From mboxrd@z Thu Jan 1 00:00:00 1970 From: Konstantinos Skarlatos Subject: Re: "md_raid5: page allocation failure" when resyncing on 3.2 Date: Tue, 10 Jan 2012 00:50:01 +0200 Message-ID: <4F0B6F19.7040903@gmail.com> References: <4F0B2303.4080109@gmail.com> <20120110003107.432e4542@natsu> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: In-Reply-To: <20120110003107.432e4542@natsu> Sender: linux-raid-owner@vger.kernel.org To: Roman Mamedov Cc: linux-raid List-Id: linux-raid.ids On =CE=94=CE=B5=CF=85=CF=84=CE=AD=CF=81=CE=B1, 9 =CE=99=CE=B1=CE=BD=CE=BF= =CF=85=CE=AC=CF=81=CE=B9=CE=BF=CF=82 2012 8:31:07 =CE=BC=CE=BC, Roman M= amedov wrote: > On Mon, 09 Jan 2012 19:25:23 +0200 > Konstantinos Skarlatos wrote: > >> Hello, i got this kernel message when i was resyncing my md raid 5 a= rray >> on a linux 3.2 machine. > > This probably doesn't have much to do with md, it is a generic Linux = kernel failure in the VM subsystem. > > If the search on bugzilla.kernel.org was up, I'd point you to bug num= bers (there was quite a lot of reports), but it isn't, so just see: > http://www.google.com/search?ie=3DUTF-8&q=3Dpage+allocation+failure > https://bugzilla.redhat.com/buglist.cgi?quicksearch=3Dpage+allocation= +failure > e.g.: "they are happening during heavy network and disk activity when= the system has plenty of memory free" > https://bugzilla.redhat.com/show_bug.cgi?id=3D551937 > and: "This is very common. e1000 attempts to do large memory allocat= ions from within interrupt context and the page allocator cannot satisf= y the allocation and is not allowed to do the necessary work to make th= e allocation attempt succeed. It's the same with all net drivers" > http://kerneltrap.org/mailarchive/linux-netdev/2009/4/13/5473414 > Thanks for the links, i will try some of the solutions offered there. > In your backtrace I see the system was also handling a network transf= er with the r8169 driver; do you use jumbo frames there (MTU over 1500)= ? Yes, i use jumbo frames. Will disabling them make things better or=20 worse? Kind regards, -- To unsubscribe from this list: send the line "unsubscribe linux-raid" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html