Bug 351265

Summary: plasmashell segfault after login
Product: [Plasma] plasmashell Reporter: giacof <giacof>
Component: generalAssignee: David Edmundson <kde>
Status: RESOLVED DUPLICATE    
Severity: crash CC: bhush94, plasma-bugs
Priority: NOR Keywords: drkonqi
Version: 5.2.2   
Target Milestone: 1.0   
Platform: Ubuntu   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description giacof 2015-08-13 19:08:19 UTC 
Application: plasmashell (5.2.2)

Qt Version: 5.4.1
Operating System: Linux 3.19.0-26-generic x86_64
Distribution: Ubuntu 15.04

-- Information about the crash:
- What I was doing when the application crashed:

Just switched from intel to nvidia card (sudo prime-select nvidia) and reboot.
Using Kubuntu 15.04,  kernel 3.19.0-26

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
[Current thread is 1 (Thread 0x7f7fa46cb7c0 (LWP 2329))]

Thread 23 (Thread 0x7f7f8e503700 (LWP 2331)):
#0  0x00007f7f9f4838dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f7fa19f0b72 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f7fa19f264f in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f7f91092099 in QXcbEventReader::run (this=0x7b5cf0) at qxcbconnection.cpp:1105
#4  0x00007f7f9fb04b0e in QThreadPrivate::start (arg=0x7b5cf0) at thread/qthread_unix.cpp:337
#5  0x00007f7f9ed0a6aa in start_thread (arg=0x7f7f8e503700) at pthread_create.c:333
#6  0x00007f7f9f48eeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 22 (Thread 0x7f7f87fff700 (LWP 2332)):
#0  0x00007f7f9bb8f3db in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f7f9bb8fde8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7f9bb8ffcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7f9fd9bc6c in QEventDispatcherGlib::processEvents (this=0x7f7f800008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f7f9fd403e2 in QEventLoop::exec (this=this@entry=0x7f7f87ffede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f7f9faffb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f7fa188df65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f7f9fb04b0e in QThreadPrivate::start (arg=0x8b9d20) at thread/qthread_unix.cpp:337
#8  0x00007f7f9ed0a6aa in start_thread (arg=0x7f7f87fff700) at pthread_create.c:333
#9  0x00007f7f9f48eeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 21 (Thread 0x7f7f7d96a700 (LWP 2333)):
#0  0x00007f7f9bbd47a4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f7f9bb8f3f0 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7f9bb8fde8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7f9bb8ffcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7f9fd9bc6c in QEventDispatcherGlib::processEvents (this=0x7f7f780008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f7f9fd403e2 in QEventLoop::exec (this=this@entry=0x7f7f7d969de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f7f9faffb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f7fa188df65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f7f9fb04b0e in QThreadPrivate::start (arg=0xc8db40) at thread/qthread_unix.cpp:337
#9  0x00007f7f9ed0a6aa in start_thread (arg=0x7f7f7d96a700) at pthread_create.c:333
#10 0x00007f7f9f48eeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 20 (Thread 0x7f7f771b1700 (LWP 2337)):
#0  0x00007f7f9fafce0f in testAndSetRelaxed<QMutexData*> (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=0x1, _q_value=@0xdef418: 0x0) at ../../include/QtCore/../../src/corelib/arch/qatomic_x86.h:259
#1  testAndSetRelease<QMutexData*, QMutexData*> (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=0x1, _q_value=@0xdef418: 0x0) at ../../include/QtCore/../../src/corelib/thread/qgenericatomic.h:175
#2  testAndSetRelease (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=0x1, this=this@entry=0xdef418) at ../../include/QtCore/../../src/corelib/thread/qbasicatomic.h:272
#3  fastTryUnlock (current=<synthetic pointer>, this=this@entry=0xdef418) at thread/qmutex.h:85
#4  QMutex::unlock (this=this@entry=0xdef418) at thread/qmutex.cpp:264
#5  0x00007f7f9fd9b5b5 in unlock (this=<synthetic pointer>) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:138
#6  ~QMutexLocker (this=<synthetic pointer>, __in_chrg=<optimized out>) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:132
#7  canWaitLocked (this=<optimized out>) at ../../include/QtCore/5.4.1/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:244
#8  postEventSourcePrepare (timeout=<synthetic pointer>, s=0x7f7f680012d0) at kernel/qeventdispatcher_glib.cpp:254
#9  postEventSourceCheck (source=0x7f7f680012d0) at kernel/qeventdispatcher_glib.cpp:264
