Re: [Xen-devel] Paravirtualised drivers for fully virtualised domains, rev9

[Steven Smith <sos22-xen@xxxxxxxxxxxxx>]

> > > Here is what I have found so far in trying to chase down the cause of the
> > > slowdown.
> > > The qemu-dm process is running 99.9% of the CPU on dom0.
> > That seems very wrong.  When I try this, the device model is almost
> > completely idle.  Could you see what strace says, please, or if there
> > are any strange messages in the /var/log/qemu-dm. file?
> I've been looking into bugzilla 725 and I'm also seeing 100% cpu usage
> by qemu-dm.  xm-test uses the nographic flag and I find that if this is
> not set then the cpu usage drops to normal levels and the test passes.
Does the attached patch help?

Steven.

fix_qemu_blocking.diff
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