syzbot


INFO: task can't die in netdev_run_todo

Status: auto-obsoleted due to no activity on 2023/04/16 04:59
Subsystems: net
[Documentation on labels]
Reported-by: syzbot+22a310041c3467f85d12@syzkaller.appspotmail.com
First crash: 1403d, last: 1006d
Cause bisection: failed (error log, bisect log)
  
Discussions (1)
Title Replies (including bot) Last reply
INFO: task can't die in netdev_run_todo 0 (1) 2020/08/20 05:36
Similar bugs (5)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.19 INFO: task hung in netdev_run_todo (3) 15 590d 906d 0/1 auto-obsoleted due to no activity on 2023/03/07 08:19
linux-5.15 INFO: task hung in netdev_run_todo 1 236d 236d 0/3 auto-obsoleted due to no activity on 2024/02/04 09:09
upstream INFO: task hung in netdev_run_todo (2) staging wireguard usb C error 241 127d 1284d 0/27 auto-obsoleted due to no activity on 2024/05/05 22:51
linux-4.14 INFO: task hung in netdev_run_todo 1 584d 584d 0/1 auto-obsoleted due to no activity on 2023/03/13 17:45
linux-5.15 INFO: task hung in netdev_run_todo (2) 42 1d08h 30d 0/3 upstream: reported on 2024/05/20 16:49
Last patch testing requests (2)
Created Duration User Patch Repo Result
2023/04/16 04:40 18m retest repro linux-next OK log
2022/10/14 12:30 18m retest repro linux-next error OK

Sample crash report:
INFO: task syz-executor.1:8005 can't die for more than 143 seconds.
syz-executor.1  D25048  8005      1 0x00004004
Call Trace:
 context_switch kernel/sched/core.c:3778 [inline]
 __schedule+0x8e5/0x21e0 kernel/sched/core.c:4527
 schedule+0xd0/0x2a0 kernel/sched/core.c:4602
 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:4661
 __mutex_lock_common kernel/locking/mutex.c:1033 [inline]
 __mutex_lock+0x3e2/0x10e0 kernel/locking/mutex.c:1103
 netdev_run_todo+0x705/0xac0 net/core/dev.c:10104
 sit_exit_batch_net+0x4ad/0x6c0 net/ipv6/sit.c:1945

Crashes (2):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2020/08/16 05:28 linux-next 4993e4fe12af 424dd8e7 .config console log report syz ci-upstream-linux-next-kasan-gce-root
2021/09/17 06:25 linux-next 368847b165bb 5b989942 .config console log report info ci-upstream-linux-next-kasan-gce-root INFO: task can't die in netdev_run_todo
* Struck through repros no longer work on HEAD.