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| Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
|---|---|---|---|---|---|---|---|---|---|
| upstream | INFO: task hung in fib_net_exit_batch net | 2 | 1091d | 1093d | 0/29 | auto-closed as invalid on 2022/09/29 00:33 | |||
| upstream | INFO: task hung in fib_net_exit_batch (2) net | 19 | 119d | 397d | 0/29 | auto-obsoleted due to no activity on 2025/05/27 12:53 |
INFO: task kworker/u4:6:3686 blocked for more than 143 seconds.
Not tainted 6.1.94-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u4:6 state:D stack:21280 pid:3686 ppid:2 flags:0x00004000
Workqueue: netns cleanup_net
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5245 [inline]
__schedule+0x142d/0x4550 kernel/sched/core.c:6558
schedule+0xbf/0x180 kernel/sched/core.c:6634
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6693
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x6b9/0xd80 kernel/locking/mutex.c:747
fib_net_exit_batch+0x1c/0x90 net/ipv4/fib_frontend.c:1638
ops_exit_list net/core/net_namespace.c:177 [inline]
cleanup_net+0x763/0xb60 net/core/net_namespace.c:604
process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292
worker_thread+0xa47/0x1200 kernel/workqueue.c:2439
kthread+0x28d/0x320 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
</TASK>
INFO: task kworker/1:11:5127 blocked for more than 143 seconds.
Not tainted 6.1.94-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:11 state:D stack:24928 pid:5127 ppid:2 flags:0x00004000
Workqueue: ipv6_addrconf addrconf_dad_work
Call Trace:
<TASK>
| Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024/06/17 07:14 | linux-6.1.y | eb44d83053d6 | f429ab00 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in fib_net_exit_batch | ||
| 2024/06/16 14:51 | linux-6.1.y | eb44d83053d6 | f429ab00 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in fib_net_exit_batch | ||
| 2024/06/13 04:24 | linux-6.1.y | ae9f2a70d69e | 2aa5052f | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in fib_net_exit_batch | ||
| 2024/06/11 07:04 | linux-6.1.y | 88690811da69 | b7d9eb04 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in fib_net_exit_batch | ||
| 2024/06/10 18:42 | linux-6.1.y | 88690811da69 | 048c640a | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in fib_net_exit_batch | ||
| 2024/06/04 14:18 | linux-6.1.y | 88690811da69 | 11f2afa5 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in fib_net_exit_batch |