Bug 364803

Summary: Plasma crashed while running a python code
Product: [Plasma] plasmashell Reporter: j4kubd0lezal
Component: Task Manager and Icons-Only Task Manager widgetsAssignee: Eike Hein <hein>
Status: RESOLVED FIXED    
Severity: crash CC: bshah, notmart, plasma-bugs-null
Priority: NOR Keywords: drkonqi
Version First Reported In: 5.5.5   
Target Milestone: 1.0   
Platform: openSUSE   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description j4kubd0lezal 2016-06-27 09:31:05 UTC 
Application: plasmashell (5.5.5)

Qt Version: 5.5.1
Operating System: Linux 4.1.26-21-default x86_64
Distribution: "openSUSE Leap 42.1 (x86_64)"

-- Information about the crash:
- What I was doing when the application crashed:
Running a python code. It might have overloaded the memory.

The crash does not seem to be reproducible.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f421bb437c0 (LWP 1675))]

Thread 16 (Thread 0x7f42055a2700 (LWP 1676)):
#0  0x00007f4215043bbd in poll () from /lib64/libc.so.6
#1  0x00007f4219f97422 in ?? () from /usr/lib64/libxcb.so.1
#2  0x00007f4219f9900f in xcb_wait_for_event () from /usr/lib64/libxcb.so.1
#3  0x00007f42076f33c9 in QXcbEventReader::run (this=0x8e5210) at qxcbconnection.cpp:1229
#4  0x00007f421573e32f in QThreadPrivate::start (arg=0x8e5210) at thread/qthread_unix.cpp:331
#5  0x00007f421484d0a4 in start_thread () from /lib64/libpthread.so.0
#6  0x00007f421504bfed in clone () from /lib64/libc.so.6

Thread 15 (Thread 0x7f41fe93b700 (LWP 1690)):
#0  0x00007f4211762d14 in g_mutex_unlock () from /usr/lib64/libglib-2.0.so.0
#1  0x00007f4211720f86 in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f4215970d8b in QEventDispatcherGlib::processEvents (this=0x7f41f80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#3  0x00007f4215917d53 in QEventLoop::exec (this=this@entry=0x7f41fe93adf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#4  0x00007f421573961a in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#5  0x00007f4218a4de18 in ?? () from /usr/lib64/libQt5Qml.so.5
#6  0x00007f421573e32f in QThreadPrivate::start (arg=0x9b5bf0) at thread/qthread_unix.cpp:331
#7  0x00007f421484d0a4 in start_thread () from /lib64/libpthread.so.0
#8  0x00007f421504bfed in clone () from /lib64/libc.so.6

Thread 14 (Thread 0x7f41f1226700 (LWP 1699)):
#0  0x00007f42116f65d5 in g_ptr_array_set_size () from /usr/lib64/libglib-2.0.so.0
#1  0x00007f4211720401 in g_main_context_prepare () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f4211720d80 in ?? () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f4211720f7c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#4  0x00007f4215970d8b in QEventDispatcherGlib::processEvents (this=0x7f41ec0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f4215917d53 in QEventLoop::exec (this=this@entry=0x7f41f1225df0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f421573961a in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f4218a4de18 in ?? () from /usr/lib64/libQt5Qml.so.5
#8  0x00007f421573e32f in QThreadPrivate::start (arg=0xb1e360) at thread/qthread_unix.cpp:331
#9  0x00007f421484d0a4 in start_thread () from /lib64/libpthread.so.0
#10 0x00007f421504bfed in clone () from /lib64/libc.so.6

Thread 13 (Thread 0x7f41eba79700 (LWP 1710)):
#0  0x00007f4211762d14 in g_mutex_unlock () from /usr/lib64/libglib-2.0.so.0
#1  0x00007f42117204a0 in g_main_context_prepare () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f4211720d80 in ?? () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f4211720f7c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#4  0x00007f4215970d8b in QEventDispatcherGlib::processEvents (this=0x7f41e40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f4215917d53 in QEventLoop::exec (this=this@entry=0x7f41eba78df0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f421573961a in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f4218a4de18 in ?? () from /usr/lib64/libQt5Qml.so.5
#8  0x00007f421573e32f in QThreadPrivate::start (arg=0xd46530) at thread/qthread_unix.cpp:331
#9  0x00007f421484d0a4 in start_thread () from /lib64/libpthread.so.0
#10 0x00007f421504bfed in clone () from /lib64/libc.so.6

Thread 12 (Thread 0x7f41ea147700 (LWP 1711)):
#0  0x00007f421485103f in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f421b21c86b in ?? () from /usr/lib64/libQt5Script.so.5
#2  0x00007f421b21c899 in ?? () from /usr/lib64/libQt5Script.so.5
#3  0x00007f421484d0a4 in start_thread () from /lib64/libpthread.so.0
#4  0x00007f421504bfed in clone () from /lib64/libc.so.6

Thread 11 (Thread 0x7f4162aa6700 (LWP 1806)):
#0  0x00007f4211720463 in g_main_context_prepare () from /usr/lib64/libglib-2.0.so.0
#1  0x00007f4211720d80 in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f4211720f7c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f4215970d8b in QEventDispatcherGlib::processEvents (this=0x7f415c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f4215917d53 in QEventLoop::exec (this=this@entry=0x7f4162aa5db0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f421573961a in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f42195e9282 in ?? () from /usr/lib64/libQt5Quick.so.5
#7  0x00007f421573e32f in QThreadPrivate::start (arg=0x1224c50) at thread/qthread_unix.cpp:331
#8  0x00007f421484d0a4 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f421504bfed in clone () from /lib64/libc.so.6

Thread 10 (Thread 0x7f4151c79700 (LWP 1951)):
#0  0x00007f4215043bbd in poll () from /lib64/libc.so.6
#1  0x00007f4211720e64 in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f4211720f7c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f4215970d8b in QEventDispatcherGlib::processEvents (this=0x7f414c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f4215917d53 in QEventLoop::exec (this=this@entry=0x7f4151c78dd0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f421573961a in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f41532c6cf7 in KCupsConnection::run() () from /usr/lib64/libkcupslib.so
#7  0x00007f421573e32f in QThreadPrivate::start (arg=0x398cc40) at thread/qthread_unix.cpp:331
#8  0x00007f421484d0a4 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f421504bfed in clone () from /lib64/libc.so.6

Thread 9 (Thread 0x7f4146e5b700 (LWP 3804)):
#0  0x00007f421485103f in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f421573f34b in wait (time=18446744073709551615, this=0x3f3fe40) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x4ee5980, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f415b57965f in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () from /usr/lib64/libKF5ThreadWeaver.so.5
#4  0x00007f415b57d43a in ?? () from /usr/lib64/libKF5ThreadWeaver.so.5
#5  0x00007f415b5776cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib64/libKF5ThreadWeaver.so.5
#6  0x00007f415b57d481 in ?? () from /usr/lib64/libKF5ThreadWeaver.so.5
#7  0x00007f415b5776cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib64/libKF5ThreadWeaver.so.5
#8  0x00007f415b57d481 in ?? () from /usr/lib64/libKF5ThreadWeaver.so.5
#9  0x00007f415b5776cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib64/libKF5ThreadWeaver.so.5
#10 0x00007f415b57d481 in ?? () from /usr/lib64/libKF5ThreadWeaver.so.5
#11 0x00007f415b5776cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib64/libKF5ThreadWeaver.so.5
#12 0x00007f415b57d481 in ?? () from /usr/lib64/libKF5ThreadWeaver.so.5
#13 0x00007f415b5776cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib64/libKF5ThreadWeaver.so.5
#14 0x00007f415b57d481 in ?? () from /usr/lib64/libKF5ThreadWeaver.so.5
#15 0x00007f415b5776cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib64/libKF5ThreadWeaver.so.5
#16 0x00007f415b57d481 in ?? () from /usr/lib64/libKF5ThreadWeaver.so.5
#17 0x00007f415b5776cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib64/libKF5ThreadWeaver.so.5
#18 0x00007f415b57b005 in ThreadWeaver::Thread::run() () from /usr/lib64/libKF5ThreadWeaver.so.5
#19 0x00007f421573e32f in QThreadPrivate::start (arg=0x4e121b0) at thread/qthread_unix.cpp:331
#20 0x00007f421484d0a4 in start_thread () from /lib64/libpthread.so.0
#21 0x00007f421504bfed in clone () from /lib64/libc.so.6

Thread 8 (Thread 0x7f413ffff700 (LWP 3805)):
#0  0x00007f421485103f in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f421573f34b in wait (time=18446744073709551615, this=0x3f3fe40) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x4ee5980, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f415b57965f in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () from /usr/lib64/libKF5ThreadWeaver.so.5
#4  0x00007f415b57d43a in ?? () from /usr/lib64/libKF5ThreadWeaver.so.5
#5  0x00007f415b5776cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib64/libKF5ThreadWeaver.so.5
#6  0x00007f415b57d481 in ?? () from /usr/lib64/libKF5ThreadWeaver.so.5
#7  0x00007f415b5776cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib64/libKF5ThreadWeaver.so.5
#8  0x00007f415b57d481 in ?? () from /usr/lib64/libKF5ThreadWeaver.so.5
#9  0x00007f415b5776cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib64/libKF5ThreadWeaver.so.5
#10 0x00007f415b57d481 in ?? () from /usr/lib64/libKF5ThreadWeaver.so.5
#11 0x00007f415b5776cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib64/libKF5ThreadWeaver.so.5
#12 0x00007f415b57d481 in ?? () from /usr/lib64/libKF5ThreadWeaver.so.5
#13 0x00007f415b5776cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib64/libKF5ThreadWeaver.so.5
#14 0x00007f415b57d481 in ?? () from /usr/lib64/libKF5ThreadWeaver.so.5
#15 0x00007f415b5776cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib64/libKF5ThreadWeaver.so.5
#16 0x00007f415b57d481 in ?? () from /usr/lib64/libKF5ThreadWeaver.so.5
#17 0x00007f415b5776cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib64/libKF5ThreadWeaver.so.5
#18 0x00007f415b57d481 in ?? () from /usr/lib64/libKF5ThreadWeaver.so.5
#19 0x00007f415b5776cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib64/libKF5ThreadWeaver.so.5
#20 0x00007f415b57d481 in ?? () from /usr/lib64/libKF5ThreadWeaver.so.5
#21 0x00007f415b5776cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib64/libKF5ThreadWeaver.so.5
#22 0x00007f415b57d481 in ?? () from /usr/lib64/libKF5ThreadWeaver.so.5
#23 0x00007f415b5776cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib64/libKF5ThreadWeaver.so.5
#24 0x00007f415b57d481 in ?? () from /usr/lib64/libKF5ThreadWeaver.so.5
#25 0x00007f415b5776cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib64/libKF5ThreadWeaver.so.5
#26 0x00007f415b57b005 in ThreadWeaver::Thread::run() () from /usr/lib64/libKF5ThreadWeaver.so.5
#27 0x00007f421573e32f in QThreadPrivate::start (arg=0x519c050) at thread/qthread_unix.cpp:331
#28 0x00007f421484d0a4 in start_thread () from /lib64/libpthread.so.0
#29 0x00007f421504bfed in clone () from /lib64/libc.so.6

Thread 7 (Thread 0x7f41372ff700 (LWP 3806)):
#0  0x00007f421485103f in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f421573f34b in wait (time=18446744073709551615, this=0x3f3fe40) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x4ee5980, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f415b57965f in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () from /usr/lib64/libKF5ThreadWeaver.so.5
#4  0x00007f415b57d43a in ?? () from /usr/lib64/libKF5ThreadWeaver.so.5
#5  0x00007f415b5776cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib64/libKF5ThreadWeaver.so.5
#6  0x00007f415b57d481 in ?? () from /usr/lib64/libKF5ThreadWeaver.so.5
#7  0x00007f415b5776cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib64/libKF5ThreadWeaver.so.5
#8  0x00007f415b57b005 in ThreadWeaver::Thread::run() () from /usr/lib64/libKF5ThreadWeaver.so.5
#9  0x00007f421573e32f in QThreadPrivate::start (arg=0x7f414000b3f0) at thread/qthread_unix.cpp:331
#10 0x00007f421484d0a4 in start_thread () from /lib64/libpthread.so.0
#11 0x00007f421504bfed in clone () from /lib64/libc.so.6

Thread 6 (Thread 0x7f4136afe700 (LWP 3807)):
#0  0x00007f421485103f in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f421573f34b in wait (time=18446744073709551615, this=0x3f3fe40) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x4ee5980, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f415b57965f in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () from /usr/lib64/libKF5ThreadWeaver.so.5
#4  0x00007f415b57d43a in ?? () from /usr/lib64/libKF5ThreadWeaver.so.5
#5  0x00007f415b5776cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib64/libKF5ThreadWeaver.so.5
#6  0x00007f415b57d481 in ?? () from /usr/lib64/libKF5ThreadWeaver.so.5
#7  0x00007f415b5776cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib64/libKF5ThreadWeaver.so.5
#8  0x00007f415b57d481 in ?? () from /usr/lib64/libKF5ThreadWeaver.so.5
#9  0x00007f415b5776cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib64/libKF5ThreadWeaver.so.5
#10 0x00007f415b57d481 in ?? () from /usr/lib64/libKF5ThreadWeaver.so.5
#11 0x00007f415b5776cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib64/libKF5ThreadWeaver.so.5
#12 0x00007f415b57d481 in ?? () from /usr/lib64/libKF5ThreadWeaver.so.5
#13 0x00007f415b5776cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib64/libKF5ThreadWeaver.so.5
#14 0x00007f415b57b005 in ThreadWeaver::Thread::run() () from /usr/lib64/libKF5ThreadWeaver.so.5
#15 0x00007f421573e32f in QThreadPrivate::start (arg=0x499d7e0) at thread/qthread_unix.cpp:331
#16 0x00007f421484d0a4 in start_thread () from /lib64/libpthread.so.0
#17 0x00007f421504bfed in clone () from /lib64/libc.so.6

