syzbot


INFO: task hung in vivid_stop_generating_vid_cap
Status: fixed on 2019/11/11 17:14
Reported-by: syzbot+06283a66a648cd073885@syzkaller.appspotmail.com
Fix commit: d65842f7126a media: vb2: add waiting_in_dqbuf flag
First crash: 1127d, last: 1123d

Cause bisection: introduced by (bisect log) :
commit f2fe89061d79706eca5c47e4efdc09bbc171e74a
Author: Helen Koike <helen.koike@collabora.com>
Date: Fri Apr 7 17:55:19 2017 +0000

  [media] vimc: Virtual Media Controller core, capture and sensor

Crash: INFO: task hung in vivid_stop_generating_vid_cap (log)
Repro: C syz .config

Fix bisection: fixed by (bisect log) :
commit d65842f7126aa1a87fb44b7c9980c12630ed4f33
Author: Hans Verkuil <hverkuil@xs4all.nl>
Date: Mon Nov 19 11:09:00 2018 +0000

  media: vb2: add waiting_in_dqbuf flag

similar bugs (2):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.14 INFO: task hung in vivid_stop_generating_vid_cap C error 315 639d 962d 0/1 upstream: reported C repro on 2019/04/11 12:40
linux-4.19 INFO: task hung in vivid_stop_generating_vid_cap C done 291 729d 963d 1/1 fixed on 2019/12/31 04:23
Patch testing requests:
Created Duration User Patch Repo Result
2019/08/16 10:19 13m hverkuil@xs4all.nl patch git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git master report log
2019/08/15 18:53 18m hverkuil@xs4all.nl patch git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git master OK
2019/08/15 13:26 19m hverkuil@xs4all.nl patch git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git master OK
2019/08/15 12:37 0m hverkuil@xs4all.nl patch git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git master error

Sample crash report:

