From: Josef <[email protected]>
To: Pavel Begunkov <[email protected]>
Cc: Jens Axboe <[email protected]>,
Norman Maurer <[email protected]>,
Dmitry Kadashev <[email protected]>,
io-uring <[email protected]>
Subject: Re: "Cannot allocate memory" on ring creation (not RLIMIT_MEMLOCK)
Date: Sun, 20 Dec 2020 08:13:52 +0100 [thread overview]
Message-ID: <CAAss7+peDoeEf8PL_REiU6s_wZ+Z=ZPMcWNdYt0i-C8jUwtc4Q@mail.gmail.com> (raw)
In-Reply-To: <[email protected]>
> Guys, do you share rings between processes? Explicitly like sending
> io_uring fd over a socket, or implicitly e.g. sharing fd tables
> (threads), or cloning with copying fd tables (and so taking a ref
> to a ring).
no in netty we don't share ring between processes
> In other words, if you kill all your io_uring applications, does it
> go back to normal?
no at all, the io-wq worker thread is still running, I literally have
to restart the vm to go back to normal(as far as I know is not
possible to kill kernel threads right?)
> Josef, can you test the patch below instead? Following Jens' idea it
> cancels more aggressively when a task is killed or exits. It's based
> on [1] but would probably apply fine to for-next.
it works, I run several tests with eventfd read op async flag enabled,
thanks a lot :) you are awesome guys :)
--
Josef
next prev parent reply other threads:[~2020-12-20 7:14 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-17 8:19 "Cannot allocate memory" on ring creation (not RLIMIT_MEMLOCK) Dmitry Kadashev
2020-12-17 8:26 ` Norman Maurer
2020-12-17 8:36 ` Dmitry Kadashev
2020-12-17 8:40 ` Dmitry Kadashev
2020-12-17 10:38 ` Josef
2020-12-17 11:10 ` Dmitry Kadashev
2020-12-17 13:43 ` Victor Stewart
2020-12-18 9:20 ` Dmitry Kadashev
2020-12-18 17:22 ` Jens Axboe
2020-12-18 15:26 ` Jens Axboe
2020-12-18 17:21 ` Josef
2020-12-18 17:23 ` Jens Axboe
2020-12-19 2:49 ` Josef
2020-12-19 16:13 ` Jens Axboe
2020-12-19 16:29 ` Jens Axboe
2020-12-19 17:11 ` Jens Axboe
2020-12-19 17:34 ` Norman Maurer
2020-12-19 17:38 ` Jens Axboe
2020-12-19 20:51 ` Josef
2020-12-19 21:54 ` Jens Axboe
2020-12-19 23:13 ` Jens Axboe
2020-12-19 23:42 ` Josef
2020-12-19 23:42 ` Pavel Begunkov
2020-12-20 0:25 ` Jens Axboe
2020-12-20 0:55 ` Pavel Begunkov
2020-12-21 10:35 ` Dmitry Kadashev
2020-12-21 10:49 ` Dmitry Kadashev
2020-12-21 11:00 ` Dmitry Kadashev
2020-12-21 15:36 ` Pavel Begunkov
2020-12-22 3:35 ` Pavel Begunkov
2020-12-22 4:07 ` Pavel Begunkov
2020-12-22 11:04 ` Dmitry Kadashev
2020-12-22 11:06 ` Dmitry Kadashev
2020-12-22 13:13 ` Dmitry Kadashev
2020-12-22 16:33 ` Pavel Begunkov
2020-12-23 8:39 ` Dmitry Kadashev
2020-12-23 9:38 ` Dmitry Kadashev
2020-12-23 11:48 ` Dmitry Kadashev
2020-12-23 12:27 ` Pavel Begunkov
2020-12-20 1:57 ` Pavel Begunkov
2020-12-20 7:13 ` Josef [this message]
2020-12-20 13:00 ` Pavel Begunkov
2020-12-20 14:19 ` Pavel Begunkov
2020-12-20 15:56 ` Josef
2020-12-20 15:58 ` Pavel Begunkov
2020-12-20 16:14 ` Jens Axboe
2020-12-20 16:59 ` Josef
2020-12-20 18:23 ` Josef
2020-12-20 18:41 ` Pavel Begunkov
2020-12-21 8:22 ` Josef
2020-12-21 15:30 ` Pavel Begunkov
2020-12-21 10:31 ` Dmitry Kadashev
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