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| Kernel | Title | Rank 🛈 | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
|---|---|---|---|---|---|---|---|---|---|---|
| upstream | INFO: task hung in ieee80211_unregister_hw (2) wireless | 1 | 76 | 82d | 348d | 0/29 | auto-obsoleted due to no activity on 2025/09/05 20:26 | |||
| upstream | INFO: task hung in ieee80211_unregister_hw wireless | 1 | 151 | 439d | 475d | 26/29 | fixed on 2024/07/09 19:14 |
INFO: task kworker/u4:2:154 blocked for more than 143 seconds.
Not tainted 5.15.160-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u4:2 state:D stack:21144 pid: 154 ppid: 2 flags:0x00004000
Workqueue: netns cleanup_net
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5030 [inline]
__schedule+0x12c4/0x45b0 kernel/sched/core.c:6376
schedule+0x11b/0x1f0 kernel/sched/core.c:6459
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6518
__mutex_lock_common+0xe34/0x25a0 kernel/locking/mutex.c:669
__mutex_lock kernel/locking/mutex.c:729 [inline]
mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:743
ieee80211_unregister_hw+0x4d/0x220 net/mac80211/main.c:1383
mac80211_hwsim_del_radio+0x2bb/0x4a0 drivers/net/wireless/mac80211_hwsim.c:3473
hwsim_exit_net+0x5b8/0x660 drivers/net/wireless/mac80211_hwsim.c:4243
ops_exit_list net/core/net_namespace.c:172 [inline]
cleanup_net+0x6ce/0xb60 net/core/net_namespace.c:599
process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2310
worker_thread+0xaca/0x1280 kernel/workqueue.c:2457
kthread+0x3f6/0x4f0 kernel/kthread.c:334
| Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024/06/11 08:31 | linux-5.15.y | c61bd26ae81a | b7d9eb04 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | INFO: task hung in ieee80211_unregister_hw |