Bug 345933

Summary: Plasma crashed
Product: [Plasma] plasmashell Reporter: clickwir631
Component: generalAssignee: David Edmundson <kde>
Status: RESOLVED FIXED    
Severity: crash CC: bhush94, ken20001, notmart, pavilion99, plasma-bugs
Priority: NOR Keywords: drkonqi
Version: 5.2.2   
Target Milestone: 1.0   
Platform: Ubuntu   
OS: Linux   
Latest Commit: http://commits.kde.org/plasma-workspace/3d0a9cd462a7ab256b65dec7ed2035e0d7658818 Version Fixed In:
Sentry Crash Report:

Description clickwir631 2015-04-07 00:26:22 UTC 
Application: plasmashell (5.2.2)

Qt Version: 5.4.1
Operating System: Linux 3.19.0-12-generic x86_64
Distribution: Ubuntu Vivid Vervet (development branch)

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

Had just closed Steam after playing Eufloria. Game played fine. Closed Steam ok. Was hovering over the icons by the time to see what they are since I'm not completely familar with them yet. Hovered over the clipboard one and got the crash message.

-- 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 0x7f5e293617c0 (LWP 2002))]

Thread 46 (Thread 0x7f5e0f3df700 (LWP 2023)):
#0  0x00007f5e2079e7a4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f5e207598b9 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f5e20759e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5e20759fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f5e249c2c6c in QEventDispatcherGlib::processEvents (this=0x7f5e000008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f5e249673e2 in QEventLoop::exec (this=this@entry=0x7f5e0f3dede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f5e24726b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f5e264c9f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f5e2472bb0e in QThreadPrivate::start (arg=0x18e6eb0) at thread/qthread_unix.cpp:337
#9  0x00007f5e239276aa in start_thread (arg=0x7f5e0f3df700) at pthread_create.c:333
#10 0x00007f5e240aeeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 45 (Thread 0x7f5dfd657700 (LWP 2047)):
#0  0x00007f5e2079e7a4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f5e207593f0 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f5e20759de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5e20759fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f5e249c2c6c in QEventDispatcherGlib::processEvents (this=0x7f5df80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f5e249673e2 in QEventLoop::exec (this=this@entry=0x7f5dfd656de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f5e24726b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f5e264c9f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f5e2472bb0e in QThreadPrivate::start (arg=0x209c690) at thread/qthread_unix.cpp:337
#9  0x00007f5e239276aa in start_thread (arg=0x7f5dfd657700) at pthread_create.c:333
#10 0x00007f5e240aeeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 44 (Thread 0x7f5df7797700 (LWP 2064)):
#0  __libc_disable_asynccancel () at ../sysdeps/unix/sysv/linux/x86_64/cancellation.S:98
#1  0x00007f5e2409f4a9 in read () at ../sysdeps/unix/syscall-template.S:81
#2  0x00007f5e2079d2f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5e2075996c in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f5e20759e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f5e20759fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f5e249c2c6c in QEventDispatcherGlib::processEvents (this=0x7f5df00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#7  0x00007f5e249673e2 in QEventLoop::exec (this=this@entry=0x7f5df7796de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#8  0x00007f5e24726b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#9  0x00007f5e264c9f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#10 0x00007f5e2472bb0e in QThreadPrivate::start (arg=0x1e4fa50) at thread/qthread_unix.cpp:337
#11 0x00007f5e239276aa in start_thread (arg=0x7f5df7797700) at pthread_create.c:333
#12 0x00007f5e240aeeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 43 (Thread 0x7f5df6796700 (LWP 2065)):
#0  0x00007f5e2409f49d in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f5e2079d2f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f5e2075996c in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5e20759e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f5e20759fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f5e249c2c6c in QEventDispatcherGlib::processEvents (this=0x7f5de80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#6  0x00007f5e249673e2 in QEventLoop::exec (this=this@entry=0x7f5df6795de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#7  0x00007f5e24726b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#8  0x00007f5e264c9f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007f5e2472bb0e in QThreadPrivate::start (arg=0x1cdb040) at thread/qthread_unix.cpp:337
#10 0x00007f5e239276aa in start_thread (arg=0x7f5df6796700) at pthread_create.c:333
#11 0x00007f5e240aeeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 42 (Thread 0x7f5df56a5700 (LWP 2066)):
#0  0x00007f5e240a38dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f5e20759ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f5e20759fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5e249c2c6c in QEventDispatcherGlib::processEvents (this=0x7f5dec0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f5e249673e2 in QEventLoop::exec (this=this@entry=0x7f5df56a4de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f5e24726b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f5e264c9f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f5e2472bb0e in QThreadPrivate::start (arg=0x1f65f00) at thread/qthread_unix.cpp:337
#8  0x00007f5e239276aa in start_thread (arg=0x7f5df56a5700) at pthread_create.c:333
#9  0x00007f5e240aeeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 41 (Thread 0x7f5de7fff700 (LWP 2068)):
#0  0x00007f5e2079e789 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f5e207592d7 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f5e20759de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5e20759fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f5e249c2c6c in QEventDispatcherGlib::processEvents (this=0x7f5de00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f5e249673e2 in QEventLoop::exec (this=this@entry=0x7f5de7ffede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f5e24726b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f5e264c9f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f5e2472bb0e in QThreadPrivate::start (arg=0x216e180) at thread/qthread_unix.cpp:337
#9  0x00007f5e239276aa in start_thread (arg=0x7f5de7fff700) at pthread_create.c:333
#10 0x00007f5e240aeeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 40 (Thread 0x7f5de6ffe700 (LWP 2069)):
#0  0x00007f5e2409f49d in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f5e2079d2f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f5e2075996c in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5e20759e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f5e20759fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f5e249c2c6c in QEventDispatcherGlib::processEvents (this=0x7f5dd80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#6  0x00007f5e249673e2 in QEventLoop::exec (this=this@entry=0x7f5de6ffdde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#7  0x00007f5e24726b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#8  0x00007f5e264c9f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007f5e2472bb0e in QThreadPrivate::start (arg=0x225cff0) at thread/qthread_unix.cpp:337
#10 0x00007f5e239276aa in start_thread (arg=0x7f5de6ffe700) at pthread_create.c:333
#11 0x00007f5e240aeeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 39 (Thread 0x7f5de5ffd700 (LWP 2070)):
#0  0x00007ffdf9c02c56 in clock_gettime ()
#1  0x00007f5e240bd38d in __GI___clock_gettime (clock_id=<optimized out>, tp=<optimized out>) at ../sysdeps/unix/clock_gettime.c:115
#2  0x00007f5e247e1cb6 in qt_clock_gettime (ts=0x7f5de5ffcb40, 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  0x00007f5e249c0639 in QTimerInfoList::updateCurrentTime (this=this@entry=0x7f5ddc0030d0) at kernel/qtimerinfo_unix.cpp:84
#6  0x00007f5e249c0ba5 in QTimerInfoList::timerWait (this=0x7f5ddc0030d0, tm=...) at kernel/qtimerinfo_unix.cpp:379
#7  0x00007f5e249c203e in timerSourcePrepareHelper (timeout=0x7f5de5ffcc14, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:127
#8  timerSourcePrepare (source=<optimized out>, timeout=0x7f5de5ffcc14) at kernel/qeventdispatcher_glib.cpp:160
#9  0x00007f5e207593fd in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f5e20759de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f5e20759fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007f5e249c2c6c in QEventDispatcherGlib::processEvents (this=0x7f5ddc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#13 0x00007f5e249673e2 in QEventLoop::exec (this=this@entry=0x7f5de5ffcde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#14 0x00007f5e24726b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#15 0x00007f5e264c9f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#16 0x00007f5e2472bb0e in QThreadPrivate::start (arg=0x23513b0) at thread/qthread_unix.cpp:337
#17 0x00007f5e239276aa in start_thread (arg=0x7f5de5ffd700) at pthread_create.c:333
#18 0x00007f5e240aeeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 38 (Thread 0x7f5de4ffc700 (LWP 2072)):
#0  0x00007f5e2079e789 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f5e20759a16 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f5e20759f20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5e20759fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f5e249c2c6c in QEventDispatcherGlib::processEvents (this=0x7f5dd00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f5e249673e2 in QEventLoop::exec (this=this@entry=0x7f5de4ffbde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f5e24726b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f5e264c9f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f5e2472bb0e in QThreadPrivate::start (arg=0x243f3d0) at thread/qthread_unix.cpp:337
#9  0x00007f5e239276aa in start_thread (arg=0x7f5de4ffc700) at pthread_create.c:333
#10 0x00007f5e240aeeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 37 (Thread 0x7f5dd77ff700 (LWP 2073)):
#0  0x00007f5e240a38dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f5e20759ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f5e20759fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5e249c2c6c in QEventDispatcherGlib::processEvents (this=0x7f5dcc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f5e249673e2 in QEventLoop::exec (this=this@entry=0x7f5dd77fede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f5e24726b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f5e264c9f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f5e2472bb0e in QThreadPrivate::start (arg=0x244a0d0) at thread/qthread_unix.cpp:337
#8  0x00007f5e239276aa in start_thread (arg=0x7f5dd77ff700) at pthread_create.c:333
#9  0x00007f5e240aeeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 36 (Thread 0x7f5dd67fe700 (LWP 2074)):
#0  0x00007f5e24723e0f in testAndSetRelaxed<QMutexData*> (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=0x1, _q_value=@0x2631858: 0x0) at ../../include/QtCore/../../src/corelib/arch/qatomic_x86.h:259
#1  testAndSetRelease<QMutexData*, QMutexData*> (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=0x1, _q_value=@0x2631858: 0x0) at ../../include/QtCore/../../src/corelib/thread/qgenericatomic.h:175
#2  testAndSetRelease (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=0x1, this=this@entry=0x2631858) at ../../include/QtCore/../../src/corelib/thread/qbasicatomic.h:272
#3  fastTryUnlock (current=<synthetic pointer>, this=this@entry=0x2631858) at thread/qmutex.h:85
#4  QMutex::unlock (this=this@entry=0x2631858) at thread/qmutex.cpp:264
#5  0x00007f5e249c21ed 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=0x2631830) at ../../include/QtCore/5.4.1/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:244
#8  postEventSourcePrepare (s=0x7f5dc40012d0, timeout=0x7f5dd67fdc14) at kernel/qeventdispatcher_glib.cpp:254
#9  0x00007f5e207593fd in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f5e20759de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f5e20759fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007f5e249c2c6c in QEventDispatcherGlib::processEvents (this=0x7f5dc40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#13 0x00007f5e249673e2 in QEventLoop::exec (this=this@entry=0x7f5dd67fdde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#14 0x00007f5e24726b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#15 0x00007f5e264c9f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#16 0x00007f5e2472bb0e in QThreadPrivate::start (arg=0x26385e0) at thread/qthread_unix.cpp:337
#17 0x00007f5e239276aa in start_thread (arg=0x7f5dd67fe700) at pthread_create.c:333
#18 0x00007f5e240aeeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 35 (Thread 0x7f5dd57fd700 (LWP 2076)):
#0  0x00007f5e240a38dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f5e20759ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f5e20759fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5e249c2c6c in QEventDispatcherGlib::processEvents (this=0x7f5dc80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f5e249673e2 in QEventLoop::exec (this=this@entry=0x7f5dd57fcde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f5e24726b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f5e264c9f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f5e2472bb0e in QThreadPrivate::start (arg=0x272ddf0) at thread/qthread_unix.cpp:337
#8  0x00007f5e239276aa in start_thread (arg=0x7f5dd57fd700) at pthread_create.c:333
#9  0x00007f5e240aeeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 34 (Thread 0x7f5dc3fff700 (LWP 2077)):
#0  0x00007f5e240a38dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f5e20759ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f5e20759fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5e249c2c6c in QEventDispatcherGlib::processEvents (this=0x7f5dbc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f5e249673e2 in QEventLoop::exec (this=this@entry=0x7f5dc3ffede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f5e24726b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f5e264c9f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f5e2472bb0e in QThreadPrivate::start (arg=0x281e5e0) at thread/qthread_unix.cpp:337
#8  0x00007f5e239276aa in start_thread (arg=0x7f5dc3fff700) at pthread_create.c:333
#9  0x00007f5e240aeeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 33 (Thread 0x7f5dc2ffe700 (LWP 2080)):
#0  0x00007f5e20759448 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f5e20759de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f5e20759fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5e249c2c6c in QEventDispatcherGlib::processEvents (this=0x7f5db40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f5e249673e2 in QEventLoop::exec (this=this@entry=0x7f5dc2ffdde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f5e24726b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f5e264c9f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f5e2472bb0e in QThreadPrivate::start (arg=0x2907820) at thread/qthread_unix.cpp:337
#8  0x00007f5e239276aa in start_thread (arg=0x7f5dc2ffe700) at pthread_create.c:333
#9  0x00007f5e240aeeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 32 (Thread 0x7f5dc1ffd700 (LWP 2081)):
#0  0x00007f5e2079e789 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f5e20759409 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f5e20759de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5e20759fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f5e249c2c6c in QEventDispatcherGlib::processEvents (this=0x7f5db80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f5e249673e2 in QEventLoop::exec (this=this@entry=0x7f5dc1ffcde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f5e24726b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f5e264c9f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f5e2472bb0e in QThreadPrivate::start (arg=0x2a2f550) at thread/qthread_unix.cpp:337
#9  0x00007f5e239276aa in start_thread (arg=0x7f5dc1ffd700) at pthread_create.c:333
#10 0x00007f5e240aeeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 31 (Thread 0x7f5dc0ffc700 (LWP 2082)):
#0  0x00007f5e2409f49d in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f5e2079d2f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f5e2075996c in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5e20759e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f5e20759fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f5e249c2c6c in QEventDispatcherGlib::processEvents (this=0x7f5dac0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#6  0x00007f5e249673e2 in QEventLoop::exec (this=this@entry=0x7f5dc0ffbde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#7  0x00007f5e24726b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#8  0x00007f5e264c9f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007f5e2472bb0e in QThreadPrivate::start (arg=0x2aebb40) at thread/qthread_unix.cpp:337
#10 0x00007f5e239276aa in start_thread (arg=0x7f5dc0ffc700) at pthread_create.c:333
#11 0x00007f5e240aeeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 30 (Thread 0x7f5db37ff700 (LWP 2084)):
#0  0x00007f5e2079e789 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f5e207598cc in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f5e20759e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5e20759fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f5e249c2c6c in QEventDispatcherGlib::processEvents (this=0x7f5da80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f5e249673e2 in QEventLoop::exec (this=this@entry=0x7f5db37fede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f5e24726b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f5e264c9f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f5e2472bb0e in QThreadPrivate::start (arg=0x2bdd840) at thread/qthread_unix.cpp:337
#9  0x00007f5e239276aa in start_thread (arg=0x7f5db37ff700) at pthread_create.c:333
#10 0x00007f5e240aeeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 29 (Thread 0x7f5db27fe700 (LWP 2085)):
#0  0x00007f5e240a38dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f5e20759ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f5e20759fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5e249c2c6c in QEventDispatcherGlib::processEvents (this=0x7f5da00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f5e249673e2 in QEventLoop::exec (this=this@entry=0x7f5db27fdde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f5e24726b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f5e264c9f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f5e2472bb0e in QThreadPrivate::start (arg=0x2cce070) at thread/qthread_unix.cpp:337
#8  0x00007f5e239276aa in start_thread (arg=0x7f5db27fe700) at pthread_create.c:333
#9  0x00007f5e240aeeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 28 (Thread 0x7f5db17fd700 (LWP 2086)):
#0  0x00007f5e24723e0f in testAndSetRelaxed<QMutexData*> (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=0x1, _q_value=@0x2e01b28: 0x0) at ../../include/QtCore/../../src/corelib/arch/qatomic_x86.h:259
#1  testAndSetRelease<QMutexData*, QMutexData*> (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=0x1, _q_value=@0x2e01b28: 0x0) at ../../include/QtCore/../../src/corelib/thread/qgenericatomic.h:175
#2  testAndSetRelease (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=0x1, this=this@entry=0x2e01b28) at ../../include/QtCore/../../src/corelib/thread/qbasicatomic.h:272
#3  fastTryUnlock (current=<synthetic pointer>, this=this@entry=0x2e01b28) at thread/qmutex.h:85
#4  QMutex::unlock (this=this@entry=0x2e01b28) at thread/qmutex.cpp:264
#5  0x00007f5e249c21ed 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=0x2e01b00) at ../../include/QtCore/5.4.1/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:244
#8  postEventSourcePrepare (s=0x7f5da40012d0, timeout=0x7f5db17fcc14) at kernel/qeventdispatcher_glib.cpp:254
#9  0x00007f5e207593fd in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f5e20759de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f5e20759fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007f5e249c2c6c in QEventDispatcherGlib::processEvents (this=0x7f5da40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#13 0x00007f5e249673e2 in QEventLoop::exec (this=this@entry=0x7f5db17fcde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#14 0x00007f5e24726b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#15 0x00007f5e264c9f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#16 0x00007f5e2472bb0e in QThreadPrivate::start (arg=0x2dd5fc0) at thread/qthread_unix.cpp:337
#17 0x00007f5e239276aa in start_thread (arg=0x7f5db17fd700) at pthread_create.c:333
#18 0x00007f5e240aeeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 27 (Thread 0x7f5d9ffff700 (LWP 2087)):
#0  0x00007f5e20756efe in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f5e2075939b in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f5e20759de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5e20759fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f5e249c2c6c in QEventDispatcherGlib::processEvents (this=0x7f5d980008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f5e249673e2 in QEventLoop::exec (this=this@entry=0x7f5d9fffede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f5e24726b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f5e264c9f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f5e2472bb0e in QThreadPrivate::start (arg=0x2efc0f0) at thread/qthread_unix.cpp:337
#9  0x00007f5e239276aa in start_thread (arg=0x7f5d9ffff700) at pthread_create.c:333
#10 0x00007f5e240aeeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 26 (Thread 0x7f5d9effe700 (LWP 2089)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f5e2847d644 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#2  0x00007f5e2847d689 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#3  0x00007f5e239276aa in start_thread (arg=0x7f5d9effe700) at pthread_create.c:333
#4  0x00007f5e240aeeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 25 (Thread 0x7f5d9e7fd700 (LWP 2090)):
#0  0x00007f5e247239ca in testAndSetRelaxed<QMutexData*> (currentValue=<synthetic pointer>, newValue=0x1, expectedValue=0x0, _q_value=@0x2fcbdc8: 0x1) at ../../include/QtCore/../../src/corelib/arch/qatomic_x86.h:259
#1  testAndSetAcquire<QMutexData*, QMutexData*> (currentValue=<synthetic pointer>, newValue=0x1, expectedValue=0x0, _q_value=@0x2fcbdc8: 0x1) at ../../include/QtCore/../../src/corelib/thread/qgenericatomic.h:166
#2  testAndSetAcquire (currentValue=<synthetic pointer>, newValue=0x1, expectedValue=0x0, this=0x2fcbdc8, this@entry=0x29) at ../../include/QtCore/../../src/corelib/thread/qbasicatomic.h:270
#3  fastTryLock (current=<synthetic pointer>, this=0x2fcbdc8, this@entry=0x29) at thread/qmutex.h:82
#4  QMutex::lock (this=this@entry=0x2fcbdc8) at thread/qmutex.cpp:212
#5  0x00007f5e249c25a9 in QMutexLocker (m=0x2fcbdc8, this=<synthetic pointer>) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:128
#6  canWaitLocked (this=0x2fcbda0) at ../../include/QtCore/5.4.1/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:243
#7  postEventSourcePrepare (timeout=<synthetic pointer>, s=0x7f5d100012d0) at kernel/qeventdispatcher_glib.cpp:254
#8  postEventSourceCheck (source=0x7f5d100012d0) at kernel/qeventdispatcher_glib.cpp:264
#9  0x00007f5e207598c1 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f5e20759e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f5e20759fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007f5e249c2c6c in QEventDispatcherGlib::processEvents (this=0x7f5d100008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#13 0x00007f5e249673e2 in QEventLoop::exec (this=this@entry=0x7f5d9e7fcde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#14 0x00007f5e24726b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#15 0x00007f5e264c9f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#16 0x00007f5e2472bb0e in QThreadPrivate::start (arg=0x2fcbbf0) at thread/qthread_unix.cpp:337
#17 0x00007f5e239276aa in start_thread (arg=0x7f5d9e7fd700) at pthread_create.c:333
#18 0x00007f5e240aeeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 24 (Thread 0x7f5d9d7fc700 (LWP 2114)):
#0  0x00007f5e240a38dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f5e20759ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f5e20759fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5e249c2c6c in QEventDispatcherGlib::processEvents (this=0x7f5d140008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f5e249673e2 in QEventLoop::exec (this=this@entry=0x7f5d9d7fbde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f5e24726b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f5e264c9f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f5e2472bb0e in QThreadPrivate::start (arg=0x25c8180) at thread/qthread_unix.cpp:337
#8  0x00007f5e239276aa in start_thread (arg=0x7f5d9d7fc700) at pthread_create.c:333
#9  0x00007f5e240aeeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 23 (Thread 0x7f5d0ffff700 (LWP 2115)):
#0  0x00007f5e240a38dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f5e20759ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f5e20759fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5e249c2c6c in QEventDispatcherGlib::processEvents (this=0x7f5d080008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f5e249673e2 in QEventLoop::exec (this=this@entry=0x7f5d0fffede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f5e24726b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f5e264c9f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f5e2472bb0e in QThreadPrivate::start (arg=0x356fde0) at thread/qthread_unix.cpp:337
#8  0x00007f5e239276aa in start_thread (arg=0x7f5d0ffff700) at pthread_create.c:333
#9  0x00007f5e240aeeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 22 (Thread 0x7f5d0eeef700 (LWP 2136)):
#0  0x00007f5e2079e7a4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f5e20759eb1 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f5e20759fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5e249c2c6c in QEventDispatcherGlib::processEvents (this=0x7f5d000008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f5e249673e2 in QEventLoop::exec (this=this@entry=0x7f5d0eeeede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f5e24726b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f5e264c9f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f5e2472bb0e in QThreadPrivate::start (arg=0x36d8e30) at thread/qthread_unix.cpp:337
#8  0x00007f5e239276aa in start_thread (arg=0x7f5d0eeef700) at pthread_create.c:333
#9  0x00007f5e240aeeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 21 (Thread 0x7f5d0dc47700 (LWP 2137)):
#0  0x00007f5e24723e0f in testAndSetRelaxed<QMutexData*> (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=0x1, _q_value=@0x340c1d8: 0x0) at ../../include/QtCore/../../src/corelib/arch/qatomic_x86.h:259
#1  testAndSetRelease<QMutexData*, QMutexData*> (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=0x1, _q_value=@0x340c1d8: 0x0) at ../../include/QtCore/../../src/corelib/thread/qgenericatomic.h:175
#2  testAndSetRelease (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=0x1, this=this@entry=0x340c1d8) at ../../include/QtCore/../../src/corelib/thread/qbasicatomic.h:272
#3  fastTryUnlock (current=<synthetic pointer>, this=this@entry=0x340c1d8) at thread/qmutex.h:85
#4  QMutex::unlock (this=this@entry=0x340c1d8) at thread/qmutex.cpp:264
#5  0x00007f5e249c21ed 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=0x340c1b0) at ../../include/QtCore/5.4.1/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:244
#8  postEventSourcePrepare (s=0x7f5d040012d0, timeout=0x7f5d0dc46bc4) at kernel/qeventdispatcher_glib.cpp:254
#9  0x00007f5e207593fd in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f5e20759de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f5e20759fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007f5e249c2c6c in QEventDispatcherGlib::processEvents (this=0x7f5d040008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#13 0x00007f5e249673e2 in QEventLoop::exec (this=this@entry=0x7f5d0dc46d90, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#14 0x00007f5e24726b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#15 0x00007f5e28ff8b56 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#16 0x00007f5e2472bb0e in QThreadPrivate::start (arg=0x3422550) at thread/qthread_unix.cpp:337
#17 0x00007f5e239276aa in start_thread (arg=0x7f5d0dc47700) at pthread_create.c:333
#18 0x00007f5e240aeeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 20 (Thread 0x7f5d0d05d700 (LWP 2139)):
#0  0x00007f5e2079e789 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f5e20758df0 in g_main_context_acquire () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f5e20759d75 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5e20759fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f5e249c2c6c in QEventDispatcherGlib::processEvents (this=0x7f5cf80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f5e249673e2 in QEventLoop::exec (this=this@entry=0x7f5d0d05cd90, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f5e24726b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f5e28ff8b56 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#8  0x00007f5e2472bb0e in QThreadPrivate::start (arg=0x3820ae0) at thread/qthread_unix.cpp:337
#9  0x00007f5e239276aa in start_thread (arg=0x7f5d0d05d700) at pthread_create.c:333
#10 0x00007f5e240aeeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 19 (Thread 0x7f5cfffff700 (LWP 2141)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f5e2472cc6b in wait (time=18446744073709551615, this=0x1d620a0) at thread/qwaitcondition_unix.cpp:128
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x1d672c0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:200
#3  0x00007f5e2906afab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007f5e2906b3a0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f5e2472bb0e in QThreadPrivate::start (arg=0x1d67240) at thread/qthread_unix.cpp:337
#6  0x00007f5e239276aa in start_thread (arg=0x7f5cfffff700) at pthread_create.c:333
#7  0x00007f5e240aeeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 18 (Thread 0x7f5cfe7f8700 (LWP 2161)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f5e2472cc6b in wait (time=18446744073709551615, this=0x3c96ea0) at thread/qwaitcondition_unix.cpp:128
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x3be3d10, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:200
#3  0x00007f5e2906afab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007f5e2906b3a0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f5e2472bb0e in QThreadPrivate::start (arg=0x3be3c90) at thread/qthread_unix.cpp:337
#6  0x00007f5e239276aa in start_thread (arg=0x7f5cfe7f8700) at pthread_create.c:333
#7  0x00007f5e240aeeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 17 (Thread 0x7f5cfcff6700 (LWP 2167)):
#0  0x00007f5e240a38dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f5e20759ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f5e20759fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5e249c2c6c in QEventDispatcherGlib::processEvents (this=0x7f5cf00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f5e249673e2 in QEventLoop::exec (this=this@entry=0x7f5cfcff5de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f5e24726b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f5e264c9f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f5e2472bb0e in QThreadPrivate::start (arg=0x3c96fd0) at thread/qthread_unix.cpp:337
#8  0x00007f5e239276aa in start_thread (arg=0x7f5cfcff6700) at pthread_create.c:333
#9  0x00007f5e240aeeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 16 (Thread 0x7f5ce9367700 (LWP 2209)):
#0  0x00007f5e2079e7a4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f5e207593f0 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f5e20759de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5e20759fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f5e249c2c6c in QEventDispatcherGlib::processEvents (this=0x4132060, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f5e249673e2 in QEventLoop::exec (this=this@entry=0x7f5ce9366de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f5e24726b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f5e264c9f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f5e2472bb0e in QThreadPrivate::start (arg=0x4558fb0) at thread/qthread_unix.cpp:337
#9  0x00007f5e239276aa in start_thread (arg=0x7f5ce9367700) at pthread_create.c:333
#10 0x00007f5e240aeeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 15 (Thread 0x7f5ce8366700 (LWP 2211)):
#0  0x00007f5e2409f49d in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f5e2079d2f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f5e2075996c in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5e20759e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f5e20759fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f5e249c2c6c in QEventDispatcherGlib::processEvents (this=0x7f5cf0008520, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#6  0x00007f5e249673e2 in QEventLoop::exec (this=this@entry=0x7f5ce8365de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#7  0x00007f5e24726b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#8  0x00007f5e264c9f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007f5e2472bb0e in QThreadPrivate::start (arg=0x464d020) at thread/qthread_unix.cpp:337
#10 0x00007f5e239276aa in start_thread (arg=0x7f5ce8366700) at pthread_create.c:333
#11 0x00007f5e240aeeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 14 (Thread 0x7f5ce7365700 (LWP 2212)):
#0  0x00007f5e240a38dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f5e20759ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f5e20759fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5e249c2c6c in QEventDispatcherGlib::processEvents (this=0x7f5cec099240, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f5e249673e2 in QEventLoop::exec (this=this@entry=0x7f5ce7364de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f5e24726b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f5e264c9f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f5e2472bb0e in QThreadPrivate::start (arg=0x4741f30) at thread/qthread_unix.cpp:337
#8  0x00007f5e239276aa in start_thread (arg=0x7f5ce7365700) at pthread_create.c:333
#9  0x00007f5e240aeeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 13 (Thread 0x7f5ce62b4700 (LWP 2213)):
#0  0x00007f5e249c2035 in timerSourcePrepareHelper (timeout=0x7f5ce62b3c14, src=0x7f5cf420d920) at kernel/qeventdispatcher_glib.cpp:127
#1  timerSourcePrepare (source=0x7f5cf420d920, timeout=0x7f5ce62b3c14) at kernel/qeventdispatcher_glib.cpp:160
#2  0x00007f5e207593fd in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5e20759de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f5e20759fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f5e249c2c6c in QEventDispatcherGlib::processEvents (this=0x7f5cf420d900, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#6  0x00007f5e249673e2 in QEventLoop::exec (this=this@entry=0x7f5ce62b3de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#7  0x00007f5e24726b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#8  0x00007f5e264c9f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007f5e2472bb0e in QThreadPrivate::start (arg=0x48752b0) at thread/qthread_unix.cpp:337
#10 0x00007f5e239276aa in start_thread (arg=0x7f5ce62b4700) at pthread_create.c:333
#11 0x00007f5e240aeeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 12 (Thread 0x7f5ce51b3700 (LWP 2214)):
#0  0x00007f5e247239ca in testAndSetRelaxed<QMutexData*> (currentValue=<synthetic pointer>, newValue=0x1, expectedValue=0x0, _q_value=@0x49655e8: 0x1) at ../../include/QtCore/../../src/corelib/arch/qatomic_x86.h:259
#1  testAndSetAcquire<QMutexData*, QMutexData*> (currentValue=<synthetic pointer>, newValue=0x1, expectedValue=0x0, _q_value=@0x49655e8: 0x1) at ../../include/QtCore/../../src/corelib/thread/qgenericatomic.h:166
#2  testAndSetAcquire (currentValue=<synthetic pointer>, newValue=0x1, expectedValue=0x0, this=0x49655e8, this@entry=0x1) at ../../include/QtCore/../../src/corelib/thread/qbasicatomic.h:270
#3  fastTryLock (current=<synthetic pointer>, this=0x49655e8, this@entry=0x1) at thread/qmutex.h:82
#4  QMutex::lock (this=this@entry=0x49655e8) at thread/qmutex.cpp:212
#5  0x00007f5e249c21db in QMutexLocker (m=0x49655e8, this=<synthetic pointer>) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:128
#6  canWaitLocked (this=0x49655c0) at ../../include/QtCore/5.4.1/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:243
#7  postEventSourcePrepare (s=0x7f5cf80033e0, timeout=0x7f5ce51b2c14) at kernel/qeventdispatcher_glib.cpp:254
#8  0x00007f5e207593fd in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007f5e20759de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f5e20759fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f5e249c2c6c in QEventDispatcherGlib::processEvents (this=0x7f5cf8003480, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#12 0x00007f5e249673e2 in QEventLoop::exec (this=this@entry=0x7f5ce51b2de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#13 0x00007f5e24726b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#14 0x00007f5e264c9f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#15 0x00007f5e2472bb0e in QThreadPrivate::start (arg=0x496a4c0) at thread/qthread_unix.cpp:337
#16 0x00007f5e239276aa in start_thread (arg=0x7f5ce51b3700) at pthread_create.c:333
#17 0x00007f5e240aeeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 11 (Thread 0x7f5ce40b2700 (LWP 2216)):
#0  QMutexLocker (m=<optimized out>, this=<optimized out>) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:128
#1  canWaitLocked (this=<optimized out>) at ../../include/QtCore/5.4.1/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:243
#2  postEventSourcePrepare (s=0x7f5d04003fb0, timeout=0x7f5ce40b1c14) at kernel/qeventdispatcher_glib.cpp:254
#3  0x00007f5e207593fd in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f5e20759de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f5e20759fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f5e249c2c6c in QEventDispatcherGlib::processEvents (this=0x7f5d04003280, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#7  0x00007f5e249673e2 in QEventLoop::exec (this=this@entry=0x7f5ce40b1de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#8  0x00007f5e24726b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#9  0x00007f5e264c9f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#10 0x00007f5e2472bb0e in QThreadPrivate::start (arg=0x4a26020) at thread/qthread_unix.cpp:337
#11 0x00007f5e239276aa in start_thread (arg=0x7f5ce40b2700) at pthread_create.c:333
#12 0x00007f5e240aeeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7f5ce2fb1700 (LWP 2217)):
#0  __libc_enable_asynccancel () at ../sysdeps/unix/sysv/linux/x86_64/cancellation.S:65
#1  0x00007f5e240a38d2 in poll () at ../sysdeps/unix/syscall-template.S:81
#2  0x00007f5e20759ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5e20759fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f5e249c2c6c in QEventDispatcherGlib::processEvents (this=0x7f5d000013e0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f5e249673e2 in QEventLoop::exec (this=this@entry=0x7f5ce2fb0de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f5e24726b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f5e264c9f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f5e2472bb0e in QThreadPrivate::start (arg=0x4b555e0) at thread/qthread_unix.cpp:337
#9  0x00007f5e239276aa in start_thread (arg=0x7f5ce2fb1700) at pthread_create.c:333
#10 0x00007f5e240aeeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7f5ce1eb0700 (LWP 2218)):
#0  0x00007f5e240a38dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f5e20759ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f5e20759fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5e249c2c6c in QEventDispatcherGlib::processEvents (this=0x7f5d08008430, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f5e249673e2 in QEventLoop::exec (this=this@entry=0x7f5ce1eafde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f5e24726b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f5e264c9f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f5e2472bb0e in QThreadPrivate::start (arg=0x4c11160) at thread/qthread_unix.cpp:337
#8  0x00007f5e239276aa in start_thread (arg=0x7f5ce1eb0700) at pthread_create.c:333
#9  0x00007f5e240aeeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7f5cdb6f7700 (LWP 2331)):
#0  0x00007f5e2409f49d in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f5e2079d2f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f5e2075996c in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5e20759e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f5e20759fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f5e249c2c6c in QEventDispatcherGlib::processEvents (this=0x7f5d140013e0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#6  0x00007f5e249673e2 in QEventLoop::exec (this=this@entry=0x7f5cdb6f6dc0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#7  0x00007f5e24726b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#8  0x00007f5cdd997cf7 in KCupsConnection::run() () from /usr/lib/x86_64-linux-gnu/libkcupslib.so
#9  0x00007f5e2472bb0e in QThreadPrivate::start (arg=0x53cc240) at thread/qthread_unix.cpp:337
#10 0x00007f5e239276aa in start_thread (arg=0x7f5cdb6f7700) at pthread_create.c:333
#11 0x00007f5e240aeeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7f5cda7dd700 (LWP 2332)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f5e2472cc6b in wait (time=18446744073709551615, this=0x54c6080) at thread/qwaitcondition_unix.cpp:128
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x54c9b90, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:200
#3  0x00007f5e2906afab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007f5e2906b3a0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f5e2472bb0e in QThreadPrivate::start (arg=0x54c9b10) at thread/qthread_unix.cpp:337
#6  0x00007f5e239276aa in start_thread (arg=0x7f5cda7dd700) at pthread_create.c:333
#7  0x00007f5e240aeeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f5cd8ec5700 (LWP 2335)):
#0  0x00007f5e240a38dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f5e20759ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f5e20759fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5e249c2c6c in QEventDispatcherGlib::processEvents (this=0x7f5d98004bd0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f5e249673e2 in QEventLoop::exec (this=this@entry=0x7f5cd8ec4de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f5e24726b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f5e264c9f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f5e2472bb0e in QThreadPrivate::start (arg=0x5980780) at thread/qthread_unix.cpp:337
#8  0x00007f5e239276aa in start_thread (arg=0x7f5cd8ec5700) at pthread_create.c:333
#9  0x00007f5e240aeeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f5cd5586700 (LWP 2421)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f5e2472cc6b in wait (time=18446744073709551615, this=0x6080c20) at thread/qwaitcondition_unix.cpp:128
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x322c430, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:200
#3  0x00007f5e2906afab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007f5e2906b3a0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f5e2472bb0e in QThreadPrivate::start (arg=0x322c3b0) at thread/qthread_unix.cpp:337
#6  0x00007f5e239276aa in start_thread (arg=0x7f5cd5586700) at pthread_create.c:333
#7  0x00007f5e240aeeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f5cd3bbf700 (LWP 2424)):
#0  0x00007f5e2079e7a4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f5e207596f9 in g_main_context_query () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f5e20759e37 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5e20759fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f5e249c2c6c in QEventDispatcherGlib::processEvents (this=0x7f5da0008720, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f5e249673e2 in QEventLoop::exec (this=this@entry=0x7f5cd3bbede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f5e24726b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f5e264c9f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f5e2472bb0e in QThreadPrivate::start (arg=0x67d7cf0) at thread/qthread_unix.cpp:337
#9  0x00007f5e239276aa in start_thread (arg=0x7f5cd3bbf700) at pthread_create.c:333
#10 0x00007f5e240aeeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f5cd2947700 (LWP 2425)):
#0  0x00007f5e207594e8 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f5e20759de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f5e20759fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5e249c2c6c in QEventDispatcherGlib::processEvents (this=0x7f5da8008120, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f5e249673e2 in QEventLoop::exec (this=this@entry=0x7f5cd2946de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f5e24726b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f5e264c9f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f5e2472bb0e in QThreadPrivate::start (arg=0x6752690) at thread/qthread_unix.cpp:337
#8  0x00007f5e239276aa in start_thread (arg=0x7f5cd2947700) at pthread_create.c:333
#9  0x00007f5e240aeeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f5cd183a700 (LWP 2426)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f5e2472cc6b in wait (time=18446744073709551615, this=0x6a468f0) at thread/qwaitcondition_unix.cpp:128
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x6a45d80, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:200
#3  0x00007f5e2906afab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007f5e2906b3a0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f5e2472bb0e in QThreadPrivate::start (arg=0x6a45d00) at thread/qthread_unix.cpp:337
#6  0x00007f5e239276aa in start_thread (arg=0x7f5cd183a700) at pthread_create.c:333
#7  0x00007f5e240aeeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f5e293617c0 (LWP 2002)):
[KCrash Handler]
#6  0x00007f5e2466a090 in vtable for __cxxabiv1::__si_class_type_info () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#7  0x00007f5e253fadfd in QMenu::popup (this=this@entry=0x6f860e0, p=..., atAction=atAction@entry=0x0) at widgets/qmenu.cpp:1908
#8  0x00007f5ce9bf3f8a in SystemTray::DBusSystemTrayTask::_onContextMenu (this=<optimized out>, job=<optimized out>) at ../../../../applets/systemtray/plugin/protocols/dbussystemtray/dbussystemtraytask.cpp:247
#9  0x00007f5ce9c003f4 in SystemTray::DBusSystemTrayTask::qt_static_metacall (_o=0x63119c0, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at moc_dbussystemtraytask.cpp:217
#10 0x00007f5e2499a9c9 in QMetaObject::activate (sender=sender@entry=0x679d020, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=3, argv=argv@entry=0x7ffdf9bf5f60) at kernel/qobject.cpp:3716
#11 0x00007f5e2499b057 in QMetaObject::activate (sender=sender@entry=0x679d020, m=m@entry=0x7f5e27541420 <KJob::staticMetaObject>, local_signal_index=local_signal_index@entry=3, argv=argv@entry=0x7ffdf9bf5f60) at kernel/qobject.cpp:3582
#12 0x00007f5e272f72b2 in KJob::result (this=this@entry=0x679d020, _t1=_t1@entry=0x679d020) at ./moc_kjob.cpp:548
#13 0x00007f5e272f7dba in KJob::emitResult (this=0x679d020) at ../../../src/lib/jobs/kjob.cpp:294
#14 0x00007f5ce9379e89 in StatusNotifierItemJob::contextMenuReady (this=0x679d020, menu=0x6f860e0) at ../../../dataengines/statusnotifieritem/statusnotifieritemjob.cpp:53
#15 0x00007f5ce937f62c in StatusNotifierItemJob::qt_static_metacall (_o=0x6f860e0, _c=QMetaObject::InvokeMetaMethod, _id=-1, _a=0x0) at moc_statusnotifieritemjob.cpp:71
#16 0x00007f5e2499a9c9 in QMetaObject::activate (sender=0x6e92f90, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffdf9bf6170) at kernel/qobject.cpp:3716
#17 0x00007f5e2499b057 in QMetaObject::activate (sender=<optimized out>, m=m@entry=0x7f5ce9588c40 <StatusNotifierItemSource::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffdf9bf6170) at kernel/qobject.cpp:3582
#18 0x00007f5ce937f12f in StatusNotifierItemSource::contextMenuReady (this=<optimized out>, _t1=0x6f860e0) at moc_statusnotifieritemsource.cpp:183
#19 0x00007f5ce937f355 in StatusNotifierItemSource::qt_static_metacall (_o=0x6f860e0, _c=QMetaObject::InvokeMetaMethod, _id=-1, _a=0x0) at moc_statusnotifieritemsource.cpp:103
#20 0x00007f5e2499a9c9 in QMetaObject::activate (sender=0x6f65bf0, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3716
#21 0x00007f5e1dfeef4c in DBusMenuImporter::slotMenuAboutToShow() () from /usr/lib/x86_64-linux-gnu/libdbusmenu-qt5.so.2
#22 0x00007f5e2499a9c9 in QMetaObject::activate (sender=0x6f860e0, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3716
#23 0x00007f5e253fe8ad in _q_platformMenuAboutToShow (this=<optimized out>) at widgets/qmenu.cpp:1150
#24 QMenu::qt_static_metacall (_o=_o@entry=0x6f860e0, _c=_c@entry=QMetaObject::InvokeMetaMethod, _id=-1, _id@entry=0, _a=0x0, _a@entry=0x7ffdf9bf6820) at .moc/moc_qmenu.cpp:128
#25 0x00007f5e249736fa in QMetaMethod::invoke (this=this@entry=0x7ffdf9bf6a08, object=object@entry=0x6f860e0, connectionType=Qt::DirectConnection, connectionType@entry=4190071440, returnValue=..., val0=..., val1=..., val2=..., val3=..., val4=..., val5=..., val6=..., val7=..., val8=..., val9=...) at kernel/qmetaobject.cpp:2183
#26 0x00007f5e24978635 in QMetaObject::invokeMethod (obj=0x6f860e0, member=0x7f5e1dff621f "aboutToShow", type=4190071440, ret=..., val0=..., val1=..., val2=..., val3=..., val4=..., val5=..., val6=..., val7=..., val8=..., val9=...) at kernel/qmetaobject.cpp:1478
#27 0x00007f5e1dfe8519 in DBusMenuImporter::updateMenu() () from /usr/lib/x86_64-linux-gnu/libdbusmenu-qt5.so.2
#28 0x00007f5ce9372505 in StatusNotifierItemSource::contextMenu (this=0x6e92f90, x=<optimized out>, y=y@entry=1038) at ../../../dataengines/statusnotifieritem/statusnotifieritemsource.cpp:460
#29 0x00007f5ce937aa03 in StatusNotifierItemJob::start (this=0x679d020) at ../../../dataengines/statusnotifieritem/statusnotifieritemjob.cpp:43
#30 0x00007f5e2499b73a in QObject::event (this=0x679d020, e=<optimized out>) at kernel/qobject.cpp:1245
#31 0x00007f5e2527bb2c in QApplicationPrivate::notify_helper (this=0x18067a0, receiver=0x679d020, e=0x6f6f250) at kernel/qapplication.cpp:3720
#32 0x00007f5e25281000 in QApplication::notify (this=0x7ffdf9bf7600, receiver=0x679d020, e=0x6f6f250) at kernel/qapplication.cpp:3503
#33 0x00007f5e24969c2b in QCoreApplication::notifyInternal (this=0x7ffdf9bf7600, receiver=0x679d020, event=event@entry=0x6f6f250) at kernel/qcoreapplication.cpp:935
#34 0x00007f5e2496bc9b in sendEvent (event=0x6f6f250, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:228
#35 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x17fc280) at kernel/qcoreapplication.cpp:1552
#36 0x00007f5e2496c298 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1410
#37 0x00007f5e249c2843 in postEventSourceDispatch (s=0x183d4b0) at kernel/qeventdispatcher_glib.cpp:271
#38 0x00007f5e20759c3d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#39 0x00007f5e20759f20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#40 0x00007f5e20759fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#41 0x00007f5e249c2c57 in QEventDispatcherGlib::processEvents (this=0x183d490, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#42 0x00007f5e249673e2 in QEventLoop::exec (this=this@entry=0x7ffdf9bf7480, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#43 0x00007f5e2496f02c in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1188
#44 0x00007f5e24cb331c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1510
#45 0x00007f5e252777a5 in QApplication::exec () at kernel/qapplication.cpp:2956
#46 0x000000000042fd9b in main (argc=2, argv=<optimized out>) at ../../shell/main.cpp:158

Reported using DrKonqi
Comment 1 Marco Martin 2015-04-07 09:13:29 UTC 
could be Qt..
the crash is at QMenu::popup() on a menu that should be guaranteed to be a valid pointer, since it had been just qobject_casted without crash some lines before
Comment 2 David Edmundson 2015-05-13 23:35:09 UTC 
*** Bug 347690 has been marked as a duplicate of this bug. ***
Comment 3 Bhushan Shah 2015-06-08 10:29:33 UTC 
*** Bug 348862 has been marked as a duplicate of this bug. ***
Comment 4 Bhushan Shah 2015-06-12 11:57:11 UTC 

*** This bug has been marked as a duplicate of bug 343971 ***
Comment 5 David Edmundson 2015-07-06 08:55:38 UTC 
Git commit 3d0a9cd462a7ab256b65dec7ed2035e0d7658818 by David Edmundson.
Committed on 06/07/2015 at 08:53.
Pushed by davidedmundson into branch 'master'.

Use upcoming version of libdbusmenu-qt

This contains a temporary fork of the importer, with the main paths
fixed.
The old code spawned a new event loop in the signal QMenu::aboutToShow()
This refetched the menu, even though we had already fetched it, before
calling show.

Spawning new event loops from a QML function, leads to all sorts of
crashes. This
fixes that, and saves some pointless DBus traffic
Related: bug 343971, bug 345838
REVIEW: 123992

M  +5    -2    dataengines/statusnotifieritem/CMakeLists.txt
A  +2    -0    dataengines/statusnotifieritem/libdbusmenuqt/README
A  +532  -0    dataengines/statusnotifieritem/libdbusmenuqt/dbusmenuimporter.cpp     [License: LGPL (v2+)]
A  +109  -0    dataengines/statusnotifieritem/libdbusmenuqt/dbusmenuimporter.h     [License: LGPL (v2+)]
A  +82   -0    dataengines/statusnotifieritem/libdbusmenuqt/dbusmenushortcut_p.cpp     [License: LGPL (v2+)]
A  +39   -0    dataengines/statusnotifieritem/libdbusmenuqt/dbusmenushortcut_p.h     [License: LGPL (v2+)]
A  +111  -0    dataengines/statusnotifieritem/libdbusmenuqt/dbusmenutypes_p.cpp     [License: LGPL (v2+)]
A  +93   -0    dataengines/statusnotifieritem/libdbusmenuqt/dbusmenutypes_p.h     [License: LGPL (v2+)]
A  +64   -0    dataengines/statusnotifieritem/libdbusmenuqt/utils.cpp     [License: LGPL (v2+)]
A  +31   -0    dataengines/statusnotifieritem/libdbusmenuqt/utils_p.h     [License: LGPL (v2+)]

http://commits.kde.org/plasma-workspace/3d0a9cd462a7ab256b65dec7ed2035e0d7658818