Bug 344224

Summary: Plasmashell crashed in TasksModel::itemRemoved
Product: [Plasma] plasmashell Reporter: Vit Pelcak <vit>
Component: Task Manager and Icons-Only Task ManagerAssignee: Eike Hein <hein>
Status: RESOLVED DUPLICATE    
Severity: crash CC: bhush94, illumilore, kde, keesercc
Priority: NOR Keywords: drkonqi
Version: 5.2.0   
Target Milestone: 1.0   
Platform: unspecified   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description Vit Pelcak 2015-02-16 07:02:34 UTC 
Application: plasmashell ()

Qt Version: 5.4.0
Operating System: Linux 3.18.3-1-desktop x86_64
Distribution: "openSUSE 20150205 (Tumbleweed) (x86_64)"

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

I was opening some test files in kate5 from Dolphin. These were opened, but I got message like "/usr/bin/kate not found" or something like that. After some opened files, I got this crash.

-- Backtrace:
Application: plasmashell (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f03bdb857c0 (LWP 1512))]

Thread 33 (Thread 0x7f03a8050700 (LWP 1513)):
#0  0x00007f03b78e444d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f03bc4af322 in poll (__timeout=-1, __nfds=1, __fds=0x7f03a804fd00) at /usr/include/bits/poll2.h:46
#2  _xcb_conn_wait (c=c@entry=0x1f06fa0, cond=cond@entry=0x1f06fe0, vector=vector@entry=0x0, count=count@entry=0x0) at xcb_conn.c:459
#3  0x00007f03bc4b0def in xcb_wait_for_event (c=0x1f06fa0) at xcb_in.c:623
#4  0x00007f03aa39fc39 in QXcbEventReader::run (this=0x1f11010) at qxcbconnection.cpp:1099
#5  0x00007f03b7f5491f in QThreadPrivate::start (arg=0x1f11010) at thread/qthread_unix.cpp:337
#6  0x00007f03b6eea3a4 in start_thread (arg=0x7f03a8050700) at pthread_create.c:310
#7  0x00007f03b78ec9ed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 32 (Thread 0x7f03a52d5700 (LWP 1696)):
#0  0x00007f03b78e444d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f03b3dd4be4 in g_main_context_poll (priority=2147483647, n_fds=1, fds=0x7f039c002e70, timeout=-1, context=0x7f039c000990) at gmain.c:4076
#2  g_main_context_iterate (context=context@entry=0x7f039c000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3776
#3  0x00007f03b3dd4cec in g_main_context_iteration (context=0x7f039c000990, may_block=1) at gmain.c:3842
#4  0x00007f03b818611b in QEventDispatcherGlib::processEvents (this=0x7f039c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f03b812cd1b in QEventLoop::exec (this=this@entry=0x7f03a52d4df0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f03b7f4fcea in QThread::exec (this=this@entry=0x1fe7760) at thread/qthread.cpp:503
#7  0x00007f03bb1a8cc8 in QQmlThreadPrivate::run (this=0x1fe7760) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007f03b7f5491f in QThreadPrivate::start (arg=0x1fe7760) at thread/qthread_unix.cpp:337
#9  0x00007f03b6eea3a4 in start_thread (arg=0x7f03a52d5700) at pthread_create.c:310
#10 0x00007f03b78ec9ed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 31 (Thread 0x7f0390051700 (LWP 1705)):
#0  0x00007f03b78e444d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f03b3dd4be4 in g_main_context_poll (priority=2147483647, n_fds=1, fds=0x7f0388003070, timeout=-1, context=0x7f0388000990) at gmain.c:4076
#2  g_main_context_iterate (context=context@entry=0x7f0388000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3776
#3  0x00007f03b3dd4cec in g_main_context_iteration (context=0x7f0388000990, may_block=1) at gmain.c:3842
#4  0x00007f03b818611b in QEventDispatcherGlib::processEvents (this=0x7f03880008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f03b812cd1b in QEventLoop::exec (this=this@entry=0x7f0390050df0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f03b7f4fcea in QThread::exec (this=this@entry=0x299c120) at thread/qthread.cpp:503
#7  0x00007f03bb1a8cc8 in QQmlThreadPrivate::run (this=0x299c120) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007f03b7f5491f in QThreadPrivate::start (arg=0x299c120) at thread/qthread_unix.cpp:337
#9  0x00007f03b6eea3a4 in start_thread (arg=0x7f0390051700) at pthread_create.c:310
#10 0x00007f03b78ec9ed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 30 (Thread 0x7f038e70f700 (LWP 1739)):
#0  0x00007f03b3e168e9 in g_mutex_lock (mutex=mutex@entry=0x7f0380000990) at gthread-posix.c:1331
#1  0x00007f03b3dd466c in g_main_context_check (context=context@entry=0x7f0380000990, max_priority=2147483647, fds=fds@entry=0x7f0380003070, n_fds=n_fds@entry=1) at gmain.c:3624
#2  0x00007f03b3dd4b7b in g_main_context_iterate (context=context@entry=0x7f0380000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3778
#3  0x00007f03b3dd4cec in g_main_context_iteration (context=0x7f0380000990, may_block=1) at gmain.c:3842
#4  0x00007f03b818611b in QEventDispatcherGlib::processEvents (this=0x7f03800008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f03b812cd1b in QEventLoop::exec (this=this@entry=0x7f038e70edf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f03b7f4fcea in QThread::exec (this=this@entry=0x2adfb10) at thread/qthread.cpp:503
#7  0x00007f03bb1a8cc8 in QQmlThreadPrivate::run (this=0x2adfb10) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007f03b7f5491f in QThreadPrivate::start (arg=0x2adfb10) at thread/qthread_unix.cpp:337
#9  0x00007f03b6eea3a4 in start_thread (arg=0x7f038e70f700) at pthread_create.c:310
#10 0x00007f03b78ec9ed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 29 (Thread 0x7f038d61e700 (LWP 1740)):
#0  0x00007f03b78e051d in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f03b3e15750 in read (__nbytes=16, __buf=0x7f038d61dbf0, __fd=<optimized out>) at /usr/include/bits/unistd.h:44
#2  g_wakeup_acknowledge (wakeup=0x7f0380002570) at gwakeup.c:210
