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From: Jens Axboe <axboe@kernel.dk>
To: syzbot <syzbot+30a60157d4ef222fd5e2@syzkaller.appspotmail.com>,
	akpm@linux-foundation.org, andrii@kernel.org,
	asml.silence@gmail.com, ast@kernel.org, bpf@vger.kernel.org,
	christian@brauner.io, daniel@iogearbox.net, david@redhat.com,
	ebiederm@xmission.com, io-uring@vger.kernel.org,
	john.fastabend@gmail.com, kafai@fb.com, kpsingh@kernel.org,
	linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
	npiggin@gmail.com, peterz@infradead.org, songliubraving@fb.com,
	syzkaller-bugs@googlegroups.com,
	xiaoguang.wang@linux.alibaba.com, yhs@fb.com
Subject: Re: [syzbot] WARNING: ODEBUG bug in __put_task_struct
Date: Sun, 31 Oct 2021 13:41:04 -0600	[thread overview]
Message-ID: <bd03422b-4a19-c518-f550-13cd7be243fc@kernel.dk> (raw)
In-Reply-To: <000000000000bb843a05cfa99111@google.com>

On 10/31/21 11:41 AM, syzbot wrote:
> Hello,
> 
> syzbot found the following issue on:
> 
> HEAD commit:    bdcc9f6a5682 Add linux-next specific files for 20211029
> git tree:       linux-next
> console output: https://syzkaller.appspot.com/x/log.txt?x=1413226ab00000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=cea91ee10b0cd274
> dashboard link: https://syzkaller.appspot.com/bug?extid=30a60157d4ef222fd5e2
> compiler:       gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=121ba3e2b00000
> 
> The issue was bisected to:
> 
> commit 34ced75ca1f63fac6148497971212583aa0f7a87
> Author: Xiaoguang Wang <xiaoguang.wang@linux.alibaba.com>
> Date:   Mon Oct 25 05:38:48 2021 +0000
> 
>     io_uring: reduce frequent add_wait_queue() overhead for multi-shot poll request

This was dropped from the tree last week:

#syz invalid

-- 
Jens Axboe


      reply	other threads:[~2021-10-31 19:41 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-31 17:41 [syzbot] WARNING: ODEBUG bug in __put_task_struct syzbot
2021-10-31 19:41 ` Jens Axboe [this message]

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