Bug 347592

Summary: Plasma crash in wallpaper background finder
Product: [Plasma] plasmashell Reporter: Peter Andreasen <noesgaard>
Component: Image & Slideshow wallpaper pluginsAssignee: Marco Martin <notmart>
Status: RESOLVED FIXED    
Severity: crash CC: bshah, kde, mklapetek, notmart, plasma-bugs-null
Priority: NOR Keywords: drkonqi
Version First Reported In: 5.3.0   
Target Milestone: 1.0   
Platform: Fedora RPMs   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description Peter Andreasen 2015-05-12 10:31:50 UTC 
Application: plasmashell (5.3.0)

Qt Version: 5.4.1
Operating System: Linux 4.0.2-300.fc22.x86_64 x86_64
Distribution: "Fedora release 22 (Twenty Two)"

-- Information about the crash:
- What I was doing when the application crashed:
Log on to Fedora22, open browser window or any other window.

- Unusual behavior I noticed:
Plasma crashed. When it automatically restarts, scroll wheel no longer works in browser.
Also, after first crash, it restarts and crashes several times.

-- Backtrace:
Application: Plasma (plasmashell), signal: Aborted
Using host libthread_db library "/lib64/libthread_db.so.1".
pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
185	62:	movl	(%rsp), %edi
[Current thread is 1 (Thread 0x7fee89d87900 (LWP 1917))]

Thread 46 (Thread 0x7fee827ac700 (LWP 1919)):
#0  0x0000003adf6f666d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x0000003ae2a0a182 in _xcb_conn_wait (__timeout=-1, __nfds=1, __fds=0x7fee827abbc0) at /usr/include/bits/poll2.h:46
#2  0x0000003ae2a0a182 in _xcb_conn_wait (c=c@entry=0x23fb5b0, cond=cond@entry=0x23fb5f0, vector=vector@entry=0x0, count=count@entry=0x0) at xcb_conn.c:459
#3  0x0000003ae2a0bcff in xcb_wait_for_event (c=0x23fb5b0) at xcb_in.c:623
#4  0x00007fee834415e9 in QXcbEventReader::run() (this=0x2409af0) at qxcbconnection.cpp:1108
#5  0x00000039b5c9fede in QThreadPrivate::start(void*) (arg=0x2409af0) at thread/qthread_unix.cpp:337
#6  0x0000003ae0207555 in start_thread (arg=0x7fee827ac700) at pthread_create.c:333
#7  0x0000003adf701f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 45 (Thread 0x7fee7bfff700 (LWP 1923)):
#0  0x0000003adf6f22f1 in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x0000003adf28dd90 in g_wakeup_acknowledge () at /lib64/libglib-2.0.so.0
#2  0x0000003adf249ee4 in g_main_context_check () at /lib64/libglib-2.0.so.0
#3  0x0000003adf24a390 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#4  0x0000003adf24a4fc in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#5  0x00000039b5ed675b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fee740008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#6  0x00000039b5e7ca8a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fee7bffeca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#7  0x00000039b5c9aff4 in QThread::exec() (this=this@entry=0x24e6ac0) at thread/qthread.cpp:503
#8  0x00000039c34c3935 in QQmlThreadPrivate::run() (this=0x24e6ac0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.1/src/qml/qml/ftw/qqmlthread.cpp:141
#9  0x00000039b5c9fede in QThreadPrivate::start(void*) (arg=0x24e6ac0) at thread/qthread_unix.cpp:337
#10 0x0000003ae0207555 in start_thread (arg=0x7fee7bfff700) at pthread_create.c:333
#11 0x0000003adf701f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 44 (Thread 0x7fee71332700 (LWP 1958)):
#0  0x0000003adf28f1f9 in g_mutex_lock () at /lib64/libglib-2.0.so.0
#1  0x0000003adf249e3c in g_main_context_check () at /lib64/libglib-2.0.so.0
#2  0x0000003adf24a390 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#3  0x0000003adf24a4fc in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#4  0x00000039b5ed675b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fee6c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00000039b5e7ca8a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fee71331ca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00000039b5c9aff4 in QThread::exec() (this=this@entry=0x275f640) at thread/qthread.cpp:503
#7  0x00000039c34c3935 in QQmlThreadPrivate::run() (this=0x275f640) at /usr/src/debug/qtdeclarative-opensource-src-5.4.1/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00000039b5c9fede in QThreadPrivate::start(void*) (arg=0x275f640) at thread/qthread_unix.cpp:337
#9  0x0000003ae0207555 in start_thread (arg=0x7fee71332700) at pthread_create.c:333
#10 0x0000003adf701f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 43 (Thread 0x7fee6afab700 (LWP 2049)):
#0  0x0000003adf6f666d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x0000003adf24a3ec in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x0000003adf24a4fc in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00000039b5ed675b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fee5c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00000039b5e7ca8a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fee6afaaca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00000039b5c9aff4 in QThread::exec() (this=this@entry=0x2856b90) at thread/qthread.cpp:503
#6  0x00000039c34c3935 in QQmlThreadPrivate::run() (this=0x2856b90) at /usr/src/debug/qtdeclarative-opensource-src-5.4.1/src/qml/qml/ftw/qqmlthread.cpp:141
#7  0x00000039b5c9fede in QThreadPrivate::start(void*) (arg=0x2856b90) at thread/qthread_unix.cpp:337
#8  0x0000003ae0207555 in start_thread (arg=0x7fee6afab700) at pthread_create.c:333
#9  0x0000003adf701f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 42 (Thread 0x7fee69faa700 (LWP 2053)):
#0  0x0000003adf28f214 in g_mutex_unlock () at /lib64/libglib-2.0.so.0
#1  0x0000003adf24a30e in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x0000003adf24a4fc in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00000039b5ed675b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fee600008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00000039b5e7ca8a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fee69fa9ca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00000039b5c9aff4 in QThread::exec() (this=this@entry=0x2953b10) at thread/qthread.cpp:503
#6  0x00000039c34c3935 in QQmlThreadPrivate::run() (this=0x2953b10) at /usr/src/debug/qtdeclarative-opensource-src-5.4.1/src/qml/qml/ftw/qqmlthread.cpp:141
#7  0x00000039b5c9fede in QThreadPrivate::start(void*) (arg=0x2953b10) at thread/qthread_unix.cpp:337
#8  0x0000003ae0207555 in start_thread (arg=0x7fee69faa700) at pthread_create.c:333
#9  0x0000003adf701f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 41 (Thread 0x7fee68f99700 (LWP 2054)):
#0  0x0000003adf6f666d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x0000003adf24a3ec in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x0000003adf24a4fc in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00000039b5ed675b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fee540008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00000039b5e7ca8a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fee68f98ca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00000039b5c9aff4 in QThread::exec() (this=this@entry=0x2a80e30) at thread/qthread.cpp:503
#6  0x00000039c34c3935 in QQmlThreadPrivate::run() (this=0x2a80e30) at /usr/src/debug/qtdeclarative-opensource-src-5.4.1/src/qml/qml/ftw/qqmlthread.cpp:141
#7  0x00000039b5c9fede in QThreadPrivate::start(void*) (arg=0x2a80e30) at thread/qthread_unix.cpp:337
#8  0x0000003ae0207555 in start_thread (arg=0x7fee68f99700) at pthread_create.c:333
