From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tim Southerwood Subject: Re: 2.6.24-rc6 reproducible raid5 hang Date: Mon, 28 Jan 2008 17:29:42 +0000 Message-ID: <479E1106.5000106@dionic.net> References: <4797430E.2020603@dionic.net> <18327.31959.286239.480961@fisica.ufpr.br> <4798F577.20007@dionic.net> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <4798F577.20007@dionic.net> Sender: linux-raid-owner@vger.kernel.org To: linux-raid@vger.kernel.org List-Id: linux-raid.ids Subtitle: Patch to mainline yet? Hi I don't see evidence of Neil's patch in 2.6.24, so I applied it by hand on my server. Was that the correct thing to do, or did this issue get fixed in a different way that I wouldn't have spotted? I had a look at the git logs but it was not obvious - please pardon my ignorance, I'm not familiar enough with the code. Many thanks, Tim Tim Southerwood wrote: > Carlos Carvalho wrote: >> Tim Southerwood (ts@dionic.net) wrote on 23 January 2008 13:37: >> >Sorry if this breaks threaded mail readers, I only just subscribed >> to >the list so don;t have the original post to reply to. >> > >> >I believe I'm having the same problem. >> > >> >Regarding XFS on a raid5 md array: >> > >> >Kernels 2.6.22-14 (Ubuntu Gutsy generic and server builds) *and* >> >2.6.24-rc8 (pure build from virgin sources) compiled for amd64 arch. >> >> This has been corrected already, install Neil's patches. It worked for >> several people under high stress, including us. >> - >> To unsubscribe from this list: send the line "unsubscribe linux-raid" in >> the body of a message to majordomo@vger.kernel.org >> More majordomo info at http://vger.kernel.org/majordomo-info.html > > Hi > > I just coerced the patch into 2.6.23.14, reset > /sys/block/md1/md/stripe_cache_size to default (256) and rebooted. > > I can confirm that after 2 hours of heavy bashing[1] the system has not > hung. Looks good - many thanks. But I will run with a stripe_cache_size > of 4096 in practise as it improves write speen on my configuration about > 2.5 times. > > Cheers > > Tim > > > > [1] Rsync > 50GB to raid pluf xfs_fsr + dd 11GB of /dev/zero to same > filesystem. > - > To unsubscribe from this list: send the line "unsubscribe linux-raid" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html