INFO: task can't die in irqentry

INFO: task can't die in irqentry_exit (2)
Status: upstream: reported C repro on 2020/12/13 03:25
Reported-by: syzbot+b3c4057ecb552e754f4a@syzkaller.appspotmail.com
First crash: 417d, last: 45d

Cause bisection: failed (bisect log)

similar bugs (1):
Kernel	Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
upstream	INFO: task can't die in irqentry_exit				7	495d	514d	0/22	auto-closed as invalid on 2020/11/19 14:56

Sample crash report:

INFO: task syz-executor626:9832 can't die for more than 143 seconds.
task:syz-executor626 state:R  running task     stack:24208 pid: 9832 ppid:  8449 flags:0x00004006
Call Trace:
 context_switch kernel/sched/core.c:4688 [inline]
 __schedule+0xb38/0x58c0 kernel/sched/core.c:5945
 preempt_schedule_irq+0x4e/0x90 kernel/sched/core.c:6333
 irqentry_exit+0x31/0x80 kernel/entry/common.c:426
INFO: task syz-executor626:9855 can't die for more than 149 seconds.
task:syz-executor626 state:R  running task     stack:24192 pid: 9855 ppid:  8445 flags:0x00004006
Call Trace:
 context_switch kernel/sched/core.c:4688 [inline]
 __schedule+0xb38/0x58c0 kernel/sched/core.c:5945

Crashes (20):
Manager	Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Title
ci-upstream-linux-next-kasan-gce-root	2021/06/07 23:14	linux-next	a1f92694393a	e59537be	.config	log	report	syz	C		INFO: task can't die in irqentry_exit
ci-upstream-linux-next-kasan-gce-root	2020/12/22 10:35	linux-next	6c3eb1b174c0	04201c06	.config	log	report	syz	C
ci-upstream-linux-next-kasan-gce-root	2020/12/13 03:24	linux-next	14240d4c5b25	bca53db9	.config	log	report	syz	C
ci-upstream-linux-next-kasan-gce-root	2021/12/14 02:33	linux-next	ea922272cbe5	5d14b1ea	.config	log	report			info	INFO: task can't die in irqentry_exit
ci-upstream-linux-next-kasan-gce-root	2021/12/10 18:55	linux-next	4eee8d0b64ec	49ca1f59	.config	log	report			info	INFO: task can't die in irqentry_exit
ci-upstream-linux-next-kasan-gce-root	2021/11/23 20:29	linux-next	aacdecce8147	545ab074	.config	log	report			info	INFO: task can't die in irqentry_exit
ci-upstream-linux-next-kasan-gce-root	2021/09/20 07:24	linux-next	9004fd387338	70b76c1d	.config	log	report			info	INFO: task can't die in irqentry_exit
ci-upstream-linux-next-kasan-gce-root	2021/09/18 19:48	linux-next	9004fd387338	70b76c1d	.config	log	report			info	INFO: task can't die in irqentry_exit
ci-upstream-linux-next-kasan-gce-root	2021/09/14 16:43	linux-next	815c5020b5ab	07e953c1	.config	log	report			info	INFO: task can't die in irqentry_exit
ci-upstream-linux-next-kasan-gce-root	2021/08/30 12:14	linux-next	93717cde744f	be2c130d	.config	log	report			info	INFO: task can't die in irqentry_exit
ci-upstream-linux-next-kasan-gce-root	2021/08/28 12:19	linux-next	5e63226c7228	be2c130d	.config	log	report			info	INFO: task can't die in irqentry_exit
ci-upstream-linux-next-kasan-gce-root	2021/08/20 04:24	linux-next	33e65b1f975c	b599f2fc	.config	log	report			info	INFO: task can't die in irqentry_exit
ci-upstream-linux-next-kasan-gce-root	2021/05/14 13:20	linux-next	cd557f1c605f	8bdd5343	.config	log	report			info	INFO: task can't die in irqentry_exit
ci-upstream-linux-next-kasan-gce-root	2021/03/29 19:34	linux-next	931294922e65	6a81331a	.config	log	report			info	INFO: task can't die in irqentry_exit
ci-upstream-linux-next-kasan-gce-root	2021/01/19 08:31	linux-next	b4bb878f3eb3	63631df1	.config	log	report			info	INFO: task can't die in irqentry_exit
ci-upstream-linux-next-kasan-gce-root	2021/01/18 13:55	linux-next	93bf8b946e5f	63631df1	.config	log	report			info	INFO: task can't die in irqentry_exit
ci-upstream-linux-next-kasan-gce-root	2021/01/05 16:28	linux-next	83dadd4cfb0c	a0234d98	.config	log	report			info
ci-upstream-linux-next-kasan-gce-root	2020/12/25 05:42	linux-next	d7a03a44a5e9	c2c1d1dd	.config	log	report			info
ci-upstream-linux-next-kasan-gce-root	2020/12/09 18:26	linux-next	a9e26cb5f261	c090b4da	.config	log	report			info
ci-upstream-linux-next-kasan-gce-root	2020/12/07 23:40	linux-next	15ac8fdb7440	51a9082e	.config	log	report			info