Application: plasmashell (5.3.2)

Qt Version: 5.4.2
Operating System: Linux 4.0.7-2-ARCH x86_64
Distribution: "Arch Linux"

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

I was away from keyboard this time, but a window popped up while I was gone. This crash occurs a couple times per hour for me while I'm working. It's possible that the bug only happens when something changes in the Task Manager.

349842 and 349519 are probably duplicates, but I couldn't get the Crash Reporting Assistant to select any duplicates even though I pressed the "Suggest this crash is related" button.
I don't use Konversation, unlike the reporter of 349842.

thanks!

The crash can be reproduced sometimes.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f899d611800 (LWP 3266))]

Thread 27 (Thread 0x7f8986c1d700 (LWP 3268)):
#0  0x00007f899706ce8d in poll () from /usr/lib/libc.so.6
#1  0x00007f899bf8b9f2 in ?? () from /usr/lib/libxcb.so.1
#2  0x00007f899bf8d56f in xcb_wait_for_event () from /usr/lib/libxcb.so.1
#3  0x00007f8988536089 in QXcbEventReader::run (this=0x1e98cc0) at qxcbconnection.cpp:1105
#4  0x00007f899775208e in QThreadPrivate::start (arg=0x1e98cc0) at thread/qthread_unix.cpp:337
#5  0x00007f8996664354 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007f8997075bfd in clone () from /usr/lib/libc.so.6

Thread 26 (Thread 0x7f897ffff700 (LWP 3272)):
#0  0x00007f89933683f9 in g_mutex_lock () from /usr/lib/libglib-2.0.so.0
#1  0x00007f8993323097 in g_main_context_prepare () from /usr/lib/libglib-2.0.so.0
#2  0x00007f8993323ba8 in ?? () from /usr/lib/libglib-2.0.so.0
#3  0x00007f8993323d8c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#4  0x00007f8997988d1b in QEventDispatcherGlib::processEvents (this=0x7f89780008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f899792effa in QEventLoop::exec (this=this@entry=0x7f897fffeda0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f899774d1a4 in QThread::exec (this=this@entry=0x1f79b50) at thread/qthread.cpp:503
#7  0x00007f899aa27aa5 in QQmlThreadPrivate::run (this=0x1f79b50) at qml/ftw/qqmlthread.cpp:141
#8  0x00007f899775208e in QThreadPrivate::start (arg=0x1f79b50) at thread/qthread_unix.cpp:337
#9  0x00007f8996664354 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007f8997075bfd in clone () from /usr/lib/libc.so.6

Thread 25 (Thread 0x7f8976775700 (LWP 3295)):
#0  0x00007f8993368414 in g_mutex_unlock () from /usr/lib/libglib-2.0.so.0
#1  0x00007f8993323250 in g_main_context_prepare () from /usr/lib/libglib-2.0.so.0
#2  0x00007f8993323ba8 in ?? () from /usr/lib/libglib-2.0.so.0
#3  0x00007f8993323d8c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#4  0x00007f8997988d1b in QEventDispatcherGlib::processEvents (this=0x7f89700008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f899792effa in QEventLoop::exec (this=this@entry=0x7f8976774da0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f899774d1a4 in QThread::exec (this=this@entry=0x2c9cc60) at thread/qthread.cpp:503
#7  0x00007f899aa27aa5 in QQmlThreadPrivate::run (this=0x2c9cc60) at qml/ftw/qqmlthread.cpp:141
#8  0x00007f899775208e in QThreadPrivate::start (arg=0x2c9cc60) at thread/qthread_unix.cpp:337
#9  0x00007f8996664354 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007f8997075bfd in clone () from /usr/lib/libc.so.6

Thread 24 (Thread 0x7f896ffff700 (LWP 3301)):
#0  0x00007f8993368414 in g_mutex_unlock () from /usr/lib/libglib-2.0.so.0
#1  0x00007f8993323c36 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007f8993323d8c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007f8997988d1b in QEventDispatcherGlib::processEvents (this=0x7f89640008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f899792effa in QEventLoop::exec (this=this@entry=0x7f896fffeda0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f899774d1a4 in QThread::exec (this=this@entry=0x2daa1f0) at thread/qthread.cpp:503
#6  0x00007f899aa27aa5 in QQmlThreadPrivate::run (this=0x2daa1f0) at qml/ftw/qqmlthread.cpp:141
#7  0x00007f899775208e in QThreadPrivate::start (arg=0x2daa1f0) at thread/qthread_unix.cpp:337
#8  0x00007f8996664354 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007f8997075bfd in clone () from /usr/lib/libc.so.6

Thread 23 (Thread 0x7f896effe700 (LWP 3302)):
#0  0x00007f8993320cac in ?? () from /usr/lib/libglib-2.0.so.0
#1  0x00007f89933235af in g_main_context_check () from /usr/lib/libglib-2.0.so.0
#2  0x00007f8993323c20 in ?? () from /usr/lib/libglib-2.0.so.0
#3  0x00007f8993323d8c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#4  0x00007f8997988d1b in QEventDispatcherGlib::processEvents (this=0x7f895c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f899792effa in QEventLoop::exec (this=this@entry=0x7f896effdda0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f899774d1a4 in QThread::exec (this=this@entry=0x2ea58c0) at thread/qthread.cpp:503
#7  0x00007f899aa27aa5 in QQmlThreadPrivate::run (this=0x2ea58c0) at qml/ftw/qqmlthread.cpp:141
#8  0x00007f899775208e in QThreadPrivate::start (arg=0x2ea58c0) at thread/qthread_unix.cpp:337
#9  0x00007f8996664354 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007f8997075bfd in clone () from /usr/lib/libc.so.6

Thread 22 (Thread 0x7f896dffd700 (LWP 3303)):
#0  0x00007f899706ce8d in poll () from /usr/lib/libc.so.6
#1  0x00007f8993323c7c in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007f8993323d8c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007f8997988d1b in QEventDispatcherGlib::processEvents (this=0x7f89600008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f899792effa in QEventLoop::exec (this=this@entry=0x7f896dffcda0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f899774d1a4 in QThread::exec (this=this@entry=0x2fa5790) at thread/qthread.cpp:503
#6  0x00007f899aa27aa5 in QQmlThreadPrivate::run (this=0x2fa5790) at qml/ftw/qqmlthread.cpp:141
#7  0x00007f899775208e in QThreadPrivate::start (arg=0x2fa5790) at thread/qthread_unix.cpp:337
#8  0x00007f8996664354 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007f8997075bfd in clone () from /usr/lib/libc.so.6

Thread 21 (Thread 0x7f896cffc700 (LWP 3304)):
#0  0x00007f8993320cc6 in ?? () from /usr/lib/libglib-2.0.so.0
#1  0x00007f899332315b in g_main_context_prepare () from /usr/lib/libglib-2.0.so.0
#2  0x00007f8993323ba8 in ?? () from /usr/lib/libglib-2.0.so.0
#3  0x00007f8993323d8c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#4  0x00007f8997988d1b in QEventDispatcherGlib::processEvents (this=0x7f89540008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f899792effa in QEventLoop::exec (this=this@entry=0x7f896cffbda0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f899774d1a4 in QThread::exec (this=this@entry=0x30c9e10) at thread/qthread.cpp:503
#7  0x00007f899aa27aa5 in QQmlThreadPrivate::run (this=0x30c9e10) at qml/ftw/qqmlthread.cpp:141
#8  0x00007f899775208e in QThreadPrivate::start (arg=0x30c9e10) at thread/qthread_unix.cpp:337
#9  0x00007f8996664354 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007f8997075bfd in clone () from /usr/lib/libc.so.6

Thread 20 (Thread 0x7f895b7ff700 (LWP 3305)):
#0  0x00007f8993368414 in g_mutex_unlock () from /usr/lib/libglib-2.0.so.0
#1  0x00007f8993323c71 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007f8993323d8c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007f8997988d1b in QEventDispatcherGlib::processEvents (this=0x7f89500008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f899792effa in QEventLoop::exec (this=this@entry=0x7f895b7feda0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f899774d1a4 in QThread::exec (this=this@entry=0x3192980) at thread/qthread.cpp:503
#6  0x00007f899aa27aa5 in QQmlThreadPrivate::run (this=0x3192980) at qml/ftw/qqmlthread.cpp:141
#7  0x00007f899775208e in QThreadPrivate::start (arg=0x3192980) at thread/qthread_unix.cpp:337
#8  0x00007f8996664354 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007f8997075bfd in clone () from /usr/lib/libc.so.6

Thread 19 (Thread 0x7f895a7fe700 (LWP 3306)):
#0  0x00007f89933683f9 in g_mutex_lock () from /usr/lib/libglib-2.0.so.0
#1  0x00007f8993323097 in g_main_context_prepare () from /usr/lib/libglib-2.0.so.0
#2  0x00007f8993323ba8 in ?? () from /usr/lib/libglib-2.0.so.0
#3  0x00007f8993323d8c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#4  0x00007f8997988d1b in QEventDispatcherGlib::processEvents (this=0x7f89480008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f899792effa in QEventLoop::exec (this=this@entry=0x7f895a7fdda0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f899774d1a4 in QThread::exec (this=this@entry=0x32762a0) at thread/qthread.cpp:503
#7  0x00007f899aa27aa5 in QQmlThreadPrivate::run (this=0x32762a0) at qml/ftw/qqmlthread.cpp:141
#8  0x00007f899775208e in QThreadPrivate::start (arg=0x32762a0) at thread/qthread_unix.cpp:337
#9  0x00007f8996664354 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007f8997075bfd in clone () from /usr/lib/libc.so.6

Thread 18 (Thread 0x7f89597fd700 (LWP 3307)):
#0  0x00007f8993320ca8 in ?? () from /usr/lib/libglib-2.0.so.0
#1  0x00007f899332315b in g_main_context_prepare () from /usr/lib/libglib-2.0.so.0
#2  0x00007f8993323ba8 in ?? () from /usr/lib/libglib-2.0.so.0
#3  0x00007f8993323d8c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#4  0x00007f8997988d1b in QEventDispatcherGlib::processEvents (this=0x7f894c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f899792effa in QEventLoop::exec (this=this@entry=0x7f89597fcda0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f899774d1a4 in QThread::exec (this=this@entry=0x337a660) at thread/qthread.cpp:503
#7  0x00007f899aa27aa5 in QQmlThreadPrivate::run (this=0x337a660) at qml/ftw/qqmlthread.cpp:141
#8  0x00007f899775208e in QThreadPrivate::start (arg=0x337a660) at thread/qthread_unix.cpp:337
#9  0x00007f8996664354 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007f8997075bfd in clone () from /usr/lib/libc.so.6

Thread 17 (Thread 0x7f8947fff700 (LWP 3308)):
#0  0x00007f8993368414 in g_mutex_unlock () from /usr/lib/libglib-2.0.so.0
#1  0x00007f8993323b2d in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007f8993323d8c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007f8997988d1b in QEventDispatcherGlib::processEvents (this=0x7f89400008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f899792effa in QEventLoop::exec (this=this@entry=0x7f8947ffeda0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f899774d1a4 in QThread::exec (this=this@entry=0x3466a60) at thread/qthread.cpp:503
#6  0x00007f899aa27aa5 in QQmlThreadPrivate::run (this=0x3466a60) at qml/ftw/qqmlthread.cpp:141
#7  0x00007f899775208e in QThreadPrivate::start (arg=0x3466a60) at thread/qthread_unix.cpp:337
#8  0x00007f8996664354 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007f8997075bfd in clone () from /usr/lib/libc.so.6

Thread 16 (Thread 0x7f8946ffe700 (LWP 3309)):
#0  0x00007f899706ce8d in poll () from /usr/lib/libc.so.6
#1  0x00007f8993323c7c in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007f8993323d8c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007f8997988d1b in QEventDispatcherGlib::processEvents (this=0x7f89380008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f899792effa in QEventLoop::exec (this=this@entry=0x7f8946ffdda0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f899774d1a4 in QThread::exec (this=this@entry=0x355b720) at thread/qthread.cpp:503
#6  0x00007f899aa27aa5 in QQmlThreadPrivate::run (this=0x355b720) at qml/ftw/qqmlthread.cpp:141
#7  0x00007f899775208e in QThreadPrivate::start (arg=0x355b720) at thread/qthread_unix.cpp:337
#8  0x00007f8996664354 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007f8997075bfd in clone () from /usr/lib/libc.so.6

Thread 15 (Thread 0x7f8945ffd700 (LWP 3310)):
#0  0x00007f899706ce8d in poll () from /usr/lib/libc.so.6
#1  0x00007f8993323c7c in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007f8993323d8c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007f8997988d1b in QEventDispatcherGlib::processEvents (this=0x7f893c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f899792effa in QEventLoop::exec (this=this@entry=0x7f8945ffcda0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f899774d1a4 in QThread::exec (this=this@entry=0x364daa0) at thread/qthread.cpp:503
#6  0x00007f899aa27aa5 in QQmlThreadPrivate::run (this=0x364daa0) at qml/ftw/qqmlthread.cpp:141
#7  0x00007f899775208e in QThreadPrivate::start (arg=0x364daa0) at thread/qthread_unix.cpp:337
#8  0x00007f8996664354 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007f8997075bfd in clone () from /usr/lib/libc.so.6

Thread 14 (Thread 0x7f8944ffc700 (LWP 3311)):
#0  0x00007f899666996f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007f899cdbc4a4 in ?? () from /usr/lib/libQt5Script.so.5
#2  0x00007f899cdbc4e9 in ?? () from /usr/lib/libQt5Script.so.5
#3  0x00007f8996664354 in start_thread () from /usr/lib/libpthread.so.0
#4  0x00007f8997075bfd in clone () from /usr/lib/libc.so.6

Thread 13 (Thread 0x7f88b7fff700 (LWP 3312)):
#0  0x00007f89933683f9 in g_mutex_lock () from /usr/lib/libglib-2.0.so.0
#1  0x00007f8993323b7d in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007f8993323d8c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007f8997988d1b in QEventDispatcherGlib::processEvents (this=0x7f88b00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f899792effa in QEventLoop::exec (this=this@entry=0x7f88b7ffeda0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f899774d1a4 in QThread::exec (this=this@entry=0x374ac40) at thread/qthread.cpp:503
#6  0x00007f899aa27aa5 in QQmlThreadPrivate::run (this=0x374ac40) at qml/ftw/qqmlthread.cpp:141
#7  0x00007f899775208e in QThreadPrivate::start (arg=0x374ac40) at thread/qthread_unix.cpp:337
#8  0x00007f8996664354 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007f8997075bfd in clone () from /usr/lib/libc.so.6

Thread 12 (Thread 0x7f88b4dd8700 (LWP 3314)):
#0  0x00007f899706ce8d in poll () from /usr/lib/libc.so.6
#1  0x00007f8993323c7c in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007f8993323d8c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007f8997988d1b in QEventDispatcherGlib::processEvents (this=0x7f88a80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f899792effa in QEventLoop::exec (this=this@entry=0x7f88b4dd7da0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f899774d1a4 in QThread::exec (this=this@entry=0x3f52230) at thread/qthread.cpp:503
#6  0x00007f899aa27aa5 in QQmlThreadPrivate::run (this=0x3f52230) at qml/ftw/qqmlthread.cpp:141
#7  0x00007f899775208e in QThreadPrivate::start (arg=0x3f52230) at thread/qthread_unix.cpp:337
#8  0x00007f8996664354 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007f8997075bfd in clone () from /usr/lib/libc.so.6

Thread 11 (Thread 0x7f88af33e700 (LWP 3315)):
#0  0x00007f899706ce8d in poll () from /usr/lib/libc.so.6
#1  0x00007f8993323c7c in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007f8993323d8c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007f8997988d1b in QEventDispatcherGlib::processEvents (this=0x7f88a40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f899792effa in QEventLoop::exec (this=this@entry=0x7f88af33dd50, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f899774d1a4 in QThread::exec (this=this@entry=0x4074310) at thread/qthread.cpp:503
#6  0x00007f899b095a96 in QQuickPixmapReader::run (this=0x4074310) at util/qquickpixmapcache.cpp:714
#7  0x00007f899775208e in QThreadPrivate::start (arg=0x4074310) at thread/qthread_unix.cpp:337
#8  0x00007f8996664354 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007f8997075bfd in clone () from /usr/lib/libc.so.6

Thread 10 (Thread 0x7f88ad83d700 (LWP 3321)):
#0  0x00007f899706ce8d in poll () from /usr/lib/libc.so.6
#1  0x00007f8993323c7c in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007f8993323d8c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007f8997988d1b in QEventDispatcherGlib::processEvents (this=0x7f889c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f899792effa in QEventLoop::exec (this=this@entry=0x7f88ad83cda0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f899774d1a4 in QThread::exec (this=this@entry=0x1f5f960) at thread/qthread.cpp:503
#6  0x00007f899aa27aa5 in QQmlThreadPrivate::run (this=0x1f5f960) at qml/ftw/qqmlthread.cpp:141
#7  0x00007f899775208e in QThreadPrivate::start (arg=0x1f5f960) at thread/qthread_unix.cpp:337
#8  0x00007f8996664354 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007f8997075bfd in clone () from /usr/lib/libc.so.6

Thread 9 (Thread 0x7f88a18d4700 (LWP 3324)):
#0  0x00007f89933683f9 in g_mutex_lock () from /usr/lib/libglib-2.0.so.0
#1  0x00007f89933231c9 in g_main_context_prepare () from /usr/lib/libglib-2.0.so.0
#2  0x00007f8993323ba8 in ?? () from /usr/lib/libglib-2.0.so.0
#3  0x00007f8993323d8c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#4  0x00007f8997988d1b in QEventDispatcherGlib::processEvents (this=0x7f88980008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f899792effa in QEventLoop::exec (this=this@entry=0x7f88a18d3da0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f899774d1a4 in QThread::exec (this=this@entry=0x6a17470) at thread/qthread.cpp:503
#7  0x00007f899aa27aa5 in QQmlThreadPrivate::run (this=0x6a17470) at qml/ftw/qqmlthread.cpp:141
#8  0x00007f899775208e in QThreadPrivate::start (arg=0x6a17470) at thread/qthread_unix.cpp:337
#9  0x00007f8996664354 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007f8997075bfd in clone () from /usr/lib/libc.so.6

Thread 8 (Thread 0x7f8897fff700 (LWP 3325)):
#0  0x00007f89933683f9 in g_mutex_lock () from /usr/lib/libglib-2.0.so.0
#1  0x00007f8993323097 in g_main_context_prepare () from /usr/lib/libglib-2.0.so.0
#2  0x00007f8993323ba8 in ?? () from /usr/lib/libglib-2.0.so.0
#3  0x00007f8993323d8c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#4  0x00007f8997988d1b in QEventDispatcherGlib::processEvents (this=0x7f88900008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f899792effa in QEventLoop::exec (this=this@entry=0x7f8897ffeda0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f899774d1a4 in QThread::exec (this=this@entry=0x7244930) at thread/qthread.cpp:503
#7  0x00007f899aa27aa5 in QQmlThreadPrivate::run (this=0x7244930) at qml/ftw/qqmlthread.cpp:141
#8  0x00007f899775208e in QThreadPrivate::start (arg=0x7244930) at thread/qthread_unix.cpp:337
#9  0x00007f8996664354 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007f8997075bfd in clone () from /usr/lib/libc.so.6

Thread 7 (Thread 0x7f8896ffe700 (LWP 3326)):
#0  0x00007f899d534324 in _dl_update_slotinfo () from /lib64/ld-linux-x86-64.so.2
#1  0x00007f899d53437c in update_get_addr () from /lib64/ld-linux-x86-64.so.2
#2  0x00007f8997750fd2 in get_thread_data () at thread/qthread_unix.cpp:181
#3  QThreadData::current (createIfNecessary=createIfNecessary@entry=true) at thread/qthread_unix.cpp:212
#4  0x00007f899798827a in postEventSourcePrepare (s=0x7f88880012d0, timeout=0x7f8896ffdbe4) at kernel/qeventdispatcher_glib.cpp:247
#5  0x00007f89933231bd in g_main_context_prepare () from /usr/lib/libglib-2.0.so.0
#6  0x00007f8993323ba8 in ?? () from /usr/lib/libglib-2.0.so.0
#7  0x00007f8993323d8c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#8  0x00007f8997988d1b in QEventDispatcherGlib::processEvents (this=0x7f88880008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#9  0x00007f899792effa in QEventLoop::exec (this=this@entry=0x7f8896ffdda0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#10 0x00007f899774d1a4 in QThread::exec (this=this@entry=0x7334760) at thread/qthread.cpp:503
#11 0x00007f899aa27aa5 in QQmlThreadPrivate::run (this=0x7334760) at qml/ftw/qqmlthread.cpp:141
#12 0x00007f899775208e in QThreadPrivate::start (arg=0x7334760) at thread/qthread_unix.cpp:337
#13 0x00007f8996664354 in start_thread () from /usr/lib/libpthread.so.0
#14 0x00007f8997075bfd in clone () from /usr/lib/libc.so.6

Thread 6 (Thread 0x7f888e2b8700 (LWP 3330)):
#0  0x00007f8997068f1d in read () from /usr/lib/libc.so.6
#1  0x00007f8993366f60 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007f899332372c in g_main_context_check () from /usr/lib/libglib-2.0.so.0
#3  0x00007f8993323c20 in ?? () from /usr/lib/libglib-2.0.so.0
#4  0x00007f8993323d8c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#5  0x00007f8997988d1b in QEventDispatcherGlib::processEvents (this=0x7f88840008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#6  0x00007f899792effa in QEventLoop::exec (this=this@entry=0x7f888e2b7d80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#7  0x00007f899774d1a4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#8  0x00007f889487da47 in KCupsConnection::run() () from /usr/lib/libkcupslib.so
#9  0x00007f899775208e in QThreadPrivate::start (arg=0x7742eb0) at thread/qthread_unix.cpp:337
#10 0x00007f8996664354 in start_thread () from /usr/lib/libpthread.so.0
#11 0x00007f8997075bfd in clone () from /usr/lib/libc.so.6

Thread 5 (Thread 0x7f888d730700 (LWP 3334)):
#0  0x00007f899706ce8d in poll () from /usr/lib/libc.so.6
#1  0x00007f8993323c7c in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007f8993323d8c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007f8997988d1b in QEventDispatcherGlib::processEvents (this=0x7f887c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f899792effa in QEventLoop::exec (this=this@entry=0x7f888d72fda0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f899774d1a4 in QThread::exec (this=this@entry=0x78a57a0) at thread/qthread.cpp:503
#6  0x00007f899aa27aa5 in QQmlThreadPrivate::run (this=0x78a57a0) at qml/ftw/qqmlthread.cpp:141
#7  0x00007f899775208e in QThreadPrivate::start (arg=0x78a57a0) at thread/qthread_unix.cpp:337
#8  0x00007f8996664354 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007f8997075bfd in clone () from /usr/lib/libc.so.6

Thread 4 (Thread 0x7f8883fff700 (LWP 3336)):
#0  0x00007f8993368414 in g_mutex_unlock () from /usr/lib/libglib-2.0.so.0
#1  0x00007f8993323c36 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007f8993323d8c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007f8997988d1b in QEventDispatcherGlib::processEvents (this=0x7f88780008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f899792effa in QEventLoop::exec (this=this@entry=0x7f8883ffeda0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f899774d1a4 in QThread::exec (this=this@entry=0x7f8b3e0) at thread/qthread.cpp:503
#6  0x00007f899aa27aa5 in QQmlThreadPrivate::run (this=0x7f8b3e0) at qml/ftw/qqmlthread.cpp:141
#7  0x00007f899775208e in QThreadPrivate::start (arg=0x7f8b3e0) at thread/qthread_unix.cpp:337
#8  0x00007f8996664354 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007f8997075bfd in clone () from /usr/lib/libc.so.6

Thread 3 (Thread 0x7f8882ffe700 (LWP 3337)):
#0  0x00007f899706ce8d in poll () from /usr/lib/libc.so.6
#1  0x00007f8993323c7c in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007f8993323d8c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007f8997988d1b in QEventDispatcherGlib::processEvents (this=0x7f88700008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f899792effa in QEventLoop::exec (this=this@entry=0x7f8882ffdda0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f899774d1a4 in QThread::exec (this=this@entry=0x8099270) at thread/qthread.cpp:503
#6  0x00007f899aa27aa5 in QQmlThreadPrivate::run (this=0x8099270) at qml/ftw/qqmlthread.cpp:141
#7  0x00007f899775208e in QThreadPrivate::start (arg=0x8099270) at thread/qthread_unix.cpp:337
#8  0x00007f8996664354 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007f8997075bfd in clone () from /usr/lib/libc.so.6

