INFO: task hung in linkwatch

Date	Name	Commit	Repro	Result
2025/05/28	upstream (ToT)	1cbf99e47fef	C	Didn't crash

Date

Name

Commit

Repro

Result

2025/05/28

upstream (ToT)

1cbf99e47fef

Didn't crash

Kernel	Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
linux-5.15	INFO: task hung in linkwatch_event (2)				1	119d	119d	0/3	auto-obsoleted due to no activity on 2025/05/19 15:08
android-414	INFO: task hung in linkwatch_event	C			7	2030d	2250d	0/1	public: reported C repro on 2019/04/10 16:14
linux-4.14	INFO: task hung in linkwatch_event (2)				1	1051d	1051d	0/1	auto-obsoleted due to no activity on 2022/11/19 11:58
android-44	INFO: task hung in linkwatch_event				6	2466d	2611d	0/2	auto-closed as invalid on 2019/03/05 13:11
linux-5.15	INFO: task hung in linkwatch_event				84	217d	513d	0/3	auto-obsoleted due to no activity on 2025/01/11 00:55
upstream	INFO: task hung in linkwatch_event (4) net	C	done		3234	8h33m	315d	0/28	upstream: reported C repro on 2024/07/27 06:21
upstream	INFO: task hung in linkwatch_event net	C			82	2058d	2670d	0/28	closed as dup on 2018/02/14 15:33
linux-4.14	INFO: task hung in linkwatch_event				5	1734d	1861d	0/1	auto-closed as invalid on 2021/01/05 01:42
linux-4.19	INFO: task hung in linkwatch_event (2)	C		error	217	825d	1913d	0/1	upstream: reported C repro on 2020/03/11 20:12
upstream	INFO: task hung in linkwatch_event (2) net	C	done	done	1033	1139d	1865d	20/28	fixed on 2022/05/13 11:13
linux-4.19	INFO: task hung in linkwatch_event				3	2067d	2181d	0/1	auto-closed as invalid on 2020/02/07 01:11
upstream	INFO: task hung in linkwatch_event (3) net				1634	333d	928d	26/28	fixed on 2024/07/09 19:14
linux-4.14	INFO: task hung in linkwatch_event (3)				2	885d	886d	0/1	upstream: reported on 2023/01/03 10:49
android-49	INFO: task hung in linkwatch_event				13	2229d	2246d	0/3	auto-closed as invalid on 2019/10/25 08:50
linux-6.1	INFO: task hung in linkwatch_event (2)				32	268d	383d	0/3	auto-obsoleted due to no activity on 2024/11/21 00:32
linux-6.1	INFO: task hung in linkwatch_event				2	671d	787d	0/3	auto-obsoleted due to no activity on 2023/11/14 00:59
linux-6.1	INFO: task hung in linkwatch_event (3)				1	194d	194d	0/3	auto-obsoleted due to no activity on 2025/03/05 15:51

INFO: task kworker/u4:2:33 blocked for more than 145 seconds. Not tainted 6.1.140-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/u4:2 state:D stack:24288 pid:33 ppid:2 flags:0x00004000 Workqueue: events_unbound linkwatch_event Call Trace: <TASK> context_switch kernel/sched/core.c:5244 [inline] __schedule+0x10e9/0x40d0 kernel/sched/core.c:6561 schedule+0xb9/0x180 kernel/sched/core.c:6637 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6696 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0x555/0xaf0 kernel/locking/mutex.c:747 linkwatch_event+0xa/0x50 net/core/link_watch.c:263 process_one_work+0x898/0x1160 kernel/workqueue.c:2292

Crashes (6):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	VM info	Assets (help?)	Manager	Title
2025/06/02 23:24	linux-6.1.y	da3c5173c55f	b396b4bf	.config	console log	report		info	[disk image] [vmlinux] [kernel image]	ci2-linux-6-1-kasan-perf	INFO: task hung in linkwatch_event
2025/05/28 12:52	linux-6.1.y	da3c5173c55f	874a1386	.config	console log	report	syz / log		[disk image] [vmlinux] [kernel image]	ci2-linux-6-1-kasan	INFO: task hung in linkwatch_event
2025/05/28 02:37	linux-6.1.y	da3c5173c55f	874a1386	.config	console log	report		info	[disk image] [vmlinux] [kernel image]	ci2-linux-6-1-kasan-perf	INFO: task hung in linkwatch_event
2025/05/26 12:51	linux-6.1.y	da3c5173c55f	2d4582d0	.config	console log	report		info	[disk image] [vmlinux] [kernel image]	ci2-linux-6-1-kasan	INFO: task hung in linkwatch_event
2025/05/07 23:12	linux-6.1.y	ac7079a42ea5	dbf35fa1	.config	console log	report		info	[disk image] [vmlinux] [kernel image]	ci2-linux-6-1-kasan-perf	INFO: task hung in linkwatch_event
2025/03/13 04:55	linux-6.1.y	6ae7ac5c4251	1a5d9317	.config	console log	report		info	[disk image] [vmlinux] [kernel image]	ci2-linux-6-1-kasan	INFO: task hung in linkwatch_event

Crashes (6):

Assets (help?)