linux-kernel - Re: [syzbot] [xfs?] INFO: task hung in xfs_buf_item

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Message-ID: <685c65aa.050a0220.2303ee.0098.GAE@google.com>
Date: Wed, 25 Jun 2025 14:10:02 -0700
From: syzbot <syzbot+837bcd54843dd6262f2f@...kaller.appspotmail.com>
To: axboe@...nel.dk, cem@...nel.org, chandan.babu@...cle.com, 
	david@...morbit.com, djwong@...nel.org, hch@....de, john.g.garry@...cle.com, 
	linux-kernel@...r.kernel.org, linux-xfs@...r.kernel.org, 
	syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [xfs?] INFO: task hung in xfs_buf_item_unpin (2)

syzbot suspects this issue was fixed by commit:

commit b1e09178b73adf10dc87fba9aee7787a7ad26874
Author: John Garry <john.g.garry@...cle.com>
Date:   Wed May 7 21:18:31 2025 +0000

    xfs: commit CoW-based atomic writes atomically

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=1078f70c580000
start commit:   85652baa895b Merge tag 'block-6.11-20240824' of git://git...
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=92c0312151c4e32e
dashboard link: https://syzkaller.appspot.com/bug?extid=837bcd54843dd6262f2f
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=12350ad5980000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=147927c5980000

If the result looks correct, please mark the issue as fixed by replying with:

#syz fix: xfs: commit CoW-based atomic writes atomically

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