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WARNING in idtentry_exit

Status: closed as invalid on 2022/11/15 07:13
Subsystems: kernel
[Documentation on labels]
First crash: 1868d, last: 1852d
Cause bisection: introduced by (bisect log) :
commit a21ee6055c30ce68c4e201c6496f0ed2a1936230
Author: Peter Zijlstra <peterz@infradead.org>
Date: Mon May 25 10:22:41 2020 +0000

  lockdep: Change hardirq{s_enabled,_context} to per-cpu variables

Crash: WARNING in idtentry_exit (log)
Repro: C syz .config
  
▶ ▼ Last patch testing requests (2)
Created Duration User Patch Repo Result
2022/09/20 06:29 10m retest repro linux-next report log
2022/09/20 04:29 10m retest repro linux-next report log

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 0 PID: 6820 at arch/x86/entry/common.c:692 idtentry_exit+0x4a/0x90 arch/x86/entry/common.c:696
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 6820 Comm: syz-executor643 Not tainted 5.8.0-rc6-next-20200720-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x18f/0x20d lib/dump_stack.c:118
 panic+0x2e3/0x75c kernel/panic.c:231
 __warn.cold+0x20/0x45 kernel/panic.c:600
 report_bug+0x1bd/0x210 lib/bug.c:198
 handle_bug+0x38/0x90 arch/x86/kernel/traps.c:234
 exc_invalid_op+0x14/0x40 arch/x86/kernel/traps.c:254
 asm_exc_invalid_op+0x12/0x20 arch/x86/include/asm/idtentry.h:545
RIP: 0010:idtentry_exit+0x4a/0x90 arch/x86/entry/common.c:692
Code: 91 00 00 00 02 74 18 40 84 f6 75 3e 65 8b 05 2d ab 16 78 a9 ff ff ff 7f 74 14 e9 a1 b6 8e f9 40 84 f6 75 42 c3 e9 86 fc ff ff <0f> 0b eb c7 e8 9d b4 76 f9 65 48 8b 04 25 c0 fe 01 00 48 8b 00 a8
RSP: 0018:ffffc90001877190 EFLAGS: 00010002
RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffffffff817a03c7
RDX: ffff888091e80540 RSI: 0000000000000000 RDI: ffffc900018771c8
RBP: ffffc900018771c8 R08: 000000000000dca0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 000000000000dca0
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 exc_page_fault+0xc2/0x160 arch/x86/mm/fault.c:1407
 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:547
RIP: 0010:__softirqentry_text_end+0x39/0x55
Code: e0 04 e0 ff b8 f2 ff ff ff 31 d2 e9 b6 47 cb ff 41 bf f2 ff ff ff 31 c0 e9 dc 41 e1 f8 41 bf f2 ff ff ff 31 ed e9 f7 41 e1 f8 <41> be f2 ff ff ff 48 31 c0 e9 04 45 e1 f8 41 be f2 ff ff ff 48 31
RSP: 0018:ffffc90001877270 EFLAGS: 00010046
RAX: 0000000000000000 RBX: ffffc90001877330 RCX: ffffffff81014f52
RDX: ffff888091e80540 RSI: ffffffff81014f60 RDI: 0000000000000006
RBP: 000000000000dca0 R08: 0000000000000000 R09: ffff888091e80547
R10: 000000000000dca0 R11: 0000000000000001 R12: ffffc9000187733c
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff888091e80540
 get_perf_callchain+0x321/0x620 kernel/events/callchain.c:221
 perf_callchain+0x165/0x1c0 kernel/events/core.c:6985
 perf_prepare_sample+0x8fd/0x1d40 kernel/events/core.c:7012
 __perf_event_output kernel/events/core.c:7170 [inline]
 perf_event_output_forward+0xf3/0x270 kernel/events/core.c:7190
 __perf_event_overflow+0x13c/0x370 kernel/events/core.c:8845
 perf_swevent_overflow kernel/events/core.c:8921 [inline]
 perf_swevent_event+0x347/0x550 kernel/events/core.c:8949
 perf_tp_event+0x2e4/0xb50 kernel/events/core.c:9377
 perf_trace_run_bpf_submit+0x11c/0x200 kernel/events/core.c:9351
 perf_trace_lock_acquire+0x33f/0x520 include/trace/events/lock.h:13
 trace_lock_acquire include/trace/events/lock.h:13 [inline]
 lock_acquire+0x382/0xad0 kernel/locking/lockdep.c:4996
 __mutex_lock_common kernel/locking/mutex.c:956 [inline]
 __mutex_lock+0x134/0x10d0 kernel/locking/mutex.c:1103
 __do_sys_perf_event_open+0x1d29/0x2b50 kernel/events/core.c:11986
 do_syscall_64+0x60/0xe0 arch/x86/entry/common.c:384
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x4412e9
Code: Bad RIP value.
RSP: 002b:00007ffea2f23638 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004412e9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000180
RBP: 000000000000dca0 R08: 0000000000000000 R09: 00000000004002c8
R10: 00000000ffffffff R11: 0000000000000246 R12: 0000000000402090
R13: 0000000000402120 R14: 0000000000000000 R15: 0000000000000000
Kernel Offset: disabled
Rebooting in 86400 seconds..

