Ubuntu
qtmir package

unity8 crashed with SIGSEGV in qtmir::DBusFocusInfo::findQmlSurface()

Bug #1670710 reported by errors.ubuntu.com bug bridge
28
This bug affects 5 people
Affects Status Importance Assigned to Milestone
Canonical System Image
Fix Released
Critical
Michał Sawicz
Canonical System Image u8c-1 "Unity8 on Classic"
qtmir (Ubuntu)
Fix Released
Critical
Daniel d'Andrada

Bug Description

The Ubuntu Error Tracker has been receiving reports about a problem regarding unity8. This problem was most recently seen with package version 8.15+17.04.20170131.1-0ubuntu1, the problem page at https://errors.ubuntu.com/problem/6c8f5eebbdc847336cb6f24ed0ec0bed558f565d contains more details, including versions of packages affected, stacktrace or traceback, and individual crash reports.
If you do not have access to the Ubuntu Error Tracker you can request it at http://forms.canonical.com/reports/.

in particular, the experience of this can be felt by launching 2 applications both needing xmir.
using ppa from https://bileto.ubuntu.com/#/ticket/2531 (which is currently u-a-l change for launching xmir apps on zesty u8)

See original description

Related branches

lp:~dandrader/qtmir/dbusFocusInfoCrash
Gerry Boland (community): Approve
Unity8 CI Bot (community): Approve (continuous-integration)
Diff: 37 lines (+13/-12)
1 file modified
src/modules/Unity/Application/dbusfocusinfo.cpp (+13/-12)
Revision history for this message
Launchpad Janitor (janitor) wrote :

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in unity8 (Ubuntu):
status: New → Confirmed
Michał Sawicz (saviq)
affects: unity8 (Ubuntu) → qtmir (Ubuntu)
Changed in qtmir (Ubuntu):
status: Confirmed → New
Michał Sawicz (saviq)
Changed in canonical-devices-system-image:
status: New → Triaged
importance: Undecided → High
assignee: nobody → Michał Sawicz (saviq)
milestone: none → u8c-1
importance: High → Critical
Changed in qtmir (Ubuntu):
status: New → Triaged
importance: Undecided → Critical
Gerry Boland (gerboland)
Changed in qtmir (Ubuntu):
assignee: nobody → Daniel d'Andrada (dandrader)
kevin gunn (kgunn72)
tags: added: unity8-desktop
description: updated
description: updated
Daniel d'Andrada (dandrader)
Changed in qtmir (Ubuntu):
status: Triaged → In Progress
Revision history for this message
kevin gunn (kgunn72) wrote :

hmm, i thought this was just 2 xmir-apps, but just experienced it with opening ubuntu-terminal right after opening LO.

Revision history for this message
Daniel van Vugt (vanvugt) wrote :

Give it a more sane title that fits in tables/reports :)

summary: - /usr/bin/unity8:11:qtmir::DBusFocusInfo::findQmlSurface:qtmir::DBusFocusInfo::isSurfaceFocused:qtmir::DBusFocusInfo::qt_static_metacall:qtmir::DBusFocusInfo::qt_metacall:QDBusConnectionPrivate::deliverCall
+ unity8 crashed with SIGSEGV in qtmir::DBusFocusInfo::findQmlSurface()
Changed in canonical-devices-system-image:
status: Triaged → In Progress
Revision history for this message
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package qtmir - 0.5.1+17.04.20170307-0ubuntu1

---------------
qtmir (0.5.1+17.04.20170307-0ubuntu1) zesty; urgency=medium

  [ Albert Astals Cid ]
  * Fix clang build

  [ Daniel d'Andrada ]
  * Some qtmir::Session fixes
  * Make TaskController absorb SessionManager
  * Don't pass command line arguments to Mir
  * Reduce default log verbosity (LP: #1664151)
  * DBusFocusInfo: fix crash when trying to access a null session from
    an application (LP: #1670710)

  [ Gerry Boland ]
  * Workaround for Mir changing GL state unexpectedly on Qt, breaking
    font rendering. (LP: #1583088)

  [ Lukáš Tinkl ]
  * Use the shell chrome, as provided by miral window info (LP:
    #1658117)

 -- Lukáš Tinkl <email address hidden> Tue, 07 Mar 2017 23:43:16 +0000

Changed in qtmir (Ubuntu):
status: In Progress → Fix Released
Michał Sawicz (saviq)
Changed in canonical-devices-system-image:
status: In Progress → Fix Released
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