Re: [Xen-devel] [xen-4.3-testing test] 63948: regressions - FAIL

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 11.11.15 at 12:25, <ian.campbell@xxxxxxxxxx> wrote:
> On Wed, 2015-11-11 at 03:58 -0700, Jan Beulich wrote:
>> > > > On 10.11.15 at 18:59, <osstest-admin@xxxxxxxxxxxxxx> wrote:
>> > flight 63948 xen-4.3-testing real [real]
>> > http://logs.test-lab.xenproject.org/osstest/logs/63948/ 
>> > 
>> > Regressions :-(
>> > 
>> > Tests which did not succeed and are blocking,
>> > including tests which could not be run:
>> >  test-amd64-amd64-migrupgrade 21 guest-migrate/src_host/dst_host fail
>> > REGR. vs. 63212
>> 
>> This having failed for quite some time, I've finally looked more closely
>> and found
>> 
>> Nov 10 14:36:16.949051 (XEN) vmce.c:88: PV restore: unsupported MCA
>> capabilities 0x1000802 for d1:v0 (supported: 0)
>> 
>> to be the reason for the EPERM here
>> 
>> xc: error: Couldn't set extended vcpu0 info (1 = Operation not
>> permitted): Internal error
>> 
>> Taking apart the value, it is MCG_SER_P | MCG_TES_P (the low 8 bits
>> get masked out anyway), which is in line with 4.2's GUEST_MCG_CAP.
>> Hence I would guess that previous successful runs of this test would
>> have been on Intel systems only; I can't see how this test would ever
>> succeed on AMD ones.
> 
> FWIW you can find the history of any given test at a URL like:
> http://logs.test-lab.xenproject.org/osstest/results/history/test-amd64-amd64 
> -migrupgrade/xen-4.3-testing.html
> 
> Figuring out the arch of the machines is a bit of a faff, especially since
> some of the relevant logs no longer exist. From
> http://logs.test-lab.xenproject.org/osstest/results/host/huxelrebe0.html 
> http://logs.test-lab.xenproject.org/osstest/results/host/godello0.html 
> http://logs.test-lab.xenproject.org/osstest/results/host/pinot0.html 
> 
> I found recent logs which confirm (via the serial log):
> Huxelrebe:
>     CPU0: Intel(R) Xeon(R) CPU E3-1225 v3 @ 3.20GHz stepping 03
> Godello:
>     CPU0: Intel(R) Xeon(R) CPU E3-1220 v3 @ 3.10GHz stepping 03
> Pinot:
>     CPU0: AMD Opteron(tm) Processor 3350 HE               stepping 00
> 
> With Huxelrebe passing and godello and pinot failing this doesn't seem to
> correlate with your investigation though.

Looking at that history page you point me to, I see passes on
godello.

>>  Considering that 4.3 is out of maintenance, I
>> think the only reasonable change to avoid endless failure here is to
>> limit this test to Intel systems for this version.
> 
> Aside from the above I don't think osstest is currently aware of the vendor
> of the processors (although I can certainly think of several reasons it
> should be).
> 
> But given this is a new test case I would be happy, I think, to restrict it
> to only go back as far as the earliest release which was in maintenance at
> the time the test was introduced (August this year), or maybe (if something
> just dropped out of maintenance recently) just the ones maintained today
> (since it took a while for the test case to "bed in" and be made working on
> some of the older ones). FWIW the last related fix I see in osstest was
> early October.

That would be fine too.

Jan



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