Bug 349293

Summary: Plasma freezes and then crashes clicking on taskbar
Product: [Plasma] plasmashell Reporter: Ar <d3trax>
Component: generalAssignee: David Edmundson <kde>
Status: RESOLVED DUPLICATE    
Severity: crash CC: bhush94, plasma-bugs
Priority: NOR Keywords: drkonqi
Version: 5.3.1   
Target Milestone: 1.0   
Platform: Fedora RPMs   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description Ar 2015-06-17 15:29:51 UTC 
Application: plasmashell (5.3.1)

Qt Version: 5.4.2
Operating System: Linux 4.0.4-303.fc22.x86_64 x86_64
Distribution: "Fedora release 22 (Twenty Two)"

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

I was trying open context menu for aplication in taskbar, but plasma hangs and some times crashes.

The crash can be reproduced sometimes.

-- Backtrace:
Application: Plasma (plasmashell), signal: Aborted
Using host libthread_db library "/lib64/libthread_db.so.1".
81	T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
[Current thread is 1 (Thread 0x7f66c92f8900 (LWP 13603))]

Thread 31 (Thread 0x7f66a9e44700 (LWP 13605)):
#0  0x00007f66c11bb66d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f66c75ad182 in poll (__timeout=-1, __nfds=1, __fds=0x7f66a9e43bc0) at /usr/include/bits/poll2.h:46
#2  _xcb_conn_wait (c=c@entry=0x153db40, cond=cond@entry=0x153db80, vector=vector@entry=0x0, count=count@entry=0x0) at xcb_conn.c:459
#3  0x00007f66c75aed07 in xcb_wait_for_event (c=0x153db40) at xcb_in.c:623
#4  0x00007f66ab98b9b9 in QXcbEventReader::run (this=0x1547b90) at qxcbconnection.cpp:1115
#5  0x00007f66c1dc5e3e in QThreadPrivate::start (arg=0x1547b90) at thread/qthread_unix.cpp:337
#6  0x00007f66bfc5c555 in start_thread (arg=0x7f66a9e44700) at pthread_create.c:333
#7  0x00007f66c11c6f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 30 (Thread 0x7f66a35ef700 (LWP 13627)):
#0  0x00007f66bc3b6ec9 in g_mutex_lock (mutex=mutex@entry=0x7f669c000990) at gthread-posix.c:1336
#1  0x00007f66bc370d60 in g_main_context_acquire (context=0x7f669c000990) at gmain.c:3182
#2  0x00007f66bc371c75 in g_main_context_iterate (context=context@entry=0x7f669c000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3758
#3  0x00007f66bc371ecc in g_main_context_iteration (context=0x7f669c000990, may_block=1) at gmain.c:3869
#4  0x00007f66c1ffcb8b in QEventDispatcherGlib::processEvents (this=0x7f669c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f66c1fa2eba in QEventLoop::exec (this=this@entry=0x7f66a35eeca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f66c1dc0f54 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f66c604a955 in QQmlThreadPrivate::run() () from /lib64/libQt5Qml.so.5
#8  0x00007f66c1dc5e3e in QThreadPrivate::start (arg=0x16241e0) at thread/qthread_unix.cpp:337
#9  0x00007f66bfc5c555 in start_thread (arg=0x7f66a35ef700) at pthread_create.c:333
#10 0x00007f66c11c6f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 29 (Thread 0x7f669ad8c700 (LWP 13628)):
#0  0x00007f66c11b72ed in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f66bc3b5b00 in read (__nbytes=16, __buf=0x7f669ad8baa0, __fd=<optimized out>) at /usr/include/bits/unistd.h:44
#2  g_wakeup_acknowledge (wakeup=0x7f669c0025a0) at gwakeup.c:210
#3  0x00007f66bc3718b4 in g_main_context_check (context=context@entry=0x7f6694000990, max_priority=2147483647, fds=fds@entry=0x7f6694002e70, n_fds=n_fds@entry=1) at gmain.c:3600
#4  0x00007f66bc371d60 in g_main_context_iterate (context=context@entry=0x7f6694000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3805
#5  0x00007f66bc371ecc in g_main_context_iteration (context=0x7f6694000990, may_block=1) at gmain.c:3869
#6  0x00007f66c1ffcb8b in QEventDispatcherGlib::processEvents (this=0x7f66940008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#7  0x00007f66c1fa2eba in QEventLoop::exec (this=this@entry=0x7f669ad8bca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#8  0x00007f66c1dc0f54 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#9  0x00007f66c604a955 in QQmlThreadPrivate::run() () from /lib64/libQt5Qml.so.5
#10 0x00007f66c1dc5e3e in QThreadPrivate::start (arg=0x1f3f150) at thread/qthread_unix.cpp:337
#11 0x00007f66bfc5c555 in start_thread (arg=0x7f669ad8c700) at pthread_create.c:333
#12 0x00007f66c11c6f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 28 (Thread 0x7f6698a8d700 (LWP 13632)):
#0  g_mutex_unlock (mutex=0x7f6690000990) at gthread-posix.c:1348
#1  0x00007f66bc3717f9 in g_main_context_check (context=context@entry=0x7f6690000990, max_priority=2147483647, fds=fds@entry=0x7f6690003070, n_fds=n_fds@entry=1) at gmain.c:3647
#2  0x00007f66bc371d60 in g_main_context_iterate (context=context@entry=0x7f6690000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3805
#3  0x00007f66bc371ecc in g_main_context_iteration (context=0x7f6690000990, may_block=1) at gmain.c:3869
#4  0x00007f66c1ffcb8b in QEventDispatcherGlib::processEvents (this=0x7f66900008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f66c1fa2eba in QEventLoop::exec (this=this@entry=0x7f6698a8cca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f66c1dc0f54 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f66c604a955 in QQmlThreadPrivate::run() () from /lib64/libQt5Qml.so.5
#8  0x00007f66c1dc5e3e in QThreadPrivate::start (arg=0x20627b0) at thread/qthread_unix.cpp:337
#9  0x00007f66bfc5c555 in start_thread (arg=0x7f6698a8d700) at pthread_create.c:333
#10 0x00007f66c11c6f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 27 (Thread 0x7f668b7ff700 (LWP 13633)):
#0  g_mutex_unlock (mutex=0x7f6684000990) at gthread-posix.c:1348
#1  0x00007f66bc3717f9 in g_main_context_check (context=context@entry=0x7f6684000990, max_priority=2147483647, fds=fds@entry=0x7f6684002e70, n_fds=n_fds@entry=1) at gmain.c:3647
#2  0x00007f66bc371d60 in g_main_context_iterate (context=context@entry=0x7f6684000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3805
#3  0x00007f66bc371ecc in g_main_context_iteration (context=0x7f6684000990, may_block=1) at gmain.c:3869
#4  0x00007f66c1ffcb8b in QEventDispatcherGlib::processEvents (this=0x7f66840008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f66c1fa2eba in QEventLoop::exec (this=this@entry=0x7f668b7feca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f66c1dc0f54 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f66c604a955 in QQmlThreadPrivate::run() () from /lib64/libQt5Qml.so.5
#8  0x00007f66c1dc5e3e in QThreadPrivate::start (arg=0x15826b0) at thread/qthread_unix.cpp:337
#9  0x00007f66bfc5c555 in start_thread (arg=0x7f668b7ff700) at pthread_create.c:333
#10 0x00007f66c11c6f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 26 (Thread 0x7f668a7fe700 (LWP 13634)):
#0  0x00007f66c11b72ed in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f66bc3b5b00 in read (__nbytes=16, __buf=0x7f668a7fdaa0, __fd=<optimized out>) at /usr/include/bits/unistd.h:44
#2  g_wakeup_acknowledge (wakeup=0x7f6684002360) at gwakeup.c:210
#3  0x00007f66bc3718b4 in g_main_context_check (context=context@entry=0x7f667c000990, max_priority=2147483647, fds=fds@entry=0x7f667c003270, n_fds=n_fds@entry=1) at gmain.c:3600
#4  0x00007f66bc371d60 in g_main_context_iterate (context=context@entry=0x7f667c000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3805
#5  0x00007f66bc371ecc in g_main_context_iteration (context=0x7f667c000990, may_block=1) at gmain.c:3869
#6  0x00007f66c1ffcb8b in QEventDispatcherGlib::processEvents (this=0x7f667c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#7  0x00007f66c1fa2eba in QEventLoop::exec (this=this@entry=0x7f668a7fdca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#8  0x00007f66c1dc0f54 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#9  0x00007f66c604a955 in QQmlThreadPrivate::run() () from /lib64/libQt5Qml.so.5
#10 0x00007f66c1dc5e3e in QThreadPrivate::start (arg=0x225a000) at thread/qthread_unix.cpp:337
#11 0x00007f66bfc5c555 in start_thread (arg=0x7f668a7fe700) at pthread_create.c:333
#12 0x00007f66c11c6f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 25 (Thread 0x7f668979d700 (LWP 13635)):
#0  0x00007f66bc3b6ec9 in g_mutex_lock (mutex=mutex@entry=0x7f6680000990) at gthread-posix.c:1336
#1  0x00007f66bc371237 in g_main_context_prepare (context=context@entry=0x7f6680000990, priority=priority@entry=0x7f668979cb70) at gmain.c:3350
#2  0x00007f66bc371ceb in g_main_context_iterate (context=context@entry=0x7f6680000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3788
#3  0x00007f66bc371ecc in g_main_context_iteration (context=0x7f6680000990, may_block=1) at gmain.c:3869
#4  0x00007f66c1ffcb8b in QEventDispatcherGlib::processEvents (this=0x7f66800008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f66c1fa2eba in QEventLoop::exec (this=this@entry=0x7f668979cca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f66c1dc0f54 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f66c604a955 in QQmlThreadPrivate::run() () from /lib64/libQt5Qml.so.5
#8  0x00007f66c1dc5e3e in QThreadPrivate::start (arg=0x2386080) at thread/qthread_unix.cpp:337
#9  0x00007f66bfc5c555 in start_thread (arg=0x7f668979d700) at pthread_create.c:333
#10 0x00007f66c11c6f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 24 (Thread 0x7f667bfff700 (LWP 13636)):
#0  g_mutex_unlock (mutex=0x7f6674000990) at gthread-posix.c:1348
#1  0x00007f66bc371350 in g_main_context_prepare (context=context@entry=0x7f6674000990, priority=priority@entry=0x7f667bffeb70) at gmain.c:3408
#2  0x00007f66bc371ceb in g_main_context_iterate (context=context@entry=0x7f6674000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3788
#3  0x00007f66bc371ecc in g_main_context_iteration (context=0x7f6674000990, may_block=1) at gmain.c:3869
#4  0x00007f66c1ffcb8b in QEventDispatcherGlib::processEvents (this=0x7f66740008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f66c1fa2eba in QEventLoop::exec (this=this@entry=0x7f667bffeca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f66c1dc0f54 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f66c604a955 in QQmlThreadPrivate::run() () from /lib64/libQt5Qml.so.5
#8  0x00007f66c1dc5e3e in QThreadPrivate::start (arg=0x243c340) at thread/qthread_unix.cpp:337
#9  0x00007f66bfc5c555 in start_thread (arg=0x7f667bfff700) at pthread_create.c:333
#10 0x00007f66c11c6f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 23 (Thread 0x7f667adde700 (LWP 13637)):
#0  g_main_context_check (context=context@entry=0x7f666c000990, max_priority=2147483647, fds=fds@entry=0x7f666c003270, n_fds=n_fds@entry=1) at gmain.c:3643
#1  0x00007f66bc371d60 in g_main_context_iterate (context=context@entry=0x7f666c000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3805
