syzbot


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: 572d, last: 151d

Cause bisection: failed (bisect log)
similar bugs (4):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream INFO: task can't die in irqentry_exit 7 650d 669d 0/22 auto-closed as invalid on 2020/11/19 14:56
upstream INFO: task hung in tty_open 1 271d 271d 0/22 auto-closed as invalid on 2022/01/02 10:09
upstream INFO: task hung in tty_open (2) C error error 14 108d 146d 0/22 upstream: reported C repro on 2022/02/07 03:39
upstream INFO: task can't die in show_free_areas C error 11 149d 159d 0/22 upstream: reported C repro on 2022/01/24 13:23

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 (22):
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 2022/02/02 05:42 linux-next 6abab1b81b65 4ebb2798 .config log report info INFO: task can't die in irqentry_exit
ci-upstream-linux-next-kasan-gce-root 2022/01/31 10:52 linux-next 887a333c44eb 6b7c57fe .config log report info INFO: task can't die in irqentry_exit
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