#3  0x00007f03b3dd4714 in g_main_context_check (context=context@entry=0x7f0384000990, max_priority=2147483647, fds=fds@entry=0x7f0384002e70, n_fds=n_fds@entry=1) at gmain.c:3579
#4  0x00007f03b3dd4b7b in g_main_context_iterate (context=context@entry=0x7f0384000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3778
#5  0x00007f03b3dd4cec in g_main_context_iteration (context=0x7f0384000990, may_block=1) at gmain.c:3842
#6  0x00007f03b818611b in QEventDispatcherGlib::processEvents (this=0x7f03840008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#7  0x00007f03b812cd1b in QEventLoop::exec (this=this@entry=0x7f038d61ddf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#8  0x00007f03b7f4fcea in QThread::exec (this=this@entry=0x2be8fc0) at thread/qthread.cpp:503
#9  0x00007f03bb1a8cc8 in QQmlThreadPrivate::run (this=0x2be8fc0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/ftw/qqmlthread.cpp:141
#10 0x00007f03b7f5491f in QThreadPrivate::start (arg=0x2be8fc0) at thread/qthread_unix.cpp:337
#11 0x00007f03b6eea3a4 in start_thread (arg=0x7f038d61e700) at pthread_create.c:310
#12 0x00007f03b78ec9ed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 28 (Thread 0x7f037ffff700 (LWP 1741)):
#0  QMutex::lock (this=this@entry=0x2cba898) at thread/qmutex.cpp:210
#1  0x00007f03b8186c15 in QMutexLocker (m=0x2cba898, this=<synthetic pointer>) at ../../src/corelib/thread/qmutex.h:128
#2  canWaitLocked (this=0x2cba870) at ../../src/corelib/thread/qthread_p.h:243
#3  postEventSourcePrepare (timeout=<synthetic pointer>, s=0x7f03780012d0) at kernel/qeventdispatcher_glib.cpp:254
#4  postEventSourceCheck (source=0x7f03780012d0) at kernel/qeventdispatcher_glib.cpp:264
#5  0x00007f03b3dd4661 in g_main_context_check (context=context@entry=0x7f0378000990, max_priority=2147483647, fds=fds@entry=0x7f0378003270, n_fds=n_fds@entry=1) at gmain.c:3622
#6  0x00007f03b3dd4b7b in g_main_context_iterate (context=context@entry=0x7f0378000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3778
#7  0x00007f03b3dd4cec in g_main_context_iteration (context=0x7f0378000990, may_block=1) at gmain.c:3842
#8  0x00007f03b818611b in QEventDispatcherGlib::processEvents (this=0x7f03780008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#9  0x00007f03b812cd1b in QEventLoop::exec (this=this@entry=0x7f037fffedf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#10 0x00007f03b7f4fcea in QThread::exec (this=this@entry=0x2cb28b0) at thread/qthread.cpp:503
#11 0x00007f03bb1a8cc8 in QQmlThreadPrivate::run (this=0x2cb28b0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/ftw/qqmlthread.cpp:141
#12 0x00007f03b7f5491f in QThreadPrivate::start (arg=0x2cb28b0) at thread/qthread_unix.cpp:337
#13 0x00007f03b6eea3a4 in start_thread (arg=0x7f037ffff700) at pthread_create.c:310
#14 0x00007f03b78ec9ed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 27 (Thread 0x7f037effe700 (LWP 1743)):
#0  0x00007f03b78e444d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f03b3dd4be4 in g_main_context_poll (priority=2147483647, n_fds=1, fds=0x7f0370002e70, timeout=-1, context=0x7f0370000990) at gmain.c:4076
#2  g_main_context_iterate (context=context@entry=0x7f0370000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3776
#3  0x00007f03b3dd4cec in g_main_context_iteration (context=0x7f0370000990, may_block=1) at gmain.c:3842
#4  0x00007f03b818611b in QEventDispatcherGlib::processEvents (this=0x7f03700008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f03b812cd1b in QEventLoop::exec (this=this@entry=0x7f037effddf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f03b7f4fcea in QThread::exec (this=this@entry=0x2dc6aa0) at thread/qthread.cpp:503
#7  0x00007f03bb1a8cc8 in QQmlThreadPrivate::run (this=0x2dc6aa0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007f03b7f5491f in QThreadPrivate::start (arg=0x2dc6aa0) at thread/qthread_unix.cpp:337
#9  0x00007f03b6eea3a4 in start_thread (arg=0x7f037effe700) at pthread_create.c:310
#10 0x00007f03b78ec9ed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 26 (Thread 0x7f037dffd700 (LWP 1744)):
#0  0x00007f03b8186b00 in timerSourceCheck (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#1  0x00007f03b3dd4661 in g_main_context_check (context=context@entry=0x7f0374000990, max_priority=2147483647, fds=fds@entry=0x7f0374002e70, n_fds=n_fds@entry=1) at gmain.c:3622
#2  0x00007f03b3dd4b7b in g_main_context_iterate (context=context@entry=0x7f0374000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3778
#3  0x00007f03b3dd4cec in g_main_context_iteration (context=0x7f0374000990, may_block=1) at gmain.c:3842
#4  0x00007f03b818611b in QEventDispatcherGlib::processEvents (this=0x7f03740008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f03b812cd1b in QEventLoop::exec (this=this@entry=0x7f037dffcdf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f03b7f4fcea in QThread::exec (this=this@entry=0x2e9bda0) at thread/qthread.cpp:503
#7  0x00007f03bb1a8cc8 in QQmlThreadPrivate::run (this=0x2e9bda0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007f03b7f5491f in QThreadPrivate::start (arg=0x2e9bda0) at thread/qthread_unix.cpp:337
#9  0x00007f03b6eea3a4 in start_thread (arg=0x7f037dffd700) at pthread_create.c:310
#10 0x00007f03b78ec9ed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 25 (Thread 0x7f037cffc700 (LWP 1746)):
#0  0x00007f03b78e444d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f03b3dd4be4 in g_main_context_poll (priority=2147483647, n_fds=1, fds=0x7f0368003270, timeout=-1, context=0x7f0368000990) at gmain.c:4076
#2  g_main_context_iterate (context=context@entry=0x7f0368000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3776
#3  0x00007f03b3dd4cec in g_main_context_iteration (context=0x7f0368000990, may_block=1) at gmain.c:3842