Thread 5 (Thread 0x7f41362fd700 (LWP 3808)):
#0  0x00007f421485103f in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f421573f34b in wait (time=18446744073709551615, this=0x3f3fe40) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x4ee5980, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f415b57965f in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () from /usr/lib64/libKF5ThreadWeaver.so.5
#4  0x00007f415b57d43a in ?? () from /usr/lib64/libKF5ThreadWeaver.so.5
#5  0x00007f415b5776cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib64/libKF5ThreadWeaver.so.5
#6  0x00007f415b57d481 in ?? () from /usr/lib64/libKF5ThreadWeaver.so.5
#7  0x00007f415b5776cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib64/libKF5ThreadWeaver.so.5
#8  0x00007f415b57d481 in ?? () from /usr/lib64/libKF5ThreadWeaver.so.5
#9  0x00007f415b5776cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib64/libKF5ThreadWeaver.so.5
#10 0x00007f415b57d481 in ?? () from /usr/lib64/libKF5ThreadWeaver.so.5
#11 0x00007f415b5776cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib64/libKF5ThreadWeaver.so.5
#12 0x00007f415b57d481 in ?? () from /usr/lib64/libKF5ThreadWeaver.so.5
#13 0x00007f415b5776cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib64/libKF5ThreadWeaver.so.5
#14 0x00007f415b57d481 in ?? () from /usr/lib64/libKF5ThreadWeaver.so.5
#15 0x00007f415b5776cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib64/libKF5ThreadWeaver.so.5
#16 0x00007f415b57b005 in ThreadWeaver::Thread::run() () from /usr/lib64/libKF5ThreadWeaver.so.5
#17 0x00007f421573e32f in QThreadPrivate::start (arg=0x7f4138009ad0) at thread/qthread_unix.cpp:331
#18 0x00007f421484d0a4 in start_thread () from /lib64/libpthread.so.0
#19 0x00007f421504bfed in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7f4135afc700 (LWP 3809)):
#0  0x00007f421485103f in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f421573f34b in wait (time=18446744073709551615, this=0x3f3fe40) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x4ee5980, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f415b57965f in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () from /usr/lib64/libKF5ThreadWeaver.so.5
#4  0x00007f415b57d43a in ?? () from /usr/lib64/libKF5ThreadWeaver.so.5
#5  0x00007f415b5776cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib64/libKF5ThreadWeaver.so.5
#6  0x00007f415b57d481 in ?? () from /usr/lib64/libKF5ThreadWeaver.so.5
#7  0x00007f415b5776cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib64/libKF5ThreadWeaver.so.5
#8  0x00007f415b57b005 in ThreadWeaver::Thread::run() () from /usr/lib64/libKF5ThreadWeaver.so.5
#9  0x00007f421573e32f in QThreadPrivate::start (arg=0x7f4130002b90) at thread/qthread_unix.cpp:331
#10 0x00007f421484d0a4 in start_thread () from /lib64/libpthread.so.0
#11 0x00007f421504bfed in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7f41352fb700 (LWP 3810)):
#0  0x00007f421485103f in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f421573f34b in wait (time=18446744073709551615, this=0x3f3fe40) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x4ee5980, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f415b57965f in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () from /usr/lib64/libKF5ThreadWeaver.so.5
#4  0x00007f415b57d43a in ?? () from /usr/lib64/libKF5ThreadWeaver.so.5
#5  0x00007f415b5776cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib64/libKF5ThreadWeaver.so.5
#6  0x00007f415b57d481 in ?? () from /usr/lib64/libKF5ThreadWeaver.so.5
#7  0x00007f415b5776cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib64/libKF5ThreadWeaver.so.5
#8  0x00007f415b57d481 in ?? () from /usr/lib64/libKF5ThreadWeaver.so.5
#9  0x00007f415b5776cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib64/libKF5ThreadWeaver.so.5
#10 0x00007f415b57d481 in ?? () from /usr/lib64/libKF5ThreadWeaver.so.5
#11 0x00007f415b5776cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib64/libKF5ThreadWeaver.so.5
#12 0x00007f415b57d481 in ?? () from /usr/lib64/libKF5ThreadWeaver.so.5
#13 0x00007f415b5776cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib64/libKF5ThreadWeaver.so.5
#14 0x00007f415b57b005 in ThreadWeaver::Thread::run() () from /usr/lib64/libKF5ThreadWeaver.so.5
#15 0x00007f421573e32f in QThreadPrivate::start (arg=0x7f41380023f0) at thread/qthread_unix.cpp:331
