Unity8 crashed with sigsegv after touching on an alarm from the upcoming indicator (sync in progress)

Bug #1309162 reported by Ricardo Salveti on 2014-04-17
This bug affects 2 people
Affects Status Importance Assigned to Milestone
Gerry Boland
unity8 (Ubuntu)
Unity UI Team

Bug Description

current build number: 302
device name: mako
channel: ubuntu-touch/trusty-proposed
last update: 2014-04-17 11:40:41
version version: 302
version ubuntu: 20140417
version device: 20140411.3

Added a google account and it started to automatically sync my calendar. Before the sync was completed, I tried to touch at one of the alarms I had at the upcoming indicator, but unity8 crashed with a sigsegv as a result.

It seems that the event was removed after the sync was completed, so at that time the entry was probably not completely valid.

#0 0x00000080 in ?? ()
No symbol table info available.
#1 0xaa258cd6 in LauncherModel::applicationAdded (this=0xa8b09dc8, parent=..., row=<optimized out>) at /build/buildd/unity8-7.85+14.04.20140416/plugins/Unity/Launcher/launchermodel.cpp:297
        item = 0xa62db120
        _container_ = {c = {{p = {static shared_null = {ref = {atomic = {_q_value = -1}}, alloc = 0, begin = 0, end = 0, array = {0x0}}, d = 0xa8b12ed8}, d = 0xa8b12ed8}}, brk = 0, i = {i = 0xa8b12efc}, e = {i = 0xa8b12f00}}
        app = 0x9d336bb8
        found = <optimized out>
#2 0xb66ae6fc in QMetaObject::activate (sender=sender@entry=0xae697788, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=10, argv=argv@entry=0xb0bf08c8) at kernel/qobject.cpp:3569
        receiverInSameThread = <optimized out>
        sw = {receiver = 0xa8b09dc8, previousSender = 0x0, currentSender = {sender = 0xae697788, signal = 13, ref = 1}, switched = true}
        callFunction = 0xaa2626a1 <LauncherModel::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>
        receiver = 0xa8b09dc8
        method_relative = 2
        c = 0xa7861d50
        last = 0x9b53a028
        locker = {val = 3062049524}
        connectionLists = {connectionLists = 0xae698430}
        list = 0xae6984c0
        signal_index = 13
        empty_argv = {0x0}
        currentThreadId = 0xb0bf1450
        __PRETTY_FUNCTION__ = "static void QMetaObject::activate(QObject*, int, int, void**)"
#3 0xb66aea76 in QMetaObject::activate (sender=sender@entry=0xae697788, m=<optimized out>, local_signal_index=local_signal_index@entry=10, argv=argv@entry=0xb0bf08c8) at kernel/qobject.cpp:3444
No locals.
#4 0xb66f5724 in QAbstractItemModel::rowsInserted (this=this@entry=0xae697788, _t1=..., _t2=1, _t3=1) at .moc/moc_qabstractitemmodel.cpp:427
        _a = {0x0, 0xb0bf08f4, 0xb0bf08c4, 0xb0bf08c0}
#5 0xb6666528 in QAbstractItemModel::endInsertRows (this=this@entry=0xae697788) at itemmodels/qabstractitemmodel.cpp:2597
        d = 0xae697ff0
        change = {parent = {r = -1, c = -1, i = 0, m = 0x0}, first = 1, last = 1, needsAdjust = false}
#6 0xabfdd584 in unitymir::ApplicationManager::add (this=this@entry=0xae697788, application=application@entry=0x9d336bb8) at /build/buildd/unity-mir-0.3+14.04.20140417/src/modules/Unity/Application/application_manager.cpp:940
No locals.
#7 0xabfdd7cc in unitymir::ApplicationManager::onProcessStartReportReceived (this=0xae697788, appId=..., failure=<optimized out>) at /build/buildd/unity-mir-0.3+14.04.20140417/src/modules/Unity/Application/application_manager.cpp:484
        application = 0x9d336bb8
#8 0xb66ae418 in call (a=0xb0bf0a74, r=<optimized out>, this=0xae6a1800) at ../../include/QtCore/../../src/corelib/kernel/qobject_impl.h:132
No locals.

Related branches

Ricardo Salveti (rsalveti) wrote :
Michał Sawicz (saviq) on 2014-04-17
Changed in unity8:
assignee: nobody → Michael Zanetti (mzanetti)
Michał Sawicz (saviq) on 2014-05-22
Changed in unity8:
status: New → In Progress
Changed in unity8 (Ubuntu):
status: New → In Progress
assignee: nobody → Unity UI Team (unity-ui-team)
Michael Zanetti (mzanetti) wrote :

Gerry, I've added a workaround to prevent this crashing the shell. But we should really figure the main reason for this. Can you please enable the debug output in release builds for unity-mir?

Changed in unity-mir:
assignee: nobody → Gerry Boland (gerboland)
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package unity8 - 7.88+14.10.20140606-0ubuntu1

unity8 (7.88+14.10.20140606-0ubuntu1) utopic; urgency=low

  [ Michał Sawicz ]
  * Make lockscreen buttons translatable.

  [ Albert Astals ]
  * Correctly mark these functions as overrides
  * Remove connections to non existant signal
  * Better test name
  * Improvements for headerless categories LVPWH: No section name -> no
    header LVPWH: New hasSectionHeader context property for delegates
    GSV: Add topMargin if no hasSectionHeader (LP: #1326415)
  * Make tryVerticalJournal, tryHorizontalJournal and tryOrganicGrid
    work again

  [ Michael Zanetti ]
  * Don't crash when we get an invalid app from ApplicationManager (LP:

  [ Andrea Cimitan ]
  * Workaround for lp1324159 (LP: #1322233, #1324159)

  [ CI bot ]
  * Resync trunk

  [ Florian Boucault ]
  * Application startup: changed splash rectangle to be black instead of
    white and added a neat little animation. (LP: #1124265)
 -- Ubuntu daily release <email address hidden> Fri, 06 Jun 2014 11:38:53 +0000

Changed in unity8 (Ubuntu):
status: In Progress → Fix Released
Michał Sawicz (saviq) on 2014-06-07
Changed in unity8:
status: In Progress → Fix Released
Michał Sawicz (saviq) on 2017-03-13
no longer affects: unity8
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