io-uring.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Pavel Begunkov <asml.silence@gmail.com>
To: Hao Sun <sunhao.th@gmail.com>, Jens Axboe <axboe@kernel.dk>
Cc: io-uring@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: INFO: task hung in io_uring_cancel_generic
Date: Mon, 13 Sep 2021 09:30:09 +0100	[thread overview]
Message-ID: <7faa04f8-cd98-7d8a-2e54-e84e1fe742f7@gmail.com> (raw)
In-Reply-To: <CACkBjsYvCPQ2PpryOT5rHNTg5AuFpzOYip4UNjh40HwW2+XbsA@mail.gmail.com>

On 9/13/21 3:26 AM, Hao Sun wrote:
> Hi
> 
> Healer found a C reproducer for this crash ("INFO: task hung in
> io_ring_exit_work").
> 
> HEAD commit: 4b93c544e90e-thunderbolt: test: split up test cases
> git tree: upstream
> console output:
> https://drive.google.com/file/d/1NswMU2yMRTc8-EqbZcVvcJejV92cuZIk/view?usp=sharing
> kernel config: https://drive.google.com/file/d/1c0u2EeRDhRO-ZCxr9MP2VvAtJd6kfg-p/view?usp=sharing
> C reproducer: https://drive.google.com/file/d/170wk5_T8mYDaAtDcrdVi2UU9_dW1894s/view?usp=sharing
> Syzlang reproducer:
> https://drive.google.com/file/d/1eo-jAS9lncm4i-1kaCBkexrjpQHXboBq/view?usp=sharing
> 
> If you fix this issue, please add the following tag to the commit:
> Reported-by: Hao Sun <sunhao.th@gmail.com>

I don't see the repro using io_uring at all. Can it be because of
the delay before the warning shows itself? 120 secs, this appeared
after 143.

[...]

-- 
Pavel Begunkov

  parent reply	other threads:[~2021-09-13  8:30 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-07 11:50 Hao Sun
2021-09-07 19:30 ` Jens Axboe
2021-09-07 21:31   ` Pavel Begunkov
2021-09-08  1:01     ` Hao Sun
2021-09-08  6:57       ` Hao Sun
2021-09-08 20:16         ` Pavel Begunkov
2021-09-13  2:26           ` Hao Sun
2021-09-13  2:50             ` Jens Axboe
2021-09-13  3:21               ` Hao Sun
2021-09-13  8:30             ` Pavel Begunkov [this message]
2021-09-14  3:01               ` Hao Sun

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=7faa04f8-cd98-7d8a-2e54-e84e1fe742f7@gmail.com \
    --to=asml.silence@gmail.com \
    --cc=axboe@kernel.dk \
    --cc=io-uring@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=sunhao.th@gmail.com \
    --subject='Re: INFO: task hung in io_uring_cancel_generic' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).