linux-kernel - Re: [io-uring] WARNING in __put_task

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Message-ID: <07dcda2d-1b78-4ac0-8ce1-5956c67b3778@gmail.com>
Date: Wed, 12 Jun 2024 14:54:14 +0100
From: Pavel Begunkov <asml.silence@...il.com>
To: chase xd <sl1589472800@...il.com>, Jens Axboe <axboe@...nel.dk>,
 io-uring@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [io-uring] WARNING in __put_task_struct

On 6/12/24 07:59, chase xd wrote:
> Repro hit the bug with a low probability, so maybe you need to try
> more times on the branch I reported. Also, this bug still exists in
> branch 6.10.0-rc1-00004-gff802a9f35cf-dirty #7.

Yeah, unreliable, just hit something with some version,
will try to repro with 6.10 and see what's going on


> Pavel Begunkov <asml.silence@...il.com> 于2024年6月12日周三 03:17写道：
>>
>> On 6/7/24 18:15, chase xd wrote:
>>> Dear Linux kernel maintainers,
>>>
>>> Syzkaller reports this previously unknown bug on Linux
>>> 6.8.0-rc3-00043-ga69d20885494-dirty #4. Seems like the bug was
>>> silently or unintendedly fixed in the latest version.
>>
>> I can't reproduce it neither with upstream nor a69d20885494,
>> it's likely some funkiness of that branch, and sounds like
>> you already tested newer kernels with no success. You can
>> also try it with a stable kernel to see if you can hit it.

-- 
Pavel Begunkov