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INFO: task hung in ieee80211_register_hw

Status: auto-obsoleted due to no activity on 2023/01/18 17:32
Reported-by: syzbot+01ed4b3d79edbfc89599@syzkaller.appspotmail.com
First crash: 582d, last: 582d
▶ ▼ Similar bugs (5)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream INFO: task hung in ieee80211_register_hw (2) wireless 2 813d 872d 0/26 closed as invalid on 2022/02/08 09:40
upstream INFO: task hung in ieee80211_register_hw (5) wireless 1 99d 99d 0/26 auto-obsoleted due to no activity on 2024/04/15 01:54
upstream INFO: task hung in ieee80211_register_hw (3) wireless 1 781d 781d 0/26 auto-closed as invalid on 2022/06/03 18:58
upstream INFO: task hung in ieee80211_register_hw (4) wireless 1 268d 268d 0/26 auto-obsoleted due to no activity on 2023/10/29 15:52
upstream INFO: task hung in ieee80211_register_hw wireless 1 1498d 1498d 0/26 auto-closed as invalid on 2020/06/15 23:33

Sample crash report:
Bluetooth: hci6: command 0x041b tx timeout
Bluetooth: hci9: command 0x041b tx timeout
Bluetooth: hci8: command 0x040f tx timeout
Bluetooth: hci10: command 0x041b tx timeout
Bluetooth: hci7: command 0x040f tx timeout
INFO: task syz-executor.2:26367 blocked for more than 140 seconds.
      Not tainted 4.19.211-syzkaller #0
Bluetooth: hci6: command 0x040f tx timeout
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.2  D24512 26367   8158 0x00000004
Bluetooth: hci8: command 0x0419 tx timeout
Bluetooth: hci9: command 0x040f tx timeout
Call Trace:
 context_switch kernel/sched/core.c:2828 [inline]
 __schedule+0x887/0x2040 kernel/sched/core.c:3517
Bluetooth: hci10: command 0x040f tx timeout
Bluetooth: hci7: command 0x0419 tx timeout
Bluetooth: hci6: command 0x0419 tx timeout
 schedule+0x8d/0x1b0 kernel/sched/core.c:3561
 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:3619
Bluetooth: hci9: command 0x0419 tx timeout
Bluetooth: hci10: command 0x0419 tx timeout
 __mutex_lock_common kernel/locking/mutex.c:1016 [inline]
 __mutex_lock+0x5f0/0x1190 kernel/locking/mutex.c:1078
 ieee80211_register_hw+0x170a/0x3550 net/mac80211/main.c:1161

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2022/09/20 17:31 linux-4.19.y 3f8a27f9e27b c4b8ccfd .config console log report info [disk image] [vmlinux] ci2-linux-4-19 INFO: task hung in ieee80211_register_hw
* Struck through repros no longer work on HEAD.