#9  0x0000003adf701f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 40 (Thread 0x7fee5b7ff700 (LWP 2055)):
#0  0x0000003adf6f666d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x0000003adf24a3ec in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x0000003adf24a4fc in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00000039b5ed675b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fee500008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00000039b5e7ca8a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fee5b7feca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00000039b5c9aff4 in QThread::exec() (this=this@entry=0x2b417c0) at thread/qthread.cpp:503
#6  0x00000039c34c3935 in QQmlThreadPrivate::run() (this=0x2b417c0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.1/src/qml/qml/ftw/qqmlthread.cpp:141
#7  0x00000039b5c9fede in QThreadPrivate::start(void*) (arg=0x2b417c0) at thread/qthread_unix.cpp:337
#8  0x0000003ae0207555 in start_thread (arg=0x7fee5b7ff700) at pthread_create.c:333
#9  0x0000003adf701f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 39 (Thread 0x7fee5a7fe700 (LWP 2056)):
#0  0x0000003adf6f666d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x0000003adf24a3ec in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x0000003adf24a4fc in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00000039b5ed675b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fee480008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00000039b5e7ca8a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fee5a7fdca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00000039b5c9aff4 in QThread::exec() (this=this@entry=0x2c66db0) at thread/qthread.cpp:503
#6  0x00000039c34c3935 in QQmlThreadPrivate::run() (this=0x2c66db0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.1/src/qml/qml/ftw/qqmlthread.cpp:141
#7  0x00000039b5c9fede in QThreadPrivate::start(void*) (arg=0x2c66db0) at thread/qthread_unix.cpp:337
#8  0x0000003ae0207555 in start_thread (arg=0x7fee5a7fe700) at pthread_create.c:333
#9  0x0000003adf701f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 38 (Thread 0x7fee597fd700 (LWP 2057)):
#0  0x0000003adf6f22ed in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x0000003adf28dd90 in g_wakeup_acknowledge () at /lib64/libglib-2.0.so.0
#2  0x0000003adf249ee4 in g_main_context_check () at /lib64/libglib-2.0.so.0
#3  0x0000003adf24a390 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#4  0x0000003adf24a4fc in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#5  0x00000039b5ed675b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fee4c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#6  0x00000039b5e7ca8a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fee597fcca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#7  0x00000039b5c9aff4 in QThread::exec() (this=this@entry=0x2d51ff0) at thread/qthread.cpp:503
#8  0x00000039c34c3935 in QQmlThreadPrivate::run() (this=0x2d51ff0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.1/src/qml/qml/ftw/qqmlthread.cpp:141
#9  0x00000039b5c9fede in QThreadPrivate::start(void*) (arg=0x2d51ff0) at thread/qthread_unix.cpp:337
#10 0x0000003ae0207555 in start_thread (arg=0x7fee597fd700) at pthread_create.c:333
#11 0x0000003adf701f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 37 (Thread 0x7fee47fff700 (LWP 2058)):
#0  0x0000003adf6f666d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x0000003adf24a3ec in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x0000003adf24a4fc in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00000039b5ed675b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fee400008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00000039b5e7ca8a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fee47ffeca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00000039b5c9aff4 in QThread::exec() (this=this@entry=0x2e4ca30) at thread/qthread.cpp:503
#6  0x00000039c34c3935 in QQmlThreadPrivate::run() (this=0x2e4ca30) at /usr/src/debug/qtdeclarative-opensource-src-5.4.1/src/qml/qml/ftw/qqmlthread.cpp:141
#7  0x00000039b5c9fede in QThreadPrivate::start(void*) (arg=0x2e4ca30) at thread/qthread_unix.cpp:337
#8  0x0000003ae0207555 in start_thread (arg=0x7fee47fff700) at pthread_create.c:333
#9  0x0000003adf701f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 36 (Thread 0x7fee46ffe700 (LWP 2063)):
#0  0x00000039b5c9852f in QMutex::unlock() (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=0x1, _q_value=@0x2f1db18: 0x0) at ../../src/corelib/arch/qatomic_x86.h:259
#1  0x00000039b5c9852f in QMutex::unlock() (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=<optimized out>, _q_value=@0x2f1db18: 0x0) at ../../src/corelib/thread/qgenericatomic.h:175
#2  0x00000039b5c9852f in QMutex::unlock() (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=<optimized out>, this=this@entry=0x2f1db18) at ../../src/corelib/thread/qbasicatomic.h:272
#3  0x00000039b5c9852f in QMutex::unlock() (current=<synthetic pointer>, this=this@entry=0x2f1db18) at thread/qmutex.h:85
#4  0x00000039b5c9852f in QMutex::unlock() (this=this@entry=0x2f1db18) at thread/qmutex.cpp:264
#5  0x00000039b5ed5fc5 in postEventSourceCheck(GSource*) (this=<synthetic pointer>) at ../../src/corelib/thread/qmutex.h:138
#6  0x00000039b5ed5fc5 in postEventSourceCheck(GSource*) (this=<synthetic pointer>, __in_chrg=<optimized out>) at ../../src/corelib/thread/qmutex.h:132
#7  0x00000039b5ed5fc5 in postEventSourceCheck(GSource*) (this=<optimized out>) at ../../src/corelib/thread/qthread_p.h:243
#8  0x00000039b5ed5fc5 in postEventSourceCheck(GSource*) (timeout=<synthetic pointer>, s=0x7fee38002700) at kernel/qeventdispatcher_glib.cpp:254
#9  0x00000039b5ed5fc5 in postEventSourceCheck(GSource*) (source=0x7fee38002700) at kernel/qeventdispatcher_glib.cpp:264
#10 0x0000003adf249e31 in g_main_context_check () at /lib64/libglib-2.0.so.0
#11 0x0000003adf24a390 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#12 0x0000003adf24a4fc in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#13 0x00000039b5ed675b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fee380008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#14 0x00000039b5e7ca8a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fee46ffdca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#15 0x00000039b5c9aff4 in QThread::exec() (this=this@entry=0x2f0f0e0) at thread/qthread.cpp:503
#16 0x00000039c34c3935 in QQmlThreadPrivate::run() (this=0x2f0f0e0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.1/src/qml/qml/ftw/qqmlthread.cpp:141
#17 0x00000039b5c9fede in QThreadPrivate::start(void*) (arg=0x2f0f0e0) at thread/qthread_unix.cpp:337
#18 0x0000003ae0207555 in start_thread (arg=0x7fee46ffe700) at pthread_create.c:333
#19 0x0000003adf701f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 35 (Thread 0x7fee45ffd700 (LWP 2064)):
#0  0x0000003adf6f666d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x0000003adf24a3ec in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x0000003adf24a4fc in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00000039b5ed675b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fee3c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00000039b5e7ca8a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fee45ffcca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00000039b5c9aff4 in QThread::exec() (this=this@entry=0x3013240) at thread/qthread.cpp:503
#6  0x00000039c34c3935 in QQmlThreadPrivate::run() (this=0x3013240) at /usr/src/debug/qtdeclarative-opensource-src-5.4.1/src/qml/qml/ftw/qqmlthread.cpp:141
#7  0x00000039b5c9fede in QThreadPrivate::start(void*) (arg=0x3013240) at thread/qthread_unix.cpp:337
#8  0x0000003ae0207555 in start_thread (arg=0x7fee45ffd700) at pthread_create.c:333
#9  0x0000003adf701f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 34 (Thread 0x7fee44ffc700 (LWP 2065)):
#0  0x0000003adf28f1f9 in g_mutex_lock () at /lib64/libglib-2.0.so.0
#1  0x0000003adf249999 in g_main_context_prepare () at /lib64/libglib-2.0.so.0
#2  0x0000003adf24a31b in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#3  0x0000003adf24a4fc in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#4  0x00000039b5ed675b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fee300008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00000039b5e7ca8a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fee44ffbca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00000039b5c9aff4 in QThread::exec() (this=this@entry=0x310d360) at thread/qthread.cpp:503
#7  0x00000039c34c3935 in QQmlThreadPrivate::run() (this=0x310d360) at /usr/src/debug/qtdeclarative-opensource-src-5.4.1/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00000039b5c9fede in QThreadPrivate::start(void*) (arg=0x310d360) at thread/qthread_unix.cpp:337
#9  0x0000003ae0207555 in start_thread (arg=0x7fee44ffc700) at pthread_create.c:333
#10 0x0000003adf701f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 33 (Thread 0x7fee377ff700 (LWP 2066)):
#0  0x0000003adf249f69 in g_main_context_dispatch () at /lib64/libglib-2.0.so.0
#1  0x0000003adf24a450 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x0000003adf24a4fc in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00000039b5ed675b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fee2c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00000039b5e7ca8a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fee377feca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00000039b5c9aff4 in QThread::exec() (this=this@entry=0x32326a0) at thread/qthread.cpp:503
#6  0x00000039c34c3935 in QQmlThreadPrivate::run() (this=0x32326a0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.1/src/qml/qml/ftw/qqmlthread.cpp:141
#7  0x00000039b5c9fede in QThreadPrivate::start(void*) (arg=0x32326a0) at thread/qthread_unix.cpp:337
#8  0x0000003ae0207555 in start_thread (arg=0x7fee377ff700) at pthread_create.c:333
#9  0x0000003adf701f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 32 (Thread 0x7fee367fe700 (LWP 2067)):
#0  0x0000003adf6f22ed in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x0000003adf28dd90 in g_wakeup_acknowledge () at /lib64/libglib-2.0.so.0
#2  0x0000003adf249ee4 in g_main_context_check () at /lib64/libglib-2.0.so.0
#3  0x0000003adf24a390 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#4  0x0000003adf24a4fc in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#5  0x00000039b5ed675b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fee240008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#6  0x00000039b5e7ca8a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fee367fdca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#7  0x00000039b5c9aff4 in QThread::exec() (this=this@entry=0x32fc970) at thread/qthread.cpp:503
#8  0x00000039c34c3935 in QQmlThreadPrivate::run() (this=0x32fc970) at /usr/src/debug/qtdeclarative-opensource-src-5.4.1/src/qml/qml/ftw/qqmlthread.cpp:141
#9  0x00000039b5c9fede in QThreadPrivate::start(void*) (arg=0x32fc970) at thread/qthread_unix.cpp:337
#10 0x0000003ae0207555 in start_thread (arg=0x7fee367fe700) at pthread_create.c:333
#11 0x0000003adf701f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 31 (Thread 0x7fee357fd700 (LWP 2068)):
#0  0x0000003adf70fa30 in __libc_disable_asynccancel () at ../sysdeps/unix/sysv/linux/x86_64/cancellation.S:90
#1  0x0000003adf6f22f9 in read () at ../sysdeps/unix/syscall-template.S:81
#2  0x0000003adf28dd90 in g_wakeup_acknowledge () at /lib64/libglib-2.0.so.0
#3  0x0000003adf249ee4 in g_main_context_check () at /lib64/libglib-2.0.so.0
#4  0x0000003adf24a390 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#5  0x0000003adf24a4fc in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#6  0x00000039b5ed675b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fee280008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#7  0x00000039b5e7ca8a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fee357fcca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#8  0x00000039b5c9aff4 in QThread::exec() (this=this@entry=0x33e36c0) at thread/qthread.cpp:503
#9  0x00000039c34c3935 in QQmlThreadPrivate::run() (this=0x33e36c0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.1/src/qml/qml/ftw/qqmlthread.cpp:141
#10 0x00000039b5c9fede in QThreadPrivate::start(void*) (arg=0x33e36c0) at thread/qthread_unix.cpp:337
#11 0x0000003ae0207555 in start_thread (arg=0x7fee357fd700) at pthread_create.c:333
#12 0x0000003adf701f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 30 (Thread 0x7fee23fff700 (LWP 2069)):
#0  0x0000003ae020c530 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00000039c47806d4 in QTWTF::TCMalloc_PageHeap::scavengerThread() (this=0x39c4a68e80) at /usr/src/debug/qtscript-opensource-src-5.4.1/src/3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2  0x00000039c4780719 in QTWTF::TCMalloc_PageHeap::runScavengerThread(void*) (context=<optimized out>) at /usr/src/debug/qtscript-opensource-src-5.4.1/src/3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3  0x0000003ae0207555 in start_thread (arg=0x7fee23fff700) at pthread_create.c:333
#4  0x0000003adf701f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 29 (Thread 0x7feda37fe700 (LWP 2072)):
#0  0x0000003adf6f22ed in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x0000003adf28dd90 in g_wakeup_acknowledge () at /lib64/libglib-2.0.so.0
#2  0x0000003adf249ee4 in g_main_context_check () at /lib64/libglib-2.0.so.0
#3  0x0000003adf24a390 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#4  0x0000003adf24a4fc in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#5  0x00000039b5ed675b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fed9c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#6  0x00000039b5e7ca8a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7feda37fdca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#7  0x00000039b5c9aff4 in QThread::exec() (this=this@entry=0x34db970) at thread/qthread.cpp:503
#8  0x00000039c34c3935 in QQmlThreadPrivate::run() (this=0x34db970) at /usr/src/debug/qtdeclarative-opensource-src-5.4.1/src/qml/qml/ftw/qqmlthread.cpp:141
#9  0x00000039b5c9fede in QThreadPrivate::start(void*) (arg=0x34db970) at thread/qthread_unix.cpp:337
#10 0x0000003ae0207555 in start_thread (arg=0x7feda37fe700) at pthread_create.c:333
#11 0x0000003adf701f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 28 (Thread 0x7feda13c0700 (LWP 2136)):
#0  0x0000003adf28f212 in g_mutex_unlock () at /lib64/libglib-2.0.so.0
#1  0x0000003adf2493fe in g_main_context_acquire () at /lib64/libglib-2.0.so.0
