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

  • To: Ian Pratt <m+Ian.Pratt@xxxxxxxxxxxx>
  • From: Kip Macy <kip.macy@xxxxxxxxx>
  • Date: Sun, 22 May 2005 11:24:09 -0700
  • Cc: Chris Wright <chrisw@xxxxxxxx>, xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • Delivery-date: Sun, 22 May 2005 18:23:35 +0000
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  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>

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.

I'll just skip migration testing for now.


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 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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