Bug 346478

Summary: plasmashell segfault when disabling compositing
Product: [Plasma] plasmashell Reporter: Peter Cordes <peter>
Component: generalAssignee: David Edmundson <kde>
Status: RESOLVED DUPLICATE    
Severity: crash CC: bshah, plasma-bugs-null
Priority: NOR Keywords: drkonqi
Version First Reported In: 5.2.2   
Target Milestone: 1.0   
Platform: Ubuntu   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description Peter Cordes 2015-04-22 17:38:50 UTC 
Application: plasmashell (5.2.2)

Qt Version: 5.4.1
Operating System: Linux 3.19.0-15-generic x86_64
Distribution: Ubuntu 15.04

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

I disabled compositing (with shift+alt+f12, because one of my desktop effects was unwanted temporarily).  Plasmashell segfaulted.

In case it's relevant, Screen0 is my primary monitor, and plasmashell was displaying its taskbar on that head.  However, it was covered by an OpenGL window (xmoto) positioned to cover the entire screen.  (Not "fullscreen" mode, though; it still had its decorations.)

I hadn't done any package updates of any libraries, or anything that even has a GUI, since before the last reboot.

-- 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 0x7f4502ef37c0 (LWP 11187))]

Thread 31 (Thread 0x7f44d7fff700 (LWP 11209)):
#0  0x00007f44fa3f7789 in g_mutex_lock (mutex=mutex@entry=0x7f44cc000990) at /build/buildd/glib2.0-2.44.0/./glib/gthread-posix.c:1342
#1  0x00007f44fa3b28cc in g_main_context_check (context=context@entry=0x7f44cc000990, max_priority=2147483647, fds=fds@entry=0x7f44cc002e70, n_fds=n_fds@entry=1) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3651
#2  0x00007f44fa3b2e60 in g_main_context_iterate (context=context@entry=0x7f44cc000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3805
#3  0x00007f44fa3b2fcc in g_main_context_iteration (context=0x7f44cc000990, may_block=1) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3869
#4  0x00007f44fe5bec6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f44cc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f44fe5633e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f44d7ffede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f44fe322b44 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f45000b0f65 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f44fe327b0e in QThreadPrivate::start(void*) (arg=0x1b2b4c0) at thread/qthread_unix.cpp:337
#9  0x00007f44fd52d6aa in start_thread (arg=0x7f44d7fff700) at pthread_create.c:333
#10 0x00007f44fdcb1eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 30 (Thread 0x7f44cbfff700 (LWP 11211)):
#0  0x00007f44fd532da0 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f44dee2f4fb in radeon_drm_cs_emit_ioctl (mtx=0x1c929d8, cond=0x1c92a00) at ../../../../../../../include/c11/threads_posix.h:154
#2  0x00007f44dee2f4fb in radeon_drm_cs_emit_ioctl (sema=0x1c929d8) at ../../../../../../../src/gallium/auxiliary/os/os_thread.h:248
#3  0x00007f44dee2f4fb in radeon_drm_cs_emit_ioctl (param=param@entry=0x1c926c0) at ../../../../../../../src/gallium/winsys/radeon/drm/radeon_drm_winsys.c:594
#4  0x00007f44dee2ec87 in impl_thrd_routine (p=<optimized out>) at ../../../../../../../include/c11/threads_posix.h:87
#5  0x00007f44fd52d6aa in start_thread (arg=0x7f44cbfff700) at pthread_create.c:333
#6  0x00007f44fdcb1eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 29 (Thread 0x7f44c6fe5700 (LWP 11225)):
#0  0x00007f4502e9a61e in _dl_update_slotinfo (req_modid=1) at dl-tls.c:624
#1  0x00007f4502e9a87c in update_get_addr (ti=0x7f44fe7c1680) at dl-tls.c:801
#2  0x00007f44fe326a12 in QThreadData::current(bool) () at thread/qthread_unix.cpp:181
#3  0x00007f44fe326a12 in QThreadData::current(bool) (createIfNecessary=createIfNecessary@entry=true) at thread/qthread_unix.cpp:212
#4  0x00007f44fe5be591 in postEventSourceCheck(GSource*) (timeout=0x0, s=0x7f44bc0012d0) at kernel/qeventdispatcher_glib.cpp:247
#5  0x00007f44fe5be591 in postEventSourceCheck(GSource*) (source=0x7f44bc0012d0) at kernel/qeventdispatcher_glib.cpp:264
#6  0x00007f44fa3b28c1 in g_main_context_check (context=context@entry=0x7f44bc000990, max_priority=2147483647, fds=fds@entry=0x7f44bc003070, n_fds=n_fds@entry=1) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3649
#7  0x00007f44fa3b2e60 in g_main_context_iterate (context=context@entry=0x7f44bc000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3805
#8  0x00007f44fa3b2fcc in g_main_context_iteration (context=0x7f44bc000990, may_block=1) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3869
#9  0x00007f44fe5bec6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f44bc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#10 0x00007f44fe5633e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f44c6fe4de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#11 0x00007f44fe322b44 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:503
#12 0x00007f45000b0f65 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#13 0x00007f44fe327b0e in QThreadPrivate::start(void*) (arg=0x1e28970) at thread/qthread_unix.cpp:337
#14 0x00007f44fd52d6aa in start_thread (arg=0x7f44c6fe5700) at pthread_create.c:333
#15 0x00007f44fdcb1eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 28 (Thread 0x7f44bbfff700 (LWP 11246)):
#0  0x00007f44fa3afeb0 in g_source_iter_next (iter=iter@entry=0x7f44bbffec20, source=source@entry=0x7f44bbffec18) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:894
#1  0x00007f44fa3b27ef in g_main_context_check (context=context@entry=0x7f44b0000990, max_priority=2147483647, fds=fds@entry=0x7f44b0003070, n_fds=n_fds@entry=1) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3629
#2  0x00007f44fa3b2e60 in g_main_context_iterate (context=context@entry=0x7f44b0000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3805
#3  0x00007f44fa3b2fcc in g_main_context_iteration (context=0x7f44b0000990, may_block=1) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3869
#4  0x00007f44fe5bec6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f44b00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f44fe5633e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f44bbffede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f44fe322b44 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f45000b0f65 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f44fe327b0e in QThreadPrivate::start(void*) (arg=0x1da4180) at thread/qthread_unix.cpp:337
#9  0x00007f44fd52d6aa in start_thread (arg=0x7f44bbfff700) at pthread_create.c:333
#10 0x00007f44fdcb1eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 27 (Thread 0x7f44affff700 (LWP 11247)):
#0  0x00007f44fe31fe0f in QMutex::unlock() (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=0x1, _q_value=@0x1ffaeb8: 0x0) at ../../include/QtCore/../../src/corelib/arch/qatomic_x86.h:259
#1  0x00007f44fe31fe0f in QMutex::unlock() (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=0x1, _q_value=@0x1ffaeb8: 0x0) at ../../include/QtCore/../../src/corelib/thread/qgenericatomic.h:175
#2  0x00007f44fe31fe0f in QMutex::unlock() (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=0x1, this=this@entry=0x1ffaeb8) at ../../include/QtCore/../../src/corelib/thread/qbasicatomic.h:272
#3  0x00007f44fe31fe0f in QMutex::unlock() (current=<synthetic pointer>, this=this@entry=0x1ffaeb8) at thread/qmutex.h:85
#4  0x00007f44fe31fe0f in QMutex::unlock() (this=this@entry=0x1ffaeb8) at thread/qmutex.cpp:264
#5  0x00007f44fe5be1ed in postEventSourcePrepare(GSource*, gint*) (this=<synthetic pointer>) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:138
#6  0x00007f44fe5be1ed in postEventSourcePrepare(GSource*, gint*) (this=<synthetic pointer>, __in_chrg=<optimized out>) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:132
#7  0x00007f44fe5be1ed in postEventSourcePrepare(GSource*, gint*) (this=0x1ffae90) at ../../include/QtCore/5.4.1/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:244
#8  0x00007f44fe5be1ed in postEventSourcePrepare(GSource*, gint*) (s=0x7f44a40012d0, timeout=timeout@entry=0x7f44afffec14) at kernel/qeventdispatcher_glib.cpp:254
#9  0x00007f44fa3b23fd in g_main_context_prepare (context=context@entry=0x7f44a4000990, priority=priority@entry=0x7f44afffeca0) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3410
#10 0x00007f44fa3b2de8 in g_main_context_iterate (context=context@entry=0x7f44a4000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3788
#11 0x00007f44fa3b2fcc in g_main_context_iteration (context=0x7f44a4000990, may_block=1) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3869
#12 0x00007f44fe5bec6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f44a40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#13 0x00007f44fe5633e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f44afffede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#14 0x00007f44fe322b44 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:503
#15 0x00007f45000b0f65 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#16 0x00007f44fe327b0e in QThreadPrivate::start(void*) (arg=0x1f6a8a0) at thread/qthread_unix.cpp:337
#17 0x00007f44fd52d6aa in start_thread (arg=0x7f44affff700) at pthread_create.c:333
#18 0x00007f44fdcb1eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 26 (Thread 0x7f44a3fff700 (LWP 11248)):
#0  0x00007f44fa3f77a4 in g_mutex_unlock (mutex=0x7f4498000990) at /build/buildd/glib2.0-2.44.0/./glib/gthread-posix.c:1354
#1  0x00007f44fa3b2eb1 in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7f4498003270, timeout=-1, context=0x7f4498000990) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:4102
#2  0x00007f44fa3b2eb1 in g_main_context_iterate (context=context@entry=0x7f4498000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3803
#3  0x00007f44fa3b2fcc in g_main_context_iteration (context=0x7f4498000990, may_block=1) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3869
#4  0x00007f44fe5bec6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f44980008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f44fe5633e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f44a3ffede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f44fe322b44 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f45000b0f65 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f44fe327b0e in QThreadPrivate::start(void*) (arg=0x20ca1e0) at thread/qthread_unix.cpp:337
#9  0x00007f44fd52d6aa in start_thread (arg=0x7f44a3fff700) at pthread_create.c:333
#10 0x00007f44fdcb1eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 25 (Thread 0x7f4497fff700 (LWP 11249)):
#0  0x00007f44fdcbfc3f in __libc_enable_asynccancel () at ../sysdeps/unix/sysv/linux/x86_64/cancellation.S:65
#1  0x00007f44fdca68d2 in poll () at ../sysdeps/unix/syscall-template.S:81
#2  0x00007f44fa3b2ebc in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7f448c002e70, timeout=-1, context=0x7f448c000990) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:4103
#3  0x00007f44fa3b2ebc in g_main_context_iterate (context=context@entry=0x7f448c000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3803
#4  0x00007f44fa3b2fcc in g_main_context_iteration (context=0x7f448c000990, may_block=1) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3869
#5  0x00007f44fe5bec6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f448c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#6  0x00007f44fe5633e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f4497ffede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#7  0x00007f44fe322b44 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:503
#8  0x00007f45000b0f65 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007f44fe327b0e in QThreadPrivate::start(void*) (arg=0x21b6d40) at thread/qthread_unix.cpp:337
#10 0x00007f44fd52d6aa in start_thread (arg=0x7f4497fff700) at pthread_create.c:333
#11 0x00007f44fdcb1eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 24 (Thread 0x7f448bfff700 (LWP 11250)):
#0  0x00007f44fa3f77a4 in g_mutex_unlock (mutex=0x7f4480000990) at /build/buildd/glib2.0-2.44.0/./glib/gthread-posix.c:1354
#1  0x00007f44fa3b2fd6 in g_main_context_iteration (context=0x7f4480000990, may_block=<optimized out>) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3870
#2  0x00007f44fe5bec6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f44800008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#3  0x00007f44fe5633e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f448bffede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#4  0x00007f44fe322b44 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:503
#5  0x00007f45000b0f65 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#6  0x00007f44fe327b0e in QThreadPrivate::start(void*) (arg=0x22d4390) at thread/qthread_unix.cpp:337
#7  0x00007f44fd52d6aa in start_thread (arg=0x7f448bfff700) at pthread_create.c:333
#8  0x00007f44fdcb1eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 23 (Thread 0x7f447ffff700 (LWP 11251)):
#0  0x00007f44fdca68dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f44fa3b2ebc in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7f4474003270, timeout=-1, context=0x7f4474000990) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:4103
#2  0x00007f44fa3b2ebc in g_main_context_iterate (context=context@entry=0x7f4474000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3803
#3  0x00007f44fa3b2fcc in g_main_context_iteration (context=0x7f4474000990, may_block=1) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3869
#4  0x00007f44fe5bec6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f44740008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f44fe5633e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f447fffede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f44fe322b44 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f45000b0f65 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f44fe327b0e in QThreadPrivate::start(void*) (arg=0x23c9bc0) at thread/qthread_unix.cpp:337
#9  0x00007f44fd52d6aa in start_thread (arg=0x7f447ffff700) at pthread_create.c:333
#10 0x00007f44fdcb1eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 22 (Thread 0x7f4473fff700 (LWP 11252)):
#0  0x00007f44fa3f7789 in g_mutex_lock (mutex=mutex@entry=0x7f4468000990) at /build/buildd/glib2.0-2.44.0/./glib/gthread-posix.c:1342
#1  0x00007f44fa3b28cc in g_main_context_check (context=context@entry=0x7f4468000990, max_priority=2147483647, fds=fds@entry=0x7f4468003070, n_fds=n_fds@entry=1) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3651
#2  0x00007f44fa3b2e60 in g_main_context_iterate (context=context@entry=0x7f4468000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3805
#3  0x00007f44fa3b2fcc in g_main_context_iteration (context=0x7f4468000990, may_block=1) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3869
#4  0x00007f44fe5bec6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f44680008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f44fe5633e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f4473ffede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f44fe322b44 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f45000b0f65 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f44fe327b0e in QThreadPrivate::start(void*) (arg=0x24c76e0) at thread/qthread_unix.cpp:337
#9  0x00007f44fd52d6aa in start_thread (arg=0x7f4473fff700) at pthread_create.c:333
#10 0x00007f44fdcb1eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 21 (Thread 0x7f4467fff700 (LWP 11253)):
#0  0x00007f44fa3f77a4 in g_mutex_unlock (mutex=0x7f445c000990) at /build/buildd/glib2.0-2.44.0/./glib/gthread-posix.c:1354
#1  0x00007f44fa3b23f0 in g_main_context_prepare (context=context@entry=0x7f445c000990, priority=priority@entry=0x7f4467ffeca0) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3408
#2  0x00007f44fa3b2de8 in g_main_context_iterate (context=context@entry=0x7f445c000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3788
#3  0x00007f44fa3b2fcc in g_main_context_iteration (context=0x7f445c000990, may_block=1) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3869
#4  0x00007f44fe5bec6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f445c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f44fe5633e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f4467ffede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f44fe322b44 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f45000b0f65 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f44fe327b0e in QThreadPrivate::start(void*) (arg=0x2582e00) at thread/qthread_unix.cpp:337
#9  0x00007f44fd52d6aa in start_thread (arg=0x7f4467fff700) at pthread_create.c:333
#10 0x00007f44fdcb1eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 20 (Thread 0x7f445bfff700 (LWP 11254)):
#0  0x00007f44fa3f7789 in g_mutex_lock (mutex=mutex@entry=0x7f4450000990) at /build/buildd/glib2.0-2.44.0/./glib/gthread-posix.c:1342
#1  0x00007f44fa3b2409 in g_main_context_prepare (context=context@entry=0x7f4450000990, priority=priority@entry=0x7f445bffeca0) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3412
#2  0x00007f44fa3b2de8 in g_main_context_iterate (context=context@entry=0x7f4450000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3788
#3  0x00007f44fa3b2fcc in g_main_context_iteration (context=0x7f4450000990, may_block=1) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3869
#4  0x00007f44fe5bec6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f44500008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f44fe5633e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f445bffede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f44fe322b44 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f45000b0f65 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f44fe327b0e in QThreadPrivate::start(void*) (arg=0x26bc820) at thread/qthread_unix.cpp:337
#9  0x00007f44fd52d6aa in start_thread (arg=0x7f445bfff700) at pthread_create.c:333
#10 0x00007f44fdcb1eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 19 (Thread 0x7f444ffff700 (LWP 11255)):
#0  0x00007f44fa3f77a4 in g_mutex_unlock (mutex=0x7f4444000990) at /build/buildd/glib2.0-2.44.0/./glib/gthread-posix.c:1354
#1  0x00007f44fa3b2ddb in g_main_context_iterate (context=context@entry=0x7f4444000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3786
#2  0x00007f44fa3b2fcc in g_main_context_iteration (context=0x7f4444000990, may_block=1) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3869
#3  0x00007f44fe5bec6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f44440008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f44fe5633e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f444fffede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f44fe322b44 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f45000b0f65 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f44fe327b0e in QThreadPrivate::start(void*) (arg=0x2777e10) at thread/qthread_unix.cpp:337
#8  0x00007f44fd52d6aa in start_thread (arg=0x7f444ffff700) at pthread_create.c:333
#9  0x00007f44fdcb1eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 18 (Thread 0x7f4443fff700 (LWP 11257)):
#0  0x00007f44fa3f77a4 in g_mutex_unlock (mutex=0x7f4438000990) at /build/buildd/glib2.0-2.44.0/./glib/gthread-posix.c:1354
#1  0x00007f44fa3b23f0 in g_main_context_prepare (context=context@entry=0x7f4438000990, priority=priority@entry=0x7f4443ffeca0) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3408
#2  0x00007f44fa3b2de8 in g_main_context_iterate (context=context@entry=0x7f4438000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3788
#3  0x00007f44fa3b2fcc in g_main_context_iteration (context=0x7f4438000990, may_block=1) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3869
#4  0x00007f44fe5bec6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f44380008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f44fe5633e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f4443ffede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f44fe322b44 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f45000b0f65 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f44fe327b0e in QThreadPrivate::start(void*) (arg=0x28755d0) at thread/qthread_unix.cpp:337
#9  0x00007f44fd52d6aa in start_thread (arg=0x7f4443fff700) at pthread_create.c:333
#10 0x00007f44fdcb1eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 17 (Thread 0x7f4437fff700 (LWP 11258)):
#0  0x00007f44fd532da0 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f4502031644 in  () at /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#2  0x00007f4502031689 in  () at /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#3  0x00007f44fd52d6aa in start_thread (arg=0x7f4437fff700) at pthread_create.c:333
#4  0x00007f44fdcb1eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 16 (Thread 0x7f43b3ffe700 (LWP 11259)):
#0  0x00007f44fdca68dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f44fa3b2ebc in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7f43a8002c70, timeout=-1, context=0x7f43a8000990) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:4103
#2  0x00007f44fa3b2ebc in g_main_context_iterate (context=context@entry=0x7f43a8000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3803
#3  0x00007f44fa3b2fcc in g_main_context_iteration (context=0x7f43a8000990, may_block=1) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3869
#4  0x00007f44fe5bec6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f43a80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f44fe5633e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f43b3ffdde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f44fe322b44 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f45000b0f65 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f44fe327b0e in QThreadPrivate::start(void*) (arg=0x296cf60) at thread/qthread_unix.cpp:337
#9  0x00007f44fd52d6aa in start_thread (arg=0x7f43b3ffe700) at pthread_create.c:333
#10 0x00007f44fdcb1eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 15 (Thread 0x7f43a7fff700 (LWP 11266)):
#0  0x00007f44fa3f77a0 in g_mutex_unlock (mutex=0x7f439c000990) at /build/buildd/glib2.0-2.44.0/./glib/gthread-posix.c:1351
#1  0x00007f44fa3b28b9 in g_main_context_check (context=context@entry=0x7f439c000990, max_priority=2147483647, fds=fds@entry=0x7f439c003070, n_fds=n_fds@entry=1) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3647
#2  0x00007f44fa3b2e60 in g_main_context_iterate (context=context@entry=0x7f439c000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3805
#3  0x00007f44fa3b2fcc in g_main_context_iteration (context=0x7f439c000990, may_block=1) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3869
#4  0x00007f44fe5bec6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f439c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f44fe5633e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f43a7ffede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f44fe322b44 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f45000b0f65 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f44fe327b0e in QThreadPrivate::start(void*) (arg=0x2b03870) at thread/qthread_unix.cpp:337
#9  0x00007f44fd52d6aa in start_thread (arg=0x7f43a7fff700) at pthread_create.c:333
#10 0x00007f44fdcb1eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 14 (Thread 0x7f439bfff700 (LWP 11267)):
#0  0x00007f44fdca68dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f44fa3b2ebc in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7f4390003270, timeout=-1, context=0x7f4390000990) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:4103
#2  0x00007f44fa3b2ebc in g_main_context_iterate (context=context@entry=0x7f4390000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3803
#3  0x00007f44fa3b2fcc in g_main_context_iteration (context=0x7f4390000990, may_block=1) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3869
#4  0x00007f44fe5bec6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f43900008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f44fe5633e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f439bffede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f44fe322b44 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f45000b0f65 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f44fe327b0e in QThreadPrivate::start(void*) (arg=0x2c6f050) at thread/qthread_unix.cpp:337
#9  0x00007f44fd52d6aa in start_thread (arg=0x7f439bfff700) at pthread_create.c:333
#10 0x00007f44fdcb1eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 13 (Thread 0x7f438ffff700 (LWP 11278)):
#0  0x00007f44fdca68dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f44fa3b2ebc in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7f4384002c70, timeout=-1, context=0x7f4384000990) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:4103
#2  0x00007f44fa3b2ebc in g_main_context_iterate (context=context@entry=0x7f4384000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3803
#3  0x00007f44fa3b2fcc in g_main_context_iteration (context=0x7f4384000990, may_block=1) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3869
#4  0x00007f44fe5bec6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f43840008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f44fe5633e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f438fffede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f44fe322b44 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f45000b0f65 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f44fe327b0e in QThreadPrivate::start(void*) (arg=0x2df0e60) at thread/qthread_unix.cpp:337
#9  0x00007f44fd52d6aa in start_thread (arg=0x7f438ffff700) at pthread_create.c:333
#10 0x00007f44fdcb1eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 12 (Thread 0x7f4383fff700 (LWP 11281)):
#0  0x00007f44fa3f77a4 in g_mutex_unlock (mutex=0x7f4378000990) at /build/buildd/glib2.0-2.44.0/./glib/gthread-posix.c:1354
#1  0x00007f44fa3b2490 in g_main_context_prepare (context=context@entry=0x7f4378000990, priority=priority@entry=0x7f4383ffeca0) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3475
#2  0x00007f44fa3b2de8 in g_main_context_iterate (context=context@entry=0x7f4378000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3788
#3  0x00007f44fa3b2fcc in g_main_context_iteration (context=0x7f4378000990, may_block=1) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3869
#4  0x00007f44fe5bec6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f43780008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f44fe5633e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f4383ffede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f44fe322b44 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f45000b0f65 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f44fe327b0e in QThreadPrivate::start(void*) (arg=0x33dd5c0) at thread/qthread_unix.cpp:337
