Bug 351901

Summary: Plasma crashed when i started KTorrent would not restart
Product: [Plasma] plasmashell Reporter: Brad <BradRDoyle>
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 Brad 2015-08-28 15:25:54 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:
Starting KTorrent
- Unusual behavior I noticed:
Often will not wake from sleep and also recurring black screen on login.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f2c681217c0 (LWP 1710))]

Thread 40 (Thread 0x7f2c54dc7700 (LWP 1713)):
#0  0x00007f2c62e5b8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f2c653e9b72 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f2c653eb64f in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f2c5799b099 in QXcbEventReader::run (this=0x1d76690) at qxcbconnection.cpp:1105
#4  0x00007f2c634e3b0e in QThreadPrivate::start (arg=0x1d76690) at thread/qthread_unix.cpp:337
#5  0x00007f2c626df6aa in start_thread (arg=0x7f2c54dc7700) at pthread_create.c:333
#6  0x00007f2c62e66eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 39 (Thread 0x7f2c4e247700 (LWP 1725)):
#0  0x00007f2c5f54e7a4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f2c5f509a2a in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f2c5f509f20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f2c5f509fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f2c6377ac6c in QEventDispatcherGlib::processEvents (this=0x7f2c400008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f2c6371f3e2 in QEventLoop::exec (this=this@entry=0x7f2c4e246de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f2c634deb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f2c65281f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f2c634e3b0e in QThreadPrivate::start (arg=0x1e3f370) at thread/qthread_unix.cpp:337
#9  0x00007f2c626df6aa in start_thread (arg=0x7f2c4e247700) at pthread_create.c:333
#10 0x00007f2c62e66eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 38 (Thread 0x7f2c3c57f700 (LWP 1754)):
#0  0x00007f2c5f54e7a4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f2c5f5098b9 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f2c5f509e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f2c5f509fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f2c6377ac6c in QEventDispatcherGlib::processEvents (this=0x7f2c340008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f2c6371f3e2 in QEventLoop::exec (this=this@entry=0x7f2c3c57ede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f2c634deb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f2c65281f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f2c634e3b0e in QThreadPrivate::start (arg=0x214ebd0) at thread/qthread_unix.cpp:337
#9  0x00007f2c626df6aa in start_thread (arg=0x7f2c3c57f700) at pthread_create.c:333
#10 0x00007f2c62e66eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 37 (Thread 0x7f2c3a64f700 (LWP 1777)):
#0  0x00007f2c5f54e7a4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f2c5f5093f0 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f2c5f509de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f2c5f509fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f2c6377ac6c in QEventDispatcherGlib::processEvents (this=0x7f2c2c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f2c6371f3e2 in QEventLoop::exec (this=this@entry=0x7f2c3a64ede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f2c634deb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f2c65281f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f2c634e3b0e in QThreadPrivate::start (arg=0x213d220) at thread/qthread_unix.cpp:337
#9  0x00007f2c626df6aa in start_thread (arg=0x7f2c3a64f700) at pthread_create.c:333
#10 0x00007f2c62e66eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 36 (Thread 0x7f2c3956e700 (LWP 1778)):
#0  0x00007f2c5f54e7a4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f2c5f5098b9 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f2c5f509e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f2c5f509fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f2c6377ac6c in QEventDispatcherGlib::processEvents (this=0x7f2c300008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f2c6371f3e2 in QEventLoop::exec (this=this@entry=0x7f2c3956dde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f2c634deb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f2c65281f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f2c634e3b0e in QThreadPrivate::start (arg=0x21c3880) at thread/qthread_unix.cpp:337
#9  0x00007f2c626df6aa in start_thread (arg=0x7f2c3956e700) at pthread_create.c:333
#10 0x00007f2c62e66eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 35 (Thread 0x7f2c2bfff700 (LWP 1779)):
#0  0x00007f2c5f54e789 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f2c5f5098cc in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f2c5f509e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f2c5f509fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f2c6377ac6c in QEventDispatcherGlib::processEvents (this=0x7f2c240008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f2c6371f3e2 in QEventLoop::exec (this=this@entry=0x7f2c2bffede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f2c634deb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f2c65281f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f2c634e3b0e in QThreadPrivate::start (arg=0x24858d0) at thread/qthread_unix.cpp:337
#9  0x00007f2c626df6aa in start_thread (arg=0x7f2c2bfff700) at pthread_create.c:333
