Re: [Xen-devel] [xen-unstable test] 18454: regressions - FAIL

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 18.07.13 at 08:24, xen.org <ian.jackson@xxxxxxxxxxxxx> wrote:
> flight 18454 xen-unstable real [real]
> http://www.chiark.greenend.org.uk/~xensrcts/logs/18454/ 
> 
> Regressions :-(
> 
> Tests which did not succeed and are blocking,
> including tests which could not be run:
>  test-amd64-amd64-xl-qemuu-winxpsp3 10 guest-saverestore.2 fail REGR. vs. 
> 18431
>  test-amd64-i386-xl-qemut-winxpsp3-vcpus1 7 windows-install fail REGR. vs. 
> 18431

So this isn't a race after all (but I'm nevertheless glad the races
should now all be dealt with):

Jul 18 03:28:20.051054 (XEN) vmap(ffff82c000209000:0x2)
Jul 18 03:29:15.995060 (XEN) vunmap(ffff82c000209000:0x3)

> Regressions which are regarded as allowable (not blocking):
>  test-amd64-i386-qemut-rhel6hvm-intel  7 redhat-install         fail like 
> 18431

Jul 18 02:28:33.727064 (XEN) vmap(ffff82c000209000:0x2)
Jul 18 02:28:39.375057 (XEN) vunmap(ffff82c000209000:0x3)

Something is mapping 2 pages and then unmapping three, thus
apparently destroying an earlier mapping. What I still need to
understand is why the guard page that we put between vmap
regions doesn't cover that (or in fact trigger some assertion).

Jan


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