#16 0x00007f421484d0a4 in start_thread () from /lib64/libpthread.so.0
#17 0x00007f421504bfed in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7f4134afa700 (LWP 3811)):
#0  0x00007f421485103f in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f421573f34b in wait (time=18446744073709551615, this=0x3f3fe40) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x4ee5980, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f415b57965f in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () from /usr/lib64/libKF5ThreadWeaver.so.5
#4  0x00007f415b57d43a in ?? () from /usr/lib64/libKF5ThreadWeaver.so.5
#5  0x00007f415b5776cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib64/libKF5ThreadWeaver.so.5
#6  0x00007f415b57d481 in ?? () from /usr/lib64/libKF5ThreadWeaver.so.5
#7  0x00007f415b5776cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib64/libKF5ThreadWeaver.so.5
#8  0x00007f415b57b005 in ThreadWeaver::Thread::run() () from /usr/lib64/libKF5ThreadWeaver.so.5
#9  0x00007f421573e32f in QThreadPrivate::start (arg=0x7f412c003190) at thread/qthread_unix.cpp:331
#10 0x00007f421484d0a4 in start_thread () from /lib64/libpthread.so.0
#11 0x00007f421504bfed in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f421bb437c0 (LWP 1675)):
[KCrash Handler]
#6  0x00007f4215e6f884 in QWindow::isTopLevel (this=this@entry=0x7f42159d2b40 <QHashData::shared_null>) at kernel/qwindow.cpp:630
#7  0x00007f4215e6ffe7 in QWindow::setTransientParent (this=0xa5b8ab0, parent=parent@entry=0x7f42159d2b40 <QHashData::shared_null>) at kernel/qwindow.cpp:1156
#8  0x00007f415a54654c in operator() (__closure=0x7ffe7bb14f20) at /usr/src/debug/plasma-desktop-5.5.5/applets/taskmanager/plugin/backend.cpp:351
#9  call (arg=<optimized out>, f=...) at /usr/include/qt5/QtCore/qobjectdefs_impl.h:495
#10 call<QtPrivate::List<>, void> (arg=<optimized out>, f=...) at /usr/include/qt5/QtCore/qobjectdefs_impl.h:552
#11 QtPrivate::QFunctorSlotObject<Backend::itemContextMenu(QQuickItem*, QObject*)::__lambda0, 0, QtPrivate::List<>, void>::impl(int, QtPrivate::QSlotObjectBase *, QObject *, void **, bool *) (which=<optimized out>, this_=<optimized out>, r=<optimized out>, a=<optimized out>, ret=<optimized out>) at /usr/include/qt5/QtCore/qobject_impl.h:192
#12 0x00007f4215956c48 in call (a=0x7ffe7bb14fa0, r=<optimized out>, this=<optimized out>) at ../../src/corelib/kernel/qobject_impl.h:124
#13 QSingleShotTimer::timerEvent (this=0x9bef830) at kernel/qtimer.cpp:315
#14 0x00007f421594a8bc in QObject::event (this=0x9bef830, e=<optimized out>) at kernel/qobject.cpp:1220
#15 0x00007f4216c94e7c in QApplicationPrivate::notify_helper (this=this@entry=0x8ca390, receiver=receiver@entry=0x9bef830, e=e@entry=0x7ffe7bb15340) at kernel/qapplication.cpp:3716
#16 0x00007f4216c99cc8 in QApplication::notify (this=0x7ffe7bb156f0, receiver=0x9bef830, e=0x7ffe7bb15340) at kernel/qapplication.cpp:3499
#17 0x00007f4215919e95 in QCoreApplication::notifyInternal (this=0x7ffe7bb156f0, receiver=0x9bef830, event=event@entry=0x7ffe7bb15340) at kernel/qcoreapplication.cpp:965
#18 0x00007f421597077d in sendEvent (event=0x7ffe7bb15340, receiver=<optimized out>) at ../../src/corelib/kernel/qcoreapplication.h:224
#19 QTimerInfoList::activateTimers (this=0x9042f0) at kernel/qtimerinfo_unix.cpp:637
#20 0x00007f4215970aa1 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:177
#21 0x00007f4211720c84 in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#22 0x00007f4211720ed8 in ?? () from /usr/lib64/libglib-2.0.so.0
#23 0x00007f4211720f7c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#24 0x00007f4215970d6c in QEventDispatcherGlib::processEvents (this=0x906c10, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#25 0x00007f4215917d53 in QEventLoop::exec (this=this@entry=0x7ffe7bb15580, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#26 0x00007f421591f8f6 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1229
#27 0x00007f4215e638ec in QGuiApplication::exec () at kernel/qguiapplication.cpp:1529
#28 0x00007f4216c91605 in QApplication::exec () at kernel/qapplication.cpp:2976
#29 0x0000000000436b3d in main (argc=2, argv=<optimized out>) at /usr/src/debug/plasma-workspace-5.5.5/shell/main.cpp:184

Reported using DrKonqi
Comment 1 Marco Martin 2016-06-30 10:00:34 UTC 
should be fixed with new backend
Comment 2 Eike Hein 2016-06-30 10:12:14 UTC 
Yes, this is in the fully-rewritten context menu code.