#2  0x00007f66bc371ecc in g_main_context_iteration (context=0x7f666c000990, may_block=1) at gmain.c:3869
#3  0x00007f66c1ffcb8b in QEventDispatcherGlib::processEvents (this=0x7f666c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f66c1fa2eba in QEventLoop::exec (this=this@entry=0x7f667adddca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f66c1dc0f54 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f66c604a955 in QQmlThreadPrivate::run() () from /lib64/libQt5Qml.so.5
#7  0x00007f66c1dc5e3e in QThreadPrivate::start (arg=0x2537df0) at thread/qthread_unix.cpp:337
#8  0x00007f66bfc5c555 in start_thread (arg=0x7f667adde700) at pthread_create.c:333
#9  0x00007f66c11c6f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 22 (Thread 0x7f6679bd5700 (LWP 13638)):
#0  __libc_disable_asynccancel () at ../sysdeps/unix/sysv/linux/x86_64/cancellation.S:98
#1  0x00007f66c11bb679 in poll () at ../sysdeps/unix/syscall-template.S:81
#2  0x00007f66bc371dbc in g_main_context_poll (priority=2147483647, n_fds=1, fds=0x7f6670003070, timeout=<optimized out>, context=0x7f6670000990) at gmain.c:4103
#3  g_main_context_iterate (context=context@entry=0x7f6670000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3803
#4  0x00007f66bc371ecc in g_main_context_iteration (context=0x7f6670000990, may_block=1) at gmain.c:3869
#5  0x00007f66c1ffcb8b in QEventDispatcherGlib::processEvents (this=0x7f66700008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#6  0x00007f66c1fa2eba in QEventLoop::exec (this=this@entry=0x7f6679bd4ca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#7  0x00007f66c1dc0f54 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#8  0x00007f66c604a955 in QQmlThreadPrivate::run() () from /lib64/libQt5Qml.so.5
#9  0x00007f66c1dc5e3e in QThreadPrivate::start (arg=0x26791c0) at thread/qthread_unix.cpp:337
#10 0x00007f66bfc5c555 in start_thread (arg=0x7f6679bd5700) at pthread_create.c:333
#11 0x00007f66c11c6f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 21 (Thread 0x7f6678b44700 (LWP 13639)):
#0  0x00007f66c1ffc3c3 in postEventSourceCheck (source=0x7f6664002700) at kernel/qeventdispatcher_glib.cpp:263
#1  0x00007f66bc371801 in g_main_context_check (context=context@entry=0x7f6664000990, max_priority=2147483647, fds=fds@entry=0x7f66640027d0, n_fds=n_fds@entry=1) at gmain.c:3649
#2  0x00007f66bc371d60 in g_main_context_iterate (context=context@entry=0x7f6664000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3805
#3  0x00007f66bc371ecc in g_main_context_iteration (context=0x7f6664000990, may_block=1) at gmain.c:3869
#4  0x00007f66c1ffcb8b in QEventDispatcherGlib::processEvents (this=0x7f66640008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f66c1fa2eba in QEventLoop::exec (this=this@entry=0x7f6678b43ca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f66c1dc0f54 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f66c604a955 in QQmlThreadPrivate::run() () from /lib64/libQt5Qml.so.5
#8  0x00007f66c1dc5e3e in QThreadPrivate::start (arg=0x2770230) at thread/qthread_unix.cpp:337
#9  0x00007f66bfc5c555 in start_thread (arg=0x7f6678b44700) at pthread_create.c:333
#10 0x00007f66c11c6f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 20 (Thread 0x7f666b7ff700 (LWP 13640)):
#0  g_mutex_unlock (mutex=0x7f6660000990) at gthread-posix.c:1348
#1  0x00007f66bc371639 in g_main_context_query (context=context@entry=0x7f6660000990, max_priority=2147483647, timeout=timeout@entry=0x7f666b7feb74, fds=fds@entry=0x7f6660002a70, n_fds=n_fds@entry=1) at gmain.c:3557
#2  0x00007f66bc371d37 in g_main_context_iterate (context=context@entry=0x7f6660000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3790
#3  0x00007f66bc371ecc in g_main_context_iteration (context=0x7f6660000990, may_block=1) at gmain.c:3869
#4  0x00007f66c1ffcb8b in QEventDispatcherGlib::processEvents (this=0x7f66600008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f66c1fa2eba in QEventLoop::exec (this=this@entry=0x7f666b7feca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f66c1dc0f54 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f66c604a955 in QQmlThreadPrivate::run() () from /lib64/libQt5Qml.so.5
#8  0x00007f66c1dc5e3e in QThreadPrivate::start (arg=0x2824e50) at thread/qthread_unix.cpp:337
#9  0x00007f66bfc5c555 in start_thread (arg=0x7f666b7ff700) at pthread_create.c:333
#10 0x00007f66c11c6f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 19 (Thread 0x7f666a7fe700 (LWP 13641)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f66c8a13474 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x7f66c8cfce80 <QTWTF::pageheap_memory>) at /usr/src/debug/qtscript-opensource-src-5.4.2/src/3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2  0x00007f66c8a134b9 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=<optimized out>) at /usr/src/debug/qtscript-opensource-src-5.4.2/src/3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3  0x00007f66bfc5c555 in start_thread (arg=0x7f666a7fe700) at pthread_create.c:333
#4  0x00007f66c11c6f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 18 (Thread 0x7f6669ffd700 (LWP 13642)):
#0  g_source_iter_next (iter=iter@entry=0x7f6669ffcaf0, source=source@entry=0x7f6669ffcae8) at gmain.c:907
