linux-kernel - Re: [syzbot] [io-uring?] INFO: task hung in io_wq_put_and

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Message-ID: <48ccf244-6af6-4a62-b18f-e9fee573b319@kernel.dk>
Date: Tue, 20 Jan 2026 11:05:47 -0700
From: Jens Axboe <axboe@...nel.dk>
To: syzbot <syzbot+4eb282331cab6d5b6588@...kaller.appspotmail.com>,
 io-uring@...r.kernel.org, linux-kernel@...r.kernel.org,
 syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [io-uring?] INFO: task hung in io_wq_put_and_exit (6)

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