#4  0x00007f03b818611b in QEventDispatcherGlib::processEvents (this=0x7f03680008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f03b812cd1b in QEventLoop::exec (this=this@entry=0x7f037cffbdf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f03b7f4fcea in QThread::exec (this=this@entry=0x2f9fca0) at thread/qthread.cpp:503
#7  0x00007f03bb1a8cc8 in QQmlThreadPrivate::run (this=0x2f9fca0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007f03b7f5491f in QThreadPrivate::start (arg=0x2f9fca0) at thread/qthread_unix.cpp:337
#9  0x00007f03b6eea3a4 in start_thread (arg=0x7f037cffc700) at pthread_create.c:310
#10 0x00007f03b78ec9ed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 24 (Thread 0x7f036f7ff700 (LWP 1748)):
#0  0x00007f03b3e168e9 in g_mutex_lock (mutex=mutex@entry=0x7f0364000990) at gthread-posix.c:1331
#1  0x00007f03b3dd466c in g_main_context_check (context=context@entry=0x7f0364000990, max_priority=2147483647, fds=fds@entry=0x7f0364003070, n_fds=n_fds@entry=1) at gmain.c:3624
#2  0x00007f03b3dd4b7b in g_main_context_iterate (context=context@entry=0x7f0364000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3778
#3  0x00007f03b3dd4cec in g_main_context_iteration (context=0x7f0364000990, may_block=1) at gmain.c:3842
#4  0x00007f03b818611b in QEventDispatcherGlib::processEvents (this=0x7f03640008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f03b812cd1b in QEventLoop::exec (this=this@entry=0x7f036f7fedf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f03b7f4fcea in QThread::exec (this=this@entry=0x3084440) at thread/qthread.cpp:503
#7  0x00007f03bb1a8cc8 in QQmlThreadPrivate::run (this=0x3084440) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007f03b7f5491f in QThreadPrivate::start (arg=0x3084440) at thread/qthread_unix.cpp:337
#9  0x00007f03b6eea3a4 in start_thread (arg=0x7f036f7ff700) at pthread_create.c:310
#10 0x00007f03b78ec9ed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 23 (Thread 0x7f036e5f6700 (LWP 1749)):
#0  0x00007f03b78e051d in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f03b3e15750 in read (__nbytes=16, __buf=0x7f036e5f5bf0, __fd=<optimized out>) at /usr/include/bits/unistd.h:44
#2  g_wakeup_acknowledge (wakeup=0x7f0364002510) at gwakeup.c:210
#3  0x00007f03b3dd4714 in g_main_context_check (context=context@entry=0x7f035c000990, max_priority=2147483647, fds=fds@entry=0x7f035c0027d0, n_fds=n_fds@entry=1) at gmain.c:3579
#4  0x00007f03b3dd4b7b in g_main_context_iterate (context=context@entry=0x7f035c000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3778
#5  0x00007f03b3dd4cec in g_main_context_iteration (context=0x7f035c000990, may_block=1) at gmain.c:3842
#6  0x00007f03b818611b in QEventDispatcherGlib::processEvents (this=0x7f035c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#7  0x00007f03b812cd1b in QEventLoop::exec (this=this@entry=0x7f036e5f5df0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#8  0x00007f03b7f4fcea in QThread::exec (this=this@entry=0x3185810) at thread/qthread.cpp:503
#9  0x00007f03bb1a8cc8 in QQmlThreadPrivate::run (this=0x3185810) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/ftw/qqmlthread.cpp:141
#10 0x00007f03b7f5491f in QThreadPrivate::start (arg=0x3185810) at thread/qthread_unix.cpp:337
#11 0x00007f03b6eea3a4 in start_thread (arg=0x7f036e5f6700) at pthread_create.c:310
#12 0x00007f03b78ec9ed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 22 (Thread 0x7f036d5f5700 (LWP 1750)):
#0  0x00007f03b78e444d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f03b3dd4be4 in g_main_context_poll (priority=2147483647, n_fds=1, fds=0x7f0360002a70, timeout=-1, context=0x7f0360000990) at gmain.c:4076
#2  g_main_context_iterate (context=context@entry=0x7f0360000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3776
#3  0x00007f03b3dd4cec in g_main_context_iteration (context=0x7f0360000990, may_block=1) at gmain.c:3842
#4  0x00007f03b818611b in QEventDispatcherGlib::processEvents (this=0x7f03600008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f03b812cd1b in QEventLoop::exec (this=this@entry=0x7f036d5f4df0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f03b7f4fcea in QThread::exec (this=this@entry=0x3279e90) at thread/qthread.cpp:503
#7  0x00007f03bb1a8cc8 in QQmlThreadPrivate::run (this=0x3279e90) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007f03b7f5491f in QThreadPrivate::start (arg=0x3279e90) at thread/qthread_unix.cpp:337
#9  0x00007f03b6eea3a4 in start_thread (arg=0x7f036d5f5700) at pthread_create.c:310
#10 0x00007f03b78ec9ed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 21 (Thread 0x7f035bfff700 (LWP 1751)):
#0  0x00007f03b78e444d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f03b3dd4be4 in g_main_context_poll (priority=2147483647, n_fds=1, fds=0x7f0354003270, timeout=-1, context=0x7f0354000990) at gmain.c:4076
#2  g_main_context_iterate (context=context@entry=0x7f0354000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3776
#3  0x00007f03b3dd4cec in g_main_context_iteration (context=0x7f0354000990, may_block=1) at gmain.c:3842
#4  0x00007f03b818611b in QEventDispatcherGlib::processEvents (this=0x7f03540008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f03b812cd1b in QEventLoop::exec (this=this@entry=0x7f035bffedf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f03b7f4fcea in QThread::exec (this=this@entry=0x33aed10) at thread/qthread.cpp:503
#7  0x00007f03bb1a8cc8 in QQmlThreadPrivate::run (this=0x33aed10) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007f03b7f5491f in QThreadPrivate::start (arg=0x33aed10) at thread/qthread_unix.cpp:337
#9  0x00007f03b6eea3a4 in start_thread (arg=0x7f035bfff700) at pthread_create.c:310
#10 0x00007f03b78ec9ed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 20 (Thread 0x7f035affe700 (LWP 1752)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f03bd2a947b in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x7f03bd592ea0 <QTWTF::pageheap_memory>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2  0x00007f03bd2a94a9 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=<optimized out>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3  0x00007f03b6eea3a4 in start_thread (arg=0x7f035affe700) at pthread_create.c:310
#4  0x00007f03b78ec9ed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 19 (Thread 0x7f035a7fd700 (LWP 1753)):
#0  0x00007f03b78e051d in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f03b3e15750 in read (__nbytes=16, __buf=0x7f035a7fcbf0, __fd=<optimized out>) at /usr/include/bits/unistd.h:44
#2  g_wakeup_acknowledge (wakeup=0x7f03540027b0) at gwakeup.c:210
#3  0x00007f03b3dd4714 in g_main_context_check (context=context@entry=0x7f02cc000990, max_priority=2147483647, fds=fds@entry=0x7f02cc003270, n_fds=n_fds@entry=1) at gmain.c:3579
#4  0x00007f03b3dd4b7b in g_main_context_iterate (context=context@entry=0x7f02cc000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3778
#5  0x00007f03b3dd4cec in g_main_context_iteration (context=0x7f02cc000990, may_block=1) at gmain.c:3842
#6  0x00007f03b818611b in QEventDispatcherGlib::processEvents (this=0x7f02cc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#7  0x00007f03b812cd1b in QEventLoop::exec (this=this@entry=0x7f035a7fcdf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#8  0x00007f03b7f4fcea in QThread::exec (this=this@entry=0x3484d50) at thread/qthread.cpp:503
#9  0x00007f03bb1a8cc8 in QQmlThreadPrivate::run (this=0x3484d50) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/ftw/qqmlthread.cpp:141
#10 0x00007f03b7f5491f in QThreadPrivate::start (arg=0x3484d50) at thread/qthread_unix.cpp:337
#11 0x00007f03b6eea3a4 in start_thread (arg=0x7f035a7fd700) at pthread_create.c:310
#12 0x00007f03b78ec9ed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 18 (Thread 0x7f0358ebf700 (LWP 1755)):
#0  canWaitLocked (this=0x362cba0) at ../../src/corelib/thread/qthread_p.h:244
#1  postEventSourcePrepare (s=0x7f02d00012d0, timeout=timeout@entry=0x7f0358ebec34) at kernel/qeventdispatcher_glib.cpp:254
#2  0x00007f03b3dd428d in g_main_context_prepare (context=context@entry=0x7f02d0000990, priority=priority@entry=0x7f0358ebecb8) at gmain.c:3399
#3  0x00007f03b3dd4b03 in g_main_context_iterate (context=context@entry=0x7f02d0000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3761
#4  0x00007f03b3dd4cec in g_main_context_iteration (context=0x7f02d0000990, may_block=1) at gmain.c:3842
#5  0x00007f03b818611b in QEventDispatcherGlib::processEvents (this=0x7f02d00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#6  0x00007f03b812cd1b in QEventLoop::exec (this=this@entry=0x7f0358ebedf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#7  0x00007f03b7f4fcea in QThread::exec (this=this@entry=0x362b940) at thread/qthread.cpp:503
#8  0x00007f03bb1a8cc8 in QQmlThreadPrivate::run (this=0x362b940) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/ftw/qqmlthread.cpp:141
#9  0x00007f03b7f5491f in QThreadPrivate::start (arg=0x362b940) at thread/qthread_unix.cpp:337
#10 0x00007f03b6eea3a4 in start_thread (arg=0x7f0358ebf700) at pthread_create.c:310
#11 0x00007f03b78ec9ed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 17 (Thread 0x7f02cb578700 (LWP 1756)):
#0  0x00007f03b78e444d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f03b3dd4be4 in g_main_context_poll (priority=2147483647, n_fds=1, fds=0x7f02c4003070, timeout=-1, context=0x7f02c4000990) at gmain.c:4076
#2  g_main_context_iterate (context=context@entry=0x7f02c4000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3776
#3  0x00007f03b3dd4cec in g_main_context_iteration (context=0x7f02c4000990, may_block=1) at gmain.c:3842
#4  0x00007f03b818611b in QEventDispatcherGlib::processEvents (this=0x7f02c40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f03b812cd1b in QEventLoop::exec (this=this@entry=0x7f02cb577df0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f03b7f4fcea in QThread::exec (this=this@entry=0x3768300) at thread/qthread.cpp:503
#7  0x00007f03bb1a8cc8 in QQmlThreadPrivate::run (this=0x3768300) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007f03b7f5491f in QThreadPrivate::start (arg=0x3768300) at thread/qthread_unix.cpp:337
#9  0x00007f03b6eea3a4 in start_thread (arg=0x7f02cb578700) at pthread_create.c:310
#10 0x00007f03b78ec9ed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 16 (Thread 0x7f02ca577700 (LWP 1759)):
#0  __libc_enable_asynccancel () at ../sysdeps/unix/sysv/linux/x86_64/cancellation.S:65
#1  0x00007f03b78e0512 in read () at ../sysdeps/unix/syscall-template.S:81
#2  0x00007f03b3e15750 in read (__nbytes=16, __buf=0x7f02ca576bf0, __fd=<optimized out>) at /usr/include/bits/unistd.h:44
#3  g_wakeup_acknowledge (wakeup=0x7f02c4002780) at gwakeup.c:210
#4  0x00007f03b3dd4714 in g_main_context_check (context=context@entry=0x7f02bc000990, max_priority=2147483647, fds=fds@entry=0x7f02bc003270, n_fds=n_fds@entry=1) at gmain.c:3579
#5  0x00007f03b3dd4b7b in g_main_context_iterate (context=context@entry=0x7f02bc000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3778
#6  0x00007f03b3dd4cec in g_main_context_iteration (context=0x7f02bc000990, may_block=1) at gmain.c:3842
#7  0x00007f03b818611b in QEventDispatcherGlib::processEvents (this=0x7f02bc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#8  0x00007f03b812cd1b in QEventLoop::exec (this=this@entry=0x7f02ca576df0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#9  0x00007f03b7f4fcea in QThread::exec (this=this@entry=0x38cace0) at thread/qthread.cpp:503
