Re: [Xen-devel] [xen-unstable test] 112855: regressions - trouble: blocked/broken/fail/pass

[Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>]

On 08/25/2017 09:40 AM, Jan Beulich wrote:
>>>> On 25.08.17 at 05:15, <osstest-admin@xxxxxxxxxxxxxx> wrote:
>> flight 112855 xen-unstable real [real]
>> http://logs.test-lab.xenproject.org/osstest/logs/112855/ 
>>
>> Regressions :-(
>>
>> Tests which did not succeed and are blocking,
>> including tests which could not be run:
>>  test-amd64-i386-examine       7 reboot                   fail REGR. vs. 
>> 112809
>>  test-amd64-i386-freebsd10-amd64  7 xen-boot              fail REGR. vs. 
>> 112809
> These two are watchdog NMIs during the loading of Dom0. Most
> likely candidate for introducing the issue is Boris' scrub series.


I haven't been able to reproduce this but perhaps adding
process_pending_softirqs() in alloc_heap_pages() and free_heap_pages()
loops if CONFIG_SCRUB_DEBUG is set might help?

One other thing that also comes to mind is that there is probably no
reason to scrub (and in some cases poison) pages during dom0 creation.

-boris

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