Bug 348576

Summary: Plasma shell crashed when monitor powered off overnight
Product: [Plasma] plasmashell Reporter: drdrnewman
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 drdrnewman 2015-06-02 10:16:47 UTC 
Application: plasmashell (5.2.2)

Qt Version: 5.4.1
Operating System: Linux 3.19.0-18-generic x86_64
Distribution: Ubuntu 15.04

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

Sleeping

- Unusual behavior I noticed:

On getting up, I woke up the monitor, waggled the mouse, and logged in to the screen saver. Plasma then crashed with this report.

-- Backtrace:
Application: Plasma (plasmashell), signal: Aborted
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f78ebded7c0 (LWP 6604))]

Thread 45 (Thread 0x7f78cedee700 (LWP 6621)):
#0  end (this=<optimized out>) at ../../include/QtCore/../../src/corelib/tools/qlist.h:96
#1  constEnd (this=<optimized out>) at ../../include/QtCore/../../src/corelib/tools/qlist.h:282
#2  QTimerInfoList::timerWait (this=0x7f78c0002cd0, tm=...) at kernel/qtimerinfo_unix.cpp:384
#3  0x00007f78e74c903e in timerSourcePrepareHelper (timeout=0x7f78cededc14, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:127
#4  timerSourcePrepare (source=<optimized out>, timeout=0x7f78cededc14) at kernel/qeventdispatcher_glib.cpp:160
#5  0x00007f78e32bd3fd in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f78e32bdde8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f78e32bdfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007f78e74c9c6c in QEventDispatcherGlib::processEvents (this=0x7f78c00008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#9  0x00007f78e746e3e2 in QEventLoop::exec (this=this@entry=0x7f78cededde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#10 0x00007f78e722db44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#11 0x00007f78e8fbbf65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#12 0x00007f78e7232b0e in QThreadPrivate::start (arg=0x17170a0) at thread/qthread_unix.cpp:337
#13 0x00007f78e64386aa in start_thread (arg=0x7f78cedee700) at pthread_create.c:333
#14 0x00007f78e6bbceed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 44 (Thread 0x7f78bffff700 (LWP 6626)):
#0  0x00007f78e3302789 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f78e32bdfb8 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f78e74c9c6c in QEventDispatcherGlib::processEvents (this=0x7f78b80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#3  0x00007f78e746e3e2 in QEventLoop::exec (this=this@entry=0x7f78bfffede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#4  0x00007f78e722db44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#5  0x00007f78e8fbbf65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#6  0x00007f78e7232b0e in QThreadPrivate::start (arg=0x19d4450) at thread/qthread_unix.cpp:337
#7  0x00007f78e64386aa in start_thread (arg=0x7f78bffff700) at pthread_create.c:333
#8  0x00007f78e6bbceed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 43 (Thread 0x7f78be566700 (LWP 6739)):
#0  0x00007f78e32e4df0 in g_thread_self () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f78e32bdfbd in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f78e74c9c6c in QEventDispatcherGlib::processEvents (this=0x7f78b00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#3  0x00007f78e746e3e2 in QEventLoop::exec (this=this@entry=0x7f78be565de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#4  0x00007f78e722db44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#5  0x00007f78e8fbbf65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#6  0x00007f78e7232b0e in QThreadPrivate::start (arg=0x19ad580) at thread/qthread_unix.cpp:337
#7  0x00007f78e64386aa in start_thread (arg=0x7f78be566700) at pthread_create.c:333
#8  0x00007f78e6bbceed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 42 (Thread 0x7f78bd495700 (LWP 6743)):
#0  0x00007ffed93f5c45 in clock_gettime ()
#1  0x00007f78e6bcb38d in __GI___clock_gettime (clock_id=<optimized out>, tp=<optimized out>) at ../sysdeps/unix/clock_gettime.c:115
#2  0x00007f78e72e8cb6 in qt_clock_gettime (ts=0x7f78bd494b40, 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  0x00007f78e74c7639 in QTimerInfoList::updateCurrentTime (this=this@entry=0x7f78b4002cd0) at kernel/qtimerinfo_unix.cpp:84
#6  0x00007f78e74c7ba5 in QTimerInfoList::timerWait (this=0x7f78b4002cd0, tm=...) at kernel/qtimerinfo_unix.cpp:379
#7  0x00007f78e74c903e in timerSourcePrepareHelper (timeout=0x7f78bd494c14, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:127
#8  timerSourcePrepare (source=<optimized out>, timeout=0x7f78bd494c14) at kernel/qeventdispatcher_glib.cpp:160
#9  0x00007f78e32bd3fd in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f78e32bdde8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f78e32bdfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007f78e74c9c6c in QEventDispatcherGlib::processEvents (this=0x7f78b40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#13 0x00007f78e746e3e2 in QEventLoop::exec (this=this@entry=0x7f78bd494de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#14 0x00007f78e722db44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#15 0x00007f78e8fbbf65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#16 0x00007f78e7232b0e in QThreadPrivate::start (arg=0x1c46420) at thread/qthread_unix.cpp:337
#17 0x00007f78e64386aa in start_thread (arg=0x7f78bd495700) at pthread_create.c:333
#18 0x00007f78e6bbceed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 41 (Thread 0x7f78affff700 (LWP 6744)):
#0  0x00007f78e6bad49d in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f78df889f45 in ?? () from /usr/lib/nvidia-340-updates/tls/libnvidia-tls.so.340.76
#2  0x00007f78e33012f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f78e32bd96c in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f78e32bde60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f78e32bdfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f78e74c9c6c in QEventDispatcherGlib::processEvents (this=0x7f78a80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#7  0x00007f78e746e3e2 in QEventLoop::exec (this=this@entry=0x7f78afffede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#8  0x00007f78e722db44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#9  0x00007f78e8fbbf65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#10 0x00007f78e7232b0e in QThreadPrivate::start (arg=0x1f306a0) at thread/qthread_unix.cpp:337
#11 0x00007f78e64386aa in start_thread (arg=0x7f78affff700) at pthread_create.c:333
#12 0x00007f78e6bbceed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 40 (Thread 0x7f78aeffe700 (LWP 6747)):
#0  timerSourcePrepare (source=0x7f78a0002c70, timeout=0x7f78aeffdc14) at kernel/qeventdispatcher_glib.cpp:148
#1  0x00007f78e32bd3fd in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f78e32bdde8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f78e32bdfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f78e74c9c6c in QEventDispatcherGlib::processEvents (this=0x7f78a00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f78e746e3e2 in QEventLoop::exec (this=this@entry=0x7f78aeffdde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f78e722db44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f78e8fbbf65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f78e7232b0e in QThreadPrivate::start (arg=0x2046e40) at thread/qthread_unix.cpp:337
#9  0x00007f78e64386aa in start_thread (arg=0x7f78aeffe700) at pthread_create.c:333
#10 0x00007f78e6bbceed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 39 (Thread 0x7f78adffd700 (LWP 6748)):
#0  0x00007f78e33027a4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f78e32bdd6d in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f78e32bdfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f78e74c9c6c in QEventDispatcherGlib::processEvents (this=0x7f78a40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f78e746e3e2 in QEventLoop::exec (this=this@entry=0x7f78adffcde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f78e722db44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f78e8fbbf65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f78e7232b0e in QThreadPrivate::start (arg=0x21003c0) at thread/qthread_unix.cpp:337
#8  0x00007f78e64386aa in start_thread (arg=0x7f78adffd700) at pthread_create.c:333
#9  0x00007f78e6bbceed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 38 (Thread 0x7f78acffc700 (LWP 6749)):
#0  0x00007f78e722ae0f in testAndSetRelaxed<QMutexData*> (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=0x1, _q_value=@0x2218218: 0x0) at ../../include/QtCore/../../src/corelib/arch/qatomic_x86.h:259
#1  testAndSetRelease<QMutexData*, QMutexData*> (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=0x1, _q_value=@0x2218218: 0x0) at ../../include/QtCore/../../src/corelib/thread/qgenericatomic.h:175
#2  testAndSetRelease (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=0x1, this=this@entry=0x2218218) at ../../include/QtCore/../../src/corelib/thread/qbasicatomic.h:272
#3  fastTryUnlock (current=<synthetic pointer>, this=this@entry=0x2218218) at thread/qmutex.h:85
#4  QMutex::unlock (this=this@entry=0x2218218) at thread/qmutex.cpp:264
#5  0x00007f78e74c91ed 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=0x22181f0) at ../../include/QtCore/5.4.1/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:244
#8  postEventSourcePrepare (s=0x7f78980012d0, timeout=0x7f78acffbc14) at kernel/qeventdispatcher_glib.cpp:254
#9  0x00007f78e32bd3fd in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f78e32bdde8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f78e32bdfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007f78e74c9c6c in QEventDispatcherGlib::processEvents (this=0x7f78980008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#13 0x00007f78e746e3e2 in QEventLoop::exec (this=this@entry=0x7f78acffbde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#14 0x00007f78e722db44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#15 0x00007f78e8fbbf65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#16 0x00007f78e7232b0e in QThreadPrivate::start (arg=0x21f3120) at thread/qthread_unix.cpp:337
#17 0x00007f78e64386aa in start_thread (arg=0x7f78acffc700) at pthread_create.c:333
#18 0x00007f78e6bbceed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 37 (Thread 0x7f789f7ff700 (LWP 6750)):
#0  __libc_enable_asynccancel () at ../sysdeps/unix/sysv/linux/x86_64/cancellation.S:65
#1  0x00007f78e6bad492 in read () at ../sysdeps/unix/syscall-template.S:81
#2  0x00007f78df889f45 in ?? () from /usr/lib/nvidia-340-updates/tls/libnvidia-tls.so.340.76
#3  0x00007f78e33012f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f78e32bd96c in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f78e32bde60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f78e32bdfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f78e74c9c6c in QEventDispatcherGlib::processEvents (this=0x7f78940008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#8  0x00007f78e746e3e2 in QEventLoop::exec (this=this@entry=0x7f789f7fede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#9  0x00007f78e722db44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#10 0x00007f78e8fbbf65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#11 0x00007f78e7232b0e in QThreadPrivate::start (arg=0x2311620) at thread/qthread_unix.cpp:337
#12 0x00007f78e64386aa in start_thread (arg=0x7f789f7ff700) at pthread_create.c:333
#13 0x00007f78e6bbceed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 36 (Thread 0x7f789e5f6700 (LWP 6753)):
#0  0x00007f78e32baed7 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f78e32bd7ef in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f78e32bde60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f78e32bdfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f78e74c9c6c in QEventDispatcherGlib::processEvents (this=0x7f788c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f78e746e3e2 in QEventLoop::exec (this=this@entry=0x7f789e5f5de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f78e722db44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f78e8fbbf65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f78e7232b0e in QThreadPrivate::start (arg=0x23f7070) at thread/qthread_unix.cpp:337
#9  0x00007f78e64386aa in start_thread (arg=0x7f789e5f6700) at pthread_create.c:333