#10 0x00007f7f9bb8f8c1 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f7f9bb8fe60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007f7f9bb8ffcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#13 0x00007f7f9fd9bc6c in QEventDispatcherGlib::processEvents (this=0x7f7f680008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#14 0x00007f7f9fd403e2 in QEventLoop::exec (this=this@entry=0x7f7f771b0de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#15 0x00007f7f9faffb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#16 0x00007f7fa188df65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#17 0x00007f7f9fb04b0e in QThreadPrivate::start (arg=0xdef240) at thread/qthread_unix.cpp:337
#18 0x00007f7f9ed0a6aa in start_thread (arg=0x7f7f771b1700) at pthread_create.c:333
#19 0x00007f7f9f48eeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 19 (Thread 0x7f7f761b0700 (LWP 2338)):
#0  0x00007f7f9bbd47a4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f7f9bb8f3f0 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7f9bb8fde8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7f9bb8ffcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7f9fd9bc6c in QEventDispatcherGlib::processEvents (this=0x7f7f6c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f7f9fd403e2 in QEventLoop::exec (this=this@entry=0x7f7f761afde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f7f9faffb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f7fa188df65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f7f9fb04b0e in QThreadPrivate::start (arg=0xeda860) at thread/qthread_unix.cpp:337
#9  0x00007f7f9ed0a6aa in start_thread (arg=0x7f7f761b0700) at pthread_create.c:333
#10 0x00007f7f9f48eeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 18 (Thread 0x7f7f7517f700 (LWP 2339)):
#0  0x00007f7f9bb8cec7 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f7f9bb8f39b in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7f9bb8fde8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7f9bb8ffcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7f9fd9bc6c in QEventDispatcherGlib::processEvents (this=0x7f7f600008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f7f9fd403e2 in QEventLoop::exec (this=this@entry=0x7f7f7517ede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f7f9faffb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f7fa188df65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f7f9fb04b0e in QThreadPrivate::start (arg=0xfc8e40) at thread/qthread_unix.cpp:337
#9  0x00007f7f9ed0a6aa in start_thread (arg=0x7f7f7517f700) at pthread_create.c:333
#10 0x00007f7f9f48eeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 17 (Thread 0x7f7f67fff700 (LWP 2340)):
#0  0x00007f7f9bb8cf02 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f7f9bb8f7ef in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7f9bb8fe60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7f9bb8ffcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7f9fd9bc6c in QEventDispatcherGlib::processEvents (this=0x7f7f5c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f7f9fd403e2 in QEventLoop::exec (this=this@entry=0x7f7f67ffede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f7f9faffb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f7fa188df65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f7f9fb04b0e in QThreadPrivate::start (arg=0x10c91a0) at thread/qthread_unix.cpp:337
#9  0x00007f7f9ed0a6aa in start_thread (arg=0x7f7f67fff700) at pthread_create.c:333
#10 0x00007f7f9f48eeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 16 (Thread 0x7f7f66f6e700 (LWP 2341)):
#0  0x00007f7f9fd9aff3 in timerSourcePrepare (source=<optimized out>, timeout=0x7f7f66f6dc14) at kernel/qeventdispatcher_glib.cpp:161
#1  0x00007f7f9bb8f3fd in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7f9bb8fde8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7f9bb8ffcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7f9fd9bc6c in QEventDispatcherGlib::processEvents (this=0x7f7f540008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f7f9fd403e2 in QEventLoop::exec (this=this@entry=0x7f7f66f6dde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f7f9faffb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f7fa188df65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f7f9fb04b0e in QThreadPrivate::start (arg=0x11ac7e0) at thread/qthread_unix.cpp:337
#9  0x00007f7f9ed0a6aa in start_thread (arg=0x7f7f66f6e700) at pthread_create.c:333
#10 0x00007f7f9f48eeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 15 (Thread 0x7f7f65e6d700 (LWP 2342)):
#0  0x00007f7f9f4838dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f7f9bb8febc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7f9bb8ffcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7f9fd9bc6c in QEventDispatcherGlib::processEvents (this=0x7f7f580008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f7f9fd403e2 in QEventLoop::exec (this=this@entry=0x7f7f65e6cde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f7f9faffb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f7fa188df65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f7f9fb04b0e in QThreadPrivate::start (arg=0x129ec50) at thread/qthread_unix.cpp:337
