syzbot


INFO: task hung in io_sq_thread_park
Status: fixed on 2021/04/09 19:46
Reported-by: syzbot+fb5458330b4442f2090d@syzkaller.appspotmail.com
Fix commit: 3ebba796fa25 io_uring: ensure that SQPOLL thread is started for exit
First crash: 287d, last: 278d

Cause bisection: introduced by (bisect log) [merge commit]:
commit 8075fc3b113dee1531106aaec3dfa19c8158374d
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date: Fri Sep 4 20:04:51 2020 +0000

  Merge tag 'block-5.9-2020-09-04' of git://git.kernel.dk/linux-block

Crash: SYZFAIL: wrong response packet (log)
Repro: C syz .config
similar bugs (2):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream INFO: task hung in io_sq_thread_park (3) 1 6d10h 5d20h 0/22 upstream: reported on 2021/12/03 08:37
upstream INFO: task hung in io_sq_thread_park (2) syz done 2 151d 147d 22/22 fixed on 2021/11/10 00:50

Sample crash report:

Crashes (263):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-linux-next-kasan-gce-root 2021/02/27 18:18 linux-next d01f2f7e3557 4c37c133 .config log report syz C INFO: task hung in io_sq_thread_park
ci-upstream-linux-next-kasan-gce-root 2021/02/26 22:21 linux-next d01f2f7e3557 4c37c133 .config log report syz C INFO: task hung in io_sq_thread_park
ci-upstream-kasan-gce-selinux-root 2021/03/05 18:46 upstream 280d542f6ffa 9d751681 .config log report info INFO: task hung in io_sq_thread_park
ci-upstream-kasan-gce-root 2021/03/05 16:45 upstream 280d542f6ffa 9d751681 .config log report info INFO: task hung in io_sq_thread_park
ci-upstream-kasan-gce-root 2021/03/05 11:42 upstream cee407c5cc42 9d751681 .config log report info INFO: task hung in io_sq_thread_park
ci-upstream-kasan-gce-root 2021/03/05 09:18 upstream cee407c5cc42 9d751681 .config log report info INFO: task hung in io_sq_thread_park
ci-upstream-kasan-gce-selinux-root 2021/03/05 08:02 upstream cee407c5cc42 9d751681 .config log report info INFO: task hung in io_sq_thread_park
ci-upstream-kasan-gce-selinux-root 2021/03/05 06:58 upstream cee407c5cc42 9d751681 .config log report info INFO: task hung in io_sq_thread_park
ci-upstream-kasan-gce-root 2021/03/05 02:55 upstream cee407c5cc42 9d751681 .config log report info INFO: task hung in io_sq_thread_park
ci-upstream-kasan-gce-selinux-root 2021/03/04 18:57 upstream f69d02e37a85 d7e4e604 .config log report info INFO: task hung in io_sq_thread_park
ci-upstream-kasan-gce-selinux-root 2021/03/04 17:02 upstream f69d02e37a85 d7e4e604 .config log report info INFO: task hung in io_sq_thread_park
ci-upstream-kasan-gce-root 2021/03/04 16:45 upstream f69d02e37a85 d7e4e604 .config log report info INFO: task hung in io_sq_thread_park
ci-upstream-kasan-gce-selinux-root 2021/03/04 15:42 upstream f69d02e37a85 d7e4e604 .config log report info INFO: task hung in io_sq_thread_park
ci-upstream-kasan-gce-root 2021/03/04 14:14 upstream f69d02e37a85 d7e4e604 .config log report info INFO: task hung in io_sq_thread_park
ci-upstream-kasan-gce-root 2021/03/04 13:14 upstream f69d02e37a85 d7e4e604 .config log report info INFO: task hung in io_sq_thread_park
ci-upstream-kasan-gce-root 2021/03/04 12:13 upstream f69d02e37a85 d7e4e604 .config log report info INFO: task hung in io_sq_thread_park
ci-upstream-kasan-gce-root 2021/03/04 04:12 upstream f69d02e37a85 06ed56cd .config log report info INFO: task hung in io_sq_thread_park
ci-upstream-kasan-gce-selinux-root 2021/03/04 02:39 upstream f69d02e37a85 06ed56cd .config log report info INFO: task hung in io_sq_thread_park
ci-upstream-kasan-gce-selinux-root 2021/03/04 01:38 upstream f69d02e37a85 06ed56cd .config log report info INFO: task hung in io_sq_thread_park
ci-upstream-kasan-gce-selinux-root 2021/03/04 00:46 upstream f69d02e37a85 06ed56cd .config log report info INFO: task hung in io_sq_thread_park
ci-upstream-kasan-gce-selinux-root 2021/03/03 23:35 upstream f69d02e37a85 06ed56cd .config log report info INFO: task hung in io_sq_thread_park
ci-upstream-kasan-gce-selinux-root 2021/03/03 21:49 upstream f69d02e37a85 06ed56cd .config log report info INFO: task hung in io_sq_thread_park