#10 0x00007f78e6bbceed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 35 (Thread 0x7f789d535700 (LWP 6756)):
#0  0x00007f78e3302789 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f78e32bddbd in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f78e32bdfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f78e74c9c6c in QEventDispatcherGlib::processEvents (this=0x7f78900008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f78e746e3e2 in QEventLoop::exec (this=this@entry=0x7f789d534de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f78e722db44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f78e8fbbf65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f78e7232b0e in QThreadPrivate::start (arg=0x2520800) at thread/qthread_unix.cpp:337
#8  0x00007f78e64386aa in start_thread (arg=0x7f789d535700) at pthread_create.c:333
#9  0x00007f78e6bbceed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 34 (Thread 0x7f788bfff700 (LWP 6758)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f78eaf3c644 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#2  0x00007f78eaf3c689 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#3  0x00007f78e64386aa in start_thread (arg=0x7f788bfff700) at pthread_create.c:333
#4  0x00007f78e6bbceed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 33 (Thread 0x7f780b7fe700 (LWP 6759)):
#0  canWaitLocked (this=0x25dca80) at ../../include/QtCore/5.4.1/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:244
#1  postEventSourcePrepare (s=0x7f78040012d0, timeout=0x7f780b7fdc14) at kernel/qeventdispatcher_glib.cpp:254
#2  0x00007f78e32bd3fd in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f78e32bdde8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f78e32bdfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f78e74c9c6c in QEventDispatcherGlib::processEvents (this=0x7f78040008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#6  0x00007f78e746e3e2 in QEventLoop::exec (this=this@entry=0x7f780b7fdde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#7  0x00007f78e722db44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#8  0x00007f78e8fbbf65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007f78e7232b0e in QThreadPrivate::start (arg=0x25f0160) at thread/qthread_unix.cpp:337
#10 0x00007f78e64386aa in start_thread (arg=0x7f780b7fe700) at pthread_create.c:333
#11 0x00007f78e6bbceed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 32 (Thread 0x7f780a0c9700 (LWP 6766)):
#0  0x00007f78e33027a4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f78e32bd6f9 in g_main_context_query () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f78e32bde37 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f78e32bdfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f78e74c9c6c in QEventDispatcherGlib::processEvents (this=0x7f77fc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f78e746e3e2 in QEventLoop::exec (this=this@entry=0x7f780a0c8de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f78e722db44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f78e8fbbf65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f78e7232b0e in QThreadPrivate::start (arg=0x2792080) at thread/qthread_unix.cpp:337
#9  0x00007f78e64386aa in start_thread (arg=0x7f780a0c9700) at pthread_create.c:333
#10 0x00007f78e6bbceed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 31 (Thread 0x7f7803fff700 (LWP 6767)):
#0  0x00007f78e33027b0 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f78e32bd3f0 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f78e32bdde8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f78e32bdfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f78e74c9c6c in QEventDispatcherGlib::processEvents (this=0x7f77f80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f78e746e3e2 in QEventLoop::exec (this=this@entry=0x7f7803ffed90, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f78e722db44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f78ebaa5b56 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#8  0x00007f78e7232b0e in QThreadPrivate::start (arg=0x290fba0) at thread/qthread_unix.cpp:337
#9  0x00007f78e64386aa in start_thread (arg=0x7f7803fff700) at pthread_create.c:333
#10 0x00007f78e6bbceed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 30 (Thread 0x7f78037fe700 (LWP 6799)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f78e7233c6b in wait (time=18446744073709551615, this=0x291eff0) at thread/qwaitcondition_unix.cpp:128
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x170bb50, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:200
#3  0x00007f78ebb17fab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007f78ebb183a0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f78e7232b0e in QThreadPrivate::start (arg=0x170bad0) at thread/qthread_unix.cpp:337
#6  0x00007f78e64386aa in start_thread (arg=0x7f78037fe700) at pthread_create.c:333
#7  0x00007f78e6bbceed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 29 (Thread 0x7f7800cfc700 (LWP 6813)):
#0  0x00007f78e3302789 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f78e32bd409 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f78e32bdde8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f78e32bdfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f78e74c9c6c in QEventDispatcherGlib::processEvents (this=0x7f77f40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f78e746e3e2 in QEventLoop::exec (this=this@entry=0x7f7800cfbde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f78e722db44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f78e8fbbf65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f78e7232b0e in QThreadPrivate::start (arg=0x1649510) at thread/qthread_unix.cpp:337
#9  0x00007f78e64386aa in start_thread (arg=0x7f7800cfc700) at pthread_create.c:333
#10 0x00007f78e6bbceed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 28 (Thread 0x7f77eda04700 (LWP 6905)):
