Bug 360949 - Taskbar disappears because Plasmashell quits unexpectedly
Summary: Taskbar disappears because Plasmashell quits unexpectedly
Status: RESOLVED DUPLICATE of bug 356523
Alias: None
Product: plasmashell
Classification: Plasma
Component: general (show other bugs)
Version: 5.5.5
Platform: Slackware Linux
: NOR crash
Target Milestone: 1.0
Assignee: David Edmundson
URL:
Keywords: drkonqi
Depends on:
Blocks:
 
Reported: 2016-03-24 19:02 UTC by Alan Aversa
Modified: 2016-03-28 23:56 UTC (History)
2 users (show)

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Latest Commit:
Version Fixed In:

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Description Alan Aversa 2016-03-24 19:02:27 UTC 
Application: plasmashell (5.5.5)

Qt Version: 5.5.1
Operating System: Linux 4.4.6 x86_64
Distribution (Platform): Slackware Packages

-- Information about the crash:
- What I was doing when the application crashed:
I was opening FireFox, and then plasmashell quit (taskbar disappeared)

- Unusual behavior I noticed:
None

- Custom settings of the application:
Nothing special that I know of.

The crash can be reproduced sometimes.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f0aac1047c0 (LWP 5115))]

Thread 8 (Thread 0x7f0a947a6700 (LWP 5123)):
#0  0x00007f0aa3ba930d in poll () at /lib64/libc.so.6
#1  0x00007f0aa9f4f102 in  () at /usr/lib64/libxcb.so.1
#2  0x00007f0aa9f50c8f in xcb_wait_for_event () at /usr/lib64/libxcb.so.1
#3  0x00007f0a965c34b9 in  () at /usr/lib64/libQt5XcbQpa.so.5
#4  0x00007f0aa47b1f3f in  () at /usr/lib64/libQt5Core.so.5
#5  0x00007f0aa2f1a684 in start_thread () at /lib64/libpthread.so.0
#6  0x00007f0aa3bb4efd in clone () at /lib64/libc.so.6

Thread 7 (Thread 0x7f0a91756700 (LWP 5146)):
#0  0x00007f0a9f00a7e9 in g_mutex_lock () at /usr/lib64/libglib-2.0.so.0
#1  0x00007f0a9efc7916 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f0a9efc7a5c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f0aa49d5c3b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#4  0x00007f0aa497ff5a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007f0aa47ad13c in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#6  0x00007f0aa8a365d5 in  () at /usr/lib64/libQt5Qml.so.5
#7  0x00007f0aa47b1f3f in  () at /usr/lib64/libQt5Core.so.5
#8  0x00007f0aa2f1a684 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f0aa3bb4efd in clone () at /lib64/libc.so.6

Thread 6 (Thread 0x7f0a80934700 (LWP 5148)):
#0  0x00007f0a9efc4b61 in  () at /usr/lib64/libglib-2.0.so.0
#1  0x00007f0a9efc6f1b in g_main_context_prepare () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f0a9efc7883 in  () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f0a9efc7a5c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#4  0x00007f0aa49d5c3b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007f0aa497ff5a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#6  0x00007f0aa47ad13c in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#7  0x00007f0aa8a365d5 in  () at /usr/lib64/libQt5Qml.so.5
#8  0x00007f0aa47b1f3f in  () at /usr/lib64/libQt5Core.so.5
#9  0x00007f0aa2f1a684 in start_thread () at /lib64/libpthread.so.0
#10 0x00007f0aa3bb4efd in clone () at /lib64/libc.so.6

