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

[Kip Macy <kip.macy@xxxxxxxxx>]

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.
> 
> 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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