From: Jens Axboe <[email protected]>
To: syzbot <[email protected]>,
[email protected], [email protected],
[email protected], [email protected],
[email protected], [email protected],
[email protected], [email protected]
Subject: Re: [syzbot] INFO: rcu detected stall in tctx_task_work
Date: Sun, 31 Oct 2021 13:40:48 -0600 [thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
On 10/31/21 11:40 AM, 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=10be38f4b00000
> kernel config: https://syzkaller.appspot.com/x/.config?x=4b504bcb4c507265
> dashboard link: https://syzkaller.appspot.com/bug?extid=e4f5deeeccdd5a4873fe
> 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=10b915d4b00000
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1395f3e2b00000
>
> The issue was bisected to:
>
> commit 34ced75ca1f63fac6148497971212583aa0f7a87
> Author: Xiaoguang Wang <[email protected]>
> Date: Mon Oct 25 05:38:48 2021 +0000
>
> io_uring: reduce frequent add_wait_queue() overhead for multi-shot poll request
This was dropped from the tree last week:
#syz invalid
--
Jens Axboe
prev parent reply other threads:[~2021-10-31 19:40 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-31 17:40 [syzbot] INFO: rcu detected stall in tctx_task_work syzbot
2021-10-31 19:40 ` Jens Axboe [this message]
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