linux-ext4 - Re: [syzbot] INFO: task hung in ext4_fill

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Date:   Wed, 16 Jun 2021 19:22:13 +0300
From:   Pavel Skripkin <paskripkin@...il.com>
To:     syzbot <syzbot+c9ff4822a62eee994ea3@...kaller.appspotmail.com>
Cc:     adilger.kernel@...ger.ca, clang-built-linux@...glegroups.com,
        linux-ext4@...r.kernel.org, linux-kernel@...r.kernel.org,
        nathan@...nel.org, ndesaulniers@...gle.com,
        syzkaller-bugs@...glegroups.com, tytso@....edu
Subject: Re: [syzbot] INFO: task hung in ext4_fill_super

On Wed, 16 Jun 2021 02:56:21 -0700
syzbot <syzbot+c9ff4822a62eee994ea3@...kaller.appspotmail.com> 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@...kaller.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