#2  0x0000003adf24a2a5 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#3  0x0000003adf24a4fc in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#4  0x00000039b5ed675b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fed940008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00000039b5e7ca8a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7feda13bfca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00000039b5c9aff4 in QThread::exec() (this=this@entry=0x3718e40) at thread/qthread.cpp:503
#7  0x00000039c34c3935 in QQmlThreadPrivate::run() (this=0x3718e40) at /usr/src/debug/qtdeclarative-opensource-src-5.4.1/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00000039b5c9fede in QThreadPrivate::start(void*) (arg=0x3718e40) at thread/qthread_unix.cpp:337
#9  0x0000003ae0207555 in start_thread (arg=0x7feda13c0700) at pthread_create.c:333
#10 0x0000003adf701f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 27 (Thread 0x7fed9b941700 (LWP 2141)):
#0  0x0000003adf28f1f9 in g_mutex_lock () at /lib64/libglib-2.0.so.0
#1  0x0000003adf249e3c in g_main_context_check () at /lib64/libglib-2.0.so.0
#2  0x0000003adf24a390 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#3  0x0000003adf24a4fc in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#4  0x00000039b5ed675b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fed900008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00000039b5e7ca8a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fed9b940ca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00000039b5c9aff4 in QThread::exec() (this=this@entry=0x3889010) at thread/qthread.cpp:503
#7  0x00000039c34c3935 in QQmlThreadPrivate::run() (this=0x3889010) at /usr/src/debug/qtdeclarative-opensource-src-5.4.1/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00000039b5c9fede in QThreadPrivate::start(void*) (arg=0x3889010) at thread/qthread_unix.cpp:337
#9  0x0000003ae0207555 in start_thread (arg=0x7fed9b941700) at pthread_create.c:333
#10 0x0000003adf701f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 26 (Thread 0x7fed99811700 (LWP 2159)):
#0  0x0000003adf6f666d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x0000003adf24a3ec in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x0000003adf24a4fc in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00000039b5ed675b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fed880008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00000039b5e7ca8a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fed99810ca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00000039b5c9aff4 in QThread::exec() (this=this@entry=0x3ba08b0) at thread/qthread.cpp:503
#6  0x00000039c34c3935 in QQmlThreadPrivate::run() (this=0x3ba08b0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.1/src/qml/qml/ftw/qqmlthread.cpp:141
#7  0x00000039b5c9fede in QThreadPrivate::start(void*) (arg=0x3ba08b0) at thread/qthread_unix.cpp:337
#8  0x0000003ae0207555 in start_thread (arg=0x7fed99811700) at pthread_create.c:333
#9  0x0000003adf701f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 25 (Thread 0x7fed8ffff700 (LWP 2160)):
#0  0x0000003adf28f1f9 in g_mutex_lock () at /lib64/libglib-2.0.so.0
#1  0x0000003adf249e3c in g_main_context_check () at /lib64/libglib-2.0.so.0
#2  0x0000003adf24a390 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#3  0x0000003adf24a4fc in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#4  0x00000039b5ed675b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fed840008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00000039b5e7ca8a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fed8fffec50, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00000039b5c9aff4 in QThread::exec() (this=this@entry=0x3cc4900) at thread/qthread.cpp:503
#7  0x00000039c1ef6ab6 in QQuickPixmapReader::run() (this=0x3cc4900) at /usr/src/debug/qtdeclarative-opensource-src-5.4.1/src/quick/util/qquickpixmapcache.cpp:712
#8  0x00000039b5c9fede in QThreadPrivate::start(void*) (arg=0x3cc4900) at thread/qthread_unix.cpp:337
#9  0x0000003ae0207555 in start_thread (arg=0x7fed8ffff700) at pthread_create.c:333
#10 0x0000003adf701f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 24 (Thread 0x7fed8f7fe700 (LWP 2161)):
#0  0x0000003adf70fa52 in __libc_disable_asynccancel () at ../sysdeps/unix/sysv/linux/x86_64/cancellation.S:98
#1  0x0000003adf6f6679 in poll () at ../sysdeps/unix/syscall-template.S:81
#2  0x0000003adf24a3ec in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#3  0x0000003adf24a4fc in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#4  0x00000039b5ed675b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fed7c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00000039b5e7ca8a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fed8f7fdc50, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00000039b5c9aff4 in QThread::exec() (this=this@entry=0x39ab3d0) at thread/qthread.cpp:503
#7  0x00000039c1ef6ab6 in QQuickPixmapReader::run() (this=0x39ab3d0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.1/src/quick/util/qquickpixmapcache.cpp:712
#8  0x00000039b5c9fede in QThreadPrivate::start(void*) (arg=0x39ab3d0) at thread/qthread_unix.cpp:337
#9  0x0000003ae0207555 in start_thread (arg=0x7fed8f7fe700) at pthread_create.c:333
#10 0x0000003adf701f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 23 (Thread 0x7fed8d80d700 (LWP 2165)):
#0  0x00007ffc3055a92c in  ()
#1  0x00007ffc3055acc1 in clock_gettime ()
#2  0x0000003adf71013d in __GI___clock_gettime (clock_id=<optimized out>, tp=<optimized out>) at ../sysdeps/unix/clock_gettime.c:115
#3  0x00000039b5d50f86 in qt_gettime() (ts=0x7fed8d80ca10, clock=<optimized out>) at tools/qelapsedtimer_unix.cpp:105
#4  0x00000039b5d50f86 in qt_gettime() (frac=<synthetic pointer>, sec=<synthetic pointer>) at tools/qelapsedtimer_unix.cpp:161
#5  0x00000039b5d50f86 in qt_gettime() () at tools/qelapsedtimer_unix.cpp:170
#6  0x00000039b5ed41e9 in QTimerInfoList::updateCurrentTime() (this=this@entry=0x7fed740013a0) at kernel/qtimerinfo_unix.cpp:84
#7  0x00000039b5ed4755 in QTimerInfoList::timerWait(timespec&) (this=0x7fed740013a0, tm=...) at kernel/qtimerinfo_unix.cpp:379
#8  0x00000039b5ed5b3e in timerSourcePrepare(GSource*, gint*) (timeout=0x7fed8d80cae4, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:127
#9  0x00000039b5ed5b3e in timerSourcePrepare(GSource*, gint*) (source=<optimized out>, timeout=0x7fed8d80cae4) at kernel/qeventdispatcher_glib.cpp:160
#10 0x0000003adf24998d in g_main_context_prepare () at /lib64/libglib-2.0.so.0
#11 0x0000003adf24a31b in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#12 0x0000003adf24a4fc in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#13 0x00000039b5ed675b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fed740008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#14 0x00000039b5e7ca8a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fed8d80cca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#15 0x00000039b5c9aff4 in QThread::exec() (this=this@entry=0x42ebda0) at thread/qthread.cpp:503
#16 0x00000039c34c3935 in QQmlThreadPrivate::run() (this=0x42ebda0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.1/src/qml/qml/ftw/qqmlthread.cpp:141
#17 0x00000039b5c9fede in QThreadPrivate::start(void*) (arg=0x42ebda0) at thread/qthread_unix.cpp:337
#18 0x0000003ae0207555 in start_thread (arg=0x7fed8d80d700) at pthread_create.c:333
#19 0x0000003adf701f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 22 (Thread 0x7fed8e00e700 (LWP 2177)):
#0  0x0000003adf28f1f9 in g_mutex_lock () at /lib64/libglib-2.0.so.0
#1  0x0000003adf249f86 in g_main_context_dispatch () at /lib64/libglib-2.0.so.0
#2  0x0000003adf24a450 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#3  0x0000003adf24a4fc in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#4  0x00000039b5ed675b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fed80005aa0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00000039b5e7ca8a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fed8e00dca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00000039b5c9aff4 in QThread::exec() (this=this@entry=0x47d7350) at thread/qthread.cpp:503
#7  0x00000039c34c3935 in QQmlThreadPrivate::run() (this=0x47d7350) at /usr/src/debug/qtdeclarative-opensource-src-5.4.1/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00000039b5c9fede in QThreadPrivate::start(void*) (arg=0x47d7350) at thread/qthread_unix.cpp:337
#9  0x0000003ae0207555 in start_thread (arg=0x7fed8e00e700) at pthread_create.c:333
#10 0x0000003adf701f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 21 (Thread 0x7fed79f3c700 (LWP 2178)):
#0  0x0000003adf28f1f9 in g_mutex_lock () at /lib64/libglib-2.0.so.0
#1  0x0000003adf249e3c in g_main_context_check () at /lib64/libglib-2.0.so.0
#2  0x0000003adf24a390 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#3  0x0000003adf24a4fc in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#4  0x00000039b5ed675b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fed700008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00000039b5e7ca8a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fed79f3bca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00000039b5c9aff4 in QThread::exec() (this=this@entry=0x489a6f0) at thread/qthread.cpp:503
#7  0x00000039c34c3935 in QQmlThreadPrivate::run() (this=0x489a6f0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.1/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00000039b5c9fede in QThreadPrivate::start(void*) (arg=0x489a6f0) at thread/qthread_unix.cpp:337
#9  0x0000003ae0207555 in start_thread (arg=0x7fed79f3c700) at pthread_create.c:333
#10 0x0000003adf701f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 20 (Thread 0x7fed78e39700 (LWP 2179)):
#0  0x0000003adf6f22ed in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x0000003adf28dd90 in g_wakeup_acknowledge () at /lib64/libglib-2.0.so.0
#2  0x0000003adf249ee4 in g_main_context_check () at /lib64/libglib-2.0.so.0
#3  0x0000003adf24a390 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#4  0x0000003adf24a4fc in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#5  0x00000039b5ed675b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fed680008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#6  0x00000039b5e7ca8a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fed78e38ca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#7  0x00000039b5c9aff4 in QThread::exec() (this=this@entry=0x498a160) at thread/qthread.cpp:503
#8  0x00000039c34c3935 in QQmlThreadPrivate::run() (this=0x498a160) at /usr/src/debug/qtdeclarative-opensource-src-5.4.1/src/qml/qml/ftw/qqmlthread.cpp:141
#9  0x00000039b5c9fede in QThreadPrivate::start(void*) (arg=0x498a160) at thread/qthread_unix.cpp:337
#10 0x0000003ae0207555 in start_thread (arg=0x7fed78e39700) at pthread_create.c:333
#11 0x0000003adf701f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 19 (Thread 0x7fed6f7ff700 (LWP 2180)):
#0  0x0000003adf6f666d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x0000003adf24a3ec in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x0000003adf24a4fc in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00000039b5ed675b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fed640008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00000039b5e7ca8a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fed6f7feca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00000039b5c9aff4 in QThread::exec() (this=this@entry=0x4a74620) at thread/qthread.cpp:503
#6  0x00000039c34c3935 in QQmlThreadPrivate::run() (this=0x4a74620) at /usr/src/debug/qtdeclarative-opensource-src-5.4.1/src/qml/qml/ftw/qqmlthread.cpp:141
#7  0x00000039b5c9fede in QThreadPrivate::start(void*) (arg=0x4a74620) at thread/qthread_unix.cpp:337
#8  0x0000003ae0207555 in start_thread (arg=0x7fed6f7ff700) at pthread_create.c:333
#9  0x0000003adf701f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 18 (Thread 0x7fed6e7fe700 (LWP 2181)):
#0  0x0000003adf28f214 in g_mutex_unlock () at /lib64/libglib-2.0.so.0
#1  0x0000003adf249e29 in g_main_context_check () at /lib64/libglib-2.0.so.0
#2  0x0000003adf24a390 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#3  0x0000003adf24a4fc in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#4  0x00000039b5ed675b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fed5c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00000039b5e7ca8a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fed6e7fdca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00000039b5c9aff4 in QThread::exec() (this=this@entry=0x4b97a40) at thread/qthread.cpp:503
#7  0x00000039c34c3935 in QQmlThreadPrivate::run() (this=0x4b97a40) at /usr/src/debug/qtdeclarative-opensource-src-5.4.1/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00000039b5c9fede in QThreadPrivate::start(void*) (arg=0x4b97a40) at thread/qthread_unix.cpp:337
#9  0x0000003ae0207555 in start_thread (arg=0x7fed6e7fe700) at pthread_create.c:333
#10 0x0000003adf701f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 17 (Thread 0x7fed6d7fd700 (LWP 2182)):
#0  0x0000003adf6f666d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x0000003adf24a3ec in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x0000003adf24a4fc in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00000039b5ed675b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fed600008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00000039b5e7ca8a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fed6d7fcca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00000039b5c9aff4 in QThread::exec() (this=this@entry=0x4c50260) at thread/qthread.cpp:503
#6  0x00000039c34c3935 in QQmlThreadPrivate::run() (this=0x4c50260) at /usr/src/debug/qtdeclarative-opensource-src-5.4.1/src/qml/qml/ftw/qqmlthread.cpp:141
#7  0x00000039b5c9fede in QThreadPrivate::start(void*) (arg=0x4c50260) at thread/qthread_unix.cpp:337
#8  0x0000003ae0207555 in start_thread (arg=0x7fed6d7fd700) at pthread_create.c:333
#9  0x0000003adf701f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 16 (Thread 0x7fed5bfff700 (LWP 2183)):
#0  0x0000003adf6f666d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x0000003adf24a3ec in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x0000003adf24a4fc in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00000039b5ed675b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fed540008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00000039b5e7ca8a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fed5bffeca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00000039b5c9aff4 in QThread::exec() (this=this@entry=0x4d4d170) at thread/qthread.cpp:503
#6  0x00000039c34c3935 in QQmlThreadPrivate::run() (this=0x4d4d170) at /usr/src/debug/qtdeclarative-opensource-src-5.4.1/src/qml/qml/ftw/qqmlthread.cpp:141