ci-upstream-kasan-gce-root 2021/03/03 09:25 upstream 7a7fd0de4a98 e5b64d68 .config log report info INFO: task hung in io_sq_thread_park
ci-upstream-kasan-gce-selinux-root 2021/03/03 07:09 upstream 7a7fd0de4a98 e5b64d68 .config log report info INFO: task hung in io_sq_thread_park
ci-upstream-kasan-gce-root 2021/03/03 04:43 upstream 7a7fd0de4a98 e5b64d68 .config log report info INFO: task hung in io_sq_thread_park
ci-upstream-kasan-gce-selinux-root 2021/03/02 21:33 upstream 7a7fd0de4a98 92ead296 .config log report info INFO: task hung in io_sq_thread_park
ci-upstream-kasan-gce-root 2021/03/02 20:07 upstream 7a7fd0de4a98 92ead296 .config log report info INFO: task hung in io_sq_thread_park
ci-upstream-kasan-gce-selinux-root 2021/03/02 19:09 upstream 7a7fd0de4a98 92ead296 .config log report info INFO: task hung in io_sq_thread_park
ci-upstream-kasan-gce-selinux-root 2021/03/02 17:11 upstream 7a7fd0de4a98 92ead296 .config log report info INFO: task hung in io_sq_thread_park
ci-upstream-kasan-gce-selinux-root 2021/03/02 16:07 upstream 7a7fd0de4a98 92ead296 .config log report info INFO: task hung in io_sq_thread_park
ci-upstream-kasan-gce-root 2021/03/02 15:05 upstream 7a7fd0de4a98 92ead296 .config log report info INFO: task hung in io_sq_thread_park
ci-upstream-kasan-gce-selinux-root 2021/03/02 07:01 upstream fe07bfda2fb9 183afb6c .config log report info INFO: task hung in io_sq_thread_park
ci-upstream-kasan-gce-selinux-root 2021/03/02 04:01 upstream fe07bfda2fb9 183afb6c .config log report info INFO: task hung in io_sq_thread_park
ci-upstream-kasan-gce-root 2021/03/02 03:34 upstream 7a7fd0de4a98 183afb6c .config log report info INFO: task hung in io_sq_thread_park
ci-upstream-kasan-gce-root 2021/03/02 02:01 upstream 7a7fd0de4a98 183afb6c .config log report info INFO: task hung in io_sq_thread_park
ci-upstream-kasan-gce-selinux-root 2021/03/01 23:41 upstream fe07bfda2fb9 183afb6c .config log report info INFO: task hung in io_sq_thread_park
ci-upstream-kasan-gce-selinux-root 2021/03/01 13:23 upstream cd278456d4ca 4c37c133 .config log report info INFO: task hung in io_sq_thread_park
ci-upstream-kasan-gce-root 2021/03/01 10:51 upstream cd278456d4ca 4c37c133 .config log report info INFO: task hung in io_sq_thread_park
ci-upstream-kasan-gce-selinux-root 2021/03/01 09:59 upstream cd278456d4ca 4c37c133 .config log report info INFO: task hung in io_sq_thread_park
ci-upstream-kasan-gce-root 2021/03/01 08:31 upstream cd278456d4ca 4c37c133 .config log report info INFO: task hung in io_sq_thread_park
ci-upstream-kasan-gce-selinux-root 2021/03/01 06:11 upstream cd278456d4ca 4c37c133 .config log report info INFO: task hung in io_sq_thread_park
ci-upstream-linux-next-kasan-gce-root 2021/03/02 00:43 linux-next 26ada2d1f143 183afb6c .config log report info INFO: task hung in io_sq_thread_park
ci-upstream-linux-next-kasan-gce-root 2021/03/01 22:37 linux-next 26ada2d1f143 183afb6c .config log report info INFO: task hung in io_sq_thread_park
ci-upstream-linux-next-kasan-gce-root 2021/03/01 22:24 linux-next 26ada2d1f143 183afb6c .config log report info INFO: task hung in io_sq_thread_park
ci-upstream-linux-next-kasan-gce-root 2021/03/01 17:55 linux-next 26ada2d1f143 4c37c133 .config log report info INFO: task hung in io_sq_thread_park
ci-upstream-linux-next-kasan-gce-root 2021/03/01 15:21 linux-next 26ada2d1f143 4c37c133 .config log report info INFO: task hung in io_sq_thread_park
ci-upstream-linux-next-kasan-gce-root 2021/03/01 12:19 linux-next 26ada2d1f143 4c37c133 .config log report info INFO: task hung in io_sq_thread_park
ci-upstream-linux-next-kasan-gce-root 2021/03/01 07:13 linux-next 26ada2d1f143 4c37c133 .config log report info INFO: task hung in io_sq_thread_park
ci-upstream-linux-next-kasan-gce-root 2021/02/24 20:42 linux-next 577c283560fe fcc6d71b .config log report info INFO: task hung in io_sq_thread_park
ci-upstream-linux-next-kasan-gce-root 2021/02/26 17:15 linux-next d01f2f7e3557 4c37c133 .config log report info INFO: task can't die in io_sq_thread_park