Re: [syzbot] INFO: task hung in ext4_fill_super

On Wed, 16 Jun 2021 02:56:21 -0700
syzbot [off-list ref] wrote:

Hello,

syzbot found the following issue on:

HEAD commit:    f21b807c Merge tag 'drm-fixes-2021-06-11' of
git://anongit.. git tree:       upstream
console output:
https://syzkaller.appspot.com/x/log.txt?x=165fca57d00000 kernel
config:  https://syzkaller.appspot.com/x/.config?x=30f476588412c065
dashboard link:
https://syzkaller.appspot.com/bug?extid=c9ff4822a62eee994ea3 syz
repro:
https://syzkaller.appspot.com/x/repro.syz?x=17d19ce0300000 C
reproducer:   https://syzkaller.appspot.com/x/repro.c?x=108d7988300000

Bisection is inconclusive: the issue happens on the oldest tested
release.

bisection log:
https://syzkaller.appspot.com/x/bisect.txt?x=1646b8d0300000 final
oops:     https://syzkaller.appspot.com/x/report.txt?x=1546b8d0300000
console output:
https://syzkaller.appspot.com/x/log.txt?x=1146b8d0300000

IMPORTANT: if you fix the issue, please add the following tag to the
commit: Reported-by:
syzbot+c9ff4822a62eee994ea3@syzkaller.appspotmail.com

Just want to try this ;)

#syz test https://linux.googlesource.com/linux/kernel/git/torvalds/linux refs/changes/76/10176/6


With regards,
Pavel Skripkin