#0  0x00007f78e32bd49d in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f78e32bdde8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f78e32bdfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f78e74c9c6c in QEventDispatcherGlib::processEvents (this=0x7f77e80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f78e746e3e2 in QEventLoop::exec (this=this@entry=0x7f77eda03de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f78e722db44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f78e8fbbf65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f78e7232b0e in QThreadPrivate::start (arg=0x2fe4e40) at thread/qthread_unix.cpp:337
#8  0x00007f78e64386aa in start_thread (arg=0x7f77eda04700) at pthread_create.c:333
#9  0x00007f78e6bbceed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 27 (Thread 0x7f77ec901700 (LWP 6906)):
#0  0x00007f78e6bb18dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f78e32bdebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f78e32bdfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f78e74c9c6c in QEventDispatcherGlib::processEvents (this=0x7f77e00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f78e746e3e2 in QEventLoop::exec (this=this@entry=0x7f77ec900de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f78e722db44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f78e8fbbf65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f78e7232b0e in QThreadPrivate::start (arg=0x30accf0) at thread/qthread_unix.cpp:337
#8  0x00007f78e64386aa in start_thread (arg=0x7f77ec901700) at pthread_create.c:333
#9  0x00007f78e6bbceed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 26 (Thread 0x7f77e77ef700 (LWP 6907)):
#0  update_get_addr (ti=0x7f78e76cc680) at dl-tls.c:806
#1  0x00007f78e7231a12 in get_thread_data () at thread/qthread_unix.cpp:181
#2  QThreadData::current (createIfNecessary=createIfNecessary@entry=true) at thread/qthread_unix.cpp:212
#3  0x00007f78e74c9591 in postEventSourcePrepare (timeout=0x0, s=0x7f77dc0012d0) at kernel/qeventdispatcher_glib.cpp:247
#4  postEventSourceCheck (source=0x7f77dc0012d0) at kernel/qeventdispatcher_glib.cpp:264
#5  0x00007f78e32bd8c1 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f78e32bde60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f78e32bdfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007f78e74c9c6c in QEventDispatcherGlib::processEvents (this=0x7f77dc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#9  0x00007f78e746e3e2 in QEventLoop::exec (this=this@entry=0x7f77e77eede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#10 0x00007f78e722db44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#11 0x00007f78e8fbbf65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#12 0x00007f78e7232b0e in QThreadPrivate::start (arg=0x2fe8180) at thread/qthread_unix.cpp:337
#13 0x00007f78e64386aa in start_thread (arg=0x7f77e77ef700) at pthread_create.c:333
#14 0x00007f78e6bbceed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 25 (Thread 0x7f77e66ee700 (LWP 6909)):
#0  0x00007f78e33027a4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f78e32bdfd6 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f78e74c9c6c in QEventDispatcherGlib::processEvents (this=0x7f77d40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#3  0x00007f78e746e3e2 in QEventLoop::exec (this=this@entry=0x7f77e66edde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#4  0x00007f78e722db44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#5  0x00007f78e8fbbf65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#6  0x00007f78e7232b0e in QThreadPrivate::start (arg=0x3291a30) at thread/qthread_unix.cpp:337
#7  0x00007f78e64386aa in start_thread (arg=0x7f77e66ee700) at pthread_create.c:333
#8  0x00007f78e6bbceed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 24 (Thread 0x7f77e55ed700 (LWP 6911)):
#0  0x00007f78e32bdd9c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f78e32bdfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f78e74c9c6c in QEventDispatcherGlib::processEvents (this=0x7f77d80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#3  0x00007f78e746e3e2 in QEventLoop::exec (this=this@entry=0x7f77e55ecde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#4  0x00007f78e722db44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#5  0x00007f78e8fbbf65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#6  0x00007f78e7232b0e in QThreadPrivate::start (arg=0x3387b30) at thread/qthread_unix.cpp:337
#7  0x00007f78e64386aa in start_thread (arg=0x7f77e55ed700) at pthread_create.c:333
#8  0x00007f78e6bbceed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 23 (Thread 0x7f77d3fff700 (LWP 6912)):
#0  0x00007f78e32baf02 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f78e32bd39b in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f78e32bdde8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f78e32bdfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f78e74c9c6c in QEventDispatcherGlib::processEvents (this=0x7f77cc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f78e746e3e2 in QEventLoop::exec (this=this@entry=0x7f77d3ffede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f78e722db44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f78e8fbbf65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f78e7232b0e in QThreadPrivate::start (arg=0x3473020) at thread/qthread_unix.cpp:337
#9  0x00007f78e64386aa in start_thread (arg=0x7f77d3fff700) at pthread_create.c:333
#10 0x00007f78e6bbceed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 22 (Thread 0x7f77d2ffe700 (LWP 6913)):
#0  0x00007f78e6bb18dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f78e32bdebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f78e32bdfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f78e74c9c6c in QEventDispatcherGlib::processEvents (this=0x7f77c40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f78e746e3e2 in QEventLoop::exec (this=this@entry=0x7f77d2ffdde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f78e722db44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f78e8fbbf65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f78e7232b0e in QThreadPrivate::start (arg=0x358fa80) at thread/qthread_unix.cpp:337
#8  0x00007f78e64386aa in start_thread (arg=0x7f77d2ffe700) at pthread_create.c:333
#9  0x00007f78e6bbceed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 21 (Thread 0x7f77d1ffd700 (LWP 6914)):
#0  0x00007f78e6bb18dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f78e32bdebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f78e32bdfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f78e74c9c6c in QEventDispatcherGlib::processEvents (this=0x7f77c80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f78e746e3e2 in QEventLoop::exec (this=this@entry=0x7f77d1ffcde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f78e722db44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f78e8fbbf65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f78e7232b0e in QThreadPrivate::start (arg=0x364e330) at thread/qthread_unix.cpp:337
#8  0x00007f78e64386aa in start_thread (arg=0x7f77d1ffd700) at pthread_create.c:333
#9  0x00007f78e6bbceed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 20 (Thread 0x7f77d0ffc700 (LWP 6915)):
#0  0x00007f78e722a9ca in testAndSetRelaxed<QMutexData*> (currentValue=<synthetic pointer>, newValue=0x1, expectedValue=0x0, _q_value=@0x37371b8: 0x1) at ../../include/QtCore/../../src/corelib/arch/qatomic_x86.h:259
#1  testAndSetAcquire<QMutexData*, QMutexData*> (currentValue=<synthetic pointer>, newValue=0x1, expectedValue=0x0, _q_value=@0x37371b8: 0x1) at ../../include/QtCore/../../src/corelib/thread/qgenericatomic.h:166
#2  testAndSetAcquire (currentValue=<synthetic pointer>, newValue=0x1, expectedValue=0x0, this=0x37371b8, this@entry=0x1) at ../../include/QtCore/../../src/corelib/thread/qbasicatomic.h:270
#3  fastTryLock (current=<synthetic pointer>, this=0x37371b8, this@entry=0x1) at thread/qmutex.h:82
#4  QMutex::lock (this=this@entry=0x37371b8) at thread/qmutex.cpp:212
#5  0x00007f78e74c91db in QMutexLocker (m=0x37371b8, this=<synthetic pointer>) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:128
#6  canWaitLocked (this=0x3737190) at ../../include/QtCore/5.4.1/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:243
#7  postEventSourcePrepare (s=0x7f77bc0012d0, timeout=0x7f77d0ffbc14) at kernel/qeventdispatcher_glib.cpp:254
#8  0x00007f78e32bd3fd in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007f78e32bdde8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f78e32bdfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f78e74c9c6c in QEventDispatcherGlib::processEvents (this=0x7f77bc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#12 0x00007f78e746e3e2 in QEventLoop::exec (this=this@entry=0x7f77d0ffbde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#13 0x00007f78e722db44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#14 0x00007f78e8fbbf65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#15 0x00007f78e7232b0e in QThreadPrivate::start (arg=0x3768100) at thread/qthread_unix.cpp:337
#16 0x00007f78e64386aa in start_thread (arg=0x7f77d0ffc700) at pthread_create.c:333
#17 0x00007f78e6bbceed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 19 (Thread 0x7f77c37ff700 (LWP 6916)):
#0  0x00007f78e33027a4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f78e32bdfd6 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f78e74c9c6c in QEventDispatcherGlib::processEvents (this=0x7f77b80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#3  0x00007f78e746e3e2 in QEventLoop::exec (this=this@entry=0x7f77c37fede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#4  0x00007f78e722db44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#5  0x00007f78e8fbbf65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#6  0x00007f78e7232b0e in QThreadPrivate::start (arg=0x382ed50) at thread/qthread_unix.cpp:337
#7  0x00007f78e64386aa in start_thread (arg=0x7f77c37ff700) at pthread_create.c:333
#8  0x00007f78e6bbceed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 18 (Thread 0x7f77c27fe700 (LWP 6917)):
#0  0x00007f78e722a9ca in testAndSetRelaxed<QMutexData*> (currentValue=<synthetic pointer>, newValue=0x1, expectedValue=0x0, _q_value=@0x3918848: 0x1) at ../../include/QtCore/../../src/corelib/arch/qatomic_x86.h:259
#1  testAndSetAcquire<QMutexData*, QMutexData*> (currentValue=<synthetic pointer>, newValue=0x1, expectedValue=0x0, _q_value=@0x3918848: 0x1) at ../../include/QtCore/../../src/corelib/thread/qgenericatomic.h:166
#2  testAndSetAcquire (currentValue=<synthetic pointer>, newValue=0x1, expectedValue=0x0, this=0x3918848, this@entry=0x29) at ../../include/QtCore/../../src/corelib/thread/qbasicatomic.h:270
#3  fastTryLock (current=<synthetic pointer>, this=0x3918848, this@entry=0x29) at thread/qmutex.h:82
#4  QMutex::lock (this=this@entry=0x3918848) at thread/qmutex.cpp:212
#5  0x00007f78e74c95a9 in QMutexLocker (m=0x3918848, this=<synthetic pointer>) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:128
#6  canWaitLocked (this=0x3918820) at ../../include/QtCore/5.4.1/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:243
#7  postEventSourcePrepare (timeout=<synthetic pointer>, s=0x7f77b00012d0) at kernel/qeventdispatcher_glib.cpp:254
#8  postEventSourceCheck (source=0x7f77b00012d0) at kernel/qeventdispatcher_glib.cpp:264
#9  0x00007f78e32bd8c1 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f78e32bde60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f78e32bdfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007f78e74c9c6c in QEventDispatcherGlib::processEvents (this=0x7f77b00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#13 0x00007f78e746e3e2 in QEventLoop::exec (this=this@entry=0x7f77c27fdde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#14 0x00007f78e722db44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#15 0x00007f78e8fbbf65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#16 0x00007f78e7232b0e in QThreadPrivate::start (arg=0x391f9a0) at thread/qthread_unix.cpp:337
#17 0x00007f78e64386aa in start_thread (arg=0x7f77c27fe700) at pthread_create.c:333
#18 0x00007f78e6bbceed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 17 (Thread 0x7f77c17fd700 (LWP 6918)):
#0  0x00007f78e6bb18dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f78e32bdebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f78e32bdfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f78e74c9c6c in QEventDispatcherGlib::processEvents (this=0x7f77b40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f78e746e3e2 in QEventLoop::exec (this=this@entry=0x7f77c17fcde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f78e722db44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f78e8fbbf65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f78e7232b0e in QThreadPrivate::start (arg=0x3a0f880) at thread/qthread_unix.cpp:337
