Re: [xen-4.12-testing test] 161776: regressions - FAIL

[Ian Jackson <iwj@xxxxxxxxxxxxxx>]

osstest service owner writes ("[xen-4.12-testing test] 161776: regressions - 
FAIL"):
> flight 161776 xen-4.12-testing real [real]
> flight 161806 xen-4.12-testing real-retest [real]
> http://logs.test-lab.xenproject.org/osstest/logs/161776/
> http://logs.test-lab.xenproject.org/osstest/logs/161806/
> 
> Regressions :-(
> 
> Tests which did not succeed and are blocking,
> including tests which could not be run:
>  test-amd64-amd64-xl-qcow2    19 guest-localmigrate/x10   fail REGR. vs. 
> 159418

This has been failing for 48 days.

  
http://logs.test-lab.xenproject.org/osstest/logs/161776/test-amd64-amd64-xl-qcow2/19.ts-guest-localmigrate.log

shows this:

  libxl: error: libxl_dom_suspend.c:377:suspend_common_wait_guest_timeout: 
Domain
6:guest did not suspend, timed out

as the first thing that goes wrong.  This is after the guest has
acknowledged the suspend request.

osstest tried to bisect it but was not able to reproduce the basis
pass.  That means either that we got (un)lucky with the basis pass, or
that something not version-controlled by osstest is responsible.  In
this case I think the dom0 and domU kernels, as well as the usual
pieces, are all properly version controlled by osstest.  The non-Xen
userland tools are not but I doubt they are the cause.

So I think this is not a real regression.  In lieu of a fix, I propose
to force push 5984905b2638df87a0262d1ee91f0a6e14a86df6 to stable-4.12.

Ian.