#1  0x00007f66bc3712fb in g_main_context_prepare (context=context@entry=0x7f65d8000990, priority=priority@entry=0x7f6669ffcb70) at gmain.c:3388
#2  0x00007f66bc371ceb in g_main_context_iterate (context=context@entry=0x7f65d8000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3788
#3  0x00007f66bc371ecc in g_main_context_iteration (context=0x7f65d8000990, may_block=1) at gmain.c:3869
#4  0x00007f66c1ffcb8b in QEventDispatcherGlib::processEvents (this=0x7f65d80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f66c1fa2eba in QEventLoop::exec (this=this@entry=0x7f6669ffcca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f66c1dc0f54 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f66c604a955 in QQmlThreadPrivate::run() () from /lib64/libQt5Qml.so.5
#8  0x00007f66c1dc5e3e in QThreadPrivate::start (arg=0x291eb30) at thread/qthread_unix.cpp:337
#9  0x00007f66bfc5c555 in start_thread (arg=0x7f6669ffd700) at pthread_create.c:333
#10 0x00007f66c11c6f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 17 (Thread 0x7f65df3a0700 (LWP 13643)):
#0  0x00007f66c11b72ed in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f66bc3b5b00 in read (__nbytes=16, __buf=0x7f65df39faa0, __fd=<optimized out>) at /usr/include/bits/unistd.h:44
#2  g_wakeup_acknowledge (wakeup=0x7f65d80027b0) at gwakeup.c:210
#3  0x00007f66bc3718b4 in g_main_context_check (context=context@entry=0x7f65d4000990, max_priority=2147483647, fds=fds@entry=0x7f65d4003270, n_fds=n_fds@entry=1) at gmain.c:3600
#4  0x00007f66bc371d60 in g_main_context_iterate (context=context@entry=0x7f65d4000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3805
#5  0x00007f66bc371ecc in g_main_context_iteration (context=0x7f65d4000990, may_block=1) at gmain.c:3869
#6  0x00007f66c1ffcb8b in QEventDispatcherGlib::processEvents (this=0x7f65d40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#7  0x00007f66c1fa2eba in QEventLoop::exec (this=this@entry=0x7f65df39fca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#8  0x00007f66c1dc0f54 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#9  0x00007f66c604a955 in QQmlThreadPrivate::run() () from /lib64/libQt5Qml.so.5
#10 0x00007f66c1dc5e3e in QThreadPrivate::start (arg=0x2a7fce0) at thread/qthread_unix.cpp:337
#11 0x00007f66bfc5c555 in start_thread (arg=0x7f65df3a0700) at pthread_create.c:333
#12 0x00007f66c11c6f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 16 (Thread 0x7f65dda22700 (LWP 13644)):
#0  0x00007f66c1ffc3c2 in postEventSourceCheck (source=0x7f65cc0012d0) at kernel/qeventdispatcher_glib.cpp:263
#1  0x00007f66bc371801 in g_main_context_check (context=context@entry=0x7f65cc000990, max_priority=2147483647, fds=fds@entry=0x7f65cc002d30, n_fds=n_fds@entry=1) at gmain.c:3649
#2  0x00007f66bc371d60 in g_main_context_iterate (context=context@entry=0x7f65cc000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3805
#3  0x00007f66bc371ecc in g_main_context_iteration (context=0x7f65cc000990, may_block=1) at gmain.c:3869
#4  0x00007f66c1ffcb8b in QEventDispatcherGlib::processEvents (this=0x7f65cc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f66c1fa2eba in QEventLoop::exec (this=this@entry=0x7f65dda21c50, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f66c1dc0f54 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f66c66b9b06 in QQuickPixmapReader::run() () from /lib64/libQt5Quick.so.5
#8  0x00007f66c1dc5e3e in QThreadPrivate::start (arg=0x2c5cb10) at thread/qthread_unix.cpp:337
#9  0x00007f66bfc5c555 in start_thread (arg=0x7f65dda22700) at pthread_create.c:333
#10 0x00007f66c11c6f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 15 (Thread 0x7f65dd221700 (LWP 13645)):
#0  0x00007f66bc371854 in g_main_context_check (context=context@entry=0x7f65d0000990, max_priority=2147483647, fds=fds@entry=0x7f65d0003070, n_fds=n_fds@entry=1) at gmain.c:3665
#1  0x00007f66bc371d60 in g_main_context_iterate (context=context@entry=0x7f65d0000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3805
#2  0x00007f66bc371ecc in g_main_context_iteration (context=0x7f65d0000990, may_block=1) at gmain.c:3869
#3  0x00007f66c1ffcb8b in QEventDispatcherGlib::processEvents (this=0x7f65d00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f66c1fa2eba in QEventLoop::exec (this=this@entry=0x7f65dd220ca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f66c1dc0f54 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f66c604a955 in QQmlThreadPrivate::run() () from /lib64/libQt5Qml.so.5
#7  0x00007f66c1dc5e3e in QThreadPrivate::start (arg=0x2c63690) at thread/qthread_unix.cpp:337
#8  0x00007f66bfc5c555 in start_thread (arg=0x7f65dd221700) at pthread_create.c:333
#9  0x00007f66c11c6f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 14 (Thread 0x7f65caca0700 (LWP 13647)):
#0  __libc_enable_asynccancel () at ../sysdeps/unix/sysv/linux/x86_64/cancellation.S:65
#1  0x00007f66c11bb662 in poll () at ../sysdeps/unix/syscall-template.S:81
#2  0x00007f66bc371dbc in g_main_context_poll (priority=2147483647, n_fds=1, fds=0x7f65c4003270, timeout=<optimized out>, context=0x7f65c4000990) at gmain.c:4103
#3  g_main_context_iterate (context=context@entry=0x7f65c4000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3803
#4  0x00007f66bc371ecc in g_main_context_iteration (context=0x7f65c4000990, may_block=1) at gmain.c:3869
#5  0x00007f66c1ffcb8b in QEventDispatcherGlib::processEvents (this=0x7f65c40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#6  0x00007f66c1fa2eba in QEventLoop::exec (this=this@entry=0x7f65cac9fca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#7  0x00007f66c1dc0f54 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#8  0x00007f66c604a955 in QQmlThreadPrivate::run() () from /lib64/libQt5Qml.so.5
#9  0x00007f66c1dc5e3e in QThreadPrivate::start (arg=0x2e9b730) at thread/qthread_unix.cpp:337
#10 0x00007f66bfc5c555 in start_thread (arg=0x7f65caca0700) at pthread_create.c:333
#11 0x00007f66c11c6f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 13 (Thread 0x7f65c9c1f700 (LWP 13648)):
#0  0x00007f66c11bb66d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f66bc371dbc in g_main_context_poll (priority=2147483647, n_fds=1, fds=0x7f65bc002d30, timeout=<optimized out>, context=0x7f65bc000990) at gmain.c:4103
#2  g_main_context_iterate (context=context@entry=0x7f65bc000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3803
#3  0x00007f66bc371ecc in g_main_context_iteration (context=0x7f65bc000990, may_block=1) at gmain.c:3869
#4  0x00007f66c1ffcb8b in QEventDispatcherGlib::processEvents (this=0x7f65bc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f66c1fa2eba in QEventLoop::exec (this=this@entry=0x7f65c9c1ec50, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f66c1dc0f54 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f66c66b9b06 in QQuickPixmapReader::run() () from /lib64/libQt5Quick.so.5
#8  0x00007f66c1dc5e3e in QThreadPrivate::start (arg=0x2fcc960) at thread/qthread_unix.cpp:337
#9  0x00007f66bfc5c555 in start_thread (arg=0x7f65c9c1f700) at pthread_create.c:333
#10 0x00007f66c11c6f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 12 (Thread 0x7f65c3c87700 (LWP 13649)):
#0  0x00007f66bc3b6ec9 in g_mutex_lock (mutex=mutex@entry=0x7f65b8000990) at gthread-posix.c:1336
#1  0x00007f66bc37180c in g_main_context_check (context=context@entry=0x7f65b8000990, max_priority=2147483647, fds=fds@entry=0x7f65b8003270, n_fds=n_fds@entry=1) at gmain.c:3651
#2  0x00007f66bc371d60 in g_main_context_iterate (context=context@entry=0x7f65b8000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3805
#3  0x00007f66bc371ecc in g_main_context_iteration (context=0x7f65b8000990, may_block=1) at gmain.c:3869
#4  0x00007f66c1ffcb8b in QEventDispatcherGlib::processEvents (this=0x7f65b80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f66c1fa2eba in QEventLoop::exec (this=this@entry=0x7f65c3c86ca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f66c1dc0f54 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f66c604a955 in QQmlThreadPrivate::run() () from /lib64/libQt5Qml.so.5
#8  0x00007f66c1dc5e3e in QThreadPrivate::start (arg=0x48c8aa0) at thread/qthread_unix.cpp:337
#9  0x00007f66bfc5c555 in start_thread (arg=0x7f65c3c87700) at pthread_create.c:333
#10 0x00007f66c11c6f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 11 (Thread 0x7f65b7fff700 (LWP 13653)):
#0  0x00007f66c11bb66d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f66bc371dbc in g_main_context_poll (priority=2147483647, n_fds=1, fds=0x7f65b0003270, timeout=<optimized out>, context=0x7f65b0000990) at gmain.c:4103
#2  g_main_context_iterate (context=context@entry=0x7f65b0000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3803
#3  0x00007f66bc371ecc in g_main_context_iteration (context=0x7f65b0000990, may_block=1) at gmain.c:3869
#4  0x00007f66c1ffcb8b in QEventDispatcherGlib::processEvents (this=0x7f65b00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f66c1fa2eba in QEventLoop::exec (this=this@entry=0x7f65b7ffeca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f66c1dc0f54 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f66c604a955 in QQmlThreadPrivate::run() () from /lib64/libQt5Qml.so.5
#8  0x00007f66c1dc5e3e in QThreadPrivate::start (arg=0x4d06110) at thread/qthread_unix.cpp:337
#9  0x00007f66bfc5c555 in start_thread (arg=0x7f65b7fff700) at pthread_create.c:333
#10 0x00007f66c11c6f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7f65b6ffe700 (LWP 13654)):
#0  g_mutex_unlock (mutex=0x7f65a8000990) at gthread-posix.c:1348
#1  0x00007f66bc371d76 in g_main_context_iterate (context=context@entry=0x7f65a8000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3810
#2  0x00007f66bc371ecc in g_main_context_iteration (context=0x7f65a8000990, may_block=1) at gmain.c:3869
#3  0x00007f66c1ffcb8b in QEventDispatcherGlib::processEvents (this=0x7f65a80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f66c1fa2eba in QEventLoop::exec (this=this@entry=0x7f65b6ffdca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f66c1dc0f54 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f66c604a955 in QQmlThreadPrivate::run() () from /lib64/libQt5Qml.so.5
#7  0x00007f66c1dc5e3e in QThreadPrivate::start (arg=0x4e1b950) at thread/qthread_unix.cpp:337
#8  0x00007f66bfc5c555 in start_thread (arg=0x7f65b6ffe700) at pthread_create.c:333
#9  0x00007f66c11c6f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7f65b5d96700 (LWP 13655)):
#0  0x00007f66bc3b6ec9 in g_mutex_lock (mutex=mutex@entry=0x7f65ac000990) at gthread-posix.c:1336
