Re: [Xen-devel] [xen-unstable test] 62968: regressions - FAIL

[Wei Liu <wei.liu2@xxxxxxxxxx>]

On Thu, Oct 15, 2015 at 04:52:07PM +0100, Andrew Cooper wrote:
> On 15/10/15 16:26, Wei Liu wrote:
> > On Thu, Oct 15, 2015 at 04:21:02PM +0100, Wei Liu wrote:
> >> On Thu, Oct 15, 2015 at 02:45:47PM +0000, osstest service owner wrote:
> >>> flight 62968 xen-unstable real [real]
> >>> http://logs.test-lab.xenproject.org/osstest/logs/62968/
> >>>
> >>> Regressions :-(
> >>>
> >>> Tests which did not succeed and are blocking,
> >>> including tests which could not be run:
> >>>  test-amd64-i386-xl-qemuu-debianhvm-amd64-xsm 9 debian-hvm-install fail 
> >>> REGR. vs. 62711
> >> Oct 15 02:59:53.981151 (d1) [    0.000000] console [tty0] enabled
> >> Oct 15 02:59:53.981213 (d1) [    0.000000] console [hvc0] enabled
> >> Oct 15 02:59:53.989101 (d1) [    0.000000] bootconsole [xenboot0] disabled
> >> Oct 15 02:59:53.989168 (XEN) traps.c:3287: GPF (0000): ffff82d080195e22 -> 
> >> ffff82d080244d91
> >>
> >> Don't know what to make of this.
> >>
> > According to
> > http://logs.test-lab.xenproject.org/osstest/results/history/test-amd64-i386-xl-qemuu-debianhvm-amd64-xsm/xen-unstable
> >
> > This failure is the first of its kind in xen-unstable flight.
> >
> > According to
> > http://logs.test-lab.xenproject.org/osstest/results/history/test-amd64-i386-xl-qemuu-debianhvm-amd64-xsm/ALL
> >
> > There were similar errors in other branches, but the actual symptom is
> > different -- there was no sign of GP fault.
> 
> Do you have the debug hypervisor to hand?  `addr2line -e xen-syms
> ffff82d080195e22` will give you some clues.
> 
> This was a #GP fault which had a extable entry for it, which means it
> was expected to possibly fault.  At a complete guess, possibly an rdmsr
> emulation for a PV guest.
> 

The current conclusion is that this is actually a toolstack bug that
manifests later. I will look into it.

Wei.

> ~Andrew

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