From mboxrd@z Thu Jan 1 00:00:00 1970 From: Domenico Andreoli Subject: Re: [BUG REPORT] [mm-hotplug, aio] aio ring_pages can't be offlined Date: Fri, 30 Nov 2012 16:24:21 +0100 Message-ID: <20121130152421.GA19849@glitch> References: <1354172098-5691-1-git-send-email-linfeng@cn.fujitsu.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: akpm@linux-foundation.org, viro@zeniv.linux.org.uk, bcrl@kvack.org, kamezawa.hiroyu@jp.fujitsu.com, mhocko@suse.cz, hughd@google.com, cl@linux.com, mgorman@suse.de, minchan@kernel.org, isimatu.yasuaki@jp.fujitsu.com, laijs@cn.fujitsu.com, wency@cn.fujitsu.com, tangchen@cn.fujitsu.com, linux-fsdevel@vger.kernel.org, linux-aio@kvack.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org To: Lin Feng Return-path: Content-Disposition: inline In-Reply-To: <1354172098-5691-1-git-send-email-linfeng@cn.fujitsu.com> Sender: owner-linux-aio@kvack.org List-Id: linux-fsdevel.vger.kernel.org On Thu, Nov 29, 2012 at 02:54:58PM +0800, Lin Feng wrote: > Hi all, Hi Lin, > We encounter a "Resource temporarily unavailable" fail while trying > to offline a memory section in a movable zone. We found that there are > some pages can't be migrated. The offline operation fails in function > migrate_page_move_mapping() returning -EAGAIN till timeout because > the if assertion 'page_count(page) != 1' fails. is this something that worked before? if yes (then it's a regression) do you know with which kernel? Thanks, Domenico -- To unsubscribe, send a message with 'unsubscribe linux-aio' in the body to majordomo@kvack.org. For more info on Linux AIO, see: http://www.kvack.org/aio/ Don't email: aart@kvack.org