#8  0x00007f78e64386aa in start_thread (arg=0x7f77c17fd700) at pthread_create.c:333
#9  0x00007f78e6bbceed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 16 (Thread 0x7f77affff700 (LWP 6919)):
#0  end (this=0x7f77a8002ed0) at ../../include/QtCore/../../src/corelib/tools/qlist.h:96
#1  constEnd (this=0x7f77a8002ed0) at ../../include/QtCore/../../src/corelib/tools/qlist.h:282
#2  QTimerInfoList::timerWait (this=0x7f77a8002ed0, tm=...) at kernel/qtimerinfo_unix.cpp:384
#3  0x00007f78e74c903e in timerSourcePrepareHelper (timeout=0x7f77afffec14, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:127
#4  timerSourcePrepare (source=<optimized out>, timeout=0x7f77afffec14) at kernel/qeventdispatcher_glib.cpp:160
#5  0x00007f78e32bd3fd in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f78e32bdde8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f78e32bdfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007f78e74c9c6c in QEventDispatcherGlib::processEvents (this=0x7f77a80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#9  0x00007f78e746e3e2 in QEventLoop::exec (this=this@entry=0x7f77afffede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#10 0x00007f78e722db44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#11 0x00007f78e8fbbf65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#12 0x00007f78e7232b0e in QThreadPrivate::start (arg=0x3b00ee0) at thread/qthread_unix.cpp:337
#13 0x00007f78e64386aa in start_thread (arg=0x7f77affff700) at pthread_create.c:333
#14 0x00007f78e6bbceed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 15 (Thread 0x7f77aeffe700 (LWP 6920)):
#0  0x00007f78e33027a4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f78e32bd6f9 in g_main_context_query () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f78e32bde37 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f78e32bdfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f78e74c9c6c in QEventDispatcherGlib::processEvents (this=0x3bf3580, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f78e746e3e2 in QEventLoop::exec (this=this@entry=0x7f77aeffdde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f78e722db44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f78e8fbbf65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f78e7232b0e in QThreadPrivate::start (arg=0x3bf39a0) at thread/qthread_unix.cpp:337
#9  0x00007f78e64386aa in start_thread (arg=0x7f77aeffe700) at pthread_create.c:333
#10 0x00007f78e6bbceed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 14 (Thread 0x7f77a5b5a700 (LWP 6938)):
#0  0x00007f78e32bd530 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f78e32bdde8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f78e32bdfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f78e74c9c6c in QEventDispatcherGlib::processEvents (this=0x7f77a8003120, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f78e746e3e2 in QEventLoop::exec (this=this@entry=0x7f77a5b59dc0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f78e722db44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f77a7dc2cf7 in KCupsConnection::run() () from /usr/lib/x86_64-linux-gnu/libkcupslib.so
#7  0x00007f78e7232b0e in QThreadPrivate::start (arg=0x41a3a70) at thread/qthread_unix.cpp:337
#8  0x00007f78e64386aa in start_thread (arg=0x7f77a5b5a700) at pthread_create.c:333
#9  0x00007f78e6bbceed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 13 (Thread 0x7f77a4d47700 (LWP 6955)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f78e7233c6b in wait (time=18446744073709551615, this=0x4473f00) at thread/qwaitcondition_unix.cpp:128
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x446dc50, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:200
#3  0x00007f78ebb17fab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007f78ebb183a0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f78e7232b0e in QThreadPrivate::start (arg=0x446dbd0) at thread/qthread_unix.cpp:337
#6  0x00007f78e64386aa in start_thread (arg=0x7f77a4d47700) at pthread_create.c:333
#7  0x00007f78e6bbceed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 12 (Thread 0x7f77a41ff700 (LWP 6956)):
#0  0x00007f78e32bd4c5 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f78e32bdde8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f78e32bdfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f78e74c9c6c in QEventDispatcherGlib::processEvents (this=0x7f77b0002f20, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f78e746e3e2 in QEventLoop::exec (this=this@entry=0x7f77a41fede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f78e722db44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f78e8fbbf65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f78e7232b0e in QThreadPrivate::start (arg=0x461d290) at thread/qthread_unix.cpp:337
#8  0x00007f78e64386aa in start_thread (arg=0x7f77a41ff700) at pthread_create.c:333
#9  0x00007f78e6bbceed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 11 (Thread 0x7f77a31fe700 (LWP 6957)):
#0  __libc_enable_asynccancel () at ../sysdeps/unix/sysv/linux/x86_64/cancellation.S:65
#1  0x00007f78e6bb18d2 in poll () at ../sysdeps/unix/syscall-template.S:81
#2  0x00007f78e32bdebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f78e32bdfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f78e74c9c6c in QEventDispatcherGlib::processEvents (this=0x7f77b800cca0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f78e746e3e2 in QEventLoop::exec (this=this@entry=0x7f77a31fdde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f78e722db44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f78e8fbbf65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f78e7232b0e in QThreadPrivate::start (arg=0x47070a0) at thread/qthread_unix.cpp:337
#9  0x00007f78e64386aa in start_thread (arg=0x7f77a31fe700) at pthread_create.c:333