#9  0x00007f44fd52d6aa in start_thread (arg=0x7f4383fff700) at pthread_create.c:333
#10 0x00007f44fdcb1eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 11 (Thread 0x7f4377fff700 (LWP 11304)):
#0  0x00007f44fdca249d in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f44fa3f62f0 in g_wakeup_acknowledge (__nbytes=16, __buf=0x7f4377ffebd0, __fd=<optimized out>) at /usr/include/x86_64-linux-gnu/bits/unistd.h:44
#2  0x00007f44fa3f62f0 in g_wakeup_acknowledge (wakeup=0x7f4378002750) at /build/buildd/glib2.0-2.44.0/./glib/gwakeup.c:210
#3  0x00007f44fa3b296c in g_main_context_check (context=context@entry=0x7f436c000990, max_priority=2147483647, fds=fds@entry=0x7f436c003270, n_fds=n_fds@entry=1) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3600
#4  0x00007f44fa3b2e60 in g_main_context_iterate (context=context@entry=0x7f436c000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3805
#5  0x00007f44fa3b2fcc in g_main_context_iteration (context=0x7f436c000990, may_block=1) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3869
#6  0x00007f44fe5bec6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f436c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#7  0x00007f44fe5633e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f4377ffede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#8  0x00007f44fe322b44 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:503
#9  0x00007f45000b0f65 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#10 0x00007f44fe327b0e in QThreadPrivate::start(void*) (arg=0x39bd720) at thread/qthread_unix.cpp:337
#11 0x00007f44fd52d6aa in start_thread (arg=0x7f4377fff700) at pthread_create.c:333
#12 0x00007f44fdcb1eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7f436bfff700 (LWP 11305)):
#0  0x00007f44fa3f7789 in g_mutex_lock (mutex=mutex@entry=0x7f4360000990) at /build/buildd/glib2.0-2.44.0/./glib/gthread-posix.c:1342
#1  0x00007f44fa3b273e in g_main_context_check (context=context@entry=0x7f4360000990, max_priority=2147483647, fds=fds@entry=0x7f4360002e70, n_fds=n_fds@entry=1) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3589
#2  0x00007f44fa3b2e60 in g_main_context_iterate (context=context@entry=0x7f4360000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3805
#3  0x00007f44fa3b2fcc in g_main_context_iteration (context=0x7f4360000990, may_block=1) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3869
#4  0x00007f44fe5bec6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f43600008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f44fe5633e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f436bffede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f44fe322b44 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f45000b0f65 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f44fe327b0e in QThreadPrivate::start(void*) (arg=0x3a861c0) at thread/qthread_unix.cpp:337
#9  0x00007f44fd52d6aa in start_thread (arg=0x7f436bfff700) at pthread_create.c:333
#10 0x00007f44fdcb1eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7f435ffff700 (LWP 11306)):
#0  0x00007f44fdca68dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f44fa3b2ebc in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7f4354002e70, timeout=-1, context=0x7f4354000990) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:4103
#2  0x00007f44fa3b2ebc in g_main_context_iterate (context=context@entry=0x7f4354000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3803
#3  0x00007f44fa3b2fcc in g_main_context_iteration (context=0x7f4354000990, may_block=1) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3869
#4  0x00007f44fe5bec6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f43540008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f44fe5633e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f435fffede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f44fe322b44 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f45000b0f65 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f44fe327b0e in QThreadPrivate::start(void*) (arg=0x3b9cae0) at thread/qthread_unix.cpp:337
#9  0x00007f44fd52d6aa in start_thread (arg=0x7f435ffff700) at pthread_create.c:333
#10 0x00007f44fdcb1eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7f4353fff700 (LWP 11309)):
#0  0x00007f44fdca68dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f44fa3b2ebc in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7f4348003270, timeout=-1, context=0x7f4348000990) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:4103
#2  0x00007f44fa3b2ebc in g_main_context_iterate (context=context@entry=0x7f4348000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3803
#3  0x00007f44fa3b2fcc in g_main_context_iteration (context=0x7f4348000990, may_block=1) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3869
#4  0x00007f44fe5bec6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f43480008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f44fe5633e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f4353ffede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f44fe322b44 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f45000b0f65 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f44fe327b0e in QThreadPrivate::start(void*) (arg=0x3c71a70) at thread/qthread_unix.cpp:337
#9  0x00007f44fd52d6aa in start_thread (arg=0x7f4353fff700) at pthread_create.c:333
#10 0x00007f44fdcb1eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7f4347fff700 (LWP 11310)):
#0  0x00007f44fa3b2a0a in g_main_context_dispatch (context=context@entry=0x7f433c000990) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3732
#1  0x00007f44fa3b2f20 in g_main_context_iterate (context=context@entry=0x7f433c000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3808
#2  0x00007f44fa3b2fcc in g_main_context_iteration (context=0x7f433c000990, may_block=1) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3869
#3  0x00007f44fe5bec6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f433c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f44fe5633e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f4347ffede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f44fe322b44 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f45000b0f65 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f44fe327b0e in QThreadPrivate::start(void*) (arg=0x3d997f0) at thread/qthread_unix.cpp:337
#8  0x00007f44fd52d6aa in start_thread (arg=0x7f4347fff700) at pthread_create.c:333
#9  0x00007f44fdcb1eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f433bfff700 (LWP 11311)):
#0  0x00007f44fa3b2490 in g_main_context_prepare (context=context@entry=0x7f4330000990, priority=priority@entry=0x7f433bffeca0) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3477
#1  0x00007f44fa3b2de8 in g_main_context_iterate (context=context@entry=0x7f4330000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3788
#2  0x00007f44fa3b2fcc in g_main_context_iteration (context=0x7f4330000990, may_block=1) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3869
#3  0x00007f44fe5bec6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f43300008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f44fe5633e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f433bffede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f44fe322b44 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f45000b0f65 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f44fe327b0e in QThreadPrivate::start(void*) (arg=0x3e62f40) at thread/qthread_unix.cpp:337
#8  0x00007f44fd52d6aa in start_thread (arg=0x7f433bfff700) at pthread_create.c:333
#9  0x00007f44fdcb1eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f432ffff700 (LWP 11312)):
#0  0x00007f44fa3f77a4 in g_mutex_unlock (mutex=0x7f4324000990) at /build/buildd/glib2.0-2.44.0/./glib/gthread-posix.c:1354
#1  0x00007f44fa3b23f0 in g_main_context_prepare (context=context@entry=0x7f4324000990, priority=priority@entry=0x7f432fffeca0) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3408
#2  0x00007f44fa3b2de8 in g_main_context_iterate (context=context@entry=0x7f4324000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3788
#3  0x00007f44fa3b2fcc in g_main_context_iteration (context=0x7f4324000990, may_block=1) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3869
#4  0x00007f44fe5bec6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f43240008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f44fe5633e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f432fffede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f44fe322b44 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f45000b0f65 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f44fe327b0e in QThreadPrivate::start(void*) (arg=0x3f85ed0) at thread/qthread_unix.cpp:337
#9  0x00007f44fd52d6aa in start_thread (arg=0x7f432ffff700) at pthread_create.c:333
#10 0x00007f44fdcb1eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f4323fff700 (LWP 11414)):
#0  0x00007f44fdca68dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f44fa3b2ebc in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7f4318004cc0, timeout=64600, context=0x7f4318000990) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:4103
#2  0x00007f44fa3b2ebc in g_main_context_iterate (context=context@entry=0x7f4318000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3803
#3  0x00007f44fa3b2fcc in g_main_context_iteration (context=0x7f4318000990, may_block=1) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3869
#4  0x00007f44fe5bec6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f43180008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f44fe5633e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f4323ffedc0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f44fe322b44 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f448690acf7 in KCupsConnection::run() () at /usr/lib/x86_64-linux-gnu/libkcupslib.so
#8  0x00007f44fe327b0e in QThreadPrivate::start(void*) (arg=0x4508b20) at thread/qthread_unix.cpp:337
#9  0x00007f44fd52d6aa in start_thread (arg=0x7f4323fff700) at pthread_create.c:333
#10 0x00007f44fdcb1eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f4317fff700 (LWP 11415)):
#0  0x00007f44fa3b2a25 in g_main_context_dispatch (context=context@entry=0x7f430c000990) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3740
#1  0x00007f44fa3b2f20 in g_main_context_iterate (context=context@entry=0x7f430c000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3808
#2  0x00007f44fa3b2fcc in g_main_context_iteration (context=0x7f430c000990, may_block=1) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3869
#3  0x00007f44fe5bec6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f430c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f44fe5633e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f4317ffede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f44fe322b44 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f45000b0f65 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f44fe327b0e in QThreadPrivate::start(void*) (arg=0x46c2810) at thread/qthread_unix.cpp:337
#8  0x00007f44fd52d6aa in start_thread (arg=0x7f4317fff700) at pthread_create.c:333
#9  0x00007f44fdcb1eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f430bfff700 (LWP 20226)):
#0  0x00007f44fa3b29f0 in g_main_context_dispatch (context=context@entry=0x7f4300000990) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3732
#1  0x00007f44fa3b2f20 in g_main_context_iterate (context=context@entry=0x7f4300000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3808
#2  0x00007f44fa3b2fcc in g_main_context_iteration (context=0x7f4300000990, may_block=1) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3869
#3  0x00007f44fe5bec6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f43000008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f44fe5633e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f430bffede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f44fe322b44 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f45000b0f65 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f44fe327b0e in QThreadPrivate::start(void*) (arg=0x4d0a870) at thread/qthread_unix.cpp:337
#8  0x00007f44fd52d6aa in start_thread (arg=0x7f430bfff700) at pthread_create.c:333
#9  0x00007f44fdcb1eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f4502ef37c0 (LWP 11187)):
[KCrash Handler]
#6  0x00007f4502be5625 in QSGOpaqueTextureMaterial::setTexture(QSGTexture*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f4502be4d3c in QSGSimpleTextureNode::setTexture(QSGTexture*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#8  0x00007f44fbeafd9e in ManagedTextureNode::setTexture(QSharedPointer<QSGTexture>) (this=<optimized out>, texture=...) at ../../../src/quickaddons/managedtexturenode.cpp:28
#9  0x00007f44e8679c9a in Plasma::FrameSvgItem::updatePaintNode(QSGNode*, QQuickItem::UpdatePaintNodeData*) (this=0x34f6350, oldNode=0x4e7b5c0) at ../../../../src/declarativeimports/core/framesvgitem.cpp:495
#10 0x00007f4502c384bf in QQuickWindowPrivate::updateDirtyNode(QQuickItem*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#11 0x00007f4502c394cb in QQuickWindowPrivate::updateDirtyNodes() () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#12 0x00007f4502c39d80 in QQuickWindowPrivate::syncSceneGraph() () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#13 0x00007f4502c08f05 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#14 0x00007f4502c09979 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#15 0x00007f44fee6fb2c in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=0x1a334f0, receiver=0x1c81bb0, e=0x7ffd9738c180) at kernel/qapplication.cpp:3720
#16 0x00007f44fee75000 in QApplication::notify(QObject*, QEvent*) (this=0x7ffd9738c550, receiver=0x1c81bb0, e=0x7ffd9738c180) at kernel/qapplication.cpp:3503
#17 0x00007f44fe565c2b in QCoreApplication::notifyInternal(QObject*, QEvent*) (this=0x7ffd9738c550, receiver=0x1c81bb0, event=event@entry=0x7ffd9738c180) at kernel/qcoreapplication.cpp:935
#18 0x00007f44fe5bdae5 in QTimerInfoList::activateTimers() (event=0x7ffd9738c180, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:228
#19 0x00007f44fe5bdae5 in QTimerInfoList::activateTimers() (this=0x1a82c20) at kernel/qtimerinfo_unix.cpp:635
#20 0x00007f44fe5bdf61 in timerSourceDispatch(GSource*, GSourceFunc, gpointer) (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:177
#21 0x00007f44fa3b2c3d in g_main_context_dispatch (context=0x7f44e40016f0) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3122
#22 0x00007f44fa3b2c3d in g_main_context_dispatch (context=context@entry=0x7f44e40016f0) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3737
#23 0x00007f44fa3b2f20 in g_main_context_iterate (context=context@entry=0x7f44e40016f0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3808
#24 0x00007f44fa3b2fcc in g_main_context_iteration (context=0x7f44e40016f0, may_block=1) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3869
#25 0x00007f44fe5bec57 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x1a80460, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#26 0x00007f44fe5633e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffd9738c3d0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#27 0x00007f44fe56b02c in QCoreApplication::exec() () at kernel/qcoreapplication.cpp:1188
#28 0x00007f44fe8aa31c in QGuiApplication::exec() () at kernel/qguiapplication.cpp:1510
#29 0x00007f44fee6b7a5 in QApplication::exec() () at kernel/qapplication.cpp:2956
#30 0x000000000042fd9b in main(int, char**) (argc=2, argv=<optimized out>) at ../../shell/main.cpp:158

Reported using DrKonqi
Comment 1 David Edmundson 2015-04-22 17:40:48 UTC 
Thanks, will be fixed in next frameworks release

*** This bug has been marked as a duplicate of bug 346432 ***
Comment 2 David Edmundson 2015-04-22 17:46:23 UTC 
BTW, do you use a different Plasma theme to the default?
Comment 3 Peter Cordes 2015-04-25 18:45:10 UTC 
Yeah, I changed the plasma theme to breeze-dark to match the rest of my desktop.  (Very nice, BTW.  Always been a fan of light-on-dark for text.)