Thread 5 (Thread 0x7f0a7adcc700 (LWP 5149)):
#0  0x00007f0a9efc4b27 in  () at /usr/lib64/libglib-2.0.so.0
#1  0x00007f0a9efc731a in g_main_context_check () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f0a9efc78f8 in  () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f0a9efc7a5c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#4  0x00007f0aa49d5c3b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007f0aa497ff5a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#6  0x00007f0aa47ad13c in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#7  0x00007f0aa8a365d5 in  () at /usr/lib64/libQt5Qml.so.5
#8  0x00007f0aa47b1f3f in  () at /usr/lib64/libQt5Core.so.5
#9  0x00007f0aa2f1a684 in start_thread () at /lib64/libpthread.so.0
#10 0x00007f0aa3bb4efd in clone () at /lib64/libc.so.6

Thread 4 (Thread 0x7f0a794c1700 (LWP 5151)):
#0  0x00007f0aa2f2036f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f0aab8091c4 in  () at /usr/lib64/libQt5Script.so.5
#2  0x00007f0aab809209 in  () at /usr/lib64/libQt5Script.so.5
#3  0x00007f0aa2f1a684 in start_thread () at /lib64/libpthread.so.0
#4  0x00007f0aa3bb4efd in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7f09f289e700 (LWP 5229)):
#0  0x00007f0aa3ba930d in poll () at /lib64/libc.so.6
#1  0x00007f0a9efc7954 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f0a9efc7a5c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f0aa49d5c3b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#4  0x00007f0aa497ff5a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007f0aa47ad13c in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#6  0x00007f09e7989e87 in KCupsConnection::run() () at /usr/lib64/libkcupslib.so
#7  0x00007f0aa47b1f3f in  () at /usr/lib64/libQt5Core.so.5
#8  0x00007f0aa2f1a684 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f0aa3bb4efd in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7f09e683c700 (LWP 5248)):
#0  0x00007f0aa3ba930d in poll () at /lib64/libc.so.6
#1  0x00007f0a9efc7954 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f0a9efc7a5c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f0aa49d5c3b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#4  0x00007f0aa497ff5a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007f0aa47ad13c in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#6  0x00007f0aa95b9aa2 in  () at /usr/lib64/libQt5Quick.so.5
#7  0x00007f0aa47b1f3f in  () at /usr/lib64/libQt5Core.so.5
#8  0x00007f0aa2f1a684 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f0aa3bb4efd in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7f0aac1047c0 (LWP 5115)):
[KCrash Handler]
#6  0x00007f0aa5d766d0 in QWidget::windowHandle() const () at /usr/lib64/libQt5Widgets.so.5
#7  0x00007f09ea42a3d1 in  () at /usr/lib64/qt5/qml/org/kde/plasma/private/taskmanager/libtaskmanagerplugin.so
#8  0x00007f0aa49bb648 in  () at /usr/lib64/libQt5Core.so.5
#9  0x00007f0aa49aff2b in QObject::event(QEvent*) () at /usr/lib64/libQt5Core.so.5
#10 0x00007f0aa5d4d11c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#11 0x00007f0aa5d52236 in QApplication::notify(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#12 0x00007f0aa49823f3 in QCoreApplication::notifyInternal(QObject*, QEvent*) () at /usr/lib64/libQt5Core.so.5
#13 0x00007f0aa49d4acd in QTimerInfoList::activateTimers() () at /usr/lib64/libQt5Core.so.5
#14 0x00007f0aa49d4fe1 in  () at /usr/lib64/libQt5Core.so.5
#15 0x00007f0a9efc7787 in g_main_context_dispatch () at /usr/lib64/libglib-2.0.so.0
#16 0x00007f0a9efc79b8 in  () at /usr/lib64/libglib-2.0.so.0
#17 0x00007f0a9efc7a5c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#18 0x00007f0aa49d5c1f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#19 0x00007f0aa497ff5a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#20 0x00007f0aa4987aed in QCoreApplication::exec() () at /usr/lib64/libQt5Core.so.5
#21 0x00000000004349d7 in main ()

Reported using DrKonqi
Comment 1 David Edmundson 2016-03-28 23:56:03 UTC 

*** This bug has been marked as a duplicate of bug 356523 ***