linux-kernel - hanging aio process

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Message-ID: <alpine.LFD.2.11.1405191908450.1847@denkbrett>
Date:	Mon, 19 May 2014 19:38:51 +0200 (CEST)
From:	Sebastian Ott <sebott@...ux.vnet.ibm.com>
To:	Anatol Pomozov <anatol.pomozov@...il.com>,
	Benjamin LaHaise <bcrl@...ck.org>
cc:	linux-aio@...ck.org, linux-kernel@...r.kernel.org
Subject: hanging aio process

Hello,

on the latest kernel a fio job with 4 workers using libaio hangs.

git bisect points to:
	commit e02ba72aabfade4c9cd6e3263e9b57bf890ad25c
	Author: Anatol Pomozov <anatol.pomozov@...il.com>
	Date:   Tue Apr 15 11:31:33 2014 -0700

	    aio: block io_destroy() until all context requests are completed


The fio workers are on the wait_for_completion in sys_io_destroy.

Regards,
Sebastian
View attachment "fio.job" of type "TEXT/PLAIN" (235 bytes)