From: Josef <[email protected]>
To: Jens Axboe <[email protected]>, io-uring <[email protected]>
Cc: [email protected]
Subject: Re: Using SQPOLL for-5.11/io_uring kernel NULL pointer dereference
Date: Sat, 7 Nov 2020 01:51:35 +0100 [thread overview]
Message-ID: <CAAss7+rt_mkHhGY=kkduDK58jVZy73yZx8qFYEPOU9JjGaCs=g@mail.gmail.com> (raw)
In-Reply-To: <CAAss7+pgQN7uPFaLakd+K4yZH6TRcMHELQV0wAA2NUxPpYEL_Q@mail.gmail.com>
On Sat, 7 Nov 2020 at 01:45, Josef <[email protected]> wrote:
>
> Hi,
>
> I came across some strange behaviour in some netty-io_uring tests when
> using SQPOLL which seems like a bug to me, however I don't know how to
> reproduce it, as the error occurs randomly which leads to a kernel
> "freeze", I spend all day trying to figure out how to reproduce this
> error...any idea what the cause is?
>
> branch: for-5.11/io_uring
> last commit 34f98f655639b32f28c30c27dbbea57f8c304d9c
>
> (please don't waste your time as I'll take a look on the weekend)
>
> ---
> Josef Grieb
I forgot to mention that same cores are running at 100% cpu usage,
when error occurs
----
Josef Grieb
next parent reply other threads:[~2020-11-07 0:51 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CAAss7+pgQN7uPFaLakd+K4yZH6TRcMHELQV0wAA2NUxPpYEL_Q@mail.gmail.com>
2020-11-07 0:51 ` Josef [this message]
2020-11-07 12:10 ` Using SQPOLL for-5.11/io_uring kernel NULL pointer dereference Pavel Begunkov
2020-11-07 14:09 ` Josef
2020-11-07 16:28 ` Pavel Begunkov
2020-11-07 20:03 ` Pavel Begunkov
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