#10 0x00007f78e6bbceed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7f779ea59700 (LWP 7003)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f78e7233c6b in wait (time=18446744073709551615, this=0x4bc5810) at thread/qwaitcondition_unix.cpp:128
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x4bcdaf0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:200
#3  0x00007f78ebb17fab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007f78ebb183a0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f78e7232b0e in QThreadPrivate::start (arg=0x4bcda70) at thread/qthread_unix.cpp:337
#6  0x00007f78e64386aa in start_thread (arg=0x7f779ea59700) at pthread_create.c:333
#7  0x00007f78e6bbceed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7f779c117700 (LWP 7125)):
#0  QTimerInfoList::repairTimersIfNeeded (this=0x7f77c4003b90) at kernel/qtimerinfo_unix.cpp:154
#1  0x00007f78e74c7bb3 in QTimerInfoList::timerWait (this=0x7f77c4003b90, tm=...) at kernel/qtimerinfo_unix.cpp:380
#2  0x00007f78e74c903e in timerSourcePrepareHelper (timeout=0x7f779c116c14, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:127
#3  timerSourcePrepare (source=<optimized out>, timeout=0x7f779c116c14) at kernel/qeventdispatcher_glib.cpp:160
#4  0x00007f78e32bd3fd in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f78e32bdde8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f78e32bdfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f78e74c9c6c in QEventDispatcherGlib::processEvents (this=0x7f77c4002fe0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#8  0x00007f78e746e3e2 in QEventLoop::exec (this=this@entry=0x7f779c116de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#9  0x00007f78e722db44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#10 0x00007f78e8fbbf65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#11 0x00007f78e7232b0e in QThreadPrivate::start (arg=0x557d1d0) at thread/qthread_unix.cpp:337
#12 0x00007f78e64386aa in start_thread (arg=0x7f779c117700) at pthread_create.c:333
#13 0x00007f78e6bbceed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7f779b116700 (LWP 7126)):
#0  0x00007f78e32bda01 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f78e32bdf20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f78e32bdfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f78e74c9c6c in QEventDispatcherGlib::processEvents (this=0x7f77cc0086c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f78e746e3e2 in QEventLoop::exec (this=this@entry=0x7f779b115d90, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f78e722db44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f78ebaa5b56 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f78e7232b0e in QThreadPrivate::start (arg=0x52541c0) at thread/qthread_unix.cpp:337
#8  0x00007f78e64386aa in start_thread (arg=0x7f779b116700) at pthread_create.c:333
#9  0x00007f78e6bbceed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7f7798113700 (LWP 7308)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f78e7233c6b in wait (time=18446744073709551615, this=0x293e550) at thread/qwaitcondition_unix.cpp:128
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x56a8610, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:200
#3  0x00007f78ebb17fab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007f78ebb183a0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f78e7232b0e in QThreadPrivate::start (arg=0x56a8590) at thread/qthread_unix.cpp:337
#6  0x00007f78e64386aa in start_thread (arg=0x7f7798113700) at pthread_create.c:333
#7  0x00007f78e6bbceed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f7797912700 (LWP 7465)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f78e7233c6b in wait (time=18446744073709551615, this=0x4c6a2f0) at thread/qwaitcondition_unix.cpp:128
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x5af54a0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:200
#3  0x00007f78ebb17fab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007f78ebb183a0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f78e7232b0e in QThreadPrivate::start (arg=0x5af5420) at thread/qthread_unix.cpp:337
#6  0x00007f78e64386aa in start_thread (arg=0x7f7797912700) at pthread_create.c:333
#7  0x00007f78e6bbceed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f7797111700 (LWP 7642)):
#0  0x00007f78e3302789 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f78e32bd409 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f78e32bdde8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f78e32bdfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f78e74c9c6c in QEventDispatcherGlib::processEvents (this=0x7f77e0008720, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f78e746e3e2 in QEventLoop::exec (this=this@entry=0x7f7797110de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f78e722db44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f78e8fbbf65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f78e7232b0e in QThreadPrivate::start (arg=0x5d3d480) at thread/qthread_unix.cpp:337
#9  0x00007f78e64386aa in start_thread (arg=0x7f7797111700) at pthread_create.c:333
#10 0x00007f78e6bbceed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f7792998700 (LWP 10435)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f78e7233c6b in wait (time=18446744073709551615, this=0x5c4b680) at thread/qwaitcondition_unix.cpp:128
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x57d9b40, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:200
#3  0x00007f78ebb17fab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007f78ebb183a0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f78e7232b0e in QThreadPrivate::start (arg=0x57d9ac0) at thread/qthread_unix.cpp:337
#6  0x00007f78e64386aa in start_thread (arg=0x7f7792998700) at pthread_create.c:333
#7  0x00007f78e6bbceed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f7793aff700 (LWP 11958)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f78e7233c6b in wait (time=18446744073709551615, this=0x75366f0) at thread/qwaitcondition_unix.cpp:128
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x6a56000, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:200
