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Re: [Xen-devel] [xen-4.12-testing test] 144059: regressions - FAIL
- To: Jan Beulich <jbeulich@xxxxxxxx>, osstest service owner <osstest-admin@xxxxxxxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
- Date: Wed, 13 Nov 2019 15:03:05 +0000
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- Delivery-date: Wed, 13 Nov 2019 15:03:16 +0000
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- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
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On 13/11/2019 14:42, Jan Beulich wrote:
> On 13.11.2019 12:55, osstest service owner wrote:
>> flight 144059 xen-4.12-testing real [real]
>> http://logs.test-lab.xenproject.org/osstest/logs/144059/
>>
>> Regressions :-(
>>
>> Tests which did not succeed and are blocking,
>> including tests which could not be run:
>> test-amd64-amd64-qemuu-nested-intel 17 debian-hvm-install/l1/l2 fail REGR.
>> vs. 144035
> From looking at this some I get the impression that the L2 guest
> is busy-waiting in its boot loader. Seeing that the same test
> also failed for 4.11, it doesn't seem entirely impossible that
> the fixes for the two XSAs have caused a regression here. Any
> other thoughts / insights anyone?
OSSTest has no hardware which is impacted by 305, so I'm fairly
confident ruling that out. (For affected hardware, it is only boot-time
changes.)
(XEN) CPU Vendor: Intel, Family 6 (0x6), Model 60 (0x3c), Stepping 3
(raw 000306c3)
This is a Haswell box, so is impacted by 304. (Its actually the same
CPU as my main dev box so has had a *lot* of testing in this area...)
L0 reports:
(XEN) VMX: Disabling executable EPT superpages due to CVE-2018-12207
as expected.
L1 should find that it is virtualised and turn off the mitigation, but
we don't get that far during boot. I can't see how the nested-virt
aspect would be relevant at this point, so I can't reason about what
might have gone wrong.
~Andrew
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