From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ian Campbell <ian.campbell@citrix.com>
Subject: Re: Problems with merlot* AMD Opteron 6376 systems (Was
 Re: stable trees (was: [xen-4.2-testing test] 58584: regressions))
Date: Fri, 26 Jun 2015 11:37:35 +0100
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Cc: Lars Kurth <lars.kurth@citrix.com>, Stefano Stabellini <stefano.stabellini@eu.citrix.com>, Andrew Cooper <Andrew.Cooper3@citrix.com>, Dario Faggioli <dario.faggioli@citrix.com>, Ian Jackson <Ian.Jackson@eu.citrix.com>, Aravind Gopalakrishnan <Aravind.Gopalakrishnan@amd.com>, Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>, Anthony Perard <anthony.perard@citrix.com>, xen-devel <xen-devel@lists.xenproject.org>, Boris Ostrovsky <boris.ostrovsky@oracle.com>
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On Wed, 2015-06-24 at 10:38 +0100, Ian Campbell wrote:
> TL;DR osstest is exposing issues running on "AMD Opteron(tm) Processor
> 6376" in at least a couple of test cases. It would be good if someone
> from AMD could have a look.

At Andy Cooper's request I ran a quick job with mtrr.show=true
http://logs.test-lab.xenproject.org/osstest/logs/58909/

I think the relevant serial output is:
Jun 26 09:57:42.325077 (XEN) MTRR default type: uncachable
Jun 26 09:57:42.325111 (XEN) MTRR fixed ranges enabled:
Jun 26 09:57:42.333068 (XEN)   00000-9ffff write-back
Jun 26 09:57:42.333101 (XEN)   a0000-bffff uncachable
Jun 26 09:57:42.333128 (XEN)   c0000-fffff write-back
Jun 26 09:57:42.341077 (XEN) MTRR variable ranges enabled:
Jun 26 09:57:42.341110 (XEN)   0 base 000000000000 mask ffff80000000 write-back
Jun 26 09:57:42.349088 (XEN)   1 base 000080000000 mask ffffc0000000 write-back
Jun 26 09:57:42.349124 (XEN)   2 disabled
Jun 26 09:57:42.357068 (XEN)   3 disabled
Jun 26 09:57:42.357098 (XEN)   4 disabled
Jun 26 09:57:42.357122 (XEN)   5 disabled
Jun 26 09:57:42.357147 (XEN)   6 disabled
Jun 26 09:57:42.365063 (XEN)   7 disabled

Ian.