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From: syzbot <syzbot+7d19c5fe6a3f1161abb7@syzkaller.appspotmail.com>
To: acme@kernel.org, adilger.kernel@dilger.ca, axboe@kernel.dk,
	dvyukov@google.com, fweisbec@gmail.com,
	linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org,
	linux-kernel@vger.kernel.org, ming.lei@redhat.com,
	mingo@kernel.org, mingo@redhat.com,
	penguin-kernel@i-love.sakura.ne.jp, peterz@infradead.org,
	syzkaller-bugs@googlegroups.com, tglx@linutronix.de,
	tytso@mit.edu
Subject: Re: INFO: rcu detected stall in ext4_file_write_iter
Date: Fri, 11 Sep 2020 12:33:08 -0700	[thread overview]
Message-ID: <00000000000029b48f05af0ec14f@google.com> (raw)
In-Reply-To: <0000000000009a01370582c6772a@google.com>

syzbot suspects this issue was fixed by commit:

commit 7e24969022cbd61ddc586f14824fc205661bb124
Author: Ming Lei <ming.lei@redhat.com>
Date:   Mon Aug 17 10:00:55 2020 +0000

    block: allow for_each_bvec to support zero len bvec

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=1120f201900000
start commit:   92ed3019 Linux 5.8-rc7
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=84f076779e989e69
dashboard link: https://syzkaller.appspot.com/bug?extid=7d19c5fe6a3f1161abb7
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=170f7cbc900000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=16a25e38900000

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

#syz fix: block: allow for_each_bvec to support zero len bvec

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

  parent reply	other threads:[~2020-09-11 19:33 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-02-26  6:50 INFO: rcu detected stall in ext4_file_write_iter syzbot
2019-02-26 15:17 ` Theodore Y. Ts'o
2019-02-27  9:58   ` Dmitry Vyukov
2019-02-27 21:57     ` Theodore Y. Ts'o
2019-02-28  9:34       ` Dmitry Vyukov
2019-03-21 17:30 ` syzbot
2020-09-11 19:33 ` syzbot [this message]
2020-09-11 20:03   ` Jens Axboe
2021-10-06  8:20 Hao Sun

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