Application: plasmashell (5.17.0)

Qt Version: 5.13.1
Frameworks Version: 5.63.0
Operating System: Linux 4.12.14-lp151.28.20-default x86_64
Distribution: "openSUSE Leap 15.1"

-- Information about the crash:
- What I was doing when the application crashed:
Periodically after turning on the laptop, I see a message about a plasma crach. Sometimes the desktop and panels are not loaded.

The crash can be reproduced sometimes.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7eff0f371540 (LWP 2125))]

Thread 5 (Thread 0x7efee3fff700 (LWP 2339)):
#0  0x00007eff062ec8ad in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007efee90bc92b in ?? () from /usr/lib64/dri/i965_dri.so
#2  0x00007efee90bc637 in ?? () from /usr/lib64/dri/i965_dri.so
#3  0x00007eff062e6569 in start_thread () from /lib64/libpthread.so.0
#4  0x00007eff08a339ef in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7efef1488700 (LWP 2336)):
#0  QMutex::unlock (this=this@entry=0x560ff3537ca0) at thread/qmutex.cpp:335
#1  0x00007eff0937868d in QMutexLocker::unlock (this=<synthetic pointer>) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:219
#2  QMutexLocker::~QMutexLocker (this=<synthetic pointer>, __in_chrg=<optimized out>) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:213
#3  QThreadData::canWaitLocked (this=0x560ff3537c70) at ../../include/QtCore/5.13.1/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:272
#4  postEventSourcePrepare (s=0x7efee4004790, timeout=0x7efef1487ac4) at kernel/qeventdispatcher_glib.cpp:260
#5  0x00007eff02b0d709 in g_main_context_prepare () from /usr/lib64/libglib-2.0.so.0
#6  0x00007eff02b0e0db in ?? () from /usr/lib64/libglib-2.0.so.0
#7  0x00007eff02b0e2bc in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#8  0x00007eff0937877b in QEventDispatcherGlib::processEvents (this=0x7efee4000b10, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#9  0x00007eff09318c4a in QEventLoop::exec (this=this@entry=0x7efef1487c90, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#10 0x00007eff0913410a in QThread::exec (this=<optimized out>) at thread/qthread.cpp:531
#11 0x00007eff0cc48995 in ?? () from /usr/lib64/libQt5Qml.so.5
#12 0x00007eff091358b2 in QThreadPrivate::start (arg=0x560ff3694c30) at thread/qthread_unix.cpp:360
#13 0x00007eff062e6569 in start_thread () from /lib64/libpthread.so.0
#14 0x00007eff08a339ef in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7efef3511700 (LWP 2151)):
#0  0x00007eff08a2919b in poll () from /lib64/libc.so.6
#1  0x00007eff02b0e1a9 in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007eff02b0e2bc in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007eff0937877b in QEventDispatcherGlib::processEvents (this=0x7efeec000b10, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007eff09318c4a in QEventLoop::exec (this=this@entry=0x7efef3510c80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#5  0x00007eff0913410a in QThread::exec (this=<optimized out>) at thread/qthread.cpp:531
#6  0x00007eff0a444db5 in ?? () from /usr/lib64/libQt5DBus.so.5
#7  0x00007eff091358b2 in QThreadPrivate::start (arg=0x7eff0a6bcd80) at thread/qthread_unix.cpp:360
#8  0x00007eff062e6569 in start_thread () from /lib64/libpthread.so.0
#9  0x00007eff08a339ef in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7efef97ed700 (LWP 2137)):
#0  0x00007eff08a2919b in poll () from /lib64/libc.so.6
#1  0x00007eff0dd87307 in ?? () from /usr/lib64/libxcb.so.1
#2  0x00007eff0dd88f3a in xcb_wait_for_event () from /usr/lib64/libxcb.so.1
#3  0x00007efefc1cb940 in ?? () from /usr/lib64/libQt5XcbQpa.so.5
#4  0x00007eff091358b2 in QThreadPrivate::start (arg=0x560ff344edd0) at thread/qthread_unix.cpp:360
#5  0x00007eff062e6569 in start_thread () from /lib64/libpthread.so.0
#6  0x00007eff08a339ef in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7eff0f371540 (LWP 2125)):
[KCrash Handler]
#6  0x00007eff092e1b60 in QSortFilterProxyModelPrivate::build_source_to_proxy_mapping (proxy_to_source=..