Re: [Xen-devel] [xen-unstable test] 57852: regressions - FAIL

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 10.06.15 at 14:56, <ian.campbell@xxxxxxxxxx> wrote:
> On Wed, 2015-06-10 at 12:48 +0100, Jan Beulich wrote:
>>  But I guess you could at least check
>> what microcode the box has in use - if there's nothing newer available,
>> then trying to get the microcode updating working isn't of immediate
>> importance anymore (but of course it would still be nice to have in
>> place).
> 
> I logged into fiano1 while it was running under Xen:
> 
> cpuinfo contains (just the first processor for brevity):
> 
> processor     : 0
> vendor_id     : GenuineIntel
> cpu family    : 6
> model         : 62
> model name    : Intel(R) Xeon(R) CPU E5-2403 v2 @ 1.80GHz
> stepping      : 4
> microcode     : 0x416

Peeking into the microcode files I have lying around, 0x428 ought to
be available for that family+model+stepping.

>> > Can't we get Intel involved right away?
>> 
>> Sure we can; I just generally prefer not to bother people with
>> problems they already solved, but maybe that's the wrong approach
>> a case like this.
> 
> Is the list of errata fixed by a given ucode update public? If not then
> I think we've done sufficient due diligence that we should feel ok to
> ask, even if the answer turns out to be fixed in microcode.

No, Intel isn't doing as good a job as AMD in that regard.

Jan


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