Re: [Xen-devel] [adhoc osstest bisection] complete test-amd64-amd64-xl

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 21.05.15 at 11:16, <ian.campbell@xxxxxxxxxx> wrote:
> The osstest instance in Cambridge appears to have found a machine
> specific failure which a bisect has blamed on the "x86/domctl: cleanup"
> patch below.
> 
> (NB: this is not the arm releated leak check thing which is currently
> hitting the xen-unstable flights in the main osstest instance)
> 
> Since the logs are internal I've put a copy of the bisection output at
> http://xenbits.xen.org/people/ianc/tmp/bisect.osstest.test-amd64-amd64-xl..h 
> tml
> 
> Along with the logs of the first two passes from the last good revision:
> http://xenbits.xen.org/people/ianc/tmp/37537/ 
> http://xenbits.xen.org/people/ianc/tmp/37541/ 
> and the logs from the first two fails from the first bad revision:
> http://xenbits.xen.org/people/ianc/tmp/37540/ 
> http://xenbits.xen.org/people/ianc/tmp/37542/ 
> 
> The failure is in migration at e.g.
> 
> http://xenbits.xen.org/people/ianc/tmp/37540/test-amd64-amd64-xl/17.ts-guest 
> -localmigrate.log
> 
> Anyone got any thoughts on this?

Reviewing the change another time, I see nothing. Unless Andrew
has an idea, I think we'd need to revert the patch in smaller chunks
to get an understanding what's going on here. The only thing I
could remotely imagine would be something writing over the
boundaries of a stack variable, of which we may now have got a
few more of.

Jan


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