syzbot


INFO: task hung in watchdog

Status: auto-obsoleted due to no activity on 2025/07/28 17:34
Subsystems: kernel
[Documentation on labels]
First crash: 123d, last: 123d

Sample crash report:
INFO: task syz.3.1468:11418 blocked for more than 143 seconds.
      Not tainted 6.15.0-rc4-syzkaller-00021-gca91b9500108 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Showing all locks held in the system:
5 locks held by kworker/u8:8/3495:

Kernel panic - not syncing: hung_task: blocked tasks
CPU: 1 UID: 0 PID: 31 Comm: khungtaskd Not tainted 6.15.0-rc4-syzkaller-00021-gca91b9500108 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x3d/0x1f0 lib/dump_stack.c:120
 panic+0x71c/0x800 kernel/panic.c:354
 check_hung_uninterruptible_tasks kernel/hung_task.c:278 [inline]
 watchdog+0xdeb/0x12c0 kernel/hung_task.c:437
 kthread+0x3c2/0x780 kernel/kthread.c:464
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Kernel Offset: disabled

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/04/29 17:33 upstream ca91b9500108 aeb6ec69 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: task hung in watchdog
* Struck through repros no longer work on HEAD.