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RE: [Xen-devel] copying large files over NFS locks up machine on-testing from Thursday


  • To: "Kip Macy" <kip.macy@xxxxxxxxx>
  • From: "Ian Pratt" <m+Ian.Pratt@xxxxxxxxxxxx>
  • Date: Sun, 22 May 2005 19:40:41 +0100
  • Cc: Chris Wright <chrisw@xxxxxxxx>, xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • Delivery-date: Sun, 22 May 2005 18:40:12 +0000
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: AcVe+3cSDlY4Kj13RpmCmHKi7s3W3gAATh5w
  • Thread-topic: [Xen-devel] copying large files over NFS locks up machine on-testing from Thursday

 
> I just updated to 2.0.6. Large NFS transfers work fine with 
> the default configuration. If xend has been started (i.e. the 
> bridge has been configured) the machine will become 
> unresponsive when copying a large file over NFS.

It would be good to see if you can reproduce this on native with a
bridge running.

Thanks,
Ian

> On 5/21/05, Kip Macy <kip.macy@xxxxxxxxx> wrote:
> >  > It sounds like the megaraid driver is unhappy. Can you reproduce 
> > this
> > > copying the file to /dev/null?
> > 
> > I think it was unhappy because its interrupts weren't being 
> serviced.
> > Copying /home/kmacy/suseroot.0 to /home/kmacy/suseroot.1 
> (NFS -> NFS) 
> > locks the machine up just fine. The machine will also become 
> > unresponsive transiently when running fsck in domU on a filesystem 
> > that is a loopback device mounted over NFS.
> > 
> > > It's worth checking the Dell site to make sure you have 
> the latest 
> > > megaraid firmware and driver.
> > 
> > Running native mainline 2.6.11.10 NFS transfers don't cause any 
> > problems. To reduce the possibility of it being a 
> benchmark-like SUE 
> > I'll do a clean build from scratch of the dom0 kernel.
> > 
> > 
> >         -Kip
> >
> 

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