syzbot


INFO: rcu detected stall in sys_sendfile64 (2)
Status: upstream: reported C repro on 2019/01/19 11:32
Reported-by: syzbot+1505c80c74256c6118a5@syzkaller.appspotmail.com
First crash: 944d, last: 414d

Cause bisection: introduced by (bisect log) :
commit 34e07e42c55aeaa78e93b057a6664e2ecde3fadb
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date: Thu Feb 8 10:54:48 2018 +0000

  drm/i915: Add missing kerneldoc for 'ent' in i915_driver_init_early

Crash: INFO: rcu detected stall in do_iter_write (log)
Repro: C syz .config

Fix bisection: failed (bisect log)
similar bugs (3):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream INFO: rcu detected stall in sys_sendfile64 C 4 956d 956d 0/22 closed as invalid on 2018/12/19 10:12
linux-4.19 INFO: rcu detected stall in sys_sendfile64 (2) 3 501d 552d 0/1 auto-closed as invalid on 2020/07/16 06:45
linux-4.19 INFO: rcu detected stall in sys_sendfile64 1 835d 835d 0/1 auto-closed as invalid on 2019/10/16 04:09

Sample crash report:

Crashes (93):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-root 2020/01/24 19:12 upstream 4703d9119972 2e95ab33 .config log report syz C
ci-upstream-kasan-gce-root 2019/06/06 12:31 upstream 156c05917e09 a547defc .config log report syz C
ci-upstream-kasan-gce-selinux-root 2019/05/03 14:43 upstream ea9866793d1e 1bfa09b9 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2019/04/23 07:48 upstream 085b7755808a 53199d6e .config log report syz C
ci-upstream-kasan-gce-smack-root 2019/04/23 07:46 upstream 085b7755808a 53199d6e .config log report syz C
ci-upstream-kasan-gce-root 2019/02/19 13:36 upstream b5372fe5dc84 59f36113 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2019/01/19 11:06 upstream 2339e91d0e66 2103a236 .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2019/04/23 07:50 linux-next 3f018f4a019a 53199d6e .config log report syz C
ci-upstream-kasan-gce-selinux-root 2020/05/24 17:22 upstream caffb99b6929 bd28eb9d .config log report
ci-upstream-kasan-gce-root 2020/05/08 15:49 upstream 79dede78c057 2b98fdbc .config log report
ci-upstream-kasan-gce-selinux-root 2020/05/02 18:35 upstream 690e2aba7beb 58da4c35 .config log report
ci-upstream-kasan-gce-selinux-root 2020/04/12 10:08 upstream b032227c6293 a8c6a3f8 .config log report
ci-upstream-kasan-gce-selinux-root 2020/04/07 07:01 upstream 7e63420847ae 99a96044 .config log report
ci-upstream-kasan-gce-root 2020/03/13 14:48 upstream 3cc6e2c599cd d850e9d0 .config log report
ci-upstream-kasan-gce-root 2020/03/12 15:54 upstream e6e6ec48dd0f d850e9d0 .config log report
ci-upstream-kasan-gce-root 2020/03/10 02:02 upstream 30bb5572ce7a 35f53e45 .config log report
ci-upstream-kasan-gce-root 2020/02/26 11:16 upstream f8788d86ab28 59b57593 .config log report
ci-upstream-kasan-gce-selinux-root 2020/02/20 20:07 upstream ca7e1fd1026c bd2a74a3 .config log report
ci-upstream-kasan-gce-smack-root 2020/02/15 02:02 upstream 2019fc96af22 5d7b90f1 .config log report
ci-upstream-kasan-gce-selinux-root 2020/02/12 03:14 upstream 359c92c02bfa a75b198c .config log report
ci-upstream-kasan-gce-selinux-root 2020/02/10 20:19 upstream bb6d3fb354c5 18847f55 .config log report
ci-upstream-kasan-gce-selinux-root 2020/02/07 05:17 upstream 90568ecf5615 06150bf1 .config log report
