From mboxrd@z Thu Jan 1 00:00:00 1970 From: Kip Macy Subject: Re: copying large files over NFS locks up machine on-testing from Thursday Date: Sun, 22 May 2005 12:24:50 -0700 Message-ID: References: Reply-To: Kip Macy Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Return-path: In-Reply-To: Content-Disposition: inline List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Ian Pratt Cc: Chris Wright , xen-devel List-Id: xen-devel@lists.xenproject.org It turns out it isn't bridging - the NFS lockup only happens if xend is running. If I start then stop xend and do a NFS transfer I don't hit any problems. Any idea what xend could be doing that would be making the system so unhappy? -Kip > It would be good to see if you can reproduce this on native with a > bridge running. >=20 > Thanks, > Ian >=20 > > On 5/21/05, Kip Macy wrote: > > > > It sounds like the megaraid driver is unhappy. Can you reproduce= =20 > > > this > > > > copying the file to /dev/null? > > >=20 > > > I think it was unhappy because its interrupts weren't being=20 > > serviced. > > > Copying /home/kmacy/suseroot.0 to /home/kmacy/suseroot.1=20 > > (NFS -> NFS)=20 > > > locks the machine up just fine. The machine will also become=20 > > > unresponsive transiently when running fsck in domU on a filesystem=20 > > > that is a loopback device mounted over NFS. > > >=20 > > > > It's worth checking the Dell site to make sure you have=20 > > the latest=20 > > > > megaraid firmware and driver. > > >=20 > > > Running native mainline 2.6.11.10 NFS transfers don't cause any=20 > > > problems. To reduce the possibility of it being a=20 > > benchmark-like SUE=20 > > > I'll do a clean build from scratch of the dom0 kernel. > > >=20 > > >=20 > > > -Kip > > > > >=20 >