Re: [Xen-devel] [xen-4.1-testing test] 9805: regressions - FAIL

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 16.11.11 at 23:23, xen.org <ian.jackson@xxxxxxxxxxxxx> wrote:
> flight 9805 xen-4.1-testing real [real]
> http://www.chiark.greenend.org.uk/~xensrcts/logs/9805/ 
> 
> Regressions :-(
> 
> Tests which did not succeed and are blocking:
>  test-i386-i386-pv             5 xen-boot                   fail REGR. vs. 
> 9756
>  test-amd64-amd64-xl-sedf      5 xen-boot                   fail REGR. vs. 
> 9756
>  test-amd64-amd64-pv           5 xen-boot                   fail REGR. vs. 
> 9756
>  test-amd64-i386-xl-multivcpu  5 xen-boot                   fail REGR. vs. 
> 9756
>  test-amd64-i386-rhel6hvm-intel  5 xen-boot                 fail REGR. vs. 
> 9756
>  test-amd64-i386-pv            5 xen-boot                   fail REGR. vs. 
> 9756
>  test-amd64-amd64-xl-pcipt-intel  5 xen-boot                fail REGR. vs. 
> 9756
>  test-i386-i386-xl             5 xen-boot                   fail REGR. vs. 
> 9756
>  test-amd64-i386-xl-credit2    5 xen-boot                   fail REGR. vs. 
> 9756
>  test-amd64-i386-rhel6hvm-amd  5 xen-boot                   fail REGR. vs. 
> 9756
>  test-amd64-i386-xl            5 xen-boot                   fail REGR. vs. 
> 9756
>  test-amd64-amd64-xl           5 xen-boot                   fail REGR. vs. 
> 9756
>  test-amd64-i386-xl-win-vcpus1  5 xen-boot                  fail REGR. vs. 
> 9756
>  test-amd64-amd64-win          5 xen-boot                   fail REGR. vs. 
> 9756
>  test-i386-i386-xl-win         5 xen-boot                   fail REGR. vs. 
> 9756
>  test-amd64-amd64-pair         8 xen-boot/dst_host          fail REGR. vs. 
> 9756
>  test-amd64-amd64-pair         7 xen-boot/src_host          fail REGR. vs. 
> 9756
>  test-i386-i386-pair           7 xen-boot/src_host          fail REGR. vs. 
> 9756
>  test-i386-i386-pair           8 xen-boot/dst_host          fail REGR. vs. 
> 9756
>  test-amd64-i386-pair          8 xen-boot/dst_host          fail REGR. vs. 
> 9756
>  test-amd64-i386-pair          7 xen-boot/src_host          fail REGR. vs. 
> 9756
>  test-amd64-i386-win-vcpus1    5 xen-boot                   fail REGR. vs. 
> 9756
>  test-amd64-amd64-xl-win       5 xen-boot                   fail REGR. vs. 
> 9756
>  test-amd64-i386-win           5 xen-boot                   fail REGR. vs. 
> 9756
>  test-i386-i386-win            5 xen-boot                   fail REGR. vs. 
> 9756

This is due to a bad backport of c/s 24007:0526644ad2a6: In -unstable,
evtchn_unmask() must be called with d->event_lock held, while in 4.1
the function acquires the lock (and now gets called with the lock already
held from do_physdev_op()'s case PHYSDEVOP_eoi). The change dates
back to 23573:584c2e5e03d9, which hardly is a candidate for backporting
(but maybe the locking change needs to be pulled out of there).

Jan


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