#10 0x00007f2c62e66eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 34 (Thread 0x7f2c2affe700 (LWP 1780)):
#0  0x00007f2c5f54e7a4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f2c5f509eb1 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f2c5f509fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f2c6377ac6c in QEventDispatcherGlib::processEvents (this=0x7f2c1c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f2c6371f3e2 in QEventLoop::exec (this=this@entry=0x7f2c2affdde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f2c634deb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f2c65281f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f2c634e3b0e in QThreadPrivate::start (arg=0x26cb090) at thread/qthread_unix.cpp:337
#8  0x00007f2c626df6aa in start_thread (arg=0x7f2c2affe700) at pthread_create.c:333
#9  0x00007f2c62e66eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 33 (Thread 0x7f2c29ffd700 (LWP 1781)):
#0  0x00007f2c62e5b8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f2c5f509ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f2c5f509fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f2c6377ac6c in QEventDispatcherGlib::processEvents (this=0x27bbc60, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f2c6371f3e2 in QEventLoop::exec (this=this@entry=0x7f2c29ffcde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f2c634deb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f2c65281f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f2c634e3b0e in QThreadPrivate::start (arg=0x27adbf0) at thread/qthread_unix.cpp:337
#8  0x00007f2c626df6aa in start_thread (arg=0x7f2c29ffd700) at pthread_create.c:333
#9  0x00007f2c62e66eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 32 (Thread 0x7f2c28ffc700 (LWP 1782)):
#0  0x00007f2c5f54e7a4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f2c5f5093f0 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f2c5f509de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f2c5f509fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f2c6377ac6c in QEventDispatcherGlib::processEvents (this=0x7f2c1c002f20, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f2c6371f3e2 in QEventLoop::exec (this=this@entry=0x7f2c28ffbde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f2c634deb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f2c65281f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f2c634e3b0e in QThreadPrivate::start (arg=0x2899440) at thread/qthread_unix.cpp:337
#9  0x00007f2c626df6aa in start_thread (arg=0x7f2c28ffc700) at pthread_create.c:333
#10 0x00007f2c62e66eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 31 (Thread 0x7f2c237ff700 (LWP 1783)):
#0  0x00007ffe145ead18 in clock_gettime ()
#1  0x00007f2c62e7538d in __GI___clock_gettime (clock_id=<optimized out>, tp=<optimized out>) at ../sysdeps/unix/clock_gettime.c:115
#2  0x00007f2c63599cb6 in qt_clock_gettime (ts=0x7f2c237feb40, 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  0x00007f2c63778639 in QTimerInfoList::updateCurrentTime (this=this@entry=0x7f2c24003ed0) at kernel/qtimerinfo_unix.cpp:84
#6  0x00007f2c63778ba5 in QTimerInfoList::timerWait (this=0x7f2c24003ed0, tm=...) at kernel/qtimerinfo_unix.cpp:379
#7  0x00007f2c6377a03e in timerSourcePrepareHelper (timeout=0x7f2c237fec14, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:127
#8  timerSourcePrepare (source=<optimized out>, timeout=0x7f2c237fec14) at kernel/qeventdispatcher_glib.cpp:160
#9  0x00007f2c5f5093fd in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f2c5f509de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f2c5f509fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007f2c6377ac6c in QEventDispatcherGlib::processEvents (this=0x7f2c24003320, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#13 0x00007f2c6371f3e2 in QEventLoop::exec (this=this@entry=0x7f2c237fede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#14 0x00007f2c634deb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#15 0x00007f2c65281f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#16 0x00007f2c634e3b0e in QThreadPrivate::start (arg=0x2993f10) at thread/qthread_unix.cpp:337
#17 0x00007f2c626df6aa in start_thread (arg=0x7f2c237ff700) at pthread_create.c:333
#18 0x00007f2c62e66eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 30 (Thread 0x7f2c227fe700 (LWP 1784)):
#0  0x00007f2c634db9ca in testAndSetRelaxed<QMutexData*> (currentValue=<synthetic pointer>, newValue=0x1, expectedValue=0x0, _q_value=@0x2aa7cf8: 0x1) at ../../include/QtCore/../../src/corelib/arch/qatomic_x86.h:259
#1  testAndSetAcquire<QMutexData*, QMutexData*> (currentValue=<synthetic pointer>, newValue=0x1, expectedValue=0x0, _q_value=@0x2aa7cf8: 0x1) at ../../include/QtCore/../../src/corelib/thread/qgenericatomic.h:166
#2  testAndSetAcquire (currentValue=<synthetic pointer>, newValue=0x1, expectedValue=0x0, this=0x2aa7cf8, this@entry=0x29) at ../../include/QtCore/../../src/corelib/thread/qbasicatomic.h:270
#3  fastTryLock (current=<synthetic pointer>, this=0x2aa7cf8, this@entry=0x29) at thread/qmutex.h:82
#4  QMutex::lock (this=this@entry=0x2aa7cf8) at thread/qmutex.cpp:212
#5  0x00007f2c6377a5a9 in QMutexLocker (m=0x2aa7cf8, this=<synthetic pointer>) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:128
#6  canWaitLocked (this=0x2aa7cd0) at ../../include/QtCore/5.4.1/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:243
#7  postEventSourcePrepare (timeout=<synthetic pointer>, s=0x7f2c30003a00) at kernel/qeventdispatcher_glib.cpp:254
#8  postEventSourceCheck (source=0x7f2c30003a00) at kernel/qeventdispatcher_glib.cpp:264
#9  0x00007f2c5f5098c1 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f2c5f509e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f2c5f509fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007f2c6377ac6c in QEventDispatcherGlib::processEvents (this=0x7f2c30002f20, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#13 0x00007f2c6371f3e2 in QEventLoop::exec (this=this@entry=0x7f2c227fdde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#14 0x00007f2c634deb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#15 0x00007f2c65281f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#16 0x00007f2c634e3b0e in QThreadPrivate::start (arg=0x2a97220) at thread/qthread_unix.cpp:337
#17 0x00007f2c626df6aa in start_thread (arg=0x7f2c227fe700) at pthread_create.c:333
#18 0x00007f2c62e66eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 29 (Thread 0x7f2c215ef700 (LWP 1785)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f2c67235644 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#2  0x00007f2c67235689 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#3  0x00007f2c626df6aa in start_thread (arg=0x7f2c215ef700) at pthread_create.c:333
#4  0x00007f2c62e66eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 28 (Thread 0x7f2c20cee700 (LWP 1786)):
#0  0x00007f2c634dbe0f in testAndSetRelaxed<QMutexData*> (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=0x1, _q_value=@0x2b87578: 0x0) at ../../include/QtCore/../../src/corelib/arch/qatomic_x86.h:259
#1  testAndSetRelease<QMutexData*, QMutexData*> (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=0x1, _q_value=@0x2b87578: 0x0) at ../../include/QtCore/../../src/corelib/thread/qgenericatomic.h:175
#2  testAndSetRelease (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=0x1, this=this@entry=0x2b87578) at ../../include/QtCore/../../src/corelib/thread/qbasicatomic.h:272
#3  fastTryUnlock (current=<synthetic pointer>, this=this@entry=0x2b87578) at thread/qmutex.h:85
#4  QMutex::unlock (this=this@entry=0x2b87578) at thread/qmutex.cpp:264
#5  0x00007f2c6377a1ed 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=0x2b87550) at ../../include/QtCore/5.4.1/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:244
#8  postEventSourcePrepare (s=0x7f2c2c003ae0, timeout=0x7f2c20cedc14) at kernel/qeventdispatcher_glib.cpp:254
#9  0x00007f2c5f5093fd in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f2c5f509de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f2c5f509fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007f2c6377ac6c in QEventDispatcherGlib::processEvents (this=0x7f2c2c003120, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#13 0x00007f2c6371f3e2 in QEventLoop::exec (this=this@entry=0x7f2c20cedde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#14 0x00007f2c634deb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#15 0x00007f2c65281f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#16 0x00007f2c634e3b0e in QThreadPrivate::start (arg=0x2b8bc80) at thread/qthread_unix.cpp:337
#17 0x00007f2c626df6aa in start_thread (arg=0x7f2c20cee700) at pthread_create.c:333
#18 0x00007f2c62e66eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 27 (Thread 0x7f2b9aa8f700 (LWP 1789)):
#0  0x00007f2c62e5b8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f2c5f509ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f2c5f509fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f2c6377ac6c in QEventDispatcherGlib::processEvents (this=0x7f2c340013e0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f2c6371f3e2 in QEventLoop::exec (this=this@entry=0x7f2b9aa8ede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f2c634deb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f2c65281f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f2c634e3b0e in QThreadPrivate::start (arg=0x2efcc50) at thread/qthread_unix.cpp:337
#8  0x00007f2c626df6aa in start_thread (arg=0x7f2b9aa8f700) at pthread_create.c:333
#9  0x00007f2c62e66eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 26 (Thread 0x7f2b99107700 (LWP 1790)):
#0  0x00007f2c62e5b8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f2c5f509ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f2c5f509fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f2c6377ac6c in QEventDispatcherGlib::processEvents (this=0x7f2c40078ec0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f2c6371f3e2 in QEventLoop::exec (this=this@entry=0x7f2b99106d90, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f2c634deb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f2c67db8b56 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f2c634e3b0e in QThreadPrivate::start (arg=0x2cb7cd0) at thread/qthread_unix.cpp:337
#8  0x00007f2c626df6aa in start_thread (arg=0x7f2b99107700) at pthread_create.c:333
#9  0x00007f2c62e66eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 25 (Thread 0x7f2b982aa700 (LWP 1791)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f2c634e4c6b in wait (time=18446744073709551615, this=0x237a0c0) at thread/qwaitcondition_unix.cpp:128
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x2ce0c30, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:200
#3  0x00007f2c67e2afab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007f2c67e2b3a0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f2c634e3b0e in QThreadPrivate::start (arg=0x2ce0bb0) at thread/qthread_unix.cpp:337
#6  0x00007f2c626df6aa in start_thread (arg=0x7f2b982aa700) at pthread_create.c:333
#7  0x00007f2c62e66eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 24 (Thread 0x7f2b9699d700 (LWP 1792)):
#0  0x00007f2c62e5b8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f2c5f509ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f2c5f509fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f2c6377ac6c in QEventDispatcherGlib::processEvents (this=0x7f2c50005bc0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f2c6371f3e2 in QEventLoop::exec (this=this@entry=0x7f2b9699cde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f2c634deb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f2c65281f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f2c634e3b0e in QThreadPrivate::start (arg=0x35102a0) at thread/qthread_unix.cpp:337
#8  0x00007f2c626df6aa in start_thread (arg=0x7f2b9699d700) at pthread_create.c:333
#9  0x00007f2c62e66eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 23 (Thread 0x7f2b93887700 (LWP 1805)):
#0  0x00007f2c62e5b8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f2c5f509ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f2c5f509fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f2c6377ac6c in QEventDispatcherGlib::processEvents (this=0x34e3670, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f2c6371f3e2 in QEventLoop::exec (this=this@entry=0x7f2b93886de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f2c634deb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f2c65281f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f2c634e3b0e in QThreadPrivate::start (arg=0x34a8380) at thread/qthread_unix.cpp:337
#8  0x00007f2c626df6aa in start_thread (arg=0x7f2b93887700) at pthread_create.c:333
#9  0x00007f2c62e66eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 22 (Thread 0x7f2b92886700 (LWP 1806)):
#0  0x00007f2c62e5b8b7 in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f2c5f509ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f2c5f509fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f2c6377ac6c in QEventDispatcherGlib::processEvents (this=0x7f2c1c00ace0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f2c6371f3e2 in QEventLoop::exec (this=this@entry=0x7f2b92885de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f2c634deb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f2c65281f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f2c634e3b0e in QThreadPrivate::start (arg=0x3aec0e0) at thread/qthread_unix.cpp:337
#8  0x00007f2c626df6aa in start_thread (arg=0x7f2b92886700) at pthread_create.c:333
#9  0x00007f2c62e66eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 21 (Thread 0x7f2b917d5700 (LWP 1807)):
#0  0x00007f2c634dbe0f in testAndSetRelaxed<QMutexData*> (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=0x1, _q_value=@0x3bddb38: 0x0) at ../../include/QtCore/../../src/corelib/arch/qatomic_x86.h:259
#1  testAndSetRelease<QMutexData*, QMutexData*> (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=0x1, _q_value=@0x3bddb38: 0x0) at ../../include/QtCore/../../src/corelib/thread/qgenericatomic.h:175
#2  testAndSetRelease (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=0x1, this=this@entry=0x3bddb38) at ../../include/QtCore/../../src/corelib/thread/qbasicatomic.h:272
#3  fastTryUnlock (current=<synthetic pointer>, this=this@entry=0x3bddb38) at thread/qmutex.h:85
#4  QMutex::unlock (this=this@entry=0x3bddb38) at thread/qmutex.cpp:264
#5  0x00007f2c6377a1ed 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=0x3bddb10) at ../../include/QtCore/5.4.1/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:244
#8  postEventSourcePrepare (s=0x7f2c241e7550, timeout=0x7f2b917d4c14) at kernel/qeventdispatcher_glib.cpp:254
#9  0x00007f2c5f5093fd in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f2c5f509de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f2c5f509fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007f2c6377ac6c in QEventDispatcherGlib::processEvents (this=0x7f2c24130e60, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#13 0x00007f2c6371f3e2 in QEventLoop::exec (this=this@entry=0x7f2b917d4de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#14 0x00007f2c634deb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#15 0x00007f2c65281f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#16 0x00007f2c634e3b0e in QThreadPrivate::start (arg=0x3bdbf90) at thread/qthread_unix.cpp:337
#17 0x00007f2c626df6aa in start_thread (arg=0x7f2b917d5700) at pthread_create.c:333
#18 0x00007f2c62e66eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 20 (Thread 0x7f2b906d4700 (LWP 1808)):
#0  0x00007f2c5f54e789 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f2c5f509409 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f2c5f509de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f2c5f509fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f2c6377ac6c in QEventDispatcherGlib::processEvents (this=0x7f2c300bc350, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f2c6371f3e2 in QEventLoop::exec (this=this@entry=0x7f2b906d3de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f2c634deb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f2c65281f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f2c634e3b0e in QThreadPrivate::start (arg=0x3ccb5b0) at thread/qthread_unix.cpp:337
#9  0x00007f2c626df6aa in start_thread (arg=0x7f2b906d4700) at pthread_create.c:333
#10 0x00007f2c62e66eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 19 (Thread 0x7f2b8f5d3700 (LWP 1809)):
#0  0x00007ffe145ead16 in clock_gettime ()
#1  0x00007f2c62e7538d in __GI___clock_gettime (clock_id=<optimized out>, tp=<optimized out>) at ../sysdeps/unix/clock_gettime.c:115
#2  0x00007f2c63599cb6 in qt_clock_gettime (ts=0x7f2b8f5d2b40, 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  0x00007f2c63778639 in QTimerInfoList::updateCurrentTime (this=this@entry=0x7f2c2c13fb40) at kernel/qtimerinfo_unix.cpp:84
#6  0x00007f2c63778ba5 in QTimerInfoList::timerWait (this=0x7f2c2c13fb40, tm=...) at kernel/qtimerinfo_unix.cpp:379
#7  0x00007f2c6377a03e in timerSourcePrepareHelper (timeout=0x7f2b8f5d2c14, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:127
#8  timerSourcePrepare (source=<optimized out>, timeout=0x7f2b8f5d2c14) at kernel/qeventdispatcher_glib.cpp:160
#9  0x00007f2c5f5093fd in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f2c5f509de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f2c5f509fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007f2c6377ac6c in QEventDispatcherGlib::processEvents (this=0x7f2c2c0ea550, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#13 0x00007f2c6371f3e2 in QEventLoop::exec (this=this@entry=0x7f2b8f5d2de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#14 0x00007f2c634deb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#15 0x00007f2c65281f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#16 0x00007f2c634e3b0e in QThreadPrivate::start (arg=0x3dd1700) at thread/qthread_unix.cpp:337
#17 0x00007f2c626df6aa in start_thread (arg=0x7f2b8f5d3700) at pthread_create.c:333
#18 0x00007f2c62e66eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 18 (Thread 0x7f2b8e4d2700 (LWP 1811)):
#0  __libc_enable_asynccancel () at ../sysdeps/unix/sysv/linux/x86_64/cancellation.S:57
#1  0x00007f2c62e5b8d2 in poll () at ../sysdeps/unix/syscall-template.S:81
#2  0x00007f2c5f509ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f2c5f509fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f2c6377ac6c in QEventDispatcherGlib::processEvents (this=0x7f2c34012a10, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f2c6371f3e2 in QEventLoop::exec (this=this@entry=0x7f2b8e4d1de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f2c634deb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f2c65281f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f2c634e3b0e in QThreadPrivate::start (arg=0x3eb36c0) at thread/qthread_unix.cpp:337
#9  0x00007f2c626df6aa in start_thread (arg=0x7f2b8e4d2700) at pthread_create.c:333
#10 0x00007f2c62e66eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 17 (Thread 0x7f2b8d3d1700 (LWP 1812)):
#0  0x00007f2c5f54e7a4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f2c5f509eb1 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f2c5f509fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f2c6377ac6c in QEventDispatcherGlib::processEvents (this=0x7f2c400e2570, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f2c6371f3e2 in QEventLoop::exec (this=this@entry=0x7f2b8d3d0de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f2c634deb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f2c65281f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f2c634e3b0e in QThreadPrivate::start (arg=0x3f9fd40) at thread/qthread_unix.cpp:337
#8  0x00007f2c626df6aa in start_thread (arg=0x7f2b8d3d1700) at pthread_create.c:333
#9  0x00007f2c62e66eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 16 (Thread 0x7f2b8c2d0700 (LWP 1813)):
#0  0x00007f2c5f54e7a4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f2c5f509eb1 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f2c5f509fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f2c6377ac6c in QEventDispatcherGlib::processEvents (this=0x7f2c481d8ee0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f2c6371f3e2 in QEventLoop::exec (this=this@entry=0x7f2b8c2cfde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f2c634deb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f2c65281f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f2c634e3b0e in QThreadPrivate::start (arg=0x4091fa0) at thread/qthread_unix.cpp:337
#8  0x00007f2c626df6aa in start_thread (arg=0x7f2b8c2d0700) at pthread_create.c:333
#9  0x00007f2c62e66eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 15 (Thread 0x7f2b8b1cf700 (LWP 1814)):
#0  0x00007f2c62e5749d in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f2c5f54d2f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f2c5f50996c in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f2c5f509e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f2c5f509fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f2c6377ac6c in QEventDispatcherGlib::processEvents (this=0x7f2c500667b0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#6  0x00007f2c6371f3e2 in QEventLoop::exec (this=this@entry=0x7f2b8b1cede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#7  0x00007f2c634deb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#8  0x00007f2c65281f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007f2c634e3b0e in QThreadPrivate::start (arg=0x4193fe0) at thread/qthread_unix.cpp:337
#10 0x00007f2c626df6aa in start_thread (arg=0x7f2b8b1cf700) at pthread_create.c:333
#11 0x00007f2c62e66eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 14 (Thread 0x7f2b8a0ce700 (LWP 1815)):
#0  0x00007f2c634db9ca in testAndSetRelaxed<QMutexData*> (currentValue=<synthetic pointer>, newValue=0x1, expectedValue=0x0, _q_value=@0x426e738: 0x1) at ../../include/QtCore/../../src/corelib/arch/qatomic_x86.h:259
#1  testAndSetAcquire<QMutexData*, QMutexData*> (currentValue=<synthetic pointer>, newValue=0x1, expectedValue=0x0, _q_value=@0x426e738: 0x1) at ../../include/QtCore/../../src/corelib/thread/qgenericatomic.h:166
#2  testAndSetAcquire (currentValue=<synthetic pointer>, newValue=0x1, expectedValue=0x0, this=0x426e738, this@entry=0x1) at ../../include/QtCore/../../src/corelib/thread/qbasicatomic.h:270
#3  fastTryLock (current=<synthetic pointer>, this=0x426e738, this@entry=0x1) at thread/qmutex.h:82
#4  QMutex::lock (this=this@entry=0x426e738) at thread/qmutex.cpp:212
#5  0x00007f2c6377a1db in QMutexLocker (m=0x426e738, this=<synthetic pointer>) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:128
#6  canWaitLocked (this=0x426e710) at ../../include/QtCore/5.4.1/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:243
#7  postEventSourcePrepare (s=0x426f4c0, timeout=0x7f2b8a0cdc14) at kernel/qeventdispatcher_glib.cpp:254
#8  0x00007f2c5f5093fd in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007f2c5f509de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f2c5f509fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f2c6377ac6c in QEventDispatcherGlib::processEvents (this=0x427b800, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#12 0x00007f2c6371f3e2 in QEventLoop::exec (this=this@entry=0x7f2b8a0cdde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#13 0x00007f2c634deb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#14 0x00007f2c65281f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#15 0x00007f2c634e3b0e in QThreadPrivate::start (arg=0x426e560) at thread/qthread_unix.cpp:337
#16 0x00007f2c626df6aa in start_thread (arg=0x7f2b8a0ce700) at pthread_create.c:333
#17 0x00007f2c62e66eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 13 (Thread 0x7f2b88fcd700 (LWP 1816)):
#0  0x00007f2c5f54e780 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f2c5f509e7e in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f2c5f509fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f2c6377ac6c in QEventDispatcherGlib::processEvents (this=0x7f2c1c08b7d0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f2c6371f3e2 in QEventLoop::exec (this=this@entry=0x7f2b88fccde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f2c634deb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f2c65281f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f2c634e3b0e in QThreadPrivate::start (arg=0x43741f0) at thread/qthread_unix.cpp:337
#8  0x00007f2c626df6aa in start_thread (arg=0x7f2b88fcd700) at pthread_create.c:333
#9  0x00007f2c62e66eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 12 (Thread 0x7f2b87ecc700 (LWP 1817)):
#0  0x00007f2c5f54e789 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f2c5f5098cc in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f2c5f509e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f2c5f509fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f2c6377ac6c in QEventDispatcherGlib::processEvents (this=0x7f2c24121320, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f2c6371f3e2 in QEventLoop::exec (this=this@entry=0x7f2b87ecbde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f2c634deb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f2c65281f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f2c634e3b0e in QThreadPrivate::start (arg=0x4452a50) at thread/qthread_unix.cpp:337
#9  0x00007f2c626df6aa in start_thread (arg=0x7f2b87ecc700) at pthread_create.c:333
#10 0x00007f2c62e66eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 11 (Thread 0x7f2b86dcb700 (LWP 1819)):
#0  0x00007f2c5f54e7a4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f2c5f5098b9 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f2c5f509e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f2c5f509fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f2c6377ac6c in QEventDispatcherGlib::processEvents (this=0x7f2c300e5470, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f2c6371f3e2 in QEventLoop::exec (this=this@entry=0x7f2b86dcade0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f2c634deb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f2c65281f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f2c634e3b0e in QThreadPrivate::start (arg=0x453a9d0) at thread/qthread_unix.cpp:337
#9  0x00007f2c626df6aa in start_thread (arg=0x7f2b86dcb700) at pthread_create.c:333
#10 0x00007f2c62e66eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7f2b85cca700 (LWP 1820)):
#0  0x00007f2c62e5749d in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f2c5f54d2f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f2c5f50996c in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f2c5f509e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f2c5f509fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f2c6377ac6c in QEventDispatcherGlib::processEvents (this=0x7f2c2c100ca0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#6  0x00007f2c6371f3e2 in QEventLoop::exec (this=this@entry=0x7f2b85cc9de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#7  0x00007f2c634deb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#8  0x00007f2c65281f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007f2c634e3b0e in QThreadPrivate::start (arg=0x46323a0) at thread/qthread_unix.cpp:337
#10 0x00007f2c626df6aa in start_thread (arg=0x7f2b85cca700) at pthread_create.c:333
#11 0x00007f2c62e66eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7f2b801e7700 (LWP 1858)):
#0  0x00007f2c5f54e249 in g_private_get () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f2c5f530e00 in g_thread_self () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f2c5f508ddc in g_main_context_acquire () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f2c5f509d75 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f2c5f509fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f2c6377ac6c in QEventDispatcherGlib::processEvents (this=0x7f2c340cc000, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#6  0x00007f2c6371f3e2 in QEventLoop::exec (this=this@entry=0x7f2b801e6dc0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#7  0x00007f2c634deb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#8  0x00007f2b82487cf7 in KCupsConnection::run() () from /usr/lib/x86_64-linux-gnu/libkcupslib.so
#9  0x00007f2c634e3b0e in QThreadPrivate::start (arg=0x4947fb0) at thread/qthread_unix.cpp:337
#10 0x00007f2c626df6aa in start_thread (arg=0x7f2b801e7700) at pthread_create.c:333
#11 0x00007f2c62e66eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7f2b7f32c700 (LWP 1859)):
#0  0x00007f2c62e5d0b7 in ioctl () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f2c4505796b in uki_firegl_LockHardware () from /usr/lib/libatiuki.so.1
#2  0x00007f2c470f3ea5 in ?? () from /usr/lib/dri/fglrx_dri.so
#3  0x00007f2c471386ca in ?? () from /usr/lib/dri/fglrx_dri.so
#4  0x00007f2c4714d62c in ?? () from /usr/lib/dri/fglrx_dri.so
#5  0x00007f2c4672ae98 in ?? () from /usr/lib/dri/fglrx_dri.so
#6  0x00007f2c4671e372 in ?? () from /usr/lib/dri/fglrx_dri.so
#7  0x00007f2c4671ed85 in ?? () from /usr/lib/dri/fglrx_dri.so
#8  0x00007f2c4671f10f in ?? () from /usr/lib/dri/fglrx_dri.so
#9  0x00007f2c466adb8a in ?? () from /usr/lib/dri/fglrx_dri.so
#10 0x00007f2c466cca24 in ?? () from /usr/lib/dri/fglrx_dri.so
#11 0x00007f2c466cd2cb in ?? () from /usr/lib/dri/fglrx_dri.so
#12 0x00007f2c467250b5 in ?? () from /usr/lib/dri/fglrx_dri.so
#13 0x00007f2c466eacd2 in ?? () from /usr/lib/dri/fglrx_dri.so
#14 0x00007f2c466eb59d in ?? () from /usr/lib/dri/fglrx_dri.so
#15 0x00007f2c45e6340a in ?? () from /usr/lib/dri/fglrx_dri.so
#16 0x00007f2c45e6c73d in ?? () from /usr/lib/dri/fglrx_dri.so
#17 0x00007f2c45e73d56 in ?? () from /usr/lib/dri/fglrx_dri.so
#18 0x00007f2c45e75978 in ?? () from /usr/lib/dri/fglrx_dri.so
#19 0x00007f2c45e52345 in ?? () from /usr/lib/dri/fglrx_dri.so
#20 0x00007f2c463342d5 in ?? () from /usr/lib/dri/fglrx_dri.so
#21 0x00007f2c46352364 in ?? () from /usr/lib/dri/fglrx_dri.so
#22 0x00007f2c4631c537 in ?? () from /usr/lib/dri/fglrx_dri.so
#23 0x00007f2c4567caa1 in ?? () from /usr/lib/dri/fglrx_dri.so
#24 0x00007f2c4634d78c in ?? () from /usr/lib/dri/fglrx_dri.so
#25 0x00007f2c470fb839 in ?? () from /usr/lib/dri/fglrx_dri.so
#26 0x00007f2c5ec6346b in glXSwapBuffers () from /usr/lib/fglrx/libGL.so.1
#27 0x00007f2c579c2312 in QGLXContext::swapBuffers (this=0x39fd170, surface=0x3618cd0) at qglxintegration.cpp:529
#28 0x00007f2c63ab1496 in QOpenGLContext::swapBuffers (this=0x39bba00, surface=<optimized out>) at kernel/qopenglcontext.cpp:990
#29 0x00007f2c67e299ac in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#30 0x00007f2c67e2b360 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#31 0x00007f2c634e3b0e in QThreadPrivate::start (arg=0x4f884b0) at thread/qthread_unix.cpp:337
#32 0x00007f2c626df6aa in start_thread (arg=0x7f2b7f32c700) at pthread_create.c:333
#33 0x00007f2c62e66eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7f2b7d90f700 (LWP 1860)):
#0  __libc_enable_asynccancel () at ../sysdeps/unix/sysv/linux/x86_64/cancellation.S:65
#1  0x00007f2c62e5b8d2 in poll () at ../sysdeps/unix/syscall-template.S:81
#2  0x00007f2c5f509ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f2c5f509fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f2c6377ac6c in QEventDispatcherGlib::processEvents (this=0x7f2c481d75e0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f2c6371f3e2 in QEventLoop::exec (this=this@entry=0x7f2b7d90ede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f2c634deb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f2c65281f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f2c634e3b0e in QThreadPrivate::start (arg=0x47bb8e0) at thread/qthread_unix.cpp:337
#9  0x00007f2c626df6aa in start_thread (arg=0x7f2b7d90f700) at pthread_create.c:333
#10 0x00007f2c62e66eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f2b7c90e700 (LWP 1861)):
#0  0x00007f2c5f54e789 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f2c5f5098cc in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f2c5f509e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f2c5f509fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f2c6377ac6c in QEventDispatcherGlib::processEvents (this=0x7f2c5006bad0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f2c6371f3e2 in QEventLoop::exec (this=this@entry=0x7f2b7c90dde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f2c634deb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f2c65281f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f2c634e3b0e in QThreadPrivate::start (arg=0x54e0200) at thread/qthread_unix.cpp:337
#9  0x00007f2c626df6aa in start_thread (arg=0x7f2b7c90e700) at pthread_create.c:333
#10 0x00007f2c62e66eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f2b793fa700 (LWP 2129)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f2c634e4c6b in wait (time=18446744073709551615, this=0x2af3b10) at thread/qwaitcondition_unix.cpp:128
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x579c250, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:200
#3  0x00007f2c67e2afab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007f2c67e2b3a0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f2c634e3b0e in QThreadPrivate::start (arg=0x579c1d0) at thread/qthread_unix.cpp:337
