INFO: task hung in _free

Kernel	Title	Rank 🛈	Repro	Fix bisect	Count	Last	Reported	Patched	Status
upstream	INFO: task hung in _free_event perf	1	C		2	333d	356d	28/29	fixed on 2025/06/10 16:19
android-414	INFO: task hung in _free_event	1			8	2327d	2394d	0/1	auto-closed as invalid on 2019/10/26 01:49
linux-6.1	INFO: task hung in _free_event origin:lts-only	1	C	inconclusive	579	1h35m	434d	0/3	upstream: reported C repro on 2024/09/01 12:31
linux-5.15	INFO: task hung in _free_event	1			1	22h37m	22h36m	0/3	upstream: reported on 2025/11/09 04:01
linux-4.14	INFO: task hung in _free_event	1			1	1884d	1884d	0/1	auto-closed as invalid on 2021/01/10 07:54
linux-6.6	INFO: task hung in _free_event origin:lts-only	1	C	inconclusive	148	3d09h	146d	0/2	upstream: reported C repro on 2025/06/16 19:30

FAT-fs (loop4): error, fat_free_clusters: deleting FAT entry beyond EOF FAT-fs (loop4): Filesystem has been set read-only INFO: task syz-executor.5:12588 blocked for more than 140 seconds. Not tainted 4.19.121-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.5 D28232 12588 6911 0x80000002 Call Trace: schedule+0x8d/0x1b0 kernel/sched/core.c:3559 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:3617 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0x726/0x1300 kernel/locking/mutex.c:1072 perf_trace_destroy+0x23/0xf0 kernel/trace/trace_event_perf.c:236 _free_event+0x33b/0x1170 kernel/events/core.c:4454