linux-kernel - Re: [v3.19-rc1] read_events => aio_read_events => WARNING: "do not call blocking ops when !TASK

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Date:	Wed, 24 Dec 2014 09:44:06 -0500
From:	Benjamin LaHaise <bcrl@...ck.org>
To:	Fam Zheng <famz@...hat.com>
Cc:	Bjørn Mork <bjorn@...k.no>, linux-aio@...ck.org,
	linux-kernel@...r.kernel.org
Subject: Re: [v3.19-rc1] read_events => aio_read_events => WARNING: "do not call blocking ops when !TASK_RUNNING"

On Wed, Dec 24, 2014 at 02:50:02PM +0800, Fam Zheng wrote:
> Could you trace down to the source code context of this io_getevents call in
> mysqld?  The change merely made io_getevents return a lot more quickly than
> before, so it seems like that a polling loop is spinning too fast as a result.

This warning is unrelated to your changes -- see my email exchange with Chris 
Mason for the details.

		-ben
-- 
"Thought is the essence of where you are now."
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/