#8  0x00007f7f9ed0a6aa in start_thread (arg=0x7f7f65e6d700) at pthread_create.c:333
#9  0x00007f7f9f48eeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 14 (Thread 0x7f7f64d6c700 (LWP 2343)):
#0  0x00007fff1fb90d18 in clock_gettime ()
#1  0x00007f7f9f49d38d in __GI___clock_gettime (clock_id=<optimized out>, tp=<optimized out>) at ../sysdeps/unix/clock_gettime.c:115
#2  0x00007f7f9fbbacb6 in qt_clock_gettime (ts=0x7f7f64d6bb40, clock=<optimized out>) at tools/qelapsedtimer_unix.cpp:105
#3  do_gettime (frac=<synthetic pointer>, sec=<synthetic pointer>) at tools/qelapsedtimer_unix.cpp:161
#4  qt_gettime () at tools/qelapsedtimer_unix.cpp:170
#5  0x00007f7f9fd99639 in QTimerInfoList::updateCurrentTime (this=this@entry=0x7f7f4c002ed0) at kernel/qtimerinfo_unix.cpp:84
#6  0x00007f7f9fd99ba5 in QTimerInfoList::timerWait (this=0x7f7f4c002ed0, tm=...) at kernel/qtimerinfo_unix.cpp:379
#7  0x00007f7f9fd9b03e in timerSourcePrepareHelper (timeout=0x7f7f64d6bc14, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:127
#8  timerSourcePrepare (source=<optimized out>, timeout=0x7f7f64d6bc14) at kernel/qeventdispatcher_glib.cpp:160
#9  0x00007f7f9bb8f3fd in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f7f9bb8fde8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f7f9bb8ffcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007f7f9fd9bc6c in QEventDispatcherGlib::processEvents (this=0x7f7f4c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#13 0x00007f7f9fd403e2 in QEventLoop::exec (this=this@entry=0x7f7f64d6bde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#14 0x00007f7f9faffb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#15 0x00007f7fa188df65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#16 0x00007f7f9fb04b0e in QThreadPrivate::start (arg=0x1393790) at thread/qthread_unix.cpp:337
#17 0x00007f7f9ed0a6aa in start_thread (arg=0x7f7f64d6c700) at pthread_create.c:333
#18 0x00007f7f9f48eeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 13 (Thread 0x7f7f537ff700 (LWP 2344)):
#0  0x00007f7f9bb8f803 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f7f9bb8fe60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7f9bb8ffcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7f9fd9bc6c in QEventDispatcherGlib::processEvents (this=0x7f7f480008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f7f9fd403e2 in QEventLoop::exec (this=this@entry=0x7f7f537fede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f7f9faffb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f7fa188df65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f7f9fb04b0e in QThreadPrivate::start (arg=0x148f2c0) at thread/qthread_unix.cpp:337
#8  0x00007f7f9ed0a6aa in start_thread (arg=0x7f7f537ff700) at pthread_create.c:333
#9  0x00007f7f9f48eeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 12 (Thread 0x7f7f527fe700 (LWP 2345)):
#0  0x00007f7f9bbd47a4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f7f9bb8fd6d in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7f9bb8ffcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7f9fd9bc6c in QEventDispatcherGlib::processEvents (this=0x7f7f400008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f7f9fd403e2 in QEventLoop::exec (this=this@entry=0x7f7f527fdde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f7f9faffb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f7fa188df65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f7f9fb04b0e in QThreadPrivate::start (arg=0x15ae1a0) at thread/qthread_unix.cpp:337
#8  0x00007f7f9ed0a6aa in start_thread (arg=0x7f7f527fe700) at pthread_create.c:333
#9  0x00007f7f9f48eeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 11 (Thread 0x7f7f517fd700 (LWP 2346)):
#0  0x00007f7f9bb8fdbd in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f7f9bb8ffcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7f9fd9bc6c in QEventDispatcherGlib::processEvents (this=0x7f7f440008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#3  0x00007f7f9fd403e2 in QEventLoop::exec (this=this@entry=0x7f7f517fcde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#4  0x00007f7f9faffb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#5  0x00007f7fa188df65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#6  0x00007f7f9fb04b0e in QThreadPrivate::start (arg=0x167f790) at thread/qthread_unix.cpp:337
#7  0x00007f7f9ed0a6aa in start_thread (arg=0x7f7f517fd700) at pthread_create.c:333
#8  0x00007f7f9f48eeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7f7f3ffff700 (LWP 2347)):
