linux-kernel - Re: [syzbot] [gfs2?] BUG: sleeping function called from invalid context in glock_hash

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Date:   Wed, 06 Sep 2023 01:46:34 -0700
From:   syzbot <syzbot+10c6178a65acf04efe47@...kaller.appspotmail.com>
To:     agruenba@...hat.com, cluster-devel@...hat.com,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        rpeterso@...hat.com, syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [gfs2?] BUG: sleeping function called from invalid
 context in glock_hash_walk

syzbot has bisected this issue to:

commit 0be8432166a61abc537e1247e530f4b85970b56b
Author: Bob Peterson <rpeterso@...hat.com>
Date:   Wed Aug 2 14:24:12 2023 +0000

    gfs2: Don't use filemap_splice_read

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=1470c620680000
start commit:   3f86ed6ec0b3 Merge tag 'arc-6.6-rc1' of git://git.kernel.o..
git tree:       upstream
final oops:     https://syzkaller.appspot.com/x/report.txt?x=1670c620680000
console output: https://syzkaller.appspot.com/x/log.txt?x=1270c620680000
kernel config:  https://syzkaller.appspot.com/x/.config?x=ff0db7a15ba54ead
dashboard link: https://syzkaller.appspot.com/bug?extid=10c6178a65acf04efe47
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=13e4ea14680000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=13f76f10680000

Reported-by: syzbot+10c6178a65acf04efe47@...kaller.appspotmail.com
Fixes: 0be8432166a6 ("gfs2: Don't use filemap_splice_read")

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