On Thu, 2007-12-06 at 23:04 -0700, Alex Williamson wrote:
> On Fri, 2007-12-07 at 13:53 +0800, Mu, Qin wrote:
> > Xen/IA64 Healthiness Report --- Cset #16540
> >
> > =================================================================
> > Test Result Summary:
> >
> > In this lightly validation for Cset# 16540, neither linux nor
> > window guest HVM could be created by using latest open guest firmware.
> > Fortunately, switching to use Intel guest firmware with "-c" option of
> > xm create command can avoid this problem.
> > To keep the auto lightly validation workable, the combination of
> > Intel guest firmware and "-c" option will be used as workaround for next
> > lightly validations of new Csets until the above problem is removed.
>
> This was an issue with the new 16550A UART driver in QEMU. Seems it
> wasn't dropping characters when there was no client to read them, so the
> GFW was probably stuck waiting for the clear to send signal. In my
> testing, either GFW works correctly with the -c option. You can also
> comment out the serial line in the domain config file to avoid the
> issue. This should be fixed on the next pull from upstream. Thanks,
I've merged us up with upstream, which brings in a partial solution
for this. Characters will timeout on the UART, but it takes a long
time. An HVM domain configured with serial=pty and nothing connected to
the console will take 2 minutes to boot (~10x longer than previous).
I'm still pushing the developer for a better solution, in the meantime,
you'll still need to work around the problem or wait a long time for the
HVM domain to boot. Thanks,
Alex
--
Alex Williamson HP Open Source & Linux Org.
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