From: Jens Axboe <axboe@kernel.dk>
To: syzbot <syzbot+804709f40ea66018e544@syzkaller.appspotmail.com>,
asml.silence@gmail.com, io-uring@vger.kernel.org,
linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com,
xiaoguang.wang@linux.alibaba.com
Subject: Re: [syzbot] WARNING in io_poll_task_func (2)
Date: Wed, 3 Nov 2021 17:27:26 -0600 [thread overview]
Message-ID: <0935df19-f813-8840-fa35-43c5558b90e7@kernel.dk> (raw)
In-Reply-To: <0000000000007a0d5705cfea99b2@google.com>
On 11/3/21 5:16 PM, syzbot wrote:
> Hello,
>
> syzbot found the following issue on:
>
> HEAD commit: bdcc9f6a5682 Add linux-next specific files for 20211029
> git tree: linux-next
> console output: https://syzkaller.appspot.com/x/log.txt?x=14ab0e5cb00000
> kernel config: https://syzkaller.appspot.com/x/.config?x=4b504bcb4c507265
> dashboard link: https://syzkaller.appspot.com/bug?extid=804709f40ea66018e544
> compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15710012b00000
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=11862ef4b00000
>
> The issue was bisected to:
>
> commit 34ced75ca1f63fac6148497971212583aa0f7a87
> Author: Xiaoguang Wang <xiaoguang.wang@linux.alibaba.com>
> Date: Mon Oct 25 05:38:48 2021 +0000
>
> io_uring: reduce frequent add_wait_queue() overhead for multi-shot poll request
Again:
#syz invalid
Please stop testing dead branches, it's pointless and just wastes time.
--
Jens Axboe
next prev parent reply other threads:[~2021-11-03 23:27 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-03 23:16 [syzbot] WARNING in io_poll_task_func (2) syzbot
2021-11-03 23:27 ` Jens Axboe [this message]
[not found] ` <CANp29Y4hi=iFti=BzZxEEPgnn74L80fr3WXDR8OVkGNqR9BOLw@mail.gmail.com>
2021-11-04 11:44 ` Jens Axboe
2021-11-08 16:30 ` Dmitry Vyukov
2021-11-08 16:42 ` Jens Axboe
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=0935df19-f813-8840-fa35-43c5558b90e7@kernel.dk \
--to=axboe@kernel.dk \
--cc=asml.silence@gmail.com \
--cc=io-uring@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=syzbot+804709f40ea66018e544@syzkaller.appspotmail.com \
--cc=syzkaller-bugs@googlegroups.com \
--cc=xiaoguang.wang@linux.alibaba.com \
/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
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox