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: 18d, last: 4d11h

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
similar bugs (6):
Kernel Title Repro Bisected Count Last Reported Patched Status
upstream INFO: task hung in vfs_setxattr (2) 1 122d 122d 0/17 auto-closed as invalid on 2020/07/28 17:13
android-49 INFO: task hung in vfs_setxattr 4 779d 805d 0/3 auto-closed as invalid on 2019/02/22 13:09
upstream INFO: task hung in vfs_setxattr 46 652d 812d 0/17 auto-closed as invalid on 2019/06/15 01:37
android-414 INFO: task hung in vfs_setxattr 1 528d 528d 0/1 auto-closed as invalid on 2019/10/16 16:43
linux-4.19 INFO: task hung in vfs_setxattr 3 324d 386d 0/1 auto-closed as invalid on 2020/03/08 20:30
android-44 INFO: task hung in vfs_setxattr C 3 403d 408d 0/2 public: reported C repro on 2019/08/17 15:36

Sample crash report:

Crashes (3):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Maintainers
ci-upstream-kasan-gce-selinux-root 2020/09/24 17:46 upstream c9c9e6a4 54289b08 .config log report syz linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-root 2020/09/24 03:45 upstream 805c6d3c 287cd75a .config log report syz linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-selinux-root 2020/09/11 04:49 upstream 7fe10096 409809d8 .config log report syz linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk