Bug 355059

Application: plasmashell (5.4.2)

Qt Version: 5.5.1
Operating System: Linux 4.1.6-gentoo x86_64
Distribution: "Gentoo Base System release 2.2"

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

this crash appeared after after I disconnected my external monitor

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f7aab39f880 (LWP 3595))]

Thread 16 (Thread 0x7f7aa903c700 (LWP 3598)):
#0  0x00007f7ab97bd64d in poll () from /lib64/libc.so.6
#1  0x00007f7abd74dac2 in ?? () from /usr/lib64/libxcb.so.1
#2  0x00007f7abd74f72f in xcb_wait_for_event () from /usr/lib64/libxcb.so.1
#3  0x00007f7aaaf99c89 in QXcbEventReader::run (this=0x13e77d0) at qxcbconnection.cpp:1229
#4  0x00007f7ab9e2a4f2 in QThreadPrivate::start (arg=0x13e77d0) at thread/qthread_unix.cpp:331
#5  0x00007f7ab8fcd444 in start_thread () from /lib64/libpthread.so.0
#6  0x00007f7ab97c66ad in clone () from /lib64/libc.so.6

Thread 15 (Thread 0x7f7aa23b2700 (LWP 3626)):
#0  0x00007f7ab5813264 in g_mutex_unlock () from /usr/lib64/libglib-2.0.so.0
#1  0x00007f7ab57ce3a9 in g_main_context_query () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f7ab57ceae7 in ?? () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f7ab57cec7c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#4  0x00007f7aba02503c in QEventDispatcherGlib::processEvents (this=0x7f7a9c0008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f7ab9fd627a in QEventLoop::exec (this=this@entry=0x7f7aa23b1d20, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f7ab9e25a84 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f7abc5ee355 in ?? () from /usr/lib64/libQt5Qml.so.5
#8  0x00007f7ab9e2a4f2 in QThreadPrivate::start (arg=0x14d0360) at thread/qthread_unix.cpp:331
#9  0x00007f7ab8fcd444 in start_thread () from /lib64/libpthread.so.0
#10 0x00007f7ab97c66ad in clone () from /lib64/libc.so.6

Thread 14 (Thread 0x7f7a98985700 (LWP 3651)):
#0  0x00007f7ab5813262 in g_mutex_unlock () from /usr/lib64/libglib-2.0.so.0
#1  0x00007f7ab57cdb0e in g_main_context_acquire () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f7ab57cea25 in ?? () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f7ab57cec7c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#4  0x00007f7aba02503c in QEventDispatcherGlib::processEvents (this=0x7f7a940008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f7ab9fd627a in QEventLoop::exec (this=this@entry=0x7f7a98984d20, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f7ab9e25a84 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f7abc5ee355 in ?? () from /usr/lib64/libQt5Qml.so.5
#8  0x00007f7ab9e2a4f2 in QThreadPrivate::start (arg=0x17f1180) at thread/qthread_unix.cpp:331
#9  0x00007f7ab8fcd444 in start_thread () from /lib64/libpthread.so.0
#10 0x00007f7ab97c66ad in clone () from /lib64/libc.so.6

Thread 13 (Thread 0x7f7a92606700 (LWP 3669)):
#0  0x00007f7ab97b962d in read () from /lib64/libc.so.6
#1  0x00007f7ab240af45 in ?? () from /usr/lib64/libnvidia-tls.so.346.96
#2  0x00007f7ab5811da0 in ?? () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f7ab57ce61c in g_main_context_check () from /usr/lib64/libglib-2.0.so.0
#4  0x00007f7ab57ceb10 in ?? () from /usr/lib64/libglib-2.0.so.0
#5  0x00007f7ab57cec7c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#6  0x00007f7aba02503c in QEventDispatcherGlib::processEvents (this=0x7f7a8c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#7  0x00007f7ab9fd627a in QEventLoop::exec (this=this@entry=0x7f7a92605d20, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#8  0x00007f7ab9e25a84 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#9  0x00007f7abc5ee355 in ?? () from /usr/lib64/libQt5Qml.so.5
#10 0x00007f7ab9e2a4f2 in QThreadPrivate::start (arg=0x197eb50) at thread/qthread_unix.cpp:331
#11 0x00007f7ab8fcd444 in start_thread () from /lib64/libpthread.so.0
#12 0x00007f7ab97c66ad in clone () from /lib64/libc.so.6

Thread 12 (Thread 0x7f7a90d1c700 (LWP 3699)):
#0  0x00007f7ab8fd300f in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f7abe9b4834 in ?? () from /usr/lib64/libQt5Script.so.5
#2  0x00007f7abe9b4879 in ?? () from /usr/lib64/libQt5Script.so.5
#3  0x00007f7ab8fcd444 in start_thread () from /lib64/libpthread.so.0
#4  0x00007f7ab97c66ad in clone () from /lib64/libc.so.6

Thread 11 (Thread 0x7f7a0981d700 (LWP 3776)):
#0  0x00007f7ab97bd64d in poll () from /lib64/libc.so.6
#1  0x00007f7ab57ceb6c in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f7ab57cec7c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f7aba02503c in QEventDispatcherGlib::processEvents (this=0x7f7a040008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f7ab9fd627a in QEventLoop::exec (this=this@entry=0x7f7a0981ccd0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f7ab9e25a84 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f7abcf80b06 in ?? () from /usr/lib64/libQt5Quick.so.5
#7  0x00007f7ab9e2a4f2 in QThreadPrivate::start (arg=0x1eeac30) at thread/qthread_unix.cpp:331
#8  0x00007f7ab8fcd444 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f7ab97c66ad in clone () from /lib64/libc.so.6

Thread 10 (Thread 0x7f79f7948700 (LWP 3892)):
#0  0x00007f7ab97b962d in read () from /lib64/libc.so.6
#1  0x00007f7ab240af45 in ?? () from /usr/lib64/libnvidia-tls.so.346.96
#2  0x00007f7ab5811da0 in ?? () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f7ab57ce61c in g_main_context_check () from /usr/lib64/libglib-2.0.so.0
#4  0x00007f7ab57ceb10 in ?? () from /usr/lib64/libglib-2.0.so.0
#5  0x00007f7ab57cec7c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#6  0x00007f7aba02503c in QEventDispatcherGlib::processEvents (this=0x7f79f00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#7  0x00007f7ab9fd627a in QEventLoop::exec (this=this@entry=0x7f79f7947d00, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#8  0x00007f7ab9e25a84 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#9  0x00007f79f87f1a87 in KCupsConnection::run() () from /usr/lib64/libkcupslib.so
#10 0x00007f7ab9e2a4f2 in QThreadPrivate::start (arg=0x287b140) at thread/qthread_unix.cpp:331
#11 0x00007f7ab8fcd444 in start_thread () from /lib64/libpthread.so.0
#12 0x00007f7ab97c66ad in clone () from /lib64/libc.so.6

Thread 9 (Thread 0x7f79e8fbd700 (LWP 3964)):
#0  0x00007f7ab8fd300f in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f7ab9e2ab7a in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x3048300) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x31305c0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f7abcff43f3 in ?? () from /usr/lib64/libQt5Quick.so.5
#4  0x00007f7abcff47f0 in ?? () from /usr/lib64/libQt5Quick.so.5
#5  0x00007f7ab9e2a4f2 in QThreadPrivate::start (arg=0x3130540) at thread/qthread_unix.cpp:331
#6  0x00007f7ab8fcd444 in start_thread () from /lib64/libpthread.so.0
#7  0x00007f7ab97c66ad in clone () from /lib64/libc.so.6

Thread 8 (Thread 0x7f79e97be700 (LWP 6458)):
#0  0x00007f7ab8fd300f in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f7ab9e2ab7a in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x34e50c0) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x347a310, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f7abcff43f3 in ?? () from /usr/lib64/libQt5Quick.so.5
#4  0x00007f7abcff47f0 in ?? () from /usr/lib64/libQt5Quick.so.5
#5  0x00007f7ab9e2a4f2 in QThreadPrivate::start (arg=0x347a290) at thread/qthread_unix.cpp:331
#6  0x00007f7ab8fcd444 in start_thread () from /lib64/libpthread.so.0
#7  0x00007f7ab97c66ad in clone () from /lib64/libc.so.6

Thread 7 (Thread 0x7f79dfbfe700 (LWP 7913)):
#0  0x00007f7ab8fd300f in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f7ab9e2ab7a in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x308afb0) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x3708660, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f7abcff43f3 in ?? () from /usr/lib64/libQt5Quick.so.5
#4  0x00007f7abcff47f0 in ?? () from /usr/lib64/libQt5Quick.so.5
#5  0x00007f7ab9e2a4f2 in QThreadPrivate::start (arg=0x37085e0) at thread/qthread_unix.cpp:331
#6  0x00007f7ab8fcd444 in start_thread () from /lib64/libpthread.so.0
#7  0x00007f7ab97c66ad in clone () from /lib64/libc.so.6

Thread 6 (Thread 0x7f79df1fd700 (LWP 8472)):
#0  0x00007f7ab8fd300f in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f7ab9e2ab7a in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x244c640) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x3358800, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f7abcff43f3 in ?? () from /usr/lib64/libQt5Quick.so.5
#4  0x00007f7abcff47f0 in ?? () from /usr/lib64/libQt5Quick.so.5
#5  0x00007f7ab9e2a4f2 in QThreadPrivate::start (arg=0x3358780) at thread/qthread_unix.cpp:331
#6  0x00007f7ab8fcd444 in start_thread () from /lib64/libpthread.so.0
#7  0x00007f7ab97c66ad in clone () from /lib64/libc.so.6

Thread 5 (Thread 0x7f79de6fc700 (LWP 8765)):
#0  0x00007f7ab8fd300f in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f7ab9e2ab7a in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x369f6f0) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x3ab1bc0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f7abcff43f3 in ?? () from /usr/lib64/libQt5Quick.so.5
#4  0x00007f7abcff47f0 in ?? () from /usr/lib64/libQt5Quick.so.5
#5  0x00007f7ab9e2a4f2 in QThreadPrivate::start (arg=0x3ab1b40) at thread/qthread_unix.cpp:331
#6  0x00007f7ab8fcd444 in start_thread () from /lib64/libpthread.so.0
#7  0x00007f7ab97c66ad in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7f79ddb72700 (LWP 9435)):
#0  0x00007f7ab8fd300f in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f7ab9e2ab7a in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x3aa1860) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x4333bc0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f7abcff43f3 in ?? () from /usr/lib64/libQt5Quick.so.5
#4  0x00007f7abcff47f0 in ?? () from /usr/lib64/libQt5Quick.so.5
#5  0x00007f7ab9e2a4f2 in QThreadPrivate::start (arg=0x4333b40) at thread/qthread_unix.cpp:331
#6  0x00007f7ab8fcd444 in start_thread () from /lib64/libpthread.so.0
#7  0x00007f7ab97c66ad in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7f79dcd25700 (LWP 20548)):
#0  0x00007f7ab8fd300f in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f7ab9e2ab7a in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x46a6710) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x43f6870, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f7abcff43f3 in ?? () from /usr/lib64/libQt5Quick.so.5
#4  0x00007f7abcff47f0 in ?? () from /usr/lib64/libQt5Quick.so.5
#5  0x00007f7ab9e2a4f2 in QThreadPrivate::start (arg=0x43f67f0) at thread/qthread_unix.cpp:331
#6  0x00007f7ab8fcd444 in start_thread () from /lib64/libpthread.so.0
#7  0x00007f7ab97c66ad in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7f79befff700 (LWP 23424)):
#0  0x00007f7ab8fd300f in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f7ab9e2ab7a in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x436efd0) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x4406d30, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f7abcff43f3 in ?? () from /usr/lib64/libQt5Quick.so.5
#4  0x00007f7abcff47f0 in ?? () from /usr/lib64/libQt5Quick.so.5
#5  0x00007f7ab9e2a4f2 in QThreadPrivate::start (arg=0x4406cb0) at thread/qthread_unix.cpp:331
#6  0x00007f7ab8fcd444 in start_thread () from /lib64/libpthread.so.0
#7  0x00007f7ab97c66ad in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f7aab39f880 (LWP 3595)):
[KCrash Handler]
#6  QScreen::refreshRate (this=0x0) at kernel/qscreen.cpp:463
#7  0x00007f7abcff4fb8 in ?? () from /usr/lib64/libQt5Quick.so.5
#8  0x00007f7abcff5050 in ?? () from /usr/lib64/libQt5Quick.so.5
#9  0x00007f7ab9fff894 in QMetaObject::activate (sender=0x1620080, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3713
#10 0x00007f7ab9e072ce in QUnifiedTimer::startAnimationDriver (this=0x1625920) at animation/qabstractanimation.cpp:279
#11 0x00007f7ab9e085a9 in QUnifiedTimer::startTimers (this=0x1625920) at animation/qabstractanimation.cpp:400
#12 0x00007f7aba00094a in QObject::event (this=0x1625920, e=<optimized out>) at kernel/qobject.cpp:1239
#13 0x00007f7abaa3b69c in QApplicationPrivate::notify_helper (this=this@entry=0x13c1de0, receiver=receiver@entry=0x1625920, e=e@entry=0x1816100) at kernel/qapplication.cpp:3716
#14 0x00007f7abaa40b10 in QApplication::notify (this=0x7ffc3786cb90, receiver=0x1625920, e=0x1816100) at kernel/qapplication.cpp:3499
#15 0x00007f7ab9fd765d in QCoreApplication::notifyInternal (this=0x7ffc3786cb90, receiver=0x1625920, event=event@entry=0x1816100) at kernel/qcoreapplication.cpp:965
#16 0x00007f7ab9fda423 in QCoreApplication::sendEvent (event=0x1816100, receiver=<optimized out>) at kernel/qcoreapplication.h:224
#17 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x13b7750) at kernel/qcoreapplication.cpp:1593
#18 0x00007f7ab9fda9e8 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1451
#19 0x00007f7aba024fb3 in postEventSourceDispatch (s=0x1413ac0) at kernel/qeventdispatcher_glib.cpp:271
#20 0x00007f7ab57ce8ed in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#21 0x00007f7ab57cebd0 in ?? () from /usr/lib64/libglib-2.0.so.0
#22 0x00007f7ab57cec7c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#23 0x00007f7aba025027 in QEventDispatcherGlib::processEvents (this=0x14120e0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#24 0x00007f7ab9fd627a in QEventLoop::exec (this=this@entry=0x7ffc3786ca10, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#25 0x00007f7ab9fdd64c in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1229
#26 0x0000000000431906 in main ()

Possible duplicates by query: bug 354980, bug 352507.

Reported using DrKonqi