#0  0x00007f7f9bb8f5b0 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f7f9bb8fde8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7f9bb8ffcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7f9fd9bc6c in QEventDispatcherGlib::processEvents (this=0x7f7f380008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f7f9fd403e2 in QEventLoop::exec (this=this@entry=0x7f7f3fffede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f7f9faffb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f7fa188df65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f7f9fb04b0e in QThreadPrivate::start (arg=0x17980c0) at thread/qthread_unix.cpp:337
#8  0x00007f7f9ed0a6aa in start_thread (arg=0x7f7f3ffff700) at pthread_create.c:333
#9  0x00007f7f9f48eeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7f7f3effe700 (LWP 2348)):
#0  0x00007f7f9bb8ef27 in g_main_context_release () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f7f9bb8fe76 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7f9bb8ffcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7f9fd9bc6c in QEventDispatcherGlib::processEvents (this=0x7f7f300008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f7f9fd403e2 in QEventLoop::exec (this=this@entry=0x7f7f3effdde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f7f9faffb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f7fa188df65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f7f9fb04b0e in QThreadPrivate::start (arg=0x1887ab0) at thread/qthread_unix.cpp:337
#8  0x00007f7f9ed0a6aa in start_thread (arg=0x7f7f3effe700) at pthread_create.c:333
#9  0x00007f7f9f48eeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7f7f3ddf5700 (LWP 2349)):
#0  0x00007f7f9bbd47a4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f7f9bb8f3f0 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7f9bb8fde8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7f9bb8ffcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7f9fd9bc6c in QEventDispatcherGlib::processEvents (this=0x7f7f340008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f7f9fd403e2 in QEventLoop::exec (this=this@entry=0x7f7f3ddf4de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f7f9faffb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f7fa188df65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f7f9fb04b0e in QThreadPrivate::start (arg=0x195b9e0) at thread/qthread_unix.cpp:337
#9  0x00007f7f9ed0a6aa in start_thread (arg=0x7f7f3ddf5700) at pthread_create.c:333
#10 0x00007f7f9f48eeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7f7f3cdf4700 (LWP 2350)):
#0  0x00007f7f9f4838dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f7f9bb8febc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7f9bb8ffcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7f9fd9bc6c in QEventDispatcherGlib::processEvents (this=0x7f7f280008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f7f9fd403e2 in QEventLoop::exec (this=this@entry=0x7f7f3cdf3de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f7f9faffb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f7fa188df65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f7f9fb04b0e in QThreadPrivate::start (arg=0x1a4d7f0) at thread/qthread_unix.cpp:337
#8  0x00007f7f9ed0a6aa in start_thread (arg=0x7f7f3cdf4700) at pthread_create.c:333
#9  0x00007f7f9f48eeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f7f2f7ff700 (LWP 2351)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f7fa380e644 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#2  0x00007f7fa380e689 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#3  0x00007f7f9ed0a6aa in start_thread (arg=0x7f7f2f7ff700) at pthread_create.c:333
#4  0x00007f7f9f48eeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f7f2effe700 (LWP 2352)):
#0  0x00007f7f9bbd47a4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f7f9bb8ffd6 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7f9fd9bc6c in QEventDispatcherGlib::processEvents (this=0x7f7ea40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#3  0x00007f7f9fd403e2 in QEventLoop::exec (this=this@entry=0x7f7f2effdde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#4  0x00007f7f9faffb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#5  0x00007f7fa188df65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#6  0x00007f7f9fb04b0e in QThreadPrivate::start (arg=0x1b480a0) at thread/qthread_unix.cpp:337
#7  0x00007f7f9ed0a6aa in start_thread (arg=0x7f7f2effe700) at pthread_create.c:333
#8  0x00007f7f9f48eeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f7f2d7e2700 (LWP 2353)):
#0  0x00007f7f9bbd4789 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f7f9bb8fa16 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7f9bb8ff20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7f9bb8ffcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7f9fd9bc6c in QEventDispatcherGlib::processEvents (this=0x7f7e9c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f7f9fd403e2 in QEventLoop::exec (this=this@entry=0x7f7f2d7e1de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f7f9faffb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f7fa188df65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f7f9fb04b0e in QThreadPrivate::start (arg=0x1d8e860) at thread/qthread_unix.cpp:337
