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: Sat, 21 May 2005 16:40:38 -0700 Message-ID: References: <20050521183920.GJ19113@shell0.pdx.osdl.net> 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: Chris Wright Cc: xen-devel List-Id: xen-devel@lists.xenproject.org It appears to be isolated to Cambridge's 2.6.11.10 - I just built an unmodified 2.6.11.10 and copied the 3GB file over NFS without issue. I'm 5 for 5 locking up -testing's 2.6.11.10 so I think it isn't an issue with mainline. -Kip On 5/21/05, Kip Macy wrote: > I just tried copying the 3GB file over NFS from within a domU on > -testing in hopes of getting some debug info. dom0 became unresponsive > for a few seconds after close to a minute. It had successfully copied > 2.3GB when I hit ^C and then started a copy from NFS to the domU's / > which itself is a loopback device mounted over NFS in dom0 - shortly > thereafter the machine locked up, the only output being complaints > from megaraid about aborted SCSI commands. It seems possible that this > is a dom0 issue. >=20 > I'll try building a stock linux 2.6.11.10 kernel with the same non-xen > options as the Cambridge kernel to see if it has the same issues. > After that I'll just stick to having everything on local disk until I > get moved to a GigE network at which point I can start testing > migration. >=20 >=20 >=20 > -Kip >=20 >=20 > On 5/21/05, Chris Wright wrote: > > * Kip Macy (kip.macy@gmail.com) wrote: > > > I've locked up my dom0 a couple of times this morning copying a 3GB > > > file from local disk to an NFS mount(neither xend nor guests running)= . > > > I don't encounter this problem on the stock CentOS 4 kernel. The > > > machine is a PowerEdge 2850 with 2 e1000 cards - the one in use is > > > connected to a PowerConnect 2216 10/100 switch and has negotiated > > > 100Mbit. I'll check if the stock Cambridge isn't negotiating full > > > duplex but that shouldn't cause lockups. > > > > > > My mount options are: > > > defaults,intr,rsize=3D32768,wsize=3D32768,nfsvers=3D3,tcp,timeo=3D600 > > > > Hmm, I've seen this on stock 2.6.11 kernels as well (no xen). Any chan= ce > > you can get useful debugging out it? > > > > thanks, > > -chris > > >