syzbot


INFO: task hung in blkdev_put
Status: upstream: reported C repro on 2020/07/23 21:33
Reported-by: syzbot+cded3bd87b0c7c49c717@syzkaller.appspotmail.com
First crash: 422d, last: 8d18h
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 673d 693d 0/3 auto-closed as invalid on 2020/03/14 12:22
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
linux-4.14 INFO: task hung in blkdev_put (3) C 11 7d19h 384d 0/1 upstream: reported C repro on 2020/08/30 21:52
upstream INFO: task hung in blkdev_put (4) C done 64 8h07m 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-4-19 2021/09/06 03:13 linux-4.19.y b172b44fcb17 6a81331a .config log report syz C
ci2-linux-4-19 2021/07/17 23:26 linux-4.19.y fcfbdfe9626e 6a81331a .config log report syz C
ci2-linux-4-19 2021/06/17 22:56 linux-4.19.y eb575cd5d7f6 6a81331a .config log report syz C
ci2-linux-4-19 2021/03/26 07:15 linux-4.19.y 78fec1611cbf 2ce644fc .config log report syz C
ci2-linux-4-19 2020/12/21 22:37 linux-4.19.y 13d2ce42de8c c7ec2d19 .config log report syz C
Crashes (16):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci2-linux-4-19 2021/04/06 16:21 linux-4.19.y 2034d6f0838e 6a81331a .config log report syz C INFO: task hung in blkdev_put
ci2-linux-4-19 2021/02/08 17:18 linux-4.19.y 811218eceeaa 2ce644fc .config log report syz C INFO: task hung in blkdev_put
ci2-linux-4-19 2021/01/09 20:43 linux-4.19.y 610bdbf6a174 a6c52263 .config log report syz C
ci2-linux-4-19 2020/11/21 22:04 linux-4.19.y 2c746135a12e c7ec2d19 .config log report syz C
ci2-linux-4-19 2021/09/10 17:25 linux-4.19.y b172b44fcb17 5ae8508a .config log report info INFO: task hung in blkdev_put
ci2-linux-4-19 2021/08/07 02:38 linux-4.19.y 6ca2f514c578 6972b106 .config log report info INFO: task hung in blkdev_put
ci2-linux-4-19 2021/05/18 22:28 linux-4.19.y 3c8c23092588 a343ba6b .config log report info INFO: task hung in blkdev_put
ci2-linux-4-19 2021/05/10 09:06 linux-4.19.y 3c8c23092588 bc5434be .config log report info INFO: task hung in blkdev_put
ci2-linux-4-19 2021/05/05 19:55 linux-4.19.y 97a8651cadce 06c27ff5 .config log report info INFO: task hung in blkdev_put
ci2-linux-4-19 2021/02/24 06:17 linux-4.19.y 2d19be4653f5 fcc6d71b .config log report info INFO: task hung in blkdev_put
ci2-linux-4-19 2021/02/09 22:57 linux-4.19.y 811218eceeaa 2bd9619f .config log report info INFO: task hung in blkdev_put
ci2-linux-4-19 2021/02/09 09:35 linux-4.19.y 811218eceeaa 2bd9619f .config log report info INFO: task hung in blkdev_put
ci2-linux-4-19 2021/01/11 12:53 linux-4.19.y 610bdbf6a174 2c1f2513 .config log report info
ci2-linux-4-19 2020/12/26 06:59 linux-4.19.y 13d2ce42de8c 821e0b09 .config log report info
ci2-linux-4-19 2020/10/14 08:27 linux-4.19.y a1b977b49b66 fc7735a2 .config log report info
ci2-linux-4-19 2020/07/23 21:32 linux-4.19.y 20b3a3dfdf6c 70c104a1 .config log report