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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: Sat, 21 May 2005 20:26:20 -0700
  • Cc: Chris Wright <chrisw@xxxxxxxx>, xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • Delivery-date: Sun, 22 May 2005 03:25:46 +0000
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  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>

 > 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.


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