#3  0x00007f78ebb17fab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007f78ebb183a0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f78e7232b0e in QThreadPrivate::start (arg=0x6a55f80) at thread/qthread_unix.cpp:337
#6  0x00007f78e64386aa in start_thread (arg=0x7f7793aff700) at pthread_create.c:333
#7  0x00007f78e6bbceed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f7791d37700 (LWP 12140)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f78e7233c6b in wait (time=18446744073709551615, this=0x6edbb10) at thread/qwaitcondition_unix.cpp:128
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x5d7f640, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:200
#3  0x00007f78ebb17fab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007f78ebb183a0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f78e7232b0e in QThreadPrivate::start (arg=0x5d7f5c0) at thread/qthread_unix.cpp:337
#6  0x00007f78e64386aa in start_thread (arg=0x7f7791d37700) at pthread_create.c:333
#7  0x00007f78e6bbceed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f78ebded7c0 (LWP 6604)):
[KCrash Handler]
#6  0x00007f78e6aeb267 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:55
#7  0x00007f78e6aececa in __GI_abort () at abort.c:89
#8  0x00007f78e6ee106d in __gnu_cxx::__verbose_terminate_handler() () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#9  0x00007f78e6edeee6 in ?? () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#10 0x00007f78e6edef31 in std::terminate() () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#11 0x00007f78e6edfa7f in __cxa_pure_virtual () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#12 0x00007f78e77aa96a in QPlatformScreen::physicalSize (this=<optimized out>) at kernel/qplatformscreen.cpp:131
#13 0x00007f78e77e47b2 in QScreen::physicalSize (this=this@entry=0x1631090) at kernel/qscreen.cpp:245
#14 0x00007f78e77e4869 in QScreen::physicalDotsPerInch (this=0x1631090) at kernel/qscreen.cpp:168
#15 0x00007f78ebc2bc49 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#16 0x00007f78e74a19c9 in QMetaObject::activate (sender=sender@entry=0x190e0b0, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffed93e8770) at kernel/qobject.cpp:3716
#17 0x00007f78e74a2057 in QMetaObject::activate (sender=sender@entry=0x190e0b0, m=m@entry=0x7f78e7c09b80 <QWindow::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffed93e8770) at kernel/qobject.cpp:3582
#18 0x00007f78e77c1d4f in QWindow::screenChanged (this=this@entry=0x190e0b0, _t1=_t1@entry=0x5311350) at .moc/moc_qwindow.cpp:626
#19 0x00007f78e77c25a5 in QWindowPrivate::emitScreenChangedRecursion (this=this@entry=0x19c7920, newScreen=newScreen@entry=0x5311350) at kernel/qwindow.cpp:366
#20 0x00007f78e77c5cc3 in QWindowPrivate::setTopLevelScreen (this=0x19c7920, newScreen=0x5311350, recreate=<optimized out>) at kernel/qwindow.cpp:387
#21 0x00007f78e77c5e65 in QWindow::screenDestroyed (this=0x190e0b0, object=<optimized out>) at kernel/qwindow.cpp:1713
#22 0x00007f78e74a135a in call (a=0x7ffed93e89c0, r=0x190e0b0, this=0x19c7bf0) at ../../include/QtCore/../../src/corelib/kernel/qobject_impl.h:124
#23 QMetaObject::activate (sender=sender@entry=0x1631090, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffed93e89c0) at kernel/qobject.cpp:3702
#24 0x00007f78e74a2057 in QMetaObject::activate (sender=sender@entry=0x1631090, m=m@entry=0x7f78e76c3940 <QObject::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffed93e89c0) at kernel/qobject.cpp:3582
#25 0x00007f78e74a20ff in QObject::destroyed (this=this@entry=0x1631090, _t1=_t1@entry=0x1631090) at .moc/moc_qobject.cpp:206
#26 0x00007f78e74aaa8b in QObject::~QObject (this=0x1631090, __in_chrg=<optimized out>) at kernel/qobject.cpp:903
#27 0x00007f78e77e4679 in QScreen::~QScreen (this=0x1631090, __in_chrg=<optimized out>) at kernel/qscreen.cpp:77
#28 0x00007f78e77aaf2a in QPlatformScreen::~QPlatformScreen (this=0x1630ba0, __in_chrg=<optimized out>) at kernel/qplatformscreen.cpp:57
#29 0x00007f78d88a0769 in QXcbScreen::~QXcbScreen (this=0x1630ba0, __in_chrg=<optimized out>) at qxcbscreen.cpp:222
#30 0x00007f78d88935ab in QXcbConnection::updateScreens (this=this@entry=0x161e4c0) at qxcbconnection.cpp:286
#31 0x00007f78d889427d in QXcbConnection::handleXcbEvent (this=this@entry=0x161e4c0, event=event@entry=0x7f78d0003c00) at qxcbconnection.cpp:961
#32 0x00007f78d88954bb in QXcbConnection::processXcbEvents (this=0x161e4c0) at qxcbconnection.cpp:1303
#33 0x00007f78e74a273a in QObject::event (this=0x161e4c0, e=<optimized out>) at kernel/qobject.cpp:1245
#34 0x00007f78e7d7ab2c in QApplicationPrivate::notify_helper (this=0x1602130, receiver=0x161e4c0, e=0x7f78d0005ba0) at kernel/qapplication.cpp:3720
#35 0x00007f78e7d80000 in QApplication::notify (this=0x7ffed93e9500, receiver=0x161e4c0, e=0x7f78d0005ba0) at kernel/qapplication.cpp:3503
#36 0x00007f78e7470c2b in QCoreApplication::notifyInternal (this=0x7ffed93e9500, receiver=0x161e4c0, event=event@entry=0x7f78d0005ba0) at kernel/qcoreapplication.cpp:935
#37 0x00007f78e7472c9b in sendEvent (event=0x7f78d0005ba0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:228
#38 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x15f7b20) at kernel/qcoreapplication.cpp:1552
#39 0x00007f78e7473298 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1410
#40 0x00007f78e74c9843 in postEventSourceDispatch (s=0x16573d0) at kernel/qeventdispatcher_glib.cpp:271
#41 0x00007f78e32bdc3d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#42 0x00007f78e32bdf20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#43 0x00007f78e32bdfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#44 0x00007f78e74c9c57 in QEventDispatcherGlib::processEvents (this=0x16669c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#45 0x00007f78e746e3e2 in QEventLoop::exec (this=this@entry=0x7ffed93e9380, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#46 0x00007f78e747602c in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1188
#47 0x000000000042fd9b in main ()

Possible duplicates by query: bug 348520, bug 347958, bug 347932, bug 347908, bug 347494.

Reported using DrKonqi
Comment 1 David Edmundson 2015-06-02 10:21:55 UTC 
Fixed when Qt has their next release.

*** This bug has been marked as a duplicate of bug 345544 ***