#7  0x00000039b5c9fede in QThreadPrivate::start(void*) (arg=0x4d4d170) at thread/qthread_unix.cpp:337
#8  0x0000003ae0207555 in start_thread (arg=0x7fed5bfff700) at pthread_create.c:333
#9  0x0000003adf701f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 15 (Thread 0x7fed5affe700 (LWP 2184)):
#0  0x0000003adf24a3e1 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#1  0x0000003adf24a4fc in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#2  0x00000039b5ed675b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x4e31e90, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#3  0x00000039b5e7ca8a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fed5affdca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#4  0x00000039b5c9aff4 in QThread::exec() (this=this@entry=0x4e2ea80) at thread/qthread.cpp:503
#5  0x00000039c34c3935 in QQmlThreadPrivate::run() (this=0x4e2ea80) at /usr/src/debug/qtdeclarative-opensource-src-5.4.1/src/qml/qml/ftw/qqmlthread.cpp:141
#6  0x00000039b5c9fede in QThreadPrivate::start(void*) (arg=0x4e2ea80) at thread/qthread_unix.cpp:337
#7  0x0000003ae0207555 in start_thread (arg=0x7fed5affe700) at pthread_create.c:333
#8  0x0000003adf701f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 14 (Thread 0x7fed59ffd700 (LWP 2185)):
#0  0x0000003adf28f1f9 in g_mutex_lock () at /lib64/libglib-2.0.so.0
#1  0x0000003adf249e3c in g_main_context_check () at /lib64/libglib-2.0.so.0
#2  0x0000003adf24a390 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#3  0x0000003adf24a4fc in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#4  0x00000039b5ed675b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fed54003320, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00000039b5e7ca8a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fed59ffcca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00000039b5c9aff4 in QThread::exec() (this=this@entry=0x4f5d9c0) at thread/qthread.cpp:503
#7  0x00000039c34c3935 in QQmlThreadPrivate::run() (this=0x4f5d9c0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.1/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00000039b5c9fede in QThreadPrivate::start(void*) (arg=0x4f5d9c0) at thread/qthread_unix.cpp:337
#9  0x0000003ae0207555 in start_thread (arg=0x7fed59ffd700) at pthread_create.c:333
#10 0x0000003adf701f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 13 (Thread 0x7fed58ffc700 (LWP 2186)):
#0  0x0000003adf28f214 in g_mutex_unlock () at /lib64/libglib-2.0.so.0
#1  0x0000003adf24a3e1 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x0000003adf24a4fc in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00000039b5ed675b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fed60002f20, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00000039b5e7ca8a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fed58ffbca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00000039b5c9aff4 in QThread::exec() (this=this@entry=0x5014e10) at thread/qthread.cpp:503
#6  0x00000039c34c3935 in QQmlThreadPrivate::run() (this=0x5014e10) at /usr/src/debug/qtdeclarative-opensource-src-5.4.1/src/qml/qml/ftw/qqmlthread.cpp:141
#7  0x00000039b5c9fede in QThreadPrivate::start(void*) (arg=0x5014e10) at thread/qthread_unix.cpp:337
#8  0x0000003ae0207555 in start_thread (arg=0x7fed58ffc700) at pthread_create.c:333
#9  0x0000003adf701f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 12 (Thread 0x7fed52535700 (LWP 2189)):
#0  0x0000003adf28f1f9 in g_mutex_lock () at /lib64/libglib-2.0.so.0
#1  0x0000003adf249999 in g_main_context_prepare () at /lib64/libglib-2.0.so.0
#2  0x0000003adf24a31b in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#3  0x0000003adf24a4fc in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#4  0x00000039b5ed675b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fed5c002f20, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00000039b5e7ca8a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fed52534c80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00000039b5c9aff4 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007fed52d69397 in KCupsConnection::run() () at /lib64/libkcupslib.so
#8  0x00000039b5c9fede in QThreadPrivate::start(void*) (arg=0x53c7a30) at thread/qthread_unix.cpp:337
#9  0x0000003ae0207555 in start_thread (arg=0x7fed52535700) at pthread_create.c:333
#10 0x0000003adf701f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 11 (Thread 0x7fed50da6700 (LWP 2196)):
#0  0x0000003adf6f666d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x0000003adf24a3ec in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x0000003adf24a4fc in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00000039b5ed675b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fed68008320, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00000039b5e7ca8a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fed50da5ca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00000039b5c9aff4 in QThread::exec() (this=this@entry=0x592cc70) at thread/qthread.cpp:503
#6  0x00000039c34c3935 in QQmlThreadPrivate::run() (this=0x592cc70) at /usr/src/debug/qtdeclarative-opensource-src-5.4.1/src/qml/qml/ftw/qqmlthread.cpp:141
#7  0x00000039b5c9fede in QThreadPrivate::start(void*) (arg=0x592cc70) at thread/qthread_unix.cpp:337
#8  0x0000003ae0207555 in start_thread (arg=0x7fed50da6700) at pthread_create.c:333
#9  0x0000003adf701f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7fed515a7700 (LWP 2197)):
#0  0x0000003adf28f214 in g_mutex_unlock () at /lib64/libglib-2.0.so.0
#1  0x0000003adf249980 in g_main_context_prepare () at /lib64/libglib-2.0.so.0
#2  0x0000003adf24a31b in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#3  0x0000003adf24a4fc in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#4  0x00000039b5ed675b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fed640086e0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00000039b5e7ca8a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fed515a6ca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00000039b5c9aff4 in QThread::exec() (this=this@entry=0x5983e60) at thread/qthread.cpp:503
#7  0x00000039c34c3935 in QQmlThreadPrivate::run() (this=0x5983e60) at /usr/src/debug/qtdeclarative-opensource-src-5.4.1/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00000039b5c9fede in QThreadPrivate::start(void*) (arg=0x5983e60) at thread/qthread_unix.cpp:337
#9  0x0000003ae0207555 in start_thread (arg=0x7fed515a7700) at pthread_create.c:333
#10 0x0000003adf701f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7fed4f335700 (LWP 2198)):
#0  0x0000003adf28f1f9 in g_mutex_lock () at /lib64/libglib-2.0.so.0
#1  0x0000003adf24a2f0 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x0000003adf24a4fc in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00000039b5ed675b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fed7000b170, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00000039b5e7ca8a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fed4f334ca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00000039b5c9aff4 in QThread::exec() (this=this@entry=0x5aaa2e0) at thread/qthread.cpp:503
#6  0x00000039c34c3935 in QQmlThreadPrivate::run() (this=0x5aaa2e0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.1/src/qml/qml/ftw/qqmlthread.cpp:141
