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| Kernel | Title | Rank 🛈 | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
|---|---|---|---|---|---|---|---|---|---|---|
| upstream | INFO: task hung in snd_card_free (2) kernel | 1 | 1 | 169d | 169d | 0/29 | auto-obsoleted due to no activity on 2025/08/05 21:05 | |||
| upstream | INFO: task hung in snd_card_free sound | 1 | C | error | 24 | 339d | 355d | 28/29 | fixed on 2024/12/16 09:50 |
INFO: task kworker/0:5:3618 blocked for more than 143 seconds.
Not tainted 6.1.93-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:5 state:D stack:22680 pid:3618 ppid:2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
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_timeout+0xac/0x300 kernel/time/timer.c:1941
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common kernel/sched/completion.c:106 [inline]
wait_for_common kernel/sched/completion.c:117 [inline]
wait_for_completion+0x350/0x610 kernel/sched/completion.c:138
snd_card_free+0x13f/0x1b0 sound/core/init.c:670
usb_unbind_interface+0x1cd/0x840 drivers/usb/core/driver.c:458
device_remove drivers/base/dd.c:550 [inline]
__device_release_driver drivers/base/dd.c:1260 [inline]
device_release_driver_internal+0x59e/0x880 drivers/base/dd.c:1286
bus_remove_device+0x2e5/0x400 drivers/base/bus.c:529
device_del+0x6e2/0xbd0 drivers/base/core.c:3874
usb_disable_device+0x3b8/0x840 drivers/usb/core/message.c:1414
usb_disconnect+0x33c/0x8c0 drivers/usb/core/hub.c:2275
hub_port_connect drivers/usb/core/hub.c:5321 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5617 [inline]
port_event drivers/usb/core/hub.c:5773 [inline]
hub_event+0x1f78/0x5730 drivers/usb/core/hub.c:5855
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 syz-executor.1:9114 blocked for more than 143 seconds.
Not tainted 6.1.93-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:27320 pid:9114 ppid:3570 flags:0x00004006
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
| Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024/06/12 17:43 | linux-6.1.y | ae9f2a70d69e | f815599d | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in snd_card_free |