#1  0x00007f66bc37167e in g_main_context_check (context=context@entry=0x7f65ac000990, max_priority=2147483647, fds=fds@entry=0x7f65ac002e70, n_fds=n_fds@entry=1) at gmain.c:3589
#2  0x00007f66bc371d60 in g_main_context_iterate (context=context@entry=0x7f65ac000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3805
#3  0x00007f66bc371ecc in g_main_context_iteration (context=0x7f65ac000990, may_block=1) at gmain.c:3869
#4  0x00007f66c1ffcb8b in QEventDispatcherGlib::processEvents (this=0x7f65ac0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f66c1fa2eba in QEventLoop::exec (this=this@entry=0x7f65b5d95ca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f66c1dc0f54 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f66c604a955 in QQmlThreadPrivate::run() () from /lib64/libQt5Qml.so.5
#8  0x00007f66c1dc5e3e in QThreadPrivate::start (arg=0x4f31b90) at thread/qthread_unix.cpp:337
#9  0x00007f66bfc5c555 in start_thread (arg=0x7f65b5d96700) at pthread_create.c:333
#10 0x00007f66c11c6f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7f65b4c95700 (LWP 13656)):
#0  0x00007f66c1dbe48f in testAndSetRelaxed<QMutexData*> (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=0x1, _q_value=@0x5008f28: 0x0) at ../../src/corelib/arch/qatomic_x86.h:259
#1  testAndSetRelease<QMutexData*, QMutexData*> (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=<optimized out>, _q_value=@0x5008f28: 0x0) at ../../src/corelib/thread/qgenericatomic.h:175
#2  testAndSetRelease (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=<optimized out>, this=this@entry=0x5008f28) at ../../src/corelib/thread/qbasicatomic.h:272
#3  fastTryUnlock (current=<synthetic pointer>, this=this@entry=0x5008f28) at thread/qmutex.h:85
#4  QMutex::unlock (this=this@entry=0x5008f28) at thread/qmutex.cpp:264
#5  0x00007f66c1ffc3f5 in unlock (this=<synthetic pointer>) at ../../src/corelib/thread/qmutex.h:138
#6  ~QMutexLocker (this=<synthetic pointer>, __in_chrg=<optimized out>) at ../../src/corelib/thread/qmutex.h:132
#7  canWaitLocked (this=<optimized out>) at ../../src/corelib/thread/qthread_p.h:243
#8  postEventSourcePrepare (timeout=<synthetic pointer>, s=0x7f65a00012d0) at kernel/qeventdispatcher_glib.cpp:254
#9  postEventSourceCheck (source=0x7f65a00012d0) at kernel/qeventdispatcher_glib.cpp:264
#10 0x00007f66bc371801 in g_main_context_check (context=context@entry=0x7f65a0000990, max_priority=2147483647, fds=fds@entry=0x7f65a0003270, n_fds=n_fds@entry=1) at gmain.c:3649
#11 0x00007f66bc371d60 in g_main_context_iterate (context=context@entry=0x7f65a0000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3805
#12 0x00007f66bc371ecc in g_main_context_iteration (context=0x7f65a0000990, may_block=1) at gmain.c:3869
#13 0x00007f66c1ffcb8b in QEventDispatcherGlib::processEvents (this=0x7f65a00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#14 0x00007f66c1fa2eba in QEventLoop::exec (this=this@entry=0x7f65b4c94ca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#15 0x00007f66c1dc0f54 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#16 0x00007f66c604a955 in QQmlThreadPrivate::run() () from /lib64/libQt5Qml.so.5
#17 0x00007f66c1dc5e3e in QThreadPrivate::start (arg=0x50053a0) at thread/qthread_unix.cpp:337
#18 0x00007f66bfc5c555 in start_thread (arg=0x7f65b4c95700) at pthread_create.c:333
#19 0x00007f66c11c6f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7f65a77ff700 (LWP 13657)):
#0  __GI___tls_get_addr (ti=0x7f66c23d96d0) at dl-tls.c:828
#1  0x00007f66c1dc4d82 in get_thread_data () at thread/qthread_unix.cpp:181
#2  QThreadData::current (createIfNecessary=createIfNecessary@entry=true) at thread/qthread_unix.cpp:212
#3  0x00007f66c1ffc0ea in postEventSourcePrepare (s=0x7f659c002500, timeout=timeout@entry=0x7f65a77feae4) at kernel/qeventdispatcher_glib.cpp:247
#4  0x00007f66bc37135d in g_main_context_prepare (context=context@entry=0x7f659c000990, priority=priority@entry=0x7f65a77feb70) at gmain.c:3410
#5  0x00007f66bc371ceb in g_main_context_iterate (context=context@entry=0x7f659c000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3788
#6  0x00007f66bc371ecc in g_main_context_iteration (context=0x7f659c000990, may_block=1) at gmain.c:3869
#7  0x00007f66c1ffcb8b in QEventDispatcherGlib::processEvents (this=0x7f659c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#8  0x00007f66c1fa2eba in QEventLoop::exec (this=this@entry=0x7f65a77feca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#9  0x00007f66c1dc0f54 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#10 0x00007f66c604a955 in QQmlThreadPrivate::run() () from /lib64/libQt5Qml.so.5
#11 0x00007f66c1dc5e3e in QThreadPrivate::start (arg=0x50f41f0) at thread/qthread_unix.cpp:337
#12 0x00007f66bfc5c555 in start_thread (arg=0x7f65a77ff700) at pthread_create.c:333
#13 0x00007f66c11c6f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f659b22e700 (LWP 13709)):
#0  0x00007f66bc370dd4 in g_main_context_acquire (context=<optimized out>) at gmain.c:3199
#1  0x00007f66bc371c75 in g_main_context_iterate (context=context@entry=0x7f6594000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3758
#2  0x00007f66bc371ecc in g_main_context_iteration (context=0x7f6594000990, may_block=1) at gmain.c:3869
