linux-kernel - Re: [syzbot] [bcachefs?] INFO: task hung in vfs

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Message-ID: <67c9d6ad.050a0220.15b4b9.0039.GAE@google.com>
Date: Thu, 06 Mar 2025 09:09:01 -0800
From: syzbot <syzbot+6983c03a6a28616e362f@...kaller.appspotmail.com>
To: Yuezhang.Mo@...y.com, andy.wu@...y.com, bp@...en8.de, brauner@...nel.org, 
	dave.hansen@...ux.intel.com, hpa@...or.com, jack@...e.cz, 
	kent.overstreet@...ux.dev, linkinjeon@...nel.org, 
	linux-bcachefs@...r.kernel.org, linux-fsdevel@...r.kernel.org, 
	linux-kernel@...r.kernel.org, mingo@...hat.com, sj1557.seo@...sung.com, 
	syzkaller-bugs@...glegroups.com, tglx@...utronix.de, viro@...iv.linux.org.uk, 
	wataru.aoyama@...y.com, x86@...nel.org, yuezhang.mo@...y.com
Subject: Re: [syzbot] [bcachefs?] INFO: task hung in vfs_unlink (5)

syzbot has bisected this issue to:

commit f55c096f62f100aa9f5f48d86e1b6846ecbd67e7
Author: Yuezhang Mo <Yuezhang.Mo@...y.com>
Date:   Tue May 30 09:35:00 2023 +0000

    exfat: do not zero the extended part

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=1356fda8580000
start commit:   bb2281fb05e5 Merge tag 'x86_microcode_for_v6.14_rc6' of gi..
git tree:       upstream
final oops:     https://syzkaller.appspot.com/x/report.txt?x=10d6fda8580000
console output: https://syzkaller.appspot.com/x/log.txt?x=1756fda8580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=523d3ff8e053340a
dashboard link: https://syzkaller.appspot.com/bug?extid=6983c03a6a28616e362f
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=12cf7078580000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=10197da8580000

Reported-by: syzbot+6983c03a6a28616e362f@...kaller.appspotmail.com
Fixes: f55c096f62f1 ("exfat: do not zero the extended part")

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