linux-ext4 - Re: INFO: task hung in jbd2_journal_commit

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Message-ID: <20181002145322.GE17537@thunk.org>
Date:   Tue, 2 Oct 2018 10:53:22 -0400
From:   "Theodore Y. Ts'o" <tytso@....edu>
To:     syzbot <syzbot+0e7e90fff14568b11ebe@...kaller.appspotmail.com>
Cc:     jack@...e.com, linux-ext4@...r.kernel.org,
        linux-kernel@...r.kernel.org, syzkaller-bugs@...glegroups.com
Subject: Re: INFO: task hung in jbd2_journal_commit_transaction

On Mon, Sep 24, 2018 at 06:19:02AM -0700, syzbot wrote:
> Hello,
> 
> syzbot found the following crash on:
> 
> HEAD commit:    46c163a036b4 Add linux-next specific files for 20180921
> git tree:       linux-next
> console output: https://syzkaller.appspot.com/x/log.txt?x=1283fef1400000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=20ea07a946ad19d7
> dashboard link: https://syzkaller.appspot.com/bug?extid=0e7e90fff14568b11ebe
> compiler:       gcc (GCC) 8.0.1 20180413 (experimental)
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=13d6792a400000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=1610b21a400000

#syz dup: INFO: task hung in ext4_fallocate