#10 0x00007f03bb1a8cc8 in QQmlThreadPrivate::run (this=0x38cace0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/ftw/qqmlthread.cpp:141
#11 0x00007f03b7f5491f in QThreadPrivate::start (arg=0x38cace0) at thread/qthread_unix.cpp:337
#12 0x00007f03b6eea3a4 in start_thread (arg=0x7f02ca577700) at pthread_create.c:310
#13 0x00007f03b78ec9ed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 15 (Thread 0x7f02c9320700 (LWP 1761)):
#0  0x00007f03b78e444d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f03b3dd4be4 in g_main_context_poll (priority=2147483647, n_fds=1, fds=0x7f02c0002d30, timeout=-1, context=0x7f02c0000990) at gmain.c:4076
#2  g_main_context_iterate (context=context@entry=0x7f02c0000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3776
#3  0x00007f03b3dd4cec in g_main_context_iteration (context=0x7f02c0000990, may_block=1) at gmain.c:3842
#4  0x00007f03b818611b in QEventDispatcherGlib::processEvents (this=0x7f02c00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f03b812cd1b in QEventLoop::exec (this=this@entry=0x7f02c931fdb0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f03b7f4fcea in QThread::exec (this=this@entry=0x3a05200) at thread/qthread.cpp:503
#7  0x00007f03bb5fce12 in QQuickPixmapReader::run (this=0x3a05200) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/quick/util/qquickpixmapcache.cpp:712
#8  0x00007f03b7f5491f in QThreadPrivate::start (arg=0x3a05200) at thread/qthread_unix.cpp:337
#9  0x00007f03b6eea3a4 in start_thread (arg=0x7f02c9320700) at pthread_create.c:310
#10 0x00007f03b78ec9ed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 14 (Thread 0x7f02c8b0f700 (LWP 1763)):
#0  0x00007f03b78e051d in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f03b3e15750 in read (__nbytes=16, __buf=0x7f02c8b0ebb0, __fd=<optimized out>) at /usr/include/bits/unistd.h:44
#2  g_wakeup_acknowledge (wakeup=0x7f02c0002160) at gwakeup.c:210
#3  0x00007f03b3dd4714 in g_main_context_check (context=context@entry=0x7f02b4000990, max_priority=2147483647, fds=fds@entry=0x7f02b4003330, n_fds=n_fds@entry=1) at gmain.c:3579
#4  0x00007f03b3dd4b7b in g_main_context_iterate (context=context@entry=0x7f02b4000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3778
#5  0x00007f03b3dd4cec in g_main_context_iteration (context=0x7f02b4000990, may_block=1) at gmain.c:3842
#6  0x00007f03b818611b in QEventDispatcherGlib::processEvents (this=0x7f02b40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#7  0x00007f03b812cd1b in QEventLoop::exec (this=this@entry=0x7f02c8b0edb0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#8  0x00007f03b7f4fcea in QThread::exec (this=this@entry=0x3a09e30) at thread/qthread.cpp:503
#9  0x00007f03bb5fce12 in QQuickPixmapReader::run (this=0x3a09e30) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/quick/util/qquickpixmapcache.cpp:712
#10 0x00007f03b7f5491f in QThreadPrivate::start (arg=0x3a09e30) at thread/qthread_unix.cpp:337
#11 0x00007f03b6eea3a4 in start_thread (arg=0x7f02c8b0f700) at pthread_create.c:310
#12 0x00007f03b78ec9ed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 13 (Thread 0x7f02ba7ff700 (LWP 1822)):
#0  g_mutex_unlock (mutex=0x7f02b0000990) at gthread-posix.c:1343
#1  0x00007f03b3dd4280 in g_main_context_prepare (context=context@entry=0x7f02b0000990, priority=priority@entry=0x7f02ba7fecb8) at gmain.c:3397
#2  0x00007f03b3dd4b03 in g_main_context_iterate (context=context@entry=0x7f02b0000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3761
#3  0x00007f03b3dd4cec in g_main_context_iteration (context=0x7f02b0000990, may_block=1) at gmain.c:3842
#4  0x00007f03b818611b in QEventDispatcherGlib::processEvents (this=0x7f02b00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f03b812cd1b in QEventLoop::exec (this=this@entry=0x7f02ba7fedf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f03b7f4fcea in QThread::exec (this=this@entry=0x2a18bf0) at thread/qthread.cpp:503
#7  0x00007f03bb1a8cc8 in QQmlThreadPrivate::run (this=0x2a18bf0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007f03b7f5491f in QThreadPrivate::start (arg=0x2a18bf0) at thread/qthread_unix.cpp:337
#9  0x00007f03b6eea3a4 in start_thread (arg=0x7f02ba7ff700) at pthread_create.c:310
#10 0x00007f03b78ec9ed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 12 (Thread 0x7f02af34c700 (LWP 2451)):
#0  0x00007f03b78e444d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f03b3dd4be4 in g_main_context_poll (priority=2147483647, n_fds=1, fds=0x7f02a8002e70, timeout=-1, context=0x7f02a8000990) at gmain.c:4076
#2  g_main_context_iterate (context=context@entry=0x7f02a8000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3776
#3  0x00007f03b3dd4cec in g_main_context_iteration (context=0x7f02a8000990, may_block=1) at gmain.c:3842
#4  0x00007f03b818611b in QEventDispatcherGlib::processEvents (this=0x7f02a80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f03b812cd1b in QEventLoop::exec (this=this@entry=0x7f02af34bdf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f03b7f4fcea in QThread::exec (this=this@entry=0x55d7a90) at thread/qthread.cpp:503
#7  0x00007f03bb1a8cc8 in QQmlThreadPrivate::run (this=0x55d7a90) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007f03b7f5491f in QThreadPrivate::start (arg=0x55d7a90) at thread/qthread_unix.cpp:337
#9  0x00007f03b6eea3a4 in start_thread (arg=0x7f02af34c700) at pthread_create.c:310
#10 0x00007f03b78ec9ed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 11 (Thread 0x7f02ae2db700 (LWP 2452)):
#0  g_source_iter_next (iter=iter@entry=0x7f02ae2dac40, source=source@entry=0x7f02ae2dac38) at gmain.c:925
#1  0x00007f03b3dd422b in g_main_context_prepare (context=context@entry=0x7f02a0000990, priority=priority@entry=0x7f02ae2dacb8) at gmain.c:3377
#2  0x00007f03b3dd4b03 in g_main_context_iterate (context=context@entry=0x7f02a0000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3761
#3  0x00007f03b3dd4cec in g_main_context_iteration (context=0x7f02a0000990, may_block=1) at gmain.c:3842
#4  0x00007f03b818611b in QEventDispatcherGlib::processEvents (this=0x7f02a00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f03b812cd1b in QEventLoop::exec (this=this@entry=0x7f02ae2dadf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f03b7f4fcea in QThread::exec (this=this@entry=0x56aef10) at thread/qthread.cpp:503
#7  0x00007f03bb1a8cc8 in QQmlThreadPrivate::run (this=0x56aef10) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007f03b7f5491f in QThreadPrivate::start (arg=0x56aef10) at thread/qthread_unix.cpp:337
#9  0x00007f03b6eea3a4 in start_thread (arg=0x7f02ae2db700) at pthread_create.c:310
#10 0x00007f03b78ec9ed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7f02ad1e9700 (LWP 2453)):
#0  0x00007f03b8185f32 in socketNotifierSourceCheck (source=0x7f02a4003000) at kernel/qeventdispatcher_glib.cpp:70
#1  0x00007f03b3dd4661 in g_main_context_check (context=context@entry=0x7f02a4000990, max_priority=2147483647, fds=fds@entry=0x7f02a4003270, n_fds=n_fds@entry=1) at gmain.c:3622
#2  0x00007f03b3dd4b7b in g_main_context_iterate (context=context@entry=0x7f02a4000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3778
#3  0x00007f03b3dd4cec in g_main_context_iteration (context=0x7f02a4000990, may_block=1) at gmain.c:3842
#4  0x00007f03b818611b in QEventDispatcherGlib::processEvents (this=0x7f02a40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f03b812cd1b in QEventLoop::exec (this=this@entry=0x7f02ad1e8df0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f03b7f4fcea in QThread::exec (this=this@entry=0x57c7a40) at thread/qthread.cpp:503
#7  0x00007f03bb1a8cc8 in QQmlThreadPrivate::run (this=0x57c7a40) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007f03b7f5491f in QThreadPrivate::start (arg=0x57c7a40) at thread/qthread_unix.cpp:337
#9  0x00007f03b6eea3a4 in start_thread (arg=0x7f02ad1e9700) at pthread_create.c:310
#10 0x00007f03b78ec9ed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7f029ffff700 (LWP 2454)):
#0  0x00007f03b3dd4b81 in g_main_context_iterate (context=context@entry=0x7f0298000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3780
#1  0x00007f03b3dd4cec in g_main_context_iteration (context=0x7f0298000990, may_block=1) at gmain.c:3842
#2  0x00007f03b818611b in QEventDispatcherGlib::processEvents (this=0x7f02980008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#3  0x00007f03b812cd1b in QEventLoop::exec (this=this@entry=0x7f029fffedf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#4  0x00007f03b7f4fcea in QThread::exec (this=this@entry=0x589d6a0) at thread/qthread.cpp:503
#5  0x00007f03bb1a8cc8 in QQmlThreadPrivate::run (this=0x589d6a0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/ftw/qqmlthread.cpp:141
#6  0x00007f03b7f5491f in QThreadPrivate::start (arg=0x589d6a0) at thread/qthread_unix.cpp:337
#7  0x00007f03b6eea3a4 in start_thread (arg=0x7f029ffff700) at pthread_create.c:310
#8  0x00007f03b78ec9ed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7f029effe700 (LWP 2455)):
#0  0x00007f03b78e444d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f03b3dd4be4 in g_main_context_poll (priority=2147483647, n_fds=1, fds=0x7f0290002c70, timeout=-1, context=0x7f0290000990) at gmain.c:4076
#2  g_main_context_iterate (context=context@entry=0x7f0290000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3776
#3  0x00007f03b3dd4cec in g_main_context_iteration (context=0x7f0290000990, may_block=1) at gmain.c:3842
#4  0x00007f03b818611b in QEventDispatcherGlib::processEvents (this=0x7f02900008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f03b812cd1b in QEventLoop::exec (this=this@entry=0x7f029effddf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f03b7f4fcea in QThread::exec (this=this@entry=0x598b9d0) at thread/qthread.cpp:503
#7  0x00007f03bb1a8cc8 in QQmlThreadPrivate::run (this=0x598b9d0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007f03b7f5491f in QThreadPrivate::start (arg=0x598b9d0) at thread/qthread_unix.cpp:337
#9  0x00007f03b6eea3a4 in start_thread (arg=0x7f029effe700) at pthread_create.c:310
#10 0x00007f03b78ec9ed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7f029df0d700 (LWP 2457)):
#0  0x00007f03b3e168e9 in g_mutex_lock (mutex=mutex@entry=0x7f0294000990) at gthread-posix.c:1331
#1  0x00007f03b3dd4299 in g_main_context_prepare (context=context@entry=0x7f0294000990, priority=priority@entry=0x7f029df0ccb8) at gmain.c:3401
#2  0x00007f03b3dd4b03 in g_main_context_iterate (context=context@entry=0x7f0294000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3761
#3  0x00007f03b3dd4cec in g_main_context_iteration (context=0x7f0294000990, may_block=1) at gmain.c:3842
#4  0x00007f03b818611b in QEventDispatcherGlib::processEvents (this=0x7f02940008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f03b812cd1b in QEventLoop::exec (this=this@entry=0x7f029df0cdf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f03b7f4fcea in QThread::exec (this=this@entry=0x5a73320) at thread/qthread.cpp:503
#7  0x00007f03bb1a8cc8 in QQmlThreadPrivate::run (this=0x5a73320) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007f03b7f5491f in QThreadPrivate::start (arg=0x5a73320) at thread/qthread_unix.cpp:337
#9  0x00007f03b6eea3a4 in start_thread (arg=0x7f029df0d700) at pthread_create.c:310
#10 0x00007f03b78ec9ed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f029ce1c700 (LWP 2458)):
#0  0x00007f03b78e444d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f03b3dd4be4 in g_main_context_poll (priority=2147483647, n_fds=1, fds=0x7f0288003270, timeout=-1, context=0x7f0288000990) at gmain.c:4076
