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INFO: task hung in tipc_net_stop (3)

Status: auto-obsoleted due to no activity on 2024/09/17 17:37
Subsystems: tipc
[Documentation on labels]
First crash: 246d, last: 234d
Similar bugs (3)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream INFO: task hung in tipc_net_stop (4) tipc 5 118d 132d 0/28 auto-obsoleted due to no activity on 2025/01/11 12:41
upstream INFO: task hung in tipc_net_stop (2) tipc 2 1207d 1208d 0/28 auto-closed as invalid on 2022/01/18 04:55
upstream INFO: task hung in tipc_net_stop net 1 2023d 2022d 0/28 closed as invalid on 2019/10/23 07:54

Sample crash report:
INFO: task kworker/u8:6:2398 blocked for more than 143 seconds.
      Not tainted 6.10.0-rc2-syzkaller-00228-gc44711b78608 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u8:6    state:D stack:21384 pid:2398  tgid:2398  ppid:2      flags:0x00004000
Workqueue: netns cleanup_net
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5408 [inline]
 __schedule+0x17e8/0x4a20 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
 tipc_net_stop+0x7f/0xf0 net/tipc/net.c:156
 tipc_exit_net+0x3d/0x140 net/tipc/core.c:112
 ops_exit_list net/core/net_namespace.c:173 [inline]
 cleanup_net+0x802/0xcc0 net/core/net_namespace.c:640
 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

Crashes (5):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/06/07 16:18 net c44711b78608 121701b6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: task hung in tipc_net_stop
2024/06/19 17:34 net-next 3ec8d7572a69 41b7e219 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: task hung in tipc_net_stop
2024/06/18 01:33 net-next 3ec8d7572a69 1f11cfd7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: task hung in tipc_net_stop
2024/06/11 02:27 net-next 2ba6d15786f6 048c640a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: task hung in tipc_net_stop
2024/06/11 12:10 linux-next a957267fa7e9 c7d7d815 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: task hung in tipc_net_stop
* Struck through repros no longer work on HEAD.