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Tue, 20 Jan 2026 10:05:48 -0800 (PST) Message-ID: <48ccf244-6af6-4a62-b18f-e9fee573b319@kernel.dk> Date: Tue, 20 Jan 2026 11:05:47 -0700 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: [syzbot] [io-uring?] INFO: task hung in io_wq_put_and_exit (6) From: Jens Axboe To: syzbot , io-uring@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com References: <68a2decc.050a0220.e29e5.0099.GAE@google.com> <7aa47c41-df51-4a9a-b021-866ea1bacb7b@kernel.dk> Content-Language: en-US In-Reply-To: <7aa47c41-df51-4a9a-b021-866ea1bacb7b@kernel.dk> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 1/20/26 8:04 AM, Jens Axboe wrote: > Just to wrap this one up - there's a fairly lengthy explanation posted > here: > > https://lore.kernel.org/io-uring/937c3e38-368e-43eb-9d7e-2dcc0697799f@kernel.dk/ > > which details why this isn't really a bug, it's just slow exit due to > the odd huge reads (and number of them) syzbot queues up with io_uring > before exiting. Let's see if syzbot is fixed again: #syz test: git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux.git syztest -- Jens Axboe