#2  g_main_context_iterate (context=context@entry=0x7f0288000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3776
#3  0x00007f03b3dd4cec in g_main_context_iteration (context=0x7f0288000990, may_block=1) at gmain.c:3842
#4  0x00007f03b818611b in QEventDispatcherGlib::processEvents (this=0x7f02880008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f03b812cd1b in QEventLoop::exec (this=this@entry=0x7f029ce1bdf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f03b7f4fcea in QThread::exec (this=this@entry=0x5b66890) at thread/qthread.cpp:503
#7  0x00007f03bb1a8cc8 in QQmlThreadPrivate::run (this=0x5b66890) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007f03b7f5491f in QThreadPrivate::start (arg=0x5b66890) at thread/qthread_unix.cpp:337
#9  0x00007f03b6eea3a4 in start_thread (arg=0x7f029ce1c700) at pthread_create.c:310
#10 0x00007f03b78ec9ed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f028f7ff700 (LWP 2459)):
#0  0x00007f03b78e444d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f03b3dd4be4 in g_main_context_poll (priority=2147483647, n_fds=1, fds=0x7f0284002e70, timeout=-1, context=0x7f0284000990) at gmain.c:4076
#2  g_main_context_iterate (context=context@entry=0x7f0284000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3776
#3  0x00007f03b3dd4cec in g_main_context_iteration (context=0x7f0284000990, may_block=1) at gmain.c:3842
#4  0x00007f03b818611b in QEventDispatcherGlib::processEvents (this=0x7f02840008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f03b812cd1b in QEventLoop::exec (this=this@entry=0x7f028f7fedf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f03b7f4fcea in QThread::exec (this=this@entry=0x5c54a90) at thread/qthread.cpp:503
#7  0x00007f03bb1a8cc8 in QQmlThreadPrivate::run (this=0x5c54a90) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007f03b7f5491f in QThreadPrivate::start (arg=0x5c54a90) at thread/qthread_unix.cpp:337
#9  0x00007f03b6eea3a4 in start_thread (arg=0x7f028f7ff700) at pthread_create.c:310
#10 0x00007f03b78ec9ed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f028cfcc700 (LWP 2595)):
#0  0x00007f03b7f4d2ea in testAndSetRelaxed<QMutexData*> (currentValue=<synthetic pointer>, newValue=0x1, expectedValue=0x0, _q_value=@0x6473df8: 0x1) at ../../src/corelib/arch/qatomic_x86.h:259
#1  testAndSetAcquire<QMutexData*, QMutexData*> (currentValue=<synthetic pointer>, newValue=0x1, expectedValue=0x0, _q_value=@0x6473df8: 0x1) at ../../src/corelib/thread/qgenericatomic.h:166
#2  testAndSetAcquire (currentValue=<synthetic pointer>, newValue=0x1, expectedValue=0x0, this=0x6473df8, this@entry=0x1) at ../../src/corelib/thread/qbasicatomic.h:270
#3  fastTryLock (current=<synthetic pointer>, this=0x6473df8, this@entry=0x1) at thread/qmutex.h:82
#4  QMutex::lock (this=this@entry=0x6473df8) at thread/qmutex.cpp:212
#5  0x00007f03b8186c15 in QMutexLocker (m=0x6473df8, this=<synthetic pointer>) at ../../src/corelib/thread/qmutex.h:128
#6  canWaitLocked (this=0x6473dd0) at ../../src/corelib/thread/qthread_p.h:243
#7  postEventSourcePrepare (timeout=<synthetic pointer>, s=0x7f027c0012d0) at kernel/qeventdispatcher_glib.cpp:254
#8  postEventSourceCheck (source=0x7f027c0012d0) at kernel/qeventdispatcher_glib.cpp:264
#9  0x00007f03b3dd4661 in g_main_context_check (context=context@entry=0x7f027c000990, max_priority=2147483647, fds=fds@entry=0x7f027c003070, n_fds=n_fds@entry=1) at gmain.c:3622
#10 0x00007f03b3dd4b7b in g_main_context_iterate (context=context@entry=0x7f027c000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3778
#11 0x00007f03b3dd4cec in g_main_context_iteration (context=0x7f027c000990, may_block=1) at gmain.c:3842
#12 0x00007f03b818611b in QEventDispatcherGlib::processEvents (this=0x7f027c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#13 0x00007f03b812cd1b in QEventLoop::exec (this=this@entry=0x7f028cfcbdf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#14 0x00007f03b7f4fcea in QThread::exec (this=this@entry=0x6473c20) at thread/qthread.cpp:503
#15 0x00007f03bb1a8cc8 in QQmlThreadPrivate::run (this=0x6473c20) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/ftw/qqmlthread.cpp:141
#16 0x00007f03b7f5491f in QThreadPrivate::start (arg=0x6473c20) at thread/qthread_unix.cpp:337
#17 0x00007f03b6eea3a4 in start_thread (arg=0x7f028cfcc700) at pthread_create.c:310
#18 0x00007f03b78ec9ed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f02837ff700 (LWP 2597)):
#0  timerSourcePrepare (source=0x7f0278002e70, timeout=timeout@entry=0x7f02837fec34) at kernel/qeventdispatcher_glib.cpp:151
#1  0x00007f03b3dd428d in g_main_context_prepare (context=context@entry=0x7f0278000990, priority=priority@entry=0x7f02837fecb8) at gmain.c:3399
#2  0x00007f03b3dd4b03 in g_main_context_iterate (context=context@entry=0x7f0278000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3761
#3  0x00007f03b3dd4cec in g_main_context_iteration (context=0x7f0278000990, may_block=1) at gmain.c:3842
#4  0x00007f03b818611b in QEventDispatcherGlib::processEvents (this=0x7f02780008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f03b812cd1b in QEventLoop::exec (this=this@entry=0x7f02837fedf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f03b7f4fcea in QThread::exec (this=this@entry=0x66c5090) at thread/qthread.cpp:503
#7  0x00007f03bb1a8cc8 in QQmlThreadPrivate::run (this=0x66c5090) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007f03b7f5491f in QThreadPrivate::start (arg=0x66c5090) at thread/qthread_unix.cpp:337
#9  0x00007f03b6eea3a4 in start_thread (arg=0x7f02837ff700) at pthread_create.c:310
#10 0x00007f03b78ec9ed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f0277fff700 (LWP 3082)):
