syzbot


linux-next test error: WARNING in switch_mm_irqs_off

Status: upstream: reported on 2025/04/14 10:28
Subsystems: kernel
[Documentation on labels]
Reported-by: syzbot+c2537ce72a879a38113e@syzkaller.appspotmail.com
First crash: 32d, last: 10d
Discussions (1)
Title Replies (including bot) Last reply
[syzbot] [kernel?] linux-next test error: WARNING in switch_mm_irqs_off 6 (7) 2025/05/05 16:56

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 0 PID: 9 at arch/x86/mm/tlb.c:919 switch_mm_irqs_off+0x640/0x7c0 arch/x86/mm/tlb.c:918
Modules linked in:
CPU: 0 UID: 0 PID: 9 Comm: kworker/0:0 Not tainted 6.15.0-rc5-next-20250506-syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/29/2025
Workqueue: events once_deferred
RIP: 0010:switch_mm_irqs_off+0x640/0x7c0 arch/x86/mm/tlb.c:918
Code: 84 f4 fa ff ff 90 0f 0b 90 e9 eb fa ff ff 90 0f 0b 90 e9 84 fe ff ff 90 0f 0b 90 e9 18 fc ff ff 90 0f 0b 90 e9 cb fb ff ff 90 <0f> 0b 90 e9 df fb ff ff 89 c8 90 0f 0b 90 e9 3f fd ff ff 90 0f 0b
RSP: 0000:ffffc900000e7740 EFLAGS: 00010056
RAX: 0000000000000001 RBX: ffff888018470940 RCX: ffffffff816876dd
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff888018470940
RBP: ffffc900000e7810 R08: ffff888018470947 R09: 1ffff1100308e128
R10: dffffc0000000000 R11: ffffed100308e129 R12: 1ffff110033510ab
R13: ffffffff8ce27740 R14: ffff888019a88000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8881281a9000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff88823ffff000 CR3: 0000000018478000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 unuse_temporary_mm+0x9d/0x100 arch/x86/mm/tlb.c:1038
 __text_poke+0x52d/0x7f0 arch/x86/kernel/alternative.c:2214
 text_poke arch/x86/kernel/alternative.c:2257 [inline]
 smp_text_poke_batch_finish+0x213/0xe10 arch/x86/kernel/alternative.c:2565
 arch_jump_label_transform_apply+0x17/0x30 arch/x86/kernel/jump_label.c:146
 static_key_disable_cpuslocked+0x9b/0x160 kernel/jump_label.c:240
 static_key_disable+0x15/0x20 kernel/jump_label.c:248
 once_deferred+0x56/0x90 lib/once.c:20
 process_one_work kernel/workqueue.c:3238 [inline]
 process_scheduled_works+0x9f5/0x13f0 kernel/workqueue.c:3321
 worker_thread+0x772/0xba0 kernel/workqueue.c:3402
 kthread+0x5fd/0x770 kernel/kthread.c:464
 ret_from_fork+0x32/0x70 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

Crashes (27):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/05/07 00:29 linux-next 0a00723f4c2d 350f4ffc .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root linux-next test error: WARNING in switch_mm_irqs_off
2025/05/06 10:35 linux-next 0a00723f4c2d ae98e6b9 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root linux-next test error: WARNING in switch_mm_irqs_off
2025/05/06 03:17 linux-next 407f60a151df ae98e6b9 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root linux-next test error: WARNING in switch_mm_irqs_off
2025/05/05 14:11 linux-next 407f60a151df 6ca47dd8 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root linux-next test error: WARNING in switch_mm_irqs_off
2025/05/05 09:38 linux-next 407f60a151df b0714e37 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root linux-next test error: WARNING in switch_mm_irqs_off
2025/05/02 18:16 linux-next 37ff6e9a2ce3 b0714e37 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root linux-next test error: WARNING in switch_mm_irqs_off
2025/05/02 13:08 linux-next 37ff6e9a2ce3 2bfec9c0 .config console log report ci-upstream-linux-next-kasan-gce-root linux-next test error: WARNING in switch_mm_irqs_off
2025/05/02 10:29 linux-next 37ff6e9a2ce3 51b137cd .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root linux-next test error: WARNING in switch_mm_irqs_off
2025/05/01 15:30 linux-next 3e039dcc9c13 51b137cd .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root linux-next test error: WARNING in switch_mm_irqs_off
2025/05/01 10:34 linux-next 3e039dcc9c13 ce7952f4 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root linux-next test error: WARNING in switch_mm_irqs_off
2025/04/30 16:40 linux-next 8a2d53ce3c5f ce7952f4 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root linux-next test error: WARNING in switch_mm_irqs_off
2025/04/30 12:28 linux-next 8a2d53ce3c5f 85a5a23f .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root linux-next test error: WARNING in switch_mm_irqs_off
2025/04/30 04:29 linux-next 9d9096722447 85a5a23f .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root linux-next test error: WARNING in switch_mm_irqs_off
2025/04/29 09:51 linux-next 9d9096722447 aeb6ec69 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root linux-next test error: WARNING in switch_mm_irqs_off
2025/04/29 06:12 linux-next 33035b665157 aeb6ec69 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root linux-next test error: WARNING in switch_mm_irqs_off
2025/04/28 12:50 linux-next 33035b665157 c6b4fb39 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root linux-next test error: WARNING in switch_mm_irqs_off
2025/04/25 15:51 linux-next 393d0c54cae3 c6b4fb39 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root linux-next test error: WARNING in switch_mm_irqs_off
2025/04/25 02:55 linux-next 393d0c54cae3 e3715315 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root linux-next test error: WARNING in switch_mm_irqs_off
2025/04/24 09:37 linux-next 393d0c54cae3 9c80ffa0 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root linux-next test error: WARNING in switch_mm_irqs_off
2025/04/24 07:50 linux-next 393d0c54cae3 9882047a .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root linux-next test error: WARNING in switch_mm_irqs_off
2025/04/17 21:44 linux-next bc8aa6cdadcc 2a20f901 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root linux-next test error: WARNING in switch_mm_irqs_off
2025/04/17 09:55 linux-next bc8aa6cdadcc 2a6ededb .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root linux-next test error: WARNING in switch_mm_irqs_off
2025/04/17 08:23 linux-next bc8aa6cdadcc 23b969b7 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root linux-next test error: WARNING in switch_mm_irqs_off
2025/04/16 07:30 linux-next f660850bc246 23b969b7 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root linux-next test error: WARNING in switch_mm_irqs_off
2025/04/15 10:12 linux-next 5b37f7bfff3b 23b969b7 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root linux-next test error: WARNING in switch_mm_irqs_off
2025/04/15 07:37 linux-next 5b37f7bfff3b 0bd6db41 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root linux-next test error: WARNING in switch_mm_irqs_off
2025/04/14 07:55 linux-next b425262c07a6 0bd6db41 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root linux-next test error: WARNING in switch_mm_irqs_off
* Struck through repros no longer work on HEAD.