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Re: [Xen-devel] [qemu-upstream-4.6-testing test] 67093: regressions - FAIL



Hi Stefano,

On Thu, 2015-12-24 at 21:26 +0000, osstest service owner wrote:
> flight 67093 qemu-upstream-4.6-testing real [real]
> http://logs.test-lab.xenproject.org/osstest/logs/67093/
> 
> Regressions :-(
> 
> Tests which did not succeed and are blocking,
> including tests which could not be run:
> Âtest-amd64-amd64-xl-qemuu-ovmf-amd64 9 debian-hvm-install fail REGR. vs. 
> 63071
> Âtest-amd64-i386-xl-qemuu-ovmf-amd64ÂÂ9 debian-hvm-install fail REGR. vs. 
> 63071

There are instances of these two failures for all qemu-upstream-4.[456]-
testing branches on list this morning.

I can't see any for qemu-upstream-unstable.

The 4.2 and 4.3 testing branches are blocked by an unrelated build failure
(related to upgrading the build hosts to Jessie, I think). I wouldn't be at
all surprised if they also suffered from this issue once that is fixed.

Ian.

> 
> Regressions which are regarded as allowable (not blocking):
> Âtest-armhf-armhf-xl-rtdsÂÂÂÂÂÂ9 debian-installÂÂÂÂÂÂÂÂÂÂÂÂfail REGR. vs.
> 63071
> Âtest-amd64-i386-xl-qemuu-win7-amd64 16 guest-stopÂÂÂÂÂÂÂÂÂÂÂÂÂÂfail like
> 63071
> Âtest-amd64-amd64-xl-qemuu-win7-amd64 16 guest-stopÂÂÂÂÂÂÂÂÂÂÂÂÂfail like
> 63071
> 
> Tests which did not succeed, but are not blocking:
> Âtest-amd64-amd64-xl-pvh-amdÂÂ11 guest-
> startÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂfailÂÂÂnever pass
> Âtest-amd64-amd64-xl-pvh-intel 11 guest-
> startÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂfailÂÂnever pass
> Âtest-armhf-armhf-libvirtÂÂÂÂÂ14 guest-
> saverestoreÂÂÂÂÂÂÂÂÂÂÂÂfailÂÂÂnever pass
> Âtest-armhf-armhf-libvirtÂÂÂÂÂ12 migrate-support-
> checkÂÂÂÂÂÂÂÂfailÂÂÂnever pass
> Âtest-amd64-amd64-libvirt-xsm 12 migrate-support-
> checkÂÂÂÂÂÂÂÂfailÂÂÂnever pass
> Âtest-amd64-i386-libvirtÂÂÂÂÂÂ12 migrate-support-
> checkÂÂÂÂÂÂÂÂfailÂÂÂnever pass
> Âtest-amd64-amd64-qemuu-nested-amd 16 debian-hvm-install/l1/l2ÂÂfail
> never pass
> Âtest-amd64-i386-libvirt-xsmÂÂ12 migrate-support-
> checkÂÂÂÂÂÂÂÂfailÂÂÂnever pass
> Âtest-armhf-armhf-libvirt-xsm 12 migrate-support-
> checkÂÂÂÂÂÂÂÂfailÂÂÂnever pass
> Âtest-armhf-armhf-libvirt-xsm 14 guest-
> saverestoreÂÂÂÂÂÂÂÂÂÂÂÂfailÂÂÂnever pass
> Âtest-amd64-amd64-libvirtÂÂÂÂÂ12 migrate-support-
> checkÂÂÂÂÂÂÂÂfailÂÂÂnever pass
> Âtest-armhf-armhf-xl-credit2ÂÂ13 saverestore-support-
> checkÂÂÂÂfailÂÂÂnever pass
> Âtest-armhf-armhf-xl-credit2ÂÂ12 migrate-support-
> checkÂÂÂÂÂÂÂÂfailÂÂÂnever pass
> Âtest-amd64-i386-libvirt-qemuu-debianhvm-amd64-xsm 10 migrate-support-
> check fail never pass
> Âtest-armhf-armhf-xl-arndaleÂÂ12 migrate-support-
> checkÂÂÂÂÂÂÂÂfailÂÂÂnever pass
> Âtest-armhf-armhf-xl-arndaleÂÂ13 saverestore-support-
> checkÂÂÂÂfailÂÂÂnever pass
> Âtest-armhf-armhf-xlÂÂÂÂÂÂÂÂÂÂ12 migrate-support-
> checkÂÂÂÂÂÂÂÂfailÂÂÂnever pass
> Âtest-armhf-armhf-xlÂÂÂÂÂÂÂÂÂÂ13 saverestore-support-
> checkÂÂÂÂfailÂÂÂnever pass
> Âtest-armhf-armhf-xl-xsmÂÂÂÂÂÂ13 saverestore-support-
> checkÂÂÂÂfailÂÂÂnever pass
> Âtest-armhf-armhf-xl-xsmÂÂÂÂÂÂ12 migrate-support-
> checkÂÂÂÂÂÂÂÂfailÂÂÂnever pass
> Âtest-amd64-amd64-libvirt-qemuu-debianhvm-amd64-xsm 10 migrate-support-
> check fail never pass