#9  0x00007f7f9ed0a6aa in start_thread (arg=0x7f7f2d7e2700) at pthread_create.c:333
#10 0x00007f7f9f48eeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f7ea3df9700 (LWP 2354)):
#0  0x00007f7f9bb8f6e3 in g_main_context_query () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f7f9bb8fe37 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7f9bb8ffcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7f9fd9bc6c in QEventDispatcherGlib::processEvents (this=0x7f7e980008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f7f9fd403e2 in QEventLoop::exec (this=this@entry=0x7f7ea3df8d90, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f7f9faffb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f7fa4377b56 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f7f9fb04b0e in QThreadPrivate::start (arg=0x1eb9730) at thread/qthread_unix.cpp:337
#8  0x00007f7f9ed0a6aa in start_thread (arg=0x7f7ea3df9700) at pthread_create.c:333
#9  0x00007f7f9f48eeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f7ea325e700 (LWP 2357)):
[KCrash Handler]
#6  __strstr_sse2_unaligned () at ../sysdeps/x86_64/multiarch/strstr-sse2-unaligned.S:40
#7  0x00007f7fa43cb56a in QSGRenderContext::initialize(QOpenGLContext*) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#8  0x00007f7fa43ea459 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#9  0x00007f7f9fb04b0e in QThreadPrivate::start (arg=0x8abc80) at thread/qthread_unix.cpp:337
#10 0x00007f7f9ed0a6aa in start_thread (arg=0x7f7ea325e700) at pthread_create.c:333
#11 0x00007f7f9f48eeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f7fa46cb7c0 (LWP 2329)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f7f9fb05c6b in wait (time=18446744073709551615, this=0x1ee25d0) at thread/qwaitcondition_unix.cpp:128
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x8abcc0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:200
#3  0x00007f7fa43ebc48 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007f7fa43eea8b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f7fa43ef30a in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f7fa00987b5 in QWindow::event (this=0x1b4c9a0, ev=<optimized out>) at kernel/qwindow.cpp:2051
#7  0x00007f7fa4420dd3 in QQuickWindow::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#8  0x000000000043be12 in DesktopView::event (this=0x1b4c9a0, e=0x7fff1fb29a00) at ../../shell/desktopview.cpp:200
#9  0x00007f7fa064cb2c in QApplicationPrivate::notify_helper (this=0x788050, receiver=0x1b4c9a0, e=0x7fff1fb29a00) at kernel/qapplication.cpp:3720
#10 0x00007f7fa0652000 in QApplication::notify (this=0x7fff1fb29e60, receiver=0x1b4c9a0, e=0x7fff1fb29a00) at kernel/qapplication.cpp:3503
#11 0x00007f7f9fd42c2b in QCoreApplication::notifyInternal (this=0x7fff1fb29e60, receiver=receiver@entry=0x1b4c9a0, event=event@entry=0x7fff1fb29a00) at kernel/qcoreapplication.cpp:935
#12 0x00007f7fa0090e86 in sendSpontaneousEvent (event=0x7fff1fb29a00, receiver=0x1b4c9a0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#13 QGuiApplicationPrivate::processExposeEvent (e=0x1c35d00) at kernel/qguiapplication.cpp:2613
#14 0x00007f7fa0091bbd in QGuiApplicationPrivate::processWindowSystemEvent (e=e@entry=0x1c35d00) at kernel/qguiapplication.cpp:1638
#15 0x00007f7fa007634f in QWindowSystemInterface::sendWindowSystemEvents (flags=...) at kernel/qwindowsysteminterface.cpp:572
#16 0x00007f7f910bc590 in userEventSourceDispatch (source=<optimized out>) at eventdispatchers/qeventdispatcher_glib.cpp:70
#17 0x00007f7f9bb8fc3d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#18 0x00007f7f9bb8ff20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007f7f9bb8ffcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007f7f9fd9bc57 in QEventDispatcherGlib::processEvents (this=0x7db560, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#21 0x00007f7f9fd403e2 in QEventLoop::exec (this=this@entry=0x7fff1fb29ce0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#22 0x00007f7f9fd4802c in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1188
#23 0x00007f7fa008731c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1510
#24 0x00007f7fa06487a5 in QApplication::exec () at kernel/qapplication.cpp:2956
#25 0x000000000042fd9b in main (argc=4, argv=<optimized out>) at ../../shell/main.cpp:158

Possible duplicates by query: bug 348812.

Reported using DrKonqi
Comment 1 David Edmundson 2015-08-14 00:46:23 UTC 

*** This bug has been marked as a duplicate of bug 348812 ***