#3  0x00007f66c1ffcb8b in QEventDispatcherGlib::processEvents (this=0x7f65940008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f66c1fa2eba in QEventLoop::exec (this=this@entry=0x7f659b22dc80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f66c1dc0f54 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f65a4f4b397 in KCupsConnection::run() () from /lib64/libkcupslib.so
#7  0x00007f66c1dc5e3e in QThreadPrivate::start (arg=0x5584c80) at thread/qthread_unix.cpp:337
#8  0x00007f66bfc5c555 in start_thread (arg=0x7f659b22e700) at pthread_create.c:333
#9  0x00007f66c11c6f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f659a412700 (LWP 13744)):
#0  g_source_iter_next (iter=iter@entry=0x7f659a411af0, source=source@entry=0x7f659a411ae8) at gmain.c:923
#1  0x00007f66bc37172a in g_main_context_check (context=context@entry=0x7f658c000990, max_priority=2147483647, fds=fds@entry=0x7f658c003070, n_fds=n_fds@entry=1) at gmain.c:3629
#2  0x00007f66bc371d60 in g_main_context_iterate (context=context@entry=0x7f658c000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3805
#3  0x00007f66bc371ecc in g_main_context_iteration (context=0x7f658c000990, may_block=1) at gmain.c:3869
#4  0x00007f66c1ffcb8b in QEventDispatcherGlib::processEvents (this=0x7f658c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f66c1fa2eba in QEventLoop::exec (this=this@entry=0x7f659a411ca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f66c1dc0f54 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f66c604a955 in QQmlThreadPrivate::run() () from /lib64/libQt5Qml.so.5
#8  0x00007f66c1dc5e3e in QThreadPrivate::start (arg=0x4892090) at thread/qthread_unix.cpp:337
#9  0x00007f66bfc5c555 in start_thread (arg=0x7f659a412700) at pthread_create.c:333
#10 0x00007f66c11c6f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f659930f700 (LWP 13753)):
#0  0x00007f66c11bb66d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f66bc371dbc in g_main_context_poll (priority=2147483647, n_fds=1, fds=0x7f6590003270, timeout=<optimized out>, context=0x7f6590000990) at gmain.c:4103
#2  g_main_context_iterate (context=context@entry=0x7f6590000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3803
#3  0x00007f66bc371ecc in g_main_context_iteration (context=0x7f6590000990, may_block=1) at gmain.c:3869
#4  0x00007f66c1ffcb8b in QEventDispatcherGlib::processEvents (this=0x7f65900008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f66c1fa2eba in QEventLoop::exec (this=this@entry=0x7f659930eca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f66c1dc0f54 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f66c604a955 in QQmlThreadPrivate::run() () from /lib64/libQt5Qml.so.5
#8  0x00007f66c1dc5e3e in QThreadPrivate::start (arg=0x59309e0) at thread/qthread_unix.cpp:337
#9  0x00007f66bfc5c555 in start_thread (arg=0x7f659930f700) at pthread_create.c:333
#10 0x00007f66c11c6f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f658bfff700 (LWP 13760)):
#0  0x00007f66c11b72ed in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f66bc3b5b00 in read (__nbytes=16, __buf=0x7f658bffeaa0, __fd=<optimized out>) at /usr/include/bits/unistd.h:44
#2  g_wakeup_acknowledge (wakeup=0x7f65900027a0) at gwakeup.c:210
#3  0x00007f66bc3718b4 in g_main_context_check (context=context@entry=0x7f6584000990, max_priority=2147483647, fds=fds@entry=0x7f6584002e70, n_fds=n_fds@entry=1) at gmain.c:3600
#4  0x00007f66bc371d60 in g_main_context_iterate (context=context@entry=0x7f6584000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3805
#5  0x00007f66bc371ecc in g_main_context_iteration (context=0x7f6584000990, may_block=1) at gmain.c:3869
#6  0x00007f66c1ffcb8b in QEventDispatcherGlib::processEvents (this=0x7f65840008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#7  0x00007f66c1fa2eba in QEventLoop::exec (this=this@entry=0x7f658bffeca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#8  0x00007f66c1dc0f54 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#9  0x00007f66c604a955 in QQmlThreadPrivate::run() () from /lib64/libQt5Qml.so.5
#10 0x00007f66c1dc5e3e in QThreadPrivate::start (arg=0x4b08220) at thread/qthread_unix.cpp:337
#11 0x00007f66bfc5c555 in start_thread (arg=0x7f658bfff700) at pthread_create.c:333
#12 0x00007f66c11c6f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f658affe700 (LWP 13765)):
#0  g_mutex_unlock (mutex=0x7f657c000990) at gthread-posix.c:1348
#1  0x00007f66bc371cde in g_main_context_iterate (context=context@entry=0x7f657c000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3786
#2  0x00007f66bc371ecc in g_main_context_iteration (context=0x7f657c000990, may_block=1) at gmain.c:3869
#3  0x00007f66c1ffcb8b in QEventDispatcherGlib::processEvents (this=0x7f657c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f66c1fa2eba in QEventLoop::exec (this=this@entry=0x7f658affdca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f66c1dc0f54 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f66c604a955 in QQmlThreadPrivate::run() () from /lib64/libQt5Qml.so.5
#7  0x00007f66c1dc5e3e in QThreadPrivate::start (arg=0x5ad9cf0) at thread/qthread_unix.cpp:337
#8  0x00007f66bfc5c555 in start_thread (arg=0x7f658affe700) at pthread_create.c:333
#9  0x00007f66c11c6f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f66c92f8900 (LWP 13603)):
[KCrash Handler]
#6  0x00007f66c10f9a98 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:55
#7  0x00007f66c10fb72a in __GI_abort () at abort.c:89
#8  0x00007f66c1db3808 in qt_message_fatal (context=..., message=...) at global/qlogging.cpp:1422
#9  QMessageLogger::fatal (this=this@entry=0x7ffd7f58d870, msg=msg@entry=0x7f66c2d833b8 "Cannot construct placeholder type QDBusRawType") at global/qlogging.cpp:643
#10 0x00007f66c2d5cab2 in QDBusRawTypeHandler::construct () at qdbusmetaobject.cpp:144
#11 0x00007f66c1fe7ad8 in construct (copy=0x0, where=0x7ffd7f58d990, this=0x7ffd7f58d8d0) at ../../src/corelib/kernel/qmetatype.h:2018
#12 (anonymous namespace)::customConstruct (d=0x7ffd7f58d990, copy=0x0) at kernel/qvariant.cpp:865
#13 0x00007f66c1fe7fdf in QVariant::QVariant (this=0x7ffd7f58d990, typeId=<optimized out>, copy=<optimized out>) at kernel/qvariant.cpp:1498
#14 0x00007f66c1fb203f in QMetaProperty::read (this=this@entry=0x7ffd7f58da30, object=object@entry=0x60b0b90) at kernel/qmetaobject.cpp:2861
#15 0x00007f66c1fd4c1f in QObject::property (this=0x60b0b90, name=0x47b6688 "MountPoints") at kernel/qobject.cpp:3897
#16 0x00007f66c862a876 in Solid::Backends::UDisks2::DeviceBackend::propertyExists(QString const&) const () from /lib64/libKF5Solid.so.5
#17 0x00007f66c86232f1 in Solid::Backends::UDisks2::Device::isMounted() const () from /lib64/libKF5Solid.so.5
#18 0x00007f66c8642119 in Solid::Backends::UDisks2::StorageAccess::StorageAccess(Solid::Backends::UDisks2::Device*) () from /lib64/libKF5Solid.so.5
#19 0x00007f66c8623a86 in Solid::Backends::UDisks2::Device::emblems() const () from /lib64/libKF5Solid.so.5
#20 0x00007f66c85d774d in Solid::Device::emblems() const () from /lib64/libKF5Solid.so.5
#21 0x00007f65a639ad03 in HotplugEngine::onDeviceAdded(Solid::Device&, bool) () from /usr/lib64/qt5/plugins/plasma/dataengine/plasma_engine_hotplug.so
#22 0x00007f65a639cba1 in HotplugEngine::onDeviceAdded(QString const&) () from /usr/lib64/qt5/plugins/plasma/dataengine/plasma_engine_hotplug.so
#23 0x00007f66c1fd607a in QMetaObject::activate (sender=0x5209f00, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3717
#24 0x00007f66c85d9022 in Solid::DeviceNotifier::deviceAdded(QString const&) () from /lib64/libKF5Solid.so.5
#25 0x00007f66c1fd607a in QMetaObject::activate (sender=0x5202de0, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3717
#26 0x00007f66c864ec52 in Solid::Ifaces::DeviceManager::deviceAdded(QString const&) () from /lib64/libKF5Solid.so.5
#27 0x00007f66c8617545 in Solid::Backends::UDisks2::Manager::slotInterfacesAdded(QDBusObjectPath const&, QMap<QString, QMap<QString, QVariant> > const&) () from /lib64/libKF5Solid.so.5
#28 0x00007f66c8652a8d in Solid::Backends::UDisks2::Manager::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) () from /lib64/libKF5Solid.so.5
#29 0x00007f66c1fd607a in QMetaObject::activate (sender=0x5202df8, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3717
#30 0x00007f66c8652d4c in OrgFreedesktopDBusObjectManagerInterface::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) () from /lib64/libKF5Solid.so.5
#31 0x00007f66c8657c05 in OrgFreedesktopDBusObjectManagerInterface::qt_metacall(QMetaObject::Call, int, void**) () from /lib64/libKF5Solid.so.5
#32 0x00007f66c2d3938e in QDBusConnectionPrivate::deliverCall (this=0x51f4000, object=0x5202df8, msg=..., metaTypes=..., slotIdx=6) at qdbusintegrator.cpp:992
#33 0x00007f66c1fd6f41 in QObject::event (this=0x5202df8, e=<optimized out>) at kernel/qobject.cpp:1245
#34 0x00007f66c35377ec in QApplicationPrivate::notify_helper (this=this@entry=0x1532e90, receiver=receiver@entry=0x5202df8, e=e@entry=0x5fed200) at kernel/qapplication.cpp:3720
#35 0x00007f66c353ce90 in QApplication::notify (this=0x7ffd7f58ebe0, receiver=0x5202df8, e=0x5fed200) at kernel/qapplication.cpp:3503
#36 0x00007f66c1fa567b in QCoreApplication::notifyInternal (this=0x7ffd7f58ebe0, receiver=0x5202df8, event=event@entry=0x5fed200) at kernel/qcoreapplication.cpp:935
#37 0x00007f66c1fa77b7 in sendEvent (event=0x5fed200, receiver=<optimized out>) at kernel/qcoreapplication.h:228
#38 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x1528b20) at kernel/qcoreapplication.cpp:1552
#39 0x00007f66c1fa7ce8 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1410
#40 0x00007f66c1ffc763 in postEventSourceDispatch (s=0x1573620) at kernel/qeventdispatcher_glib.cpp:271
#41 0x00007f66bc371a8a in g_main_dispatch (context=0x7f66a40016f0) at gmain.c:3122
#42 g_main_context_dispatch (context=context@entry=0x7f66a40016f0) at gmain.c:3737
#43 0x00007f66bc371e20 in g_main_context_iterate (context=context@entry=0x7f66a40016f0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3808
#44 0x00007f66bc371ecc in g_main_context_iteration (context=0x7f66a40016f0, may_block=1) at gmain.c:3869
#45 0x00007f66c1ffcb6f in QEventDispatcherGlib::processEvents (this=0x1573600, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#46 0x00007f66c1fa2eba in QEventLoop::exec (this=this@entry=0x7ffd7f58ea60, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#47 0x00007f66c1faaa2c in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1188
#48 0x000000000042ebaf in main ()

Possible duplicates by query: bug 347641, bug 347126, bug 346818, bug 346555, bug 346106.

Reported using DrKonqi
Comment 1 David Edmundson 2015-06-18 15:29:53 UTC 

*** This bug has been marked as a duplicate of bug 343971 ***