#0  g_mutex_unlock (mutex=0x6803c30) at gthread-posix.c:1343
#1  0x00007f03b3dd4280 in g_main_context_prepare (context=context@entry=0x6803c30, priority=priority@entry=0x7f0277ffecb8) at gmain.c:3397
#2  0x00007f03b3dd4b03 in g_main_context_iterate (context=context@entry=0x6803c30, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3761
#3  0x00007f03b3dd4cec in g_main_context_iteration (context=0x6803c30, may_block=1) at gmain.c:3842
#4  0x00007f03b818611b in QEventDispatcherGlib::processEvents (this=0x6122530, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f03b812cd1b in QEventLoop::exec (this=this@entry=0x7f0277ffedf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f03b7f4fcea in QThread::exec (this=this@entry=0x6b16e10) at thread/qthread.cpp:503
#7  0x00007f03bb1a8cc8 in QQmlThreadPrivate::run (this=0x6b16e10) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007f03b7f5491f in QThreadPrivate::start (arg=0x6b16e10) at thread/qthread_unix.cpp:337
#9  0x00007f03b6eea3a4 in start_thread (arg=0x7f0277fff700) at pthread_create.c:310
#10 0x00007f03b78ec9ed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f03bdb857c0 (LWP 1512)):
[KCrash Handler]
#6  0x00007f03b80e18f4 in Change (c=..., this=0x80e5f38) at ../../src/corelib/itemmodels/qabstractitemmodel_p.h:128
#7  QVector<QAbstractItemModelPrivate::Change>::reallocData (this=this@entry=0x53b6d70, asize=-1, aalloc=<optimized out>, options=...) at ../../src/corelib/tools/qvector.h:515
#8  0x00007f03b80dc9d8 in resize (asize=<optimized out>, this=0x53b6d70) at ../../src/corelib/tools/qvector.h:381
#9  pop (this=0x53b6d70) at ../../src/corelib/tools/qstack.h:58
#10 QAbstractItemModel::endRemoveRows (this=0x53b5100) at itemmodels/qabstractitemmodel.cpp:2666
#11 0x00007f02b8244a8c in itemRemoved (item=<optimized out>, this=<optimized out>) at /usr/src/debug/plasma-workspace-5.2.0/libtaskmanager/tasksmodel.cpp:484
#12 TaskManager::TasksModel::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=0x7fffaf765440) at /usr/src/debug/plasma-workspace-5.2.0/build/libtaskmanager/moc_tasksmodel.cpp:210
#13 0x00007f03b815e641 in QMetaObject::activate (sender=0x53b3bd0, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=3, argv=argv@entry=0x7fffaf765440) at kernel/qobject.cpp:3716
#14 0x00007f03b815ec67 in QMetaObject::activate (sender=<optimized out>, m=m@entry=0x7f02b8466800 <TaskManager::TaskGroup::staticMetaObject>, local_signal_index=local_signal_index@entry=3, argv=argv@entry=0x7fffaf765440) at kernel/qobject.cpp:3582
#15 0x00007f02b8236c72 in TaskManager::TaskGroup::itemRemoved (this=<optimized out>, _t1=0x6f1f550) at /usr/src/debug/plasma-workspace-5.2.0/build/libtaskmanager/moc_taskgroup.cpp:418
#16 0x00007f02b8237633 in TaskManager::TaskGroup::Private::signalRemovals (this=0x53cb340) at /usr/src/debug/plasma-workspace-5.2.0/libtaskmanager/taskgroup.cpp:271
#17 0x00007f02b8238ef1 in TaskManager::TaskGroup::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at /usr/src/debug/plasma-workspace-5.2.0/build/libtaskmanager/moc_taskgroup.cpp:213
#18 0x00007f03b815f446 in QObject::event (this=0x53b3bd0, e=<optimized out>) at kernel/qobject.cpp:1245
#19 0x00007f03b94811dc in QApplicationPrivate::notify_helper (this=this@entry=0x1ef7620, receiver=receiver@entry=0x53b3bd0, e=e@entry=0x7fad160) at kernel/qapplication.cpp:3722
#20 0x00007f03b94861f0 in QApplication::notify (this=0x7fffaf765c10, receiver=0x53b3bd0, e=0x7fad160) at kernel/qapplication.cpp:3505
#21 0x00007f03b812edc5 in QCoreApplication::notifyInternal (this=0x7fffaf765c10, receiver=0x53b3bd0, event=event@entry=0x7fad160) at kernel/qcoreapplication.cpp:932
#22 0x00007f03b8130c5f in sendEvent (event=0x7fad160, receiver=<optimized out>) at kernel/qcoreapplication.h:228
#23 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x1eec570) at kernel/qcoreapplication.cpp:1536
#24 0x00007f03b8131298 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1394
#25 0x00007f03b8186c83 in postEventSourceDispatch (s=0x1f31530) at kernel/qeventdispatcher_glib.cpp:271
#26 0x00007f03b3dd4a04 in g_main_dispatch (context=0x7f03a00016f0) at gmain.c:3111
#27 g_main_context_dispatch (context=context@entry=0x7f03a00016f0) at gmain.c:3710
#28 0x00007f03b3dd4c48 in g_main_context_iterate (context=context@entry=0x7f03a00016f0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3781
#29 0x00007f03b3dd4cec in g_main_context_iteration (context=0x7f03a00016f0, may_block=1) at gmain.c:3842
#30 0x00007f03b81860fc in QEventDispatcherGlib::processEvents (this=0x1f31510, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#31 0x00007f03b812cd1b in QEventLoop::exec (this=this@entry=0x7fffaf765aa0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#32 0x00007f03b81343a6 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1185
#33 0x00007f03b865cfac in QGuiApplication::exec () at kernel/qguiapplication.cpp:1532
#34 0x00007f03b947d9e5 in QApplication::exec () at kernel/qapplication.cpp:2956
#35 0x0000000000432144 in main (argc=2, argv=<optimized out>) at /usr/src/debug/plasma-workspace-5.2.0/shell/main.cpp:150

Reported using DrKonqi
Comment 1 David Edmundson 2015-02-16 19:41:12 UTC 
#12 TaskManager::TasksModel::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=0x7fffaf765440) at /usr/src/debug/plasma-workspace-5.2.0/build/libtaskmanager/moc_tasksmodel.cpp:210


moving to task manager
Comment 2 David Edmundson 2015-04-26 00:38:11 UTC 
*** Bug 344986 has been marked as a duplicate of this bug. ***
Comment 3 David Edmundson 2015-04-26 11:42:04 UTC 

*** This bug has been marked as a duplicate of bug 342763 ***
Comment 4 David Edmundson 2015-05-16 22:48:06 UTC 
*** Bug 347619 has been marked as a duplicate of this bug. ***