#7  0x00000039b5c9fede in QThreadPrivate::start(void*) (arg=0x5aaa2e0) at thread/qthread_unix.cpp:337
#8  0x0000003ae0207555 in start_thread (arg=0x7fed4f335700) at pthread_create.c:333
#9  0x0000003adf701f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7fed4e234700 (LWP 2199)):
#0  0x0000003adf28f214 in g_mutex_unlock () at /lib64/libglib-2.0.so.0
#1  0x0000003adf2493fe in g_main_context_acquire () at /lib64/libglib-2.0.so.0
#2  0x0000003adf24a2a5 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#3  0x0000003adf24a4fc in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#4  0x00000039b5ed675b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fed740082f0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00000039b5e7ca8a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fed4e233ca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00000039b5c9aff4 in QThread::exec() (this=this@entry=0x5b5b6b0) at thread/qthread.cpp:503
#7  0x00000039c34c3935 in QQmlThreadPrivate::run() (this=0x5b5b6b0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.1/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00000039b5c9fede in QThreadPrivate::start(void*) (arg=0x5b5b6b0) at thread/qthread_unix.cpp:337
#9  0x0000003ae0207555 in start_thread (arg=0x7fed4e234700) at pthread_create.c:333
#10 0x0000003adf701f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7fed4d133700 (LWP 2200)):
#0  0x0000003adf6f666d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x0000003adf24a3ec in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x0000003adf24a4fc in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00000039b5ed675b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fed80001230, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00000039b5e7ca8a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fed4d132ca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00000039b5c9aff4 in QThread::exec() (this=this@entry=0x3778c50) at thread/qthread.cpp:503
#6  0x00000039c34c3935 in QQmlThreadPrivate::run() (this=0x3778c50) at /usr/src/debug/qtdeclarative-opensource-src-5.4.1/src/qml/qml/ftw/qqmlthread.cpp:141
#7  0x00000039b5c9fede in QThreadPrivate::start(void*) (arg=0x3778c50) at thread/qthread_unix.cpp:337
#8  0x0000003ae0207555 in start_thread (arg=0x7fed4d133700) at pthread_create.c:333
#9  0x0000003adf701f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7fed4c032700 (LWP 2201)):
#0  0x0000003adf28f214 in g_mutex_unlock () at /lib64/libglib-2.0.so.0
#1  0x0000003adf249980 in g_main_context_prepare () at /lib64/libglib-2.0.so.0
#2  0x0000003adf24a31b in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#3  0x0000003adf24a4fc in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#4  0x00000039b5ed675b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fed7c003160, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00000039b5e7ca8a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fed4c031ca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00000039b5c9aff4 in QThread::exec() (this=this@entry=0x5d53e20) at thread/qthread.cpp:503
#7  0x00000039c34c3935 in QQmlThreadPrivate::run() (this=0x5d53e20) at /usr/src/debug/qtdeclarative-opensource-src-5.4.1/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00000039b5c9fede in QThreadPrivate::start(void*) (arg=0x5d53e20) at thread/qthread_unix.cpp:337
#9  0x0000003ae0207555 in start_thread (arg=0x7fed4c032700) at pthread_create.c:333
#10 0x0000003adf701f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7fed4af31700 (LWP 2202)):
#0  0x00000039b5ed5bc0 in socketNotifierSourceCheck(GSource*) (source=0x7fed84003420) at kernel/qeventdispatcher_glib.cpp:74
#1  0x0000003adf249e31 in g_main_context_check () at /lib64/libglib-2.0.so.0
#2  0x0000003adf24a390 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#3  0x0000003adf24a4fc in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#4  0x00000039b5ed675b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fed84003160, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00000039b5e7ca8a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fed4af30ca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00000039b5c9aff4 in QThread::exec() (this=this@entry=0x5e49270) at thread/qthread.cpp:503
#7  0x00000039c34c3935 in QQmlThreadPrivate::run() (this=0x5e49270) at /usr/src/debug/qtdeclarative-opensource-src-5.4.1/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00000039b5c9fede in QThreadPrivate::start(void*) (arg=0x5e49270) at thread/qthread_unix.cpp:337
#9  0x0000003ae0207555 in start_thread (arg=0x7fed4af31700) at pthread_create.c:333
#10 0x0000003adf701f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7fed49e30700 (LWP 2203)):
#0  0x0000003adf28f1f9 in g_mutex_lock () at /lib64/libglib-2.0.so.0
#1  0x0000003adf249999 in g_main_context_prepare () at /lib64/libglib-2.0.so.0
#2  0x0000003adf24a31b in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#3  0x0000003adf24a4fc in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#4  0x00000039b5ed675b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fed880013e0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00000039b5e7ca8a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fed49e2fca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00000039b5c9aff4 in QThread::exec() (this=this@entry=0x5f339d0) at thread/qthread.cpp:503
#7  0x00000039c34c3935 in QQmlThreadPrivate::run() (this=0x5f339d0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.1/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00000039b5c9fede in QThreadPrivate::start(void*) (arg=0x5f339d0) at thread/qthread_unix.cpp:337
#9  0x0000003ae0207555 in start_thread (arg=0x7fed49e30700) at pthread_create.c:333
#10 0x0000003adf701f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7fed45ca5700 (LWP 5773)):
#0  0x0000003adf6f22ed in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x0000003adf28dd90 in g_wakeup_acknowledge () at /lib64/libglib-2.0.so.0
#2  0x0000003adf249ee4 in g_main_context_check () at /lib64/libglib-2.0.so.0
#3  0x0000003adf24a390 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#4  0x0000003adf24a4fc in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#5  0x00000039b5ed675b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fed9c06c3b0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#6  0x00000039b5e7ca8a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fed45ca4ca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#7  0x00000039b5c9aff4 in QThread::exec() (this=this@entry=0x6af33b0) at thread/qthread.cpp:503
#8  0x00000039c34c3935 in QQmlThreadPrivate::run() (this=0x6af33b0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.1/src/qml/qml/ftw/qqmlthread.cpp:141
#9  0x00000039b5c9fede in QThreadPrivate::start(void*) (arg=0x6af33b0) at thread/qthread_unix.cpp:337
#10 0x0000003ae0207555 in start_thread (arg=0x7fed45ca5700) at pthread_create.c:333
#11 0x0000003adf701f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7fed45484700 (LWP 5899)):
[KCrash Handler]
#6  0x0000003adf634a98 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:55
#7  0x0000003adf63672a in __GI_abort () at abort.c:89
#8  0x0000003adf677ea2 in __libc_message (do_abort=do_abort@entry=2, fmt=fmt@entry=0x3adf789a40 "*** Error in `%s': %s: 0x%s ***\n") at ../sysdeps/posix/libc_fatal.c:175
#9  0x0000003adf680ef8 in _int_malloc (ptr=<optimized out>, str=0x3adf789c10 "malloc(): memory corruption (fast)", action=3) at malloc.c:4976
