syzbot


WARNING in io_sq_thread

Status: auto-obsoleted due to no activity on 2024/10/20 03:14
Subsystems: io-uring
[Documentation on labels]
Reported-by: syzbot+82e078bac56cae572bce@syzkaller.appspotmail.com
First crash: 122d, last: 122d
Discussions (1)
Title Replies (including bot) Last reply
[syzbot] [io-uring?] WARNING in io_sq_thread 1 (2) 2024/08/25 14:40

Sample crash report:
------------[ cut here ]------------
do not call blocking ops when !TASK_RUNNING; state=1 set at [<ffffffff816d32e6>] prepare_to_wait+0x186/0x210 kernel/sched/wait.c:237
WARNING: CPU: 1 PID: 5335 at kernel/sched/core.c:8556 __might_sleep+0xb9/0xe0 kernel/sched/core.c:8552
Modules linked in:
CPU: 1 UID: 0 PID: 5335 Comm: iou-sqp-5333 Not tainted 6.11.0-rc4-next-20240820-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:__might_sleep+0xb9/0xe0 kernel/sched/core.c:8552
Code: 9d 0e 01 90 42 80 3c 23 00 74 08 48 89 ef e8 3e 9d 97 00 48 8b 4d 00 48 c7 c7 c0 60 0a 8c 44 89 ee 48 89 ca e8 b8 01 f1 ff 90 <0f> 0b 90 90 eb b5 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 70 ff ff ff
RSP: 0018:ffffc900041e7968 EFLAGS: 00010246
RAX: 11f47f6d1cba3d00 RBX: 1ffff110040802ec RCX: ffff888020400000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffff888020401760 R08: ffffffff8155acc2 R09: fffffbfff1cfa354
R10: dffffc0000000000 R11: fffffbfff1cfa354 R12: dffffc0000000000
R13: 0000000000000001 R14: 0000000000000249 R15: ffffffff8c0ab880
FS:  00007ffbe99d66c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffed4fbfdec CR3: 0000000024c2c000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __mutex_lock_common kernel/locking/mutex.c:585 [inline]
 __mutex_lock+0xc1/0xd70 kernel/locking/mutex.c:752
 io_sq_thread+0x1310/0x1c40 io_uring/sqpoll.c:367
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/08/21 03:13 linux-next bb1b0acdcd66 9f0ab3fb .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in io_sq_thread
* Struck through repros no longer work on HEAD.