As per the agreement, the xenial-based builders seem to be now running a newer custom kernel (4.4.0-42-generic) that seems to no longer segfault on QML code for arm64.
I suppose we can set the kernel task as Fix Released? Since I suppose CONFIG_ARM64_VA_BITS=48 is the right way to go, with Qt just needing to support it properly. This way at least we won't need to think about SRUing it to xenial to get things unblocked. Also, our touch arm64 xenial devices are unaffected as they're still using the old kernel, so no blockers here. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1630906 Title: QML segfault on arm64 due to builder kernel change Status in linux package in Ubuntu: Confirmed Status in online-accounts-api package in Ubuntu: New Status in qmenumodel package in Ubuntu: New Status in qtdeclarative-opensource-src package in Ubuntu: New Status in ubuntu-push-qml package in Ubuntu: New Status in unity8 package in Ubuntu: New Status in webbrowser-app package in Ubuntu: New Bug description: Builders were changed from wily to xenial (4.4) kernel for arm64, and likely due to this the following kind of errors started happening: https://launchpadlibrarian.net/288487533/buildlog_ubuntu-yakkety-arm64 .ubuntu-push-qml_0.1+15.10.20150826.1-0ubuntu2_BUILDING.txt.gz They happen when executing QML code. I've ruled out that reverting to previous qtbase and qtdeclarative versions don't affect this, so it's not coming from a Qt change. I've also verified there's no problem eg on our Bq tablet running the same tests on xenial+overlay. There are currently no found changes at least in Qt upstream to backport arm64 related fixes. Cause is unknown. But the same problem is there on vivid, xenial and yakkety builds: https://launchpadlibrarian.net/288516465/buildlog_ubuntu-yakkety-arm64.online-accounts-api_0.1+16.10.20161006.1-0ubuntu1_BUILDING.txt.gz https://launchpadlibrarian.net/288515705/buildlog_ubuntu-xenial-arm64.online-accounts-api_0.1+16.04.20161006.1-0ubuntu1_BUILDING.txt.gz https://launchpadlibrarian.net/288515510/buildlog_ubuntu-vivid-arm64.online-accounts-api_0.1+15.04.20161006.1-0ubuntu1_BUILDING.txt.gz This means it does not matter if it's Qt 5.4 or 5.6, GCC 4.9, 5 or 6, or glibc 2.21, 2.23 or 2.24. More logs from affected packages: https://launchpadlibrarian.net/288493058/buildlog_ubuntu-yakkety-arm64.qtdeclarative-opensource-src_5.6.1-7ubuntu3~1_BUILDING.txt.gz https://launchpadlibrarian.net/288347391/buildlog_ubuntu-xenial-arm64.webbrowser-app_0.23+16.04.20161005.1-0ubuntu1_BUILDING.txt.gz https://launchpadlibrarian.net/288385063/buildlog_ubuntu-vivid-arm64.qmenumodel_0.2.10+15.04.20161005.1-0ubuntu1_BUILDING.txt.gz To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1630906/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
