syzbot


INFO: task hung in mld_dad_work

Status: auto-obsoleted due to no activity on 2024/08/25 23:16
Subsystems: net
[Documentation on labels]
First crash: 261d, last: 261d

Sample crash report:
INFO: task kworker/0:5:5153 blocked for more than 143 seconds.
      Not tainted 6.10.0-rc1-syzkaller-00013-g2bfcfd584ff5 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:5     state:D stack:20784 pid:5153  tgid:5153  ppid:2      flags:0x00004000
Workqueue: mld mld_dad_work

Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5408 [inline]
 __schedule+0x1796/0x49d0 kernel/sched/core.c:6745
 __schedule_loop kernel/sched/core.c:6822 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6837
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894
 __mutex_lock_common kernel/locking/mutex.c:684 [inline]
 __mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752
 mld_dad_work+0x3c/0x500 net/ipv6/mcast.c:2258
 process_one_work kernel/workqueue.c:3231 [inline]
 process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3312
 worker_thread+0x86d/0xd70 kernel/workqueue.c:3393
 kthread+0x2f0/0x390 kernel/kthread.c:389
 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>
INFO: task kworker/u8:2:11696 blocked for more than 144 seconds.
      Not tainted 6.10.0-rc1-syzkaller-00013-g2bfcfd584ff5 #0

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/05/27 23:07 upstream 2bfcfd584ff5 f550015e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: task hung in mld_dad_work
* Struck through repros no longer work on HEAD.