Crashes (81):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce 2018/11/01 13:19 upstream 59fc453b21f7 1f38e9ae .config log report syz C
ci-upstream-kasan-gce-root 2018/11/01 10:14 upstream 59fc453b21f7 1f38e9ae .config log report syz C
ci-upstream-kasan-gce-selinux-root 2018/11/01 10:09 upstream 59fc453b21f7 1f38e9ae .config log report syz C
ci-upstream-kasan-gce-selinux-root 2018/11/01 09:07 upstream 59fc453b21f7 1f38e9ae .config log report syz C
ci-upstream-kasan-gce-selinux-root 2018/11/01 07:23 upstream 59fc453b21f7 1f38e9ae .config log report syz C
ci-upstream-kasan-gce-root 2018/11/01 06:17 upstream 59fc453b21f7 1f38e9ae .config log report syz C
ci-upstream-kasan-gce-selinux-root 2018/11/01 05:30 upstream 59fc453b21f7 1f38e9ae .config log report syz C
ci-upstream-kasan-gce-root 2018/11/01 03:17 upstream 59fc453b21f7 1f38e9ae .config log report syz C
ci-upstream-kasan-gce-smack-root 2018/10/31 23:35 upstream 59fc453b21f7 89781090 .config log report syz C
ci-upstream-kasan-gce 2018/10/31 23:14 upstream 59fc453b21f7 89781090 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2018/10/31 22:50 upstream 59fc453b21f7 89781090 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2018/10/31 21:54 upstream 59fc453b21f7 89781090 .config log report syz C
ci-upstream-kasan-gce-smack-root 2018/10/31 21:48 upstream 59fc453b21f7 89781090 .config log report syz C
ci-upstream-kasan-gce 2018/10/31 21:34 upstream 59fc453b21f7 89781090 .config log report syz C
ci-upstream-kasan-gce-smack-root 2018/10/31 17:15 upstream 310c7585e830 89781090 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2018/10/31 11:57 upstream 310c7585e830 4ccf7bb4 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2018/10/31 10:24 upstream 310c7585e830 4ccf7bb4 .config log report syz C
ci-upstream-kasan-gce 2018/10/31 09:25 upstream 310c7585e830 4ccf7bb4 .config log report syz C
ci-upstream-kasan-gce 2018/10/31 07:25 upstream 310c7585e830 4ccf7bb4 .config log report syz C
ci-upstream-kasan-gce 2018/10/31 05:53 upstream 310c7585e830 4ccf7bb4 .config log report syz C
ci-upstream-kasan-gce 2018/10/31 04:48 upstream 310c7585e830 4ccf7bb4 .config log report syz C
ci-upstream-kasan-gce-smack-root 2018/10/31 04:02 upstream 310c7585e830 4ccf7bb4 .config log report syz C
ci-upstream-kasan-gce-smack-root 2018/10/30 05:50 upstream 4b42745211af 2f1090da .config log report syz C
ci-upstream-kasan-gce-smack-root 2018/10/30 04:34 upstream 4b42745211af 2f1090da .config log report syz C
ci-upstream-kasan-gce 2018/10/29 21:06 upstream 9f51ae62c84a 7df9db2e .config log report syz C
ci-upstream-kasan-gce-root 2018/10/29 16:21 upstream 9f51ae62c84a 7df9db2e .config log report syz C
ci-upstream-kasan-gce-386 2018/11/01 14:06 upstream 59fc453b21f7 1f38e9ae .config log report syz C
ci-upstream-kasan-gce-386 2018/11/01 12:26 upstream 59fc453b21f7 1f38e9ae .config log report syz C
ci-upstream-kasan-gce-386 2018/11/01 06:32 upstream 59fc453b21f7 1f38e9ae .config log report syz C
ci-upstream-kasan-gce-386 2018/10/31 18:30 upstream 310c7585e830 89781090 .config log report syz C
ci-upstream-kasan-gce-386 2018/10/30 17:37 upstream 11743c56785c 8dbb755a .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2018/10/31 10:28 linux-next c39eb210d7a0 4ccf7bb4 .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2018/10/31 09:12 linux-next c39eb210d7a0 4ccf7bb4 .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2018/10/31 08:18 linux-next c39eb210d7a0 4ccf7bb4 .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2018/10/29 22:55 linux-next b179f0826c6a 7df9db2e .config log report syz C
ci-upstream-kasan-gce 2018/10/31 18:16 upstream 59fc453b21f7 89781090 .config log report
ci-upstream-kasan-gce-smack-root 2018/10/31 13:01 upstream 310c7585e830 89781090 .config log report
ci-upstream-kasan-gce 2018/10/31 06:52 upstream 310c7585e830 4ccf7bb4 .config log report
ci-upstream-kasan-gce-smack-root 2018/10/31 03:01 upstream 310c7585e830 4ccf7bb4 .config log report
ci-upstream-kasan-gce-smack-root 2018/10/31 01:22 upstream 310c7585e830 4ccf7bb4 .config log report
ci-upstream-kasan-gce-smack-root 2018/10/31 01:18 upstream 310c7585e830 4ccf7bb4 .config log report
ci-upstream-kasan-gce-root 2018/10/30 19:07 upstream 11743c56785c 8dbb755a .config log report
ci-upstream-kasan-gce-selinux-root 2018/10/30 18:46 upstream 11743c56785c 8dbb755a .config log report
ci-upstream-kasan-gce 2018/10/30 18:14 upstream 11743c56785c 8dbb755a .config log report
ci-upstream-kasan-gce-selinux-root 2018/10/30 14:17 upstream 11743c56785c 8dbb755a .config log report
ci-upstream-kasan-gce-smack-root 2018/10/30 13:46 upstream 11743c56785c 8dbb755a .config log report
ci-upstream-kasan-gce-root 2018/10/30 12:57 upstream 11743c56785c 8dbb755a .config log report
ci-upstream-kasan-gce-smack-root 2018/10/30 10:12 upstream 4b42745211af 2f1090da .config log report
ci-upstream-kasan-gce-smack-root 2018/10/30 01:41 upstream 4b42745211af 2f1090da .config log report
ci-upstream-kasan-gce 2018/10/29 21:16 upstream 9f51ae62c84a 7df9db2e .config log report
ci-upstream-kasan-gce 2018/10/29 18:18 upstream 9f51ae62c84a 7df9db2e .config log report
ci-upstream-kasan-gce-selinux-root 2018/10/29 15:11 upstream 9f51ae62c84a 7df9db2e .config log report
ci-upstream-kasan-gce-smack-root 2018/10/29 14:20 upstream 9f51ae62c84a 7df9db2e .config log report
ci-upstream-kasan-gce-root 2018/10/29 14:16 upstream 9f51ae62c84a 7df9db2e .config log report
ci-upstream-kasan-gce 2018/10/29 14:08 upstream 9f51ae62c84a 7df9db2e .config log report
ci-upstream-kasan-gce-selinux-root 2018/10/29 14:08 upstream 9f51ae62c84a 7df9db2e .config log report
ci-upstream-kasan-gce-386 2018/10/31 02:42 upstream 310c7585e830 4ccf7bb4 .config log report
ci-upstream-kasan-gce-386 2018/10/30 19:05 upstream 11743c56785c 8dbb755a .config log report
ci-upstream-kasan-gce-386 2018/10/30 02:34 upstream 4b42745211af 2f1090da .config log report
ci-upstream-linux-next-kasan-gce-root 2018/11/01 01:04 linux-next c39eb210d7a0 1f38e9ae .config log report
ci-upstream-linux-next-kasan-gce-root 2018/10/31 05:54 linux-next c39eb210d7a0 4ccf7bb4 .config log report
ci-upstream-linux-next-kasan-gce-root 2018/10/31 03:01 linux-next 6201f31a39f8 4ccf7bb4 .config log report
ci-upstream-linux-next-kasan-gce-root 2018/10/30 23:07 linux-next 6201f31a39f8 8dbb755a .config log report
ci-upstream-linux-next-kasan-gce-root 2018/10/30 18:20 linux-next 6201f31a39f8 8dbb755a .config log report
ci-upstream-linux-next-kasan-gce-root 2018/10/30 05:43 linux-next 6201f31a39f8 2f1090da .config log report
ci-upstream-linux-next-kasan-gce-root 2018/10/29 14:17 linux-next b179f0826c6a 7df9db2e .config log report
ci-upstream-linux-next-kasan-gce-root 2018/10/29 07:04 linux-next 8c60c36d0b8c 9ca2afa1 .config log report
ci-upstream-linux-next-kasan-gce-root 2018/10/29 02:54 linux-next 8c60c36d0b8c 9ca2afa1 .config log report