ci-upstream-kasan-gce-root 2020/01/12 10:20 upstream ac61145a725a 4c04afaa .config log report
ci-upstream-kasan-gce-selinux-root 2019/12/24 14:01 upstream 46cf053efec6 be5c2c81 .config log report
ci-upstream-kasan-gce-selinux-root 2019/11/16 04:32 upstream eb70e26cd79d cdac920b .config log report
ci-upstream-kasan-gce-selinux-root 2019/08/23 05:44 upstream 59c36bc8d377 ca6f3cfa .config log report
ci-upstream-kasan-gce-root 2019/07/22 14:40 upstream c6dd78fcb8ee b3c615f5 .config log report
ci-upstream-kasan-gce-smack-root 2019/06/20 07:04 upstream abf02e2964b3 34bf9440 .config log report
ci-upstream-kasan-gce-smack-root 2019/06/17 15:30 upstream 9e0babf2c06c 442206d7 .config log report
ci-upstream-kasan-gce-selinux-root 2019/06/13 12:00 upstream b076173a309e 3f4e812b .config log report
ci-upstream-kasan-gce-smack-root 2019/06/13 09:59 upstream b076173a309e 3f4e812b .config log report
ci-upstream-kasan-gce-root 2019/06/12 12:28 upstream aa7235483a83 794a1ad7 .config log report
ci-upstream-kasan-gce-root 2019/06/07 07:45 upstream 01047631df81 698773cb .config log report
ci-upstream-kasan-gce-smack-root 2019/06/06 19:18 upstream 156c05917e09 698773cb .config log report
ci-upstream-kasan-gce-root 2019/06/05 22:41 upstream 156c05917e09 bfb4a51e .config log report
ci-upstream-kasan-gce-smack-root 2019/06/04 22:25 upstream 788a024921c4 e41a20c5 .config log report
ci-upstream-kasan-gce-root 2019/06/04 22:22 upstream 788a024921c4 e41a20c5 .config log report
ci-upstream-kasan-gce-selinux-root 2018/12/31 02:16 upstream 195303136f19 2b42fdc8 .config log report
ci-upstream-linux-next-kasan-gce-root 2020/06/13 06:22 linux-next e7b08814b16b f4724dd3 .config log report
ci-upstream-linux-next-kasan-gce-root 2020/06/12 07:56 linux-next e7b08814b16b 58802067 .config log report
ci-upstream-linux-next-kasan-gce-root 2020/04/27 12:27 linux-next ac935d227366 0ce7569e .config log report
ci-upstream-linux-next-kasan-gce-root 2020/04/18 22:41 linux-next ac935d227366 365fba24 .config log report
ci-upstream-linux-next-kasan-gce-root 2020/03/28 13:20 linux-next 770fbb32d34e f1ebdfba .config log report
ci-upstream-linux-next-kasan-gce-root 2020/02/18 07:05 linux-next c25a951c50dc 1ce142dc .config log report
ci-upstream-linux-next-kasan-gce-root 2020/02/03 22:53 linux-next 2747d5fdab78 93e5e335 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/12/26 08:34 linux-next 7ddd09fc4b74 be5c2c81 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/07/02 08:45 linux-next 48a8a5f9a326 cccc4302 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/07/01 20:25 linux-next 48a8a5f9a326 907bf746 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/06/23 14:17 linux-next e2d28c40292b 3efccdd2 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/06/23 05:59 linux-next dc636f5d78de 34bf9440 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/06/18 13:24 linux-next 1c6b40509daf e3f76baa .config log report
ci-upstream-linux-next-kasan-gce-root 2019/06/17 14:25 linux-next a125097c8410 442206d7 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/06/08 20:42 linux-next 3f310e51ceb1 0159583c .config log report
ci-upstream-linux-next-kasan-gce-root 2019/06/05 14:53 linux-next b2924447b98a bfb4a51e .config log report
ci-upstream-linux-next-kasan-gce-root 2019/06/05 14:50 linux-next b2924447b98a bfb4a51e .config log report