Crashes (202):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2020/07/20 15:43 linux-next ab8be66e724e 4285ffa3 .config console log report syz C ci-upstream-linux-next-kasan-gce-root
2020/07/20 15:33 linux-next ab8be66e724e 4285ffa3 .config console log report syz C ci-upstream-linux-next-kasan-gce-root
2020/08/05 22:07 upstream 442489c21923 b7129355 .config console log report ci-upstream-kasan-gce-selinux-root
2020/08/05 14:21 upstream 442489c21923 b7129355 .config console log report ci-upstream-kasan-gce-smack-root
2020/08/05 13:39 upstream 442489c21923 b7129355 .config console log report ci-upstream-kasan-gce-root
2020/08/05 12:29 upstream 442489c21923 b7129355 .config console log report ci-upstream-kasan-gce-smack-root
2020/08/05 11:27 upstream 442489c21923 b7129355 .config console log report ci-upstream-kasan-gce-root
2020/08/05 10:50 upstream 442489c21923 b7129355 .config console log report ci-upstream-kasan-gce-root
2020/08/05 09:41 upstream 442489c21923 b7129355 .config console log report ci-upstream-kasan-gce-selinux-root
2020/08/05 04:38 upstream c0842fbc1b18 80a06902 .config console log report ci-upstream-kasan-gce-selinux-root
2020/08/04 22:16 upstream c0842fbc1b18 80a06902 .config console log report ci-upstream-kasan-gce-smack-root
2020/08/04 20:33 upstream c0842fbc1b18 80a06902 .config console log report ci-upstream-kasan-gce-selinux-root
2020/08/04 18:29 upstream c0842fbc1b18 80a06902 .config console log report ci-upstream-kasan-gce-root
2020/08/04 16:07 upstream c0842fbc1b18 80a06902 .config console log report ci-upstream-kasan-gce-selinux-root
2020/08/04 15:45 upstream c0842fbc1b18 80a06902 .config console log report ci-upstream-kasan-gce-root
2020/08/04 14:43 upstream c0842fbc1b18 80a06902 .config console log report ci-upstream-kasan-gce-smack-root
2020/08/04 13:43 upstream c0842fbc1b18 196277c4 .config console log report ci-upstream-kasan-gce-selinux-root
2020/08/04 09:28 upstream c0842fbc1b18 80a06902 .config console log report ci-qemu-upstream-386
2020/08/04 08:28 upstream c0842fbc1b18 196277c4 .config console log report ci-qemu-upstream-386
2020/07/27 16:32 linux-next 26027945c94a cb93dc6a .config console log report ci-upstream-linux-next-kasan-gce-root
2020/07/27 16:32 linux-next 26027945c94a cb93dc6a .config console log report ci-upstream-linux-next-kasan-gce-root
2020/07/27 08:45 linux-next 26027945c94a 51265195 .config console log report ci-upstream-linux-next-kasan-gce-root
2020/07/27 03:50 linux-next 26027945c94a 51265195 .config console log report ci-upstream-linux-next-kasan-gce-root
2020/07/27 02:20 linux-next 26027945c94a 51265195 .config console log report ci-upstream-linux-next-kasan-gce-root
2020/07/26 23:24 linux-next 26027945c94a 51265195 .config console log report ci-upstream-linux-next-kasan-gce-root
2020/07/26 17:48 linux-next 26027945c94a 51265195 .config console log report ci-upstream-linux-next-kasan-gce-root
2020/07/26 16:39 linux-next 26027945c94a 51265195 .config console log report ci-upstream-linux-next-kasan-gce-root
2020/07/26 09:19 linux-next 26027945c94a 1f7cc1ca .config console log report ci-upstream-linux-next-kasan-gce-root
2020/07/26 05:30 linux-next 26027945c94a 1f7cc1ca .config console log report ci-upstream-linux-next-kasan-gce-root
2020/07/26 03:25 linux-next 26027945c94a 1f7cc1ca .config console log report ci-upstream-linux-next-kasan-gce-root
2020/07/26 02:05 linux-next 26027945c94a 1f7cc1ca .config console log report ci-upstream-linux-next-kasan-gce-root
2020/07/25 22:38 linux-next 26027945c94a 1f7cc1ca .config console log report ci-upstream-linux-next-kasan-gce-root
2020/07/25 11:18 linux-next 26027945c94a 1f7cc1ca .config console log report ci-upstream-linux-next-kasan-gce-root
2020/07/25 08:35 linux-next 26027945c94a 1f7cc1ca .config console log report ci-upstream-linux-next-kasan-gce-root
2020/07/25 03:56 linux-next 26027945c94a 554af388 .config console log report ci-upstream-linux-next-kasan-gce-root
2020/07/25 01:47 linux-next 26027945c94a 554af388 .config console log report ci-upstream-linux-next-kasan-gce-root
2020/07/24 21:09 linux-next 26027945c94a 554af388 .config console log report ci-upstream-linux-next-kasan-gce-root
2020/07/24 20:55 linux-next 26027945c94a 554af388 .config console log report ci-upstream-linux-next-kasan-gce-root
2020/07/24 15:30 linux-next 26027945c94a 554af388 .config console log report ci-upstream-linux-next-kasan-gce-root
2020/07/24 01:39 linux-next 4f5baedd579d 70c104a1 .config console log report ci-upstream-linux-next-kasan-gce-root
2020/07/23 20:05 linux-next 4f5baedd579d 70c104a1 .config console log report ci-upstream-linux-next-kasan-gce-root
2020/07/23 16:34 linux-next 4f5baedd579d 340ea530 .config console log report ci-upstream-linux-next-kasan-gce-root
2020/07/23 06:11 linux-next 73aece61f643 340ea530 .config console log report ci-upstream-linux-next-kasan-gce-root
2020/07/23 04:24 linux-next 73aece61f643 340ea530 .config console log report ci-upstream-linux-next-kasan-gce-root
2020/07/23 03:08 linux-next 73aece61f643 340ea530 .config console log report ci-upstream-linux-next-kasan-gce-root
2020/07/22 12:48 linux-next de2e69cfe54a 128cd85f .config console log report ci-upstream-linux-next-kasan-gce-root
2020/07/22 08:40 linux-next de2e69cfe54a 128cd85f .config console log report ci-upstream-linux-next-kasan-gce-root
2020/07/22 08:40 linux-next de2e69cfe54a 128cd85f .config console log report ci-upstream-linux-next-kasan-gce-root
2020/07/20 13:14 linux-next ab8be66e724e 4285ffa3 .config console log report ci-upstream-linux-next-kasan-gce-root
* Struck through repros no longer work on HEAD.