linux-kernel - Re: [syzbot] [block] INFO: task hung in clean_bdev

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Date:   Mon, 25 Sep 2023 01:58:23 -0700
From:   syzbot <syzbot+1fa947e7f09e136925b8@...kaller.appspotmail.com>
To:     axboe@...nel.dk, brauner@...nel.org, david@...morbit.com,
        djwong@...nel.org, hare@...e.de, hch@...radead.org, hch@....de,
        johannes.thumshirn@....com, linux-block@...r.kernel.org,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-xfs@...r.kernel.org, mcgrof@...nel.org, nogikh@...gle.com,
        p.raghav@...sung.com, syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [block] INFO: task hung in clean_bdev_aliases

Hello,

syzbot tried to test the proposed patch but the build/boot failed:

fs/buffer.c:2068:40: error: 'return' with a value, in function returning void [-Werror=return-type]

Tested on:

commit:         b8908de1 iomap: add a workaround for racy i_size updat..
git tree:       git://git.infradead.org/users/hch/misc.git bdev-iomap-fix
kernel config:  https://syzkaller.appspot.com/x/.config?x=999148c170811772
dashboard link: https://syzkaller.appspot.com/bug?extid=1fa947e7f09e136925b8
compiler:       gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40

Note: no patches were applied.