syzbot


INFO: task hung in __do_page_fault (2)
Status: upstream: reported C repro on 2018/10/27 08:09
Reported-by: syzbot+6b074f741adbd93d2df5@syzkaller.appspotmail.com
First crash: 1145d, last: 801d

Cause bisection: introduced by (bisect log) :
commit 0161028b7c8aebef64194d3d73e43bc3b53b5c66
Author: Andy Lutomirski <luto@kernel.org>
Date: Mon May 9 22:48:51 2016 +0000

  perf/core: Change the default paranoia level to 2

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

Fix bisection: failed (bisect log)
similar bugs (6):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
android-44 INFO: task hung in __do_page_fault C 1 975d 917d 0/2 public: reported C repro on 2019/04/14 00:00
linux-4.14 INFO: task hung in __do_page_fault C error 4 495d 911d 0/1 upstream: reported C repro on 2019/04/19 08:53
android-49 INFO: task hung in __do_page_fault C 5 743d 916d 0/3 public: reported C repro on 2019/04/14 08:51
linux-4.19 INFO: task hung in __do_page_fault C 6 25d 862d 0/1 upstream: reported C repro on 2019/06/08 06:01
android-414 INFO: task hung in __do_page_fault C 7 751d 919d 0/1 public: reported C repro on 2019/04/12 00:01
upstream INFO: task hung in __do_page_fault 1 1280d 1280d 6/22 fixed on 2018/05/17 10:02

Sample crash report:

Crashes (34):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-selinux-root 2019/08/07 10:26 upstream 33920f1ec5bf cdde7486 .config log report syz C
ci-upstream-kasan-gce-root 2019/08/07 09:33 upstream f4eb1423e433 cdde7486 .config log report syz C
ci-upstream-kasan-gce 2019/07/27 22:35 upstream 5168afe6ef59 c85e1c5b .config log report syz C
ci-upstream-kasan-gce-smack-root 2019/06/08 20:41 upstream 79c3ba3206c7 0159583c .config log report syz C
ci-upstream-kasan-gce-root 2019/06/08 19:12 upstream 79c3ba3206c7 0159583c .config log report syz C
ci-upstream-kasan-gce-selinux-root 2019/06/08 17:36 upstream 79c3ba3206c7 0159583c .config log report syz C
ci-upstream-kasan-gce-smack-root 2019/04/21 17:54 upstream 9e5de623a0cb b0e8efcb .config log report syz C
ci-upstream-kasan-gce-selinux-root 2019/04/13 07:06 upstream 8ee15f324866 c402d8f1 .config log report syz C
ci-upstream-kasan-gce-smack-root 2018/10/27 01:56 upstream 18d0eae30e6a a8292de9 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2018/10/27 01:55 upstream 18d0eae30e6a a8292de9 .config log report syz C
ci-upstream-kasan-gce-root 2018/10/27 01:55 upstream 18d0eae30e6a a8292de9 .config log report syz C
ci-upstream-kasan-gce-386 2019/07/27 22:53 upstream 5168afe6ef59 c85e1c5b .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2019/07/29 07:32 linux-next fde50b96be82 c85e1c5b .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2019/06/26 05:02 linux-next 902031767aec 0a8d1a96 .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2019/06/18 03:22 linux-next a125097c8410 442206d7 .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2019/04/22 14:08 linux-next 3f018f4a019a 0a77c33c .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2018/10/27 01:54 linux-next 8c60c36d0b8c a8292de9 .config log report syz C
ci-upstream-kasan-gce-smack-root 2019/06/15 22:51 upstream e01e060fe00d 442206d7 .config log report
ci-upstream-kasan-gce-root 2019/06/11 01:19 upstream 01ccc3ad4413 0159583c .config log report
ci-upstream-kasan-gce 2019/06/06 15:35 upstream 156c05917e09 698773cb .config log report
ci-upstream-kasan-gce-root 2019/03/26 18:36 upstream a3ac7917b730 55684ce1 .config log report
ci-upstream-kasan-gce-smack-root 2019/03/14 05:33 upstream ebc551f2b8f9 2881fc25 .config log report
ci-upstream-kasan-gce-smack-root 2019/02/28 05:44 upstream 7d762d69145a 34ec456b .config log report
ci-upstream-kasan-gce-smack-root 2019/02/23 18:25 upstream cb268d806972 18107ce0 .config log report
ci-upstream-kasan-gce-smack-root 2019/02/04 10:43 upstream 8834f5600cf3 c198d5dd .config log report
ci-upstream-kasan-gce-smack-root 2019/01/24 03:59 upstream 30bac164aca7 56558f63 .config log report
ci-upstream-kasan-gce-selinux-root 2019/01/24 03:57 upstream 30bac164aca7 56558f63 .config log report
ci-upstream-kasan-gce-root 2019/01/01 07:40 upstream f12e840c819b 3d85f48c .config log report
ci-upstream-kasan-gce-selinux-root 2018/10/22 04:25 upstream 467e050e9760 ecb386fe .config log report
ci-upstream-kasan-gce-root 2018/08/28 10:04 upstream 050cdc6c9501 7ef1de9e .config log report
ci-upstream-kasan-gce-386 2019/03/07 10:39 upstream f90d64483ebd 8c085c5e .config log report
ci-upstream-linux-next-kasan-gce-root 2019/07/04 21:36 linux-next f9ca7f5a1eb9 429efa16 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/02/21 21:25 linux-next 550f4769c7c4 7ff74a98 .config log report
ci-upstream-linux-next-kasan-gce-root 2018/11/29 16:53 linux-next 442b8cea2477 4b6d14f2 .config log report