> Âtest-amd64-amd64-libvirt-vhd 11 migrate-support-
> checkÂÂÂÂÂÂÂÂfailÂÂÂnever pass
> Âtest-armhf-armhf-libvirt-raw 13 guest-
> saverestoreÂÂÂÂÂÂÂÂÂÂÂÂfailÂÂÂnever pass
> Âtest-armhf-armhf-libvirt-raw 11 migrate-support-
> checkÂÂÂÂÂÂÂÂfailÂÂÂnever pass
> Âtest-armhf-armhf-xl-cubietruck 12 migrate-support-checkÂÂÂÂÂÂÂÂfail
> never pass
> Âtest-armhf-armhf-xl-cubietruck 13 saverestore-support-checkÂÂÂÂfail
> never pass
> Âtest-armhf-armhf-xl-vhdÂÂÂÂÂÂ11 migrate-support-
> checkÂÂÂÂÂÂÂÂfailÂÂÂnever pass
> Âtest-armhf-armhf-xl-vhdÂÂÂÂÂÂ12 saverestore-support-
> checkÂÂÂÂfailÂÂÂnever pass
> Âtest-armhf-armhf-xl-multivcpu 13 saverestore-support-
> checkÂÂÂÂfailÂÂnever pass
> Âtest-armhf-armhf-xl-multivcpu 12 migrate-support-
> checkÂÂÂÂÂÂÂÂfailÂÂnever pass
> Âtest-armhf-armhf-libvirt-qcow2 11 migrate-support-checkÂÂÂÂÂÂÂÂfail
> never pass
> Âtest-armhf-armhf-libvirt-qcow2 13 guest-saverestoreÂÂÂÂÂÂÂÂÂÂÂÂfail
> never pass
> 
> version targeted for testing:
> ÂqemuuÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂ9e304f572ac98265f5e7433b6490077962acda97
> baseline version:
> ÂqemuuÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂ980dfcf5b8d8161871f81d1987b2f8ea5d7d4db9
> 
> Last test of basisÂÂÂÂ63071ÂÂ2015-10-19 15:10:58 ZÂÂÂ66 days
> Testing same sinceÂÂÂÂ66535ÂÂ2015-12-18 15:50:42 ZÂÂÂÂ6 daysÂÂÂÂ5
> attempts
> 
> ------------------------------------------------------------
> People who touched revisions under test:
> Â Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
> 
> jobs:
> Âbuild-amd64-xsmÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂpassÂÂÂÂ
> Âbuild-armhf-xsmÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂpassÂÂÂÂ
> Âbuild-i386-xsmÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂpassÂÂÂÂ
> Âbuild-amd64ÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂpassÂÂÂÂ
> Âbuild-armhfÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂpassÂÂÂÂ
> Âbuild-i386ÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂpassÂÂÂÂ
> Âbuild-amd64-libvirtÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂpassÂÂÂÂ
> Âbuild-armhf-libvirtÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂpassÂÂÂÂ
> Âbuild-i386-libvirtÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂpassÂÂÂÂ
> Âbuild-amd64-pvopsÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂpassÂÂÂÂ
> Âbuild-armhf-pvopsÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂpassÂÂÂÂ
> Âbuild-i386-pvopsÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂpassÂÂÂÂ
> Âtest-amd64-amd64-xlÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂpassÂÂÂÂ
> Âtest-armhf-armhf-xlÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂpassÂÂÂÂ
> Âtest-amd64-i386-xlÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂpassÂÂÂÂ
> Âtest-amd64-amd64-libvirt-qemuu-debianhvm-amd64-xsmÂÂÂÂÂÂÂÂÂÂÂpassÂÂÂÂ
> Âtest-amd64-i386-libvirt-qemuu-debianhvm-amd64-xsmÂÂÂÂÂÂÂÂÂÂÂÂpassÂÂÂÂ
> Âtest-amd64-amd64-xl-qemuu-debianhvm-amd64-xsmÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂpassÂÂÂÂ
> Âtest-amd64-i386-xl-qemuu-debianhvm-amd64-xsmÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂpassÂÂÂÂ
> Âtest-amd64-amd64-libvirt-xsmÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂpassÂÂÂÂ
> Âtest-armhf-armhf-libvirt-xsmÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂfailÂÂÂÂ
> Âtest-amd64-i386-libvirt-xsmÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂpassÂÂÂÂ
> Âtest-amd64-amd64-xl-xsmÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂpassÂÂÂÂ
> Âtest-armhf-armhf-xl-xsmÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂpassÂÂÂÂ
> Âtest-amd64-i386-xl-xsmÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂpassÂÂÂÂ
> Âtest-amd64-amd64-qemuu-nested-amdÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂfailÂÂÂÂ
> Âtest-amd64-amd64-xl-pvh-amdÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂfailÂÂÂÂ
> Âtest-amd64-i386-qemuu-rhel6hvm-amdÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂpassÂÂÂÂ
> Âtest-amd64-amd64-xl-qemuu-debianhvm-amd64ÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂpassÂÂÂÂ
> Âtest-amd64-i386-xl-qemuu-debianhvm-amd64ÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂpassÂÂÂÂ
> Âtest-amd64-i386-freebsd10-amd64ÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂpassÂÂÂÂ
> Âtest-amd64-amd64-xl-qemuu-ovmf-amd64ÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂfailÂÂÂÂ
> Âtest-amd64-i386-xl-qemuu-ovmf-amd64ÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂfailÂÂÂÂ
> Âtest-amd64-amd64-xl-qemuu-win7-amd64ÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂfailÂÂÂÂ
> Âtest-amd64-i386-xl-qemuu-win7-amd64ÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂfailÂÂÂÂ
> Âtest-armhf-armhf-xl-arndaleÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂpassÂÂÂÂ
> Âtest-amd64-amd64-xl-credit2ÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂpassÂÂÂÂ
> Âtest-armhf-armhf-xl-credit2ÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂpassÂÂÂÂ
> Âtest-armhf-armhf-xl-cubietruckÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂpassÂÂÂÂ
> Âtest-amd64-i386-freebsd10-i386ÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂpassÂÂÂÂ
> Âtest-amd64-amd64-qemuu-nested-intelÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂpassÂÂÂÂ
> Âtest-amd64-amd64-xl-pvh-intelÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂfailÂÂÂÂ
> Âtest-amd64-i386-qemuu-rhel6hvm-intelÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂpassÂÂÂÂ
> Âtest-amd64-amd64-libvirtÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂpassÂÂÂÂ
> Âtest-armhf-armhf-libvirtÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂfailÂÂÂÂ
> Âtest-amd64-i386-libvirtÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂpassÂÂÂÂ
> Âtest-amd64-amd64-xl-multivcpuÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂpassÂÂÂÂ
> Âtest-armhf-armhf-xl-multivcpuÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂpassÂÂÂÂ
> Âtest-amd64-amd64-pairÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂpassÂÂÂÂ
> Âtest-amd64-i386-pairÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂpassÂÂÂÂ
> Âtest-amd64-amd64-libvirt-pairÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂpassÂÂÂÂ
> Âtest-amd64-i386-libvirt-pairÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂpassÂÂÂÂ
> Âtest-amd64-amd64-amd64-pvgrubÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂpassÂÂÂÂ
> Âtest-amd64-amd64-i386-pvgrubÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂpassÂÂÂÂ
> Âtest-amd64-amd64-pygrubÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂpassÂÂÂÂ
> Âtest-armhf-armhf-libvirt-qcow2ÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂfailÂÂÂÂ
> Âtest-amd64-amd64-xl-qcow2ÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂpassÂÂÂÂ
> Âtest-armhf-armhf-libvirt-rawÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂfailÂÂÂÂ
> Âtest-amd64-i386-xl-rawÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂpassÂÂÂÂ
> Âtest-amd64-amd64-xl-rtdsÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂpassÂÂÂÂ
> Âtest-armhf-armhf-xl-rtdsÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂfailÂÂÂÂ
> Âtest-amd64-i386-xl-qemuu-winxpsp3-vcpus1ÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂpassÂÂÂÂ
> Âtest-amd64-amd64-libvirt-vhdÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂpassÂÂÂÂ
> Âtest-armhf-armhf-xl-vhdÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂpassÂÂÂÂ
> Âtest-amd64-amd64-xl-qemuu-winxpsp3ÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂpassÂÂÂÂ
> Âtest-amd64-i386-xl-qemuu-winxpsp3ÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂpassÂÂÂÂ
> 
> 
> ------------------------------------------------------------
> sg-report-flight on osstest.test-lab.xenproject.org
> logs: /home/logs/logs
> images: /home/logs/images
> 
> Logs, config files, etc. are available at
> ÂÂÂÂhttp://logs.test-lab.xenproject.org/osstest/logs
> 
> Explanation of these reports, and of osstest in general, is at
> ÂÂÂÂhttp://xenbits.xen.org/gitweb/?p=osstest.git;a=blob;f=README.email;hb
> =master
> ÂÂÂÂhttp://xenbits.xen.org/gitweb/?p=osstest.git;a=blob;f=README;hb=maste
> r
> 
> Test harness code can be found at
> ÂÂÂÂhttp://xenbits.xen.org/gitweb?p=osstest.git;a=summary
> 
> 
> Not pushing.
> 
> ------------------------------------------------------------
> commit 9e304f572ac98265f5e7433b6490077962acda97
> Author: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
> Date:ÂÂÂFri Dec 18 15:10:09 2015 +0000
> 
> ÂÂÂÂxenfb: avoid reading twice the same fields from the shared page
> ÂÂÂÂ
> ÂÂÂÂReading twice the same field could give the guest an attack of
> ÂÂÂÂopportunity. In the case of event->type, gcc could compile the switch
> ÂÂÂÂstatement into a jump table, effectively ending up reading the type
> ÂÂÂÂfield multiple times.
> ÂÂÂÂ
> ÂÂÂÂThis is part of XSA-155.
> ÂÂÂÂ
> ÂÂÂÂSigned-off-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
> 
> commit fdd64c7720b98af20c9e63ae04b868d06341bfdc
> Author: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
> Date:ÂÂÂFri Dec 18 15:09:58 2015 +0000
> 
> ÂÂÂÂxen/blkif: Avoid double access to src->nr_segments
> ÂÂÂÂ
> ÂÂÂÂsrc is stored in shared memory and src->nr_segments is dereferenced
> ÂÂÂÂtwice at the end of the function.ÂÂIf a compiler decides to compile
> this
> ÂÂÂÂinto two separate memory accesses then the size limitation could be
> ÂÂÂÂbypassed.
> ÂÂÂÂ
> ÂÂÂÂFix it by removing the double access to src->nr_segments.
> ÂÂÂÂ
> ÂÂÂÂThis is part of XSA-155.
> ÂÂÂÂ
> ÂÂÂÂSigned-off-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
> 
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@xxxxxxxxxxxxx
> http://lists.xen.org/xen-devel
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