Thread 2 (Thread 0x7f8881ffd700 (LWP 3338)):
#0  0x00007f8993368414 in g_mutex_unlock () from /usr/lib/libglib-2.0.so.0
#1  0x00007f8993323b2d in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007f8993323d8c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007f8997988d1b in QEventDispatcherGlib::processEvents (this=0x7f88740008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f899792effa in QEventLoop::exec (this=this@entry=0x7f8881ffcda0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f899774d1a4 in QThread::exec (this=this@entry=0x8187ed0) at thread/qthread.cpp:503
#6  0x00007f899aa27aa5 in QQmlThreadPrivate::run (this=0x8187ed0) at qml/ftw/qqmlthread.cpp:141
#7  0x00007f899775208e in QThreadPrivate::start (arg=0x8187ed0) at thread/qthread_unix.cpp:337
#8  0x00007f8996664354 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007f8997075bfd in clone () from /usr/lib/libc.so.6

Thread 1 (Thread 0x7f899d611800 (LWP 3266)):
[KCrash Handler]
#5  brw_meta_fast_clear (brw=brw@entry=0x440cc58, fb=fb@entry=0x94a4160, buffers=buffers@entry=34, partial_clear=partial_clear@entry=false) at brw_meta_fast_clear.c:446
#6  0x00007f897d0b873c in brw_clear (ctx=0x440cc58, mask=34) at brw_clear.c:246
#7  0x00007f899b0c7dba in QSGBatchRenderer::Renderer::renderBatches (this=this@entry=0x70f2e80) at scenegraph/coreapi/qsgbatchrenderer.cpp:2402
#8  0x00007f899b0cc57a in QSGBatchRenderer::Renderer::render (this=<optimized out>) at scenegraph/coreapi/qsgbatchrenderer.cpp:2590
#9  0x00007f899b0d71cc in QSGRenderer::renderScene (this=0x70f2e80, bindable=...) at scenegraph/coreapi/qsgrenderer.cpp:206
#10 0x00007f899b0d764b in QSGRenderer::renderScene (this=<optimized out>, fboId=<optimized out>) at scenegraph/coreapi/qsgrenderer.cpp:168
#11 0x00007f899b0e5d4e in QSGRenderContext::renderNextFrame (this=0x23d4840, renderer=0x70f2e80, fboId=<optimized out>) at scenegraph/qsgcontext.cpp:554
#12 0x00007f899b12f9cc in QQuickWindowPrivate::renderSceneGraph (this=this@entry=0x6885c30, size=...) at items/qquickwindow.cpp:381
#13 0x00007f899b10032c in QSGGuiThreadRenderLoop::renderWindow (this=this@entry=0x2189890, window=0x6888ef0) at scenegraph/qsgrenderloop.cpp:364
#14 0x00007f899b100e51 in QSGGuiThreadRenderLoop::event (this=0x2189890, e=<optimized out>) at scenegraph/qsgrenderloop.cpp:462
#15 0x00007f8998c8862c in QApplicationPrivate::notify_helper (this=this@entry=0x1e83fd0, receiver=receiver@entry=0x2189890, e=e@entry=0x7fff1588cea0) at kernel/qapplication.cpp:3720
#16 0x00007f8998c8dd10 in QApplication::notify (this=0x7fff1588d260, receiver=0x2189890, e=0x7fff1588cea0) at kernel/qapplication.cpp:3503
#17 0x00007f899793157b in QCoreApplication::notifyInternal (this=0x7fff1588d260, receiver=0x2189890, event=event@entry=0x7fff1588cea0) at kernel/qcoreapplication.cpp:935
#18 0x00007f8997987b1d in sendEvent (event=0x7fff1588cea0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:228
#19 QTimerInfoList::activateTimers (this=0x1eb5e60) at kernel/qtimerinfo_unix.cpp:635
#20 0x00007f8997988059 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:177
#21 idleTimerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:224
#22 0x00007f89933239fd in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#23 0x00007f8993323ce0 in ?? () from /usr/lib/libglib-2.0.so.0
#24 0x00007f8993323d8c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#25 0x00007f8997988cff in QEventDispatcherGlib::processEvents (this=0x1ecbbe0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#26 0x00007f899792effa in QEventLoop::exec (this=this@entry=0x7fff1588d0e0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#27 0x00007f8997936a4c in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1188
#28 0x00007f8997e4890c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1507
#29 0x00007f8998c84bf5 in QApplication::exec () at kernel/qapplication.cpp:2956
#30 0x0000000000430538 in main (argc=2, argv=<optimized out>) at /data/k/build/plasma-workspace/src/plasma-workspace-5.3.2/shell/main.cpp:154

Possible duplicates by query: bug 349842, bug 349519.

Reported using DrKonqi