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Wed, 12 Jun 2024 06:54:06 -0700 (PDT) Message-ID: <07dcda2d-1b78-4ac0-8ce1-5956c67b3778@gmail.com> Date: Wed, 12 Jun 2024 14:54:14 +0100 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [io-uring] WARNING in __put_task_struct To: chase xd , Jens Axboe , io-uring@vger.kernel.org, linux-kernel@vger.kernel.org References: <9baaad14-0639-4780-809a-0548e842556f@gmail.com> Content-Language: en-US From: Pavel Begunkov In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit 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 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