syzbot


INFO: task hung in vfs_setxattr (3)
Status: upstream: reported syz repro on 2020/09/15 04:59
Reported-by: syzbot+738cca7d7d9754493513@syzkaller.appspotmail.com
First crash: 222d, last: 48d

Cause bisection: introduced by (bisect log) :
commit 6a3c7f5c87854e948c3c234e5f5e745c7c553722
Author: Nikolay Borisov <nborisov@suse.com>
Date: Thu May 28 08:05:13 2020 +0000

  btrfs: don't balance btree inode pages from buffered write path

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

Fix bisection: failed (bisect log)
similar bugs (7):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream INFO: task hung in vfs_setxattr (2) 1 327d 327d 0/22 auto-closed as invalid on 2020/07/28 17:13
android-49 INFO: task hung in vfs_setxattr 4 984d 1010d 0/3 auto-closed as invalid on 2019/02/22 13:09
upstream INFO: task hung in vfs_setxattr 46 856d 1017d 0/22 auto-closed as invalid on 2019/06/15 01:37
linux-4.19 INFO: task hung in vfs_setxattr (2) C 3 10d 110d 0/1 upstream: reported C repro on 2021/01/01 10:53
android-414 INFO: task hung in vfs_setxattr 1 733d 733d 0/1 auto-closed as invalid on 2019/10/16 16:43
linux-4.19 INFO: task hung in vfs_setxattr 3 529d 591d 0/1 auto-closed as invalid on 2020/03/08 20:30
android-44 INFO: task hung in vfs_setxattr C 3 608d 613d 0/2 public: reported C repro on 2019/08/17 15:36

Sample crash report:

Crashes (46):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-selinux-root 2020/09/24 17:46 upstream c9c9e6a4 54289b08 .config log report syz
ci-upstream-kasan-gce-root 2020/09/24 03:45 upstream 805c6d3c 287cd75a .config log report syz
ci-upstream-kasan-gce-selinux-root 2020/09/11 04:49 upstream 7fe10096 409809d8 .config log report syz
ci-upstream-kasan-gce 2021/03/04 18:36 upstream f69d02e3 d7e4e604 .config log report info INFO: task hung in vfs_setxattr
ci-upstream-kasan-gce-smack-root 2021/02/25 02:24 upstream 719bbd4a fcc6d71b .config log report info INFO: task hung in vfs_setxattr
ci-upstream-kasan-gce 2021/02/25 00:44 upstream 719bbd4a fcc6d71b .config log report info INFO: task hung in vfs_setxattr
ci-upstream-kasan-gce-root 2021/02/24 23:25 upstream c03c21ba fcc6d71b .config log report info INFO: task hung in vfs_setxattr
ci-upstream-kasan-gce-smack-root 2021/02/21 15:05 upstream e767b353 3e5ed8b4 .config log report info INFO: task hung in vfs_setxattr
ci-upstream-kasan-gce-smack-root 2021/02/21 03:07 upstream f40ddce8 3e5ed8b4 .config log report info INFO: task hung in vfs_setxattr
ci-upstream-kasan-gce-selinux-root 2021/02/20 22:51 upstream f40ddce8 3e5ed8b4 .config log report info INFO: task hung in vfs_setxattr
ci-upstream-kasan-gce-root 2021/02/20 22:50 upstream f40ddce8 3e5ed8b4 .config log report info INFO: task hung in vfs_setxattr
ci-upstream-kasan-gce 2021/02/20 22:45 upstream f40ddce8 3e5ed8b4 .config log report info INFO: task hung in vfs_setxattr
ci-upstream-kasan-gce-smack-root 2021/02/19 23:43 upstream f40ddce8 f689d40a .config log report info INFO: task hung in vfs_setxattr
ci-upstream-kasan-gce 2021/02/09 05:18 upstream e0756cfc 2bd9619f .config log report info INFO: task hung in vfs_setxattr
ci-upstream-kasan-gce-selinux-root 2021/02/09 05:17 upstream e0756cfc 2bd9619f .config log report info INFO: task hung in vfs_setxattr
ci-upstream-kasan-gce-smack-root 2021/02/09 05:17 upstream e0756cfc 2bd9619f .config log report info INFO: task hung in vfs_setxattr
ci-upstream-kasan-gce-root 2021/02/09 05:17 upstream e0756cfc 2bd9619f .config log report info INFO: task hung in vfs_setxattr
ci-upstream-kasan-gce-root 2021/02/08 15:59 upstream 92bf2261 2ce644fc .config log report info INFO: task hung in vfs_setxattr
ci-upstream-kasan-gce 2021/02/08 12:58 upstream 92bf2261 2ce644fc .config log report info INFO: task hung in vfs_setxattr
ci-upstream-kasan-gce-smack-root 2021/02/08 12:08 upstream 92bf2261 2ce644fc .config log report info INFO: task hung in vfs_setxattr
ci-upstream-kasan-gce 2021/02/04 22:12 upstream 61556703 42b90a7c .config log report info INFO: task hung in vfs_setxattr
ci-upstream-kasan-gce-smack-root 2021/01/26 20:40 upstream 13391c60 55a7d4df .config log report info INFO: task hung in vfs_setxattr
ci-upstream-kasan-gce-root 2021/01/25 08:01 upstream e6806137 52e37319 .config log report info INFO: task hung in vfs_setxattr
ci-upstream-kasan-gce-root 2021/01/20 00:42 upstream 1e2a199f 63631df1 .config log report info INFO: task hung in vfs_setxattr
ci-upstream-kasan-gce-386 2021/02/21 14:55 upstream e767b353 3e5ed8b4 .config log report info INFO: task hung in vfs_setxattr
ci-upstream-kasan-gce-386 2021/02/20 22:51 upstream f40ddce8 3e5ed8b4 .config log report info INFO: task hung in vfs_setxattr
ci-upstream-kasan-gce-386 2021/02/20 06:37 upstream f40ddce8 f689d40a .config log report info INFO: task hung in vfs_setxattr
ci-upstream-kasan-gce-386 2021/02/17 17:10 upstream f40ddce8 052f8d9f .config log report info INFO: task hung in vfs_setxattr
ci-upstream-kasan-gce-386 2021/02/08 15:08 upstream 92bf2261 2ce644fc .config log report info INFO: task hung in vfs_setxattr
ci-upstream-kasan-gce-386 2021/01/25 05:09 upstream e6806137 52e37319 .config log report info INFO: task hung in vfs_setxattr
ci-upstream-kasan-gce-selinux-root 2021/01/08 11:39 upstream f5e6c330 c104d4a3 .config log report info
ci-upstream-kasan-gce-root 2021/01/08 11:27 upstream f5e6c330 c104d4a3 .config log report info
ci-upstream-kasan-gce 2021/01/08 11:11 upstream f5e6c330 c104d4a3 .config log report info
ci-upstream-kasan-gce-root 2021/01/06 18:20 upstream 9f1abbe9 c104d4a3 .config log report info
ci-upstream-kasan-gce-root 2021/01/06 04:42 upstream 6207214a b1c228e1 .config log report info
ci-upstream-kasan-gce 2021/01/06 03:50 upstream 6207214a b1c228e1 .config log report info
ci-upstream-kasan-gce 2020/12/31 12:57 upstream f6e1ea19 5cc121d6 .config log report info
ci-upstream-kasan-gce-root 2020/12/31 05:54 upstream f6e1ea19 5cc121d6 .config log report info
ci-upstream-kasan-gce-selinux-root 2020/12/31 05:48 upstream f6e1ea19 5cc121d6 .config log report info
ci-upstream-kasan-gce 2020/12/24 08:23 upstream 58cf05f5 c2c1d1dd .config log report info
ci-upstream-kasan-gce-386 2021/01/06 18:39 upstream 9f1abbe9 c104d4a3 .config log report info
ci-upstream-kasan-gce-386 2021/01/06 05:48 upstream 6207214a b1c228e1 .config log report info
ci-upstream-kasan-gce-386 2020/12/31 13:06 upstream f6e1ea19 5cc121d6 .config log report info
ci-upstream-kasan-gce-386 2020/12/31 05:58 upstream f6e1ea19 5cc121d6 .config log report info
ci-upstream-kasan-gce-386 2020/12/24 08:57 upstream 58cf05f5 c2c1d1dd .config log report info