linux-kernel - Re: [syzbot] [mm?] INFO: task hung in write_cache

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Message-ID: <00000000000099b9c905f5e9a820@google.com>
Date:   Thu, 02 Mar 2023 04:06:28 -0800
From:   syzbot <syzbot+0adf31ecbba886ab504f@...kaller.appspotmail.com>
To:     akpm@...ux-foundation.org, davem@...emloft.net, dvyukov@...gle.com,
        edumazet@...gle.com, elver@...gle.com, glider@...gle.com,
        hdanton@...a.com, kasan-dev@...glegroups.com, kuba@...nel.org,
        linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        netdev@...r.kernel.org, pabeni@...hat.com,
        syzkaller-bugs@...glegroups.com, willy@...radead.org
Subject: Re: [syzbot] [mm?] INFO: task hung in write_cache_pages (2)

syzbot has bisected this issue to:

commit 17bb55487988c5dac32d55a4f085e52f875f98cc
Author: Matthew Wilcox (Oracle) <willy@...radead.org>
Date:   Tue May 17 22:12:25 2022 +0000

    ntfs: Remove check for PageError

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=13fd6e54c80000
start commit:   489fa31ea873 Merge branch 'work.misc' of git://git.kernel...
git tree:       upstream
final oops:     https://syzkaller.appspot.com/x/report.txt?x=10036e54c80000
console output: https://syzkaller.appspot.com/x/log.txt?x=17fd6e54c80000
kernel config:  https://syzkaller.appspot.com/x/.config?x=cbfa7a73c540248d
dashboard link: https://syzkaller.appspot.com/bug?extid=0adf31ecbba886ab504f
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=16dc6960c80000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=16f39d50c80000

Reported-by: syzbot+0adf31ecbba886ab504f@...kaller.appspotmail.com
Fixes: 17bb55487988 ("ntfs: Remove check for PageError")

For information about bisection process see: https://goo.gl/tpsmEJ#bisection