syzbot


INFO: task hung in blkdev_put (3)
Status: upstream: reported C repro on 2020/08/30 21:52
Reported-by: syzbot+1f4ecbe714743132417a@syzkaller.appspotmail.com
First crash: 384d, last: 7d20h
similar bugs (12):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream INFO: task hung in blkdev_put (3) 1 510d 510d 0/22 auto-closed as invalid on 2020/06/25 13:28
android-49 INFO: task hung in blkdev_put (2) 3 674d 693d 0/3 auto-closed as invalid on 2020/03/14 12:22
linux-4.19 INFO: task hung in blkdev_put C 16 8d19h 422d 0/1 upstream: reported C repro on 2020/07/23 21:33
upstream INFO: task hung in blkdev_put 320 952d 1378d 0/22 closed as dup on 2018/11/11 08:29
linux-4.14 INFO: task hung in blkdev_put 2 736d 885d 0/1 auto-closed as invalid on 2020/01/12 01:56
upstream INFO: task hung in blkdev_put (4) C done 64 8h20m 350d 0/22 upstream: reported C repro on 2020/10/03 13:09
android-49 INFO: task hung in blkdev_put 220 872d 889d 0/3 auto-closed as invalid on 2019/10/25 08:47
linux-4.14 INFO: task hung in blkdev_put (2) 2 539d 577d 0/1 auto-closed as invalid on 2020/07/26 14:38
android-414 INFO: task hung in blkdev_put 119 658d 890d 0/1 auto-closed as invalid on 2020/03/30 04:06
android-44 INFO: task hung in blkdev_put 26 958d 889d 0/2 auto-closed as invalid on 2019/08/03 02:42
android-44 INFO: task hung in blkdev_put (2) 3 669d 746d 0/2 auto-closed as invalid on 2020/03/18 19:27
upstream INFO: task hung in blkdev_put (2) 2 665d 711d 0/22 auto-closed as invalid on 2020/02/22 04:07

Sample crash report:

Fix bisection attempts:
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci2-linux-4-14 2021/09/11 16:23 linux-4.14.y f96eb53cbd76 8bdd5343 .config log report syz C
ci2-linux-4-14 2021/08/12 12:59 linux-4.14.y 46914f96189b 8bdd5343 .config log report syz C
ci2-linux-4-14 2021/07/13 12:29 linux-4.14.y 4e68c9b0763f 8bdd5343 .config log report syz C
ci2-linux-4-14 2021/06/13 12:03 linux-4.14.y 3d3abdc8ebd3 8bdd5343 .config log report syz C
ci2-linux-4-14 2021/05/01 13:39 linux-4.14.y 7d7d1c0ab3eb 821e0b09 .config log report syz C
ci2-linux-4-14 2021/03/03 18:49 linux-4.14.y 397a88b2cc86 821e0b09 .config log report syz C
ci2-linux-4-14 2020/12/01 17:29 linux-4.14.y 87335852c5d9 8bc4594f .config log report syz C
ci2-linux-4-14 2020/10/04 09:44 linux-4.14.y bae31eef2a16 d5a3ae1f .config log report syz C
Crashes (11):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci2-linux-4-14 2021/05/14 11:34 linux-4.14.y 7d7d1c0ab3eb 8bdd5343 .config log report syz C INFO: task hung in blkdev_put
ci2-linux-4-14 2020/12/26 18:31 linux-4.14.y 3f2ecb86cb90 821e0b09 .config log report syz C
ci2-linux-4-14 2020/11/01 16:49 linux-4.14.y 2b7915014161 8bc4594f .config log report syz C
ci2-linux-4-14 2020/08/30 21:51 linux-4.14.y d7e78d08fa77 d5a3ae1f .config log report syz C
ci2-linux-4-14 2021/04/01 13:10 linux-4.14.y bd634aa64163 6a81331a .config log report info INFO: task hung in blkdev_put
ci2-linux-4-14 2021/03/30 23:07 linux-4.14.y bd634aa64163 6a81331a .config log report info INFO: task hung in blkdev_put
ci2-linux-4-14 2021/02/01 18:18 linux-4.14.y 2c8a3fceddf0 e6b95f32 .config log report info INFO: task hung in blkdev_put
ci2-linux-4-14 2021/01/16 00:23 linux-4.14.y f79dc86058bc 65a7a854 .config log report info
ci2-linux-4-14 2021/01/09 01:17 linux-4.14.y 1752938529c6 c104d4a3 .config log report info
ci2-linux-4-14 2020/10/19 04:30 linux-4.14.y cbfa1702aaf6 fea47c01 .config log report info
ci2-linux-4-14 2020/09/04 05:46 linux-4.14.y 2f166cdcf8a9 abf9ba4f .config log report