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[Launchpad Bug Tracker <1585942@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package mesa - 12.0.1-3ubuntu2

---------------
mesa (12.0.1-3ubuntu2) yakkety; urgency=medium

  * debian/rules: Work around gcc ICE on ppc64el by forcing -O2.

 -- Adam Conrad <adconrad@xxxxxxxxxx>  Fri, 22 Jul 2016 16:46:48 -0600

** Changed in: mesa (Ubuntu)
       Status: Confirmed => Fix Released

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https://bugs.launchpad.net/bugs/1585942

Title:
  Mesa causes a segmentation fault on arm64 (wrong count of uniform
  locations)

Status in Canonical System Image:
  Fix Committed
Status in mesa package in Ubuntu:
  Fix Released
Status in ubuntu-system-settings-online-accounts package in Ubuntu:
  Fix Released
Status in webbrowser-app package in Ubuntu:
  Fix Released
Status in mesa source package in Xenial:
  Fix Committed
Status in ubuntu-system-settings-online-accounts source package in Xenial:
  New
Status in webbrowser-app source package in Xenial:
  New

Bug description:
  This error appeared when running unit tests for a QML app in our
  Jenkins/silo infrastructure, on arm64 only:
  https://launchpadlibrarian.net/261581280/buildlog_ubuntu-yakkety-arm64
  .ubuntu-system-settings-online-
  accounts_0.7+16.10.20160525.1-0ubuntu1_BUILDING.txt.gz

  Pasting the relevant lines here in case the link above goes away:

  =======================
  QT_PLUGIN_PATH=/usr/lib/aarch64-linux-gnu/qt5/plugins LD_LIBRARY_PATH=/usr/lib/aarch64-linux-gnu${LD_LIBRARY_PATH:+:$LD_LIBRARY_PATH} xvfb-run -s '-screen 0 640x480x24' -a dbus-test-runner -t   ./tst_online_accounts_qml
  DBus daemon: unix:abstract=/tmp/dbus-2tbhBHxLZq,guid=03f9df417d619b79067a68045745ad95
  task-0: Started with PID: 16930
  task-0: ********* Start testing of online_accounts_qml *********
  task-0: Config: Using QtTest library 5.5.1, Qt 5.5.1 (arm64-little_endian-lp64 shared (dynamic) release build; by GCC 5.3.1 20160519)
  task-0: PASS   : online_accounts_qml::AccountCreationPage::initTestCase()
  task-0: QWARN  : online_accounts_qml::AccountCreationPage::test_fallback() file:///dummy/path/testPlugin/Main.qml: File not found
  task-0: PASS   : online_accounts_qml::AccountCreationPage::test_fallback()
  task-0: QWARN  : online_accounts_qml::AccountCreationPage::test_flickable() file:///dummy/path/testPlugin/Main.qml: File not found
  task-0: PASS   : online_accounts_qml::AccountCreationPage::test_flickable()
  task-0: PASS   : online_accounts_qml::AccountCreationPage::cleanupTestCase()
  task-0: QWARN  : online_accounts_qml::UnknownTestFunc() QEGLPlatformContext: Failed to make temporary surface current, format not updated
  task-0: PASS   : online_accounts_qml::AuthorizationPage::initTestCase()
  task-0: QWARN  : online_accounts_qml::AuthorizationPage::test_1_one_account() file:///«BUILDDIR»/ubuntu-system-settings-online-accounts-0.7+16.10.20160525.1/online-accounts-ui/qml/AuthorizationPage.qml:54: TypeError: Cannot call method 'indexOf' of undefined
  task-0: PASS   : online_accounts_qml::AuthorizationPage::test_1_one_account()
  task-0: QWARN  : online_accounts_qml::AuthorizationPage::test_2_add_another(with button) file:///«BUILDDIR»/ubuntu-system-settings-online-accounts-0.7+16.10.20160525.1/online-accounts-ui/qml/AuthorizationPage.qml:54: TypeError: Cannot call method 'indexOf' of undefined
  task-0: QWARN  : online_accounts_qml::AuthorizationPage::test_2_add_another(with button) file:///«BUILDDIR»/ubuntu-system-settings-online-accounts-0.7+16.10.20160525.1/online-accounts-ui/qml/AuthorizationPage.qml:79:23: Unable to assign [undefined] to QString
  task-0: PASS   : online_accounts_qml::AuthorizationPage::test_2_add_another(with button)
  task-0: QWARN  : online_accounts_qml::AuthorizationPage::test_2_add_another(with button) [PERFORMANCE]: Last frame took 254 ms to render.
  task-0: QWARN  : online_accounts_qml::AuthorizationPage::test_2_add_another(without button) file:///«BUILDDIR»/ubuntu-system-settings-online-accounts-0.7+16.10.20160525.1/online-accounts-ui/qml/AuthorizationPage.qml:54: TypeError: Cannot call method 'indexOf' of undefined
  task-0: QWARN  : online_accounts_qml::AuthorizationPage::test_2_add_another(without button) file:///«BUILDDIR»/ubuntu-system-settings-online-accounts-0.7+16.10.20160525.1/online-accounts-ui/qml/AuthorizationPage.qml:79:23: Unable to assign [undefined] to QString
  task-0: PASS   : online_accounts_qml::AuthorizationPage::test_2_add_another(without button)
  task-0: QWARN  : online_accounts_qml::AuthorizationPage::test_2_add_another(without button) [PERFORMANCE]: Last frame took 210 ms to render.
  task-0: QWARN  : online_accounts_qml::AuthorizationPage::test_3_many_accounts(first account) [PERFORMANCE]: Last frame took 146 ms to render.
  task-0: QWARN  : online_accounts_qml::AuthorizationPage::test_3_many_accounts(first account) file:///«BUILDDIR»/ubuntu-system-settings-online-accounts-0.7+16.10.20160525.1/online-accounts-ui/qml/AuthorizationPage.qml:54: TypeError: Cannot call method 'indexOf' of undefined
  task-0: QWARN  : online_accounts_qml::AuthorizationPage::test_3_many_accounts(first account) file:///«BUILDDIR»/ubuntu-system-settings-online-accounts-0.7+16.10.20160525.1/online-accounts-ui/qml/AuthorizationPage.qml:79:23: Unable to assign [undefined] to QString
  task-0: PASS   : online_accounts_qml::AuthorizationPage::test_3_many_accounts(first account)
  Mesa 11.2.1 implementation error: Failed to link fixed function fragment shader: error: count of uniform locations > MAX_UNIFORM_LOCATIONS(4294967295 > 98304)

  Please report at https://bugs.freedesktop.org/enter_bug.cgi?product=Mesa
  task-0: Exited with status 139
  task-0: Shutting down
  DBus daemon: Shutdown
  =======================

  This happened 2 out of 2 times, after which I disabled running the
  unit tests for arm64.

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