#6  0x00007f2c626df6aa in start_thread (arg=0x7f2b793fa700) at pthread_create.c:333
#7  0x00007f2c62e66eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f2b77a42700 (LWP 2156)):
#0  __libc_enable_asynccancel () at ../sysdeps/unix/sysv/linux/x86_64/cancellation.S:57
#1  0x00007f2c62e5b8d2 in poll () at ../sysdeps/unix/syscall-template.S:81
#2  0x00007f2c5f509ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f2c5f509fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f2c6377ac6c in QEventDispatcherGlib::processEvents (this=0x7f2c1c040540, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f2c6371f3e2 in QEventLoop::exec (this=this@entry=0x7f2b77a41de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f2c634deb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f2c65281f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f2c634e3b0e in QThreadPrivate::start (arg=0x5e58540) at thread/qthread_unix.cpp:337
#9  0x00007f2c626df6aa in start_thread (arg=0x7f2b77a42700) at pthread_create.c:333
#10 0x00007f2c62e66eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f2b76941700 (LWP 2157)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f2c634e4c6b in wait (time=18446744073709551615, this=0x5fd3650) at thread/qwaitcondition_unix.cpp:128
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x5fd21a0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:200
#3  0x00007f2c67e2afab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007f2c67e2b3a0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f2c634e3b0e in QThreadPrivate::start (arg=0x5fd2120) at thread/qthread_unix.cpp:337
#6  0x00007f2c626df6aa in start_thread (arg=0x7f2b76941700) at pthread_create.c:333
#7  0x00007f2c62e66eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f2b74baf700 (LWP 2158)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f2c634e4c6b in wait (time=18446744073709551615, this=0x66c36d0) at thread/qwaitcondition_unix.cpp:128
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x1f82f30, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:200
#3  0x00007f2c67e2afab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007f2c67e2b3a0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f2c634e3b0e in QThreadPrivate::start (arg=0x1f82eb0) at thread/qthread_unix.cpp:337
#6  0x00007f2c626df6aa in start_thread (arg=0x7f2b74baf700) at pthread_create.c:333
#7  0x00007f2c62e66eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f2c681217c0 (LWP 1710)):
[KCrash Handler]
#6  QDataStream::operator>> (this=0x0, i=@0x7ffe145d4194: 32556) at io/qdatastream.cpp:646
#7  0x00007f2c64d67a25 in KServiceGroupFactory::KServiceGroupFactory() () from /usr/lib/x86_64-linux-gnu/libKF5Service.so.5
#8  0x00007f2c64d67ba2 in KServiceGroupFactory::self() () from /usr/lib/x86_64-linux-gnu/libKF5Service.so.5
#9  0x00007f2c64d630c0 in KServiceGroup::root() () from /usr/lib/x86_64-linux-gnu/libKF5Service.so.5
#10 0x00007f2b9b5f4855 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/plasma/dataengine/plasma_engine_apps.so
#11 0x00007f2c637529c9 in QMetaObject::activate (sender=0x1dfbd40, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=0x7ffe145d4350) at kernel/qobject.cpp:3716
#12 0x00007f2c64d90ba5 in KSycoca::databaseChanged(QStringList const&) () from /usr/lib/x86_64-linux-gnu/libKF5Service.so.5
#13 0x00007f2c64d7f31c in KSycoca::notifyDatabaseChanged(QStringList const&) () from /usr/lib/x86_64-linux-gnu/libKF5Service.so.5
#14 0x00007f2c64d912c3 in KSycoca::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/x86_64-linux-gnu/libKF5Service.so.5
#15 0x00007f2c682405c7 in QDBusConnectionPrivate::deliverCall (this=0x0, object=0x7ffe145d4194, msg=..., metaTypes=..., slotIdx=116229968) at qdbusintegrator.cpp:993
#16 0x00007f2c6375373a in QObject::event (this=0x1dfbd40, e=<optimized out>) at kernel/qobject.cpp:1245
#17 0x00007f2c64033b2c in QApplicationPrivate::notify_helper (this=0x1d5e890, receiver=0x1dfbd40, e=0x6f35330) at kernel/qapplication.cpp:3720
#18 0x00007f2c64039000 in QApplication::notify (this=0x7ffe145d4c30, receiver=0x1dfbd40, e=0x6f35330) at kernel/qapplication.cpp:3503
#19 0x00007f2c63721c2b in QCoreApplication::notifyInternal (this=0x7ffe145d4c30, receiver=0x1dfbd40, event=event@entry=0x6f35330) at kernel/qcoreapplication.cpp:935
#20 0x00007f2c63723c9b in sendEvent (event=0x6f35330, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:228
#21 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x1d54280) at kernel/qcoreapplication.cpp:1552
#22 0x00007f2c63724298 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1410
#23 0x00007f2c6377a843 in postEventSourceDispatch (s=0x1d93e90) at kernel/qeventdispatcher_glib.cpp:271
#24 0x00007f2c5f509c3d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007f2c5f509f20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#26 0x00007f2c5f509fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#27 0x00007f2c6377ac57 in QEventDispatcherGlib::processEvents (this=0x1d9a940, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#28 0x00007f2c6371f3e2 in QEventLoop::exec (this=this@entry=0x7ffe145d4ab0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#29 0x00007f2c6372702c in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1188
#30 0x000000000042fd9b in main ()

Possible duplicates by query: bug 351204, bug 350877, bug 350368, bug 349930, bug 349277.

Reported using DrKonqi
Comment 1 David Edmundson 2015-09-04 06:10:54 UTC 

*** This bug has been marked as a duplicate of bug 342438 ***