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| Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
|---|---|---|---|---|---|---|---|---|---|
| linux-4.19 | INFO: task hung in kernfs_remove | 1 | 1950d | 1950d | 0/1 | auto-closed as invalid on 2020/03/15 06:19 | |||
| android-414 | INFO: task hung in kernfs_remove | 1 | 2207d | 2166d | 0/1 | auto-closed as invalid on 2019/08/31 16:46 | |||
| upstream | INFO: task hung in kernfs_remove (2) kernfs | 2 | 168d | 179d | 0/28 | auto-obsoleted due to no activity on 2024/12/31 03:21 |
INFO: task kworker/0:2:929 blocked for more than 143 seconds.
Not tainted 6.10.0-rc1-syzkaller-00027-g4a4be1ad3a6e #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:2 state:D
stack:21624 pid:929 tgid:929 ppid:2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5408 [inline]
__schedule+0x17e8/0x4a20 kernel/sched/core.c:6745
__schedule_loop kernel/sched/core.c:6822 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6837
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894
rwsem_down_write_slowpath+0xeeb/0x13b0 kernel/locking/rwsem.c:1178
__down_write_common+0x1af/0x200 kernel/locking/rwsem.c:1306
kernfs_remove+0x72/0xa0 fs/kernfs/dir.c:1527
__kobject_del+0xe2/0x310 lib/kobject.c:604
kobject_del+0x45/0x60 lib/kobject.c:627
device_del+0x7ff/0x9b0 drivers/base/core.c:3930
usb_disable_device+0x3bf/0x850 drivers/usb/core/message.c:1418
usb_disconnect+0x340/0x950 drivers/usb/core/hub.c:2304
hub_port_connect drivers/usb/core/hub.c:5361 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5661 [inline]
port_event drivers/usb/core/hub.c:5821 [inline]
hub_event+0x1eb9/0x5150 drivers/usb/core/hub.c:5903
process_one_work kernel/workqueue.c:3231 [inline]
process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3312
worker_thread+0x86d/0xd70 kernel/workqueue.c:3393
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
</TASK>
INFO: task udevd:4543 blocked for more than 144 seconds.
Not tainted 6.10.0-rc1-syzkaller-00027-g4a4be1ad3a6e #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd state:D
stack:23568 pid:4543 tgid:4543 ppid:1 flags:0x00000002
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5408 [inline]
__schedule+0x17e8/0x4a20 kernel/sched/core.c:6745
__schedule_loop kernel/sched/core.c:6822 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6837
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894
rwsem_down_read_slowpath kernel/locking/rwsem.c:1086 [inline]
__down_read_common kernel/locking/rwsem.c:1250 [inline]
__down_read kernel/locking/rwsem.c:1263 [inline]
down_read+0x705/0xa40 kernel/locking/rwsem.c:1528
| Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024/05/30 05:20 | upstream | 4a4be1ad3a6e | 34889ee3 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-kasan-gce | INFO: task hung in kernfs_remove | ||
| 2024/05/31 15:23 | https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing | 1613e604df0c | 0c378259 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-usb | INFO: task hung in kernfs_remove |