgit/linux/kernel/git/tip/tip.git core/bugs
[test failed on linux-next/master d086c886ceb9f59dea6c3a9dae7eb89e780a20c9]
in testcase: boot
config: x86_64-randconfig-104-20250717
compiler: clang-20
test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G
(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@intel.com>
| Closes: https://lore.kernel.org/oe-lkp/202507220719.dc58fb69-lkp@intel.com
[ 106.315928][ T80] WARNING: at __seccomp_filter+0x200/0xac0, CPU#1: systemd-journal/80
[ 106.316776][ T80] Modules linked in: autofs4
[ 106.316807][ T80] CPU: 1 UID: 0 PID: 80 Comm: systemd-journal Not tainted 6.16.0-rc1-00016-g1d1c158ece6c #1 NONE
[ 106.316820][ T80] RIP: 0010:__seccomp_filter (include/linux/bpf.h:1322 include/linux/filter.h:718 include/linux/filter.h:725 include/linux/filter.h:742 kernel/seccomp.c:424 kernel/seccomp.c:1258)
[ 106.318660][ T80] Code: 26 55 ea ff 66 90 e8 9f 20 ff ff 4d 8b 5e 30 49 83 c6 48 48 8d bc 24 c8 00 00 00 4c 89 f6 41 ba ee f2 9c cf 45 03 53 c1 74 02 <0f> 0b 41 ff d3 0f 1f 00 41 89 c5 e8 30 d6 e9 ff 45 89 ee 41 81 e6
All code
========
0: 26 55 es push %rbp
2: ea (bad)
3: ff 66 90 jmp *-0x70(%rsi)
6: e8 9f 20 ff ff call 0xffffffffffff20aa
b: 4d 8b 5e 30 mov 0x30(%r14),%r11
f: 49 83 c6 48 add $0x48,%r14
13: 48 8d bc 24 c8 00 00 lea 0xc8(%rsp),%rdi
1a: 00
1b: 4c 89 f6 mov %r14,%rsi
1e: 41 ba ee f2 9c cf mov $0xcf9cf2ee,%r10d
24: 45 03 53 c1 add -0x3f(%r11),%r10d
28: 74 02 je 0x2c
2a:* 0f 0b ud2 <-- trapping instruction
2c: 41 ff d3 call *%r11
2f: 0f 1f 00 nopl (%rax)
32: 41 89 c5 mov %eax,%r13d
35: e8 30 d6 e9 ff call 0xffffffffffe9d66a
3a: 45 89 ee mov %r13d,%r14d
3d: 41 rex.B
3e: 81 .byte 0x81
3f: e6 .byte 0xe6
Code starting with the faulting instruction
===========================================
0: 0f 0b ud2
2: 41 ff d3 call *%r11
5: 0f 1f 00 nopl (%rax)
8: 41 89 c5 mov %eax,%r13d
b: e8 30 d6 e9 ff call 0xffffffffffe9d640
10: 45 89 ee mov %r13d,%r14d
13: 41 rex.B
14: 81 .byte 0x81
15: e6 .byte 0xe6
1;39mKernel Trac[ 106.321891][ T80] RDX: 0000000000000000 RSI: ffffc90000075048 RDI: ffffc900012a3d40
m.[ 106.323652][ T80] R10: 00000000cfa1f2ef R11: ffffffffa0000d58 R12: ffff8881a8e18600
[ 106.328424][ T80] R13: ffffc900012a3f70 R14: ffffc90000075048 R15: 000000007fff0000
[ 106.329818][ T80] FS: 0000000000000000(0000) GS:ffff8884ab26d000(0000) knlGS:0000000000000000
[ 106.331921][ T80] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033
[ 106.332829][ T80] CR2: 00000000f7fcd01c CR3: 000000017d202000 CR4: 00000000000406b0
[ 106.334346][ T80] Call Trace:
[ 106.334870][ T80] <TASK>
[ 106.335399][ T80] ? __free_frozen_pages (arch/x86/include/asm/preempt.h:85 (discriminator 9) mm/page_alloc.c:2735 (discriminator 9))
[ 106.337400][ T80] ? _raw_spin_unlock (arch/x86/include/asm/preempt.h:85 (discriminator 9) include/linux/spinlock_api_smp.h:143 (discriminator 9) kernel/locking/spinlock.c:186 (discriminator 9))
[ 106.338252][ T80] ? __free_frozen_pages (arch/x86/include/asm/preempt.h:85 (discriminator 9) mm/page_alloc.c:2735 (discriminator 9))
[ 106.339163][ T80] ? slab_free (mm/slub.c:4645)
[ 106.339936][ T80] syscall_trace_enter (kernel/entry/common.c:53)
[ 106.340888][ T80] ? asm_int80_emulation (arch/x86/include/asm/idtentry.h:626)
[ 106.341785][ T80] do_int80_emulation (include/linux/entry-common.h:170 arch/x86/entry/syscall_32.c:171)
[ 106.342700][ T80] ? asm_int80_emulation (arch/x86/include/asm/idtentry.h:626)
[ 106.343611][ T80] ? do_int80_emulation (arch/x86/entry/syscall_32.c:176)
[ 106.344554][ T80] ? do_user_addr_fault (include/linux/mmap_lock.h:?)
[ 106.345555][ T80] ? do_user_addr_fault (arch/x86/mm/fault.c:1441 (discriminator 335708160))
[ 106.346550][ T80] ? trace_hardirqs_off_finish (include/trace/events/preemptirq.h:36 (discriminator 8))
[ 106.347721][ T80] ? do_int80_emulation (arch/x86/include/asm/jump_label.h:36 arch/x86/entry/syscall_32.c:148)
[ 106.362839][ T80] asm_int80_emulation (arch/x86/include/asm/idtentry.h:626)
[ 106.363662][ T80] RIP: 0023:0xf7febcb0
[ 106.364393][ T80] Code: 4c 24 34 89 44 24 0c 8b 44 24 44 8b 54 24 38 8b 74 24 3c 8b 7c 24 40 a9 ff 0f 00 00 75 1c c1 e8 0c 89 c5 b8 c0 00 00 00 cd 80 <3d> 00 f0 ff ff 77 21 83 c4 1c 5b 5e 5f 5d c3 90 83 c4 1c b8 ea ff
All code
========
0: 4c 24 34 rex.WR and $0x34,%al
3: 89 44 24 0c mov %eax,0xc(%rsp)
7: 8b 44 24 44 mov 0x44(%rsp),%eax
b: 8b 54 24 38 mov 0x38(%rsp),%edx
f: 8b 74 24 3c mov 0x3c(%rsp),%esi
13: 8b 7c 24 40 mov 0x40(%rsp),%edi
17: a9 ff 0f 00 00 test $0xfff,%eax
1c: 75 1c jne 0x3a
1e: c1 e8 0c shr $0xc,%eax
21: 89 c5 mov %eax,%ebp
23: b8 c0 00 00 00 mov $0xc0,%eax
28: cd 80 int $0x80
2a:* 3d 00 f0 ff ff cmp $0xfffff000,%eax <-- trapping instruction
2f: 77 21 ja 0x52
31: 83 c4 1c add $0x1c,%esp
34: 5b pop %rbx
35: 5e pop %rsi
36: 5f pop %rdi
37: 5d pop %rbp
38: c3 ret
39: 90 nop
3a: 83 c4 1c add $0x1c,%esp
3d: b8 .byte 0xb8
3e: ea (bad)
3f: ff .byte 0xff
Code starting with the faulting instruction
===========================================
0: 3d 00 f0 ff ff cmp $0xfffff000,%eax
5: 77 21 ja 0x28
7: 83 c4 1c add $0x1c,%esp
a: 5b pop %rbx
b: 5e pop %rsi
c: 5f pop %rdi
d: 5d pop %rbp
e: c3 ret
f: 90 nop
10: 83 c4 1c add $0x1c,%esp
13: b8 .byte 0xb8
14: ea (bad)
15: ff .byte 0xff
[ 106.367884][ T80] RSP: 002b:00000000ffd23590 EFLAGS: 00000246 ORIG_RAX: 00000000000000c0
[ 106.369233][ T80] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000002000
[ 106.370445][ T80] RDX: 0000000000000003 RSI: 0000000000000022 RDI: 00000000ffffffff
[ 106.371662][ T80] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[ 106.372873][ T80] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[ 106.374069][ T80] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[ 106.375321][ T80] </TASK>
[ 106.375877][ T80] irq event stamp: 7205
[ 106.376550][ T80] hardirqs last enabled at (7213): __console_unlock (arch/x86/include/asm/irqflags.h:19 arch/x86/include/asm/irqflags.h:109 arch/x86/include/asm/irqflags.h:151 kernel/printk/printk.c:344 kernel/printk/printk.c:2885)
[ 106.378146][ T80] hardirqs last disabled at (7230): __console_unlock (kernel/printk/printk.c:342 (discriminator 9) kernel/printk/printk.c:2885 (discriminator 9))
[ 106.379717][ T80] softirqs last enabled at (7228): __irq_exit_rcu (arch/x86/include/asm/jump_label.h:36 kernel/softirq.c:682)
[ 106.381286][ T80] softirqs last disabled at (7221): __irq_exit_rcu (arch/x86/include/asm/jump_label.h:36 kernel/softirq.c:682)
[ 106.382872][ T80] ---[ end trace 0000000000000000 ]---
[ 106.384045][ T80] CFI failure at __seccomp_filter+0x200/0xac0 (target: 0xffffffffa0000cdc; expected type: 0x30630d12
The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20250722/202507220719.dc58fb69-lkp@intel.com
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
reply other threads:[~2025-07-22 5:27 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=202507220719.dc58fb69-lkp@intel.com \
--to=oliver.sang@intel.com \
--cc=bp@alien8.de \
--cc=linux-kernel@vger.kernel.org \
--cc=lkp@intel.com \
--cc=mingo@kernel.org \
--cc=oe-lkp@lists.linux.dev \
--cc=peterz@infradead.org \
--cc=torvalds@linux-foundation.org \
--cc=x86@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.