#10 0x0000003adf680ef8 in _int_malloc (av=av@entry=0x7fed94000020, bytes=bytes@entry=24) at malloc.c:3357
#11 0x0000003adf683b5e in __GI___libc_malloc (bytes=24) at malloc.c:2898
#12 0x00000039b5ca14f3 in QArrayData::allocate(unsigned long, unsigned long, unsigned long, QFlags<QArrayData::AllocationOption>) (objectSize=objectSize@entry=1, alignment=alignment@entry=8, capacity=capacity@entry=0, options=..., options@entry=...) at tools/qarraydata.cpp:93
#13 0x00000039b5ca8244 in QByteArray::fromRawData(char const*, int) (options=..., capacity=0) at ../../src/corelib/tools/qarraydata.h:216
#14 0x00000039b5ca8244 in QByteArray::fromRawData(char const*, int) (options=..., n=7, data=0x39b5fc7388 "QString") at ../../src/corelib/tools/qarraydata.h:229
#15 0x00000039b5ca8244 in QByteArray::fromRawData(char const*, int) (data=0x39b5fc7388 "QString", size=7) at tools/qbytearray.cpp:3931
#16 0x00000039b5e8e5c5 in QMetaMethod::parameterTypes() const (this=this@entry=0x7fed45483ae0) at kernel/qmetaobject.cpp:165
#17 0x00000039b5eafee5 in QMetaObject::activate(QObject*, int, int, void**) (locker=<synthetic pointer>, argv=0x7fed45483b60, c=0x69620b0, signal=5, sender=0x6984b50) at kernel/qobject.cpp:3528
#18 0x00000039b5eafee5 in QMetaObject::activate(QObject*, int, int, void**) (sender=sender@entry=0x6984b50, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fed45483b60) at kernel/qobject.cpp:3669
#19 0x00000039b5eb0447 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) (sender=sender@entry=0x6984b50, m=m@entry=0x7fed9bffeb20 <BackgroundFinder::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fed45483b60) at kernel/qobject.cpp:3582
#20 0x00007fed9bdf6e37 in BackgroundFinder::backgroundsFound(QStringList const&, QString const&) (this=this@entry=0x6984b50, _t1=..., _t2=...) at moc_backgroundlistmodel.cpp:440
#21 0x00007fed9bdf3e13 in BackgroundFinder::run() (this=0x6984b50) at ../../../wallpapers/image/backgroundlistmodel.cpp:551
#22 0x00000039b5c9fede in QThreadPrivate::start(void*) (arg=0x6984b50) at thread/qthread_unix.cpp:337
#23 0x0000003ae0207555 in start_thread (arg=0x7fed45484700) at pthread_create.c:333
#24 0x0000003adf701f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7fee89d87900 (LWP 1917)):
#0  0x0000003ae020c530 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x0000003ae2a0a3d9 in _xcb_conn_wait (c=c@entry=0x23fb5b0, cond=cond@entry=0x7ffc305289f0, vector=vector@entry=0x0, count=count@entry=0x0) at xcb_conn.c:427
#2  0x0000003ae2a0ba8f in wait_for_reply (c=c@entry=0x23fb5b0, request=12181, e=e@entry=0x7ffc30528ac0) at xcb_in.c:491
#3  0x0000003ae2a0bba1 in xcb_wait_for_reply (c=c@entry=0x23fb5b0, request=12181, e=e@entry=0x7ffc30528ac0) at xcb_in.c:521
#4  0x0000003ae2e431f7 in _XReply (dpy=dpy@entry=0x23fa220, rep=rep@entry=0x7ffc30528b10, extra=extra@entry=0, discard=discard@entry=1) at xcb_io.c:602
#5  0x0000003ae3a0a07a in XSyncQueryCounter (dpy=0x23fa220, counter=112, value_return=0x7ffc30528b70) at XSync.c:530
#6  0x00000039c5407154 in XSyncBasedPoller::forcePollRequest() (this=<optimized out>) at ../../src/xsyncbasedpoller.cpp:217
#7  0x00000039c5407154 in XSyncBasedPoller::forcePollRequest() (this=<optimized out>) at ../../src/xsyncbasedpoller.cpp:211
#8  0x00007fed585eb2b2 in PowermanagementEngine::updateSourceEvent(QString const&) (this=0x5183760, source=...) at ../../../dataengines/powermanagement/powermanagementengine.cpp:367
#9  0x00000039c4c5a2a6 in Plasma::DataEnginePrivate::internalUpdateSource(Plasma::DataContainer*) (this=0x5192860, source=0x51c1b60) at ../../../src/plasma/dataengine.cpp:480
#10 0x00000039b5eafc46 in QMetaObject::activate(QObject*, int, int, void**) (sender=0x51c1b60, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=3, argv=argv@entry=0x7ffc30528d40) at kernel/qobject.cpp:3716
#11 0x00000039b5eb0447 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) (sender=<optimized out>, m=m@entry=0x39c4ec1ec0 <Plasma::DataContainer::staticMetaObject>, local_signal_index=local_signal_index@entry=3, argv=argv@entry=0x7ffc30528d40) at kernel/qobject.cpp:3582
#12 0x00000039c4c54c42 in Plasma::DataContainer::updateRequested(Plasma::DataContainer*) (this=<optimized out>, _t1=0x51c1b60) at ./moc_datacontainer.cpp:246
#13 0x00000039c4c634b8 in Plasma::SignalRelay::timerEvent(QTimerEvent*) (this=0x51c22a0, event=<optimized out>) at ../../../src/plasma/private/datacontainer_p.cpp:154
#14 0x00000039b5eb0ac3 in QObject::event(QEvent*) (this=0x51c22a0, e=<optimized out>) at kernel/qobject.cpp:1267
#15 0x00000039b81527cc in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=this@entry=0x23f0260, receiver=receiver@entry=0x51c22a0, e=e@entry=0x7ffc30529080) at kernel/qapplication.cpp:3720
#16 0x00000039b8157e70 in QApplication::notify(QObject*, QEvent*) (this=0x7ffc30529440, receiver=0x51c22a0, e=0x7ffc30529080) at kernel/qapplication.cpp:3503
#17 0x00000039b5e7f24b in QCoreApplication::notifyInternal(QObject*, QEvent*) (this=0x7ffc30529440, receiver=0x51c22a0, event=event@entry=0x7ffc30529080) at kernel/qcoreapplication.cpp:935
#18 0x00000039b5ed555d in QTimerInfoList::activateTimers() (event=0x7ffc30529080, receiver=<optimized out>) at ../../src/corelib/kernel/qcoreapplication.h:228
#19 0x00000039b5ed555d in QTimerInfoList::activateTimers() (this=0x24328c0) at kernel/qtimerinfo_unix.cpp:635
#20 0x00000039b5ed5a61 in timerSourceDispatch(GSource*, GSourceFunc, gpointer) (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:177
#21 0x0000003adf24a0ba in g_main_context_dispatch () at /lib64/libglib-2.0.so.0
#22 0x0000003adf24a450 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#23 0x0000003adf24a4fc in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#24 0x00000039b5ed675b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x2436a40, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#25 0x00000039b5e7ca8a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffc305292c0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#26 0x00000039b5e845fc in QCoreApplication::exec() () at kernel/qcoreapplication.cpp:1188
#27 0x00000039b6cdda3c in QGuiApplication::exec() () at kernel/qguiapplication.cpp:1507
#28 0x00000039b814ec95 in QApplication::exec() () at kernel/qapplication.cpp:2956
#29 0x000000000042eb0f in main(int, char**) (argc=2, argv=<optimized out>) at ../../shell/main.cpp:154

Reported using DrKonqi
Comment 1 Martin Klapetek 2015-05-13 12:41:28 UTC 
Seems related to https://bugs.kde.org/show_bug.cgi?id=347587
Comment 2 Marco Martin 2015-05-14 08:11:51 UTC 
backtrace seems same as https://bugs.kde.org/show_bug.cgi?id=332422
Comment 3 David Edmundson 2015-05-20 00:00:46 UTC 
malloc(): memory corruption (fast)

That shouldn't happen...

have you ever seen this crash again?
Comment 4 Peter Andreasen 2015-05-20 11:53:12 UTC 
The crash happens every time I try to change from "desktop" to "folder view".
It causes the system to hang eventually, so I had to temporarily switch to another desktop.

>> That shouldn't happen...
can't argue with that ;-)
Comment 5 Martin Klapetek 2016-02-03 21:34:44 UTC 
Does this still happen with Plasma 5.5 and Qt 5.5?
Comment 6 Peter Andreasen 2016-02-04 08:53:03 UTC 
On Fedora 23 with plasma-workspace-5.5.4 and qt5-qtbase-5.5.1 I do not get this crash.
Comment 7 Martin Klapetek 2016-02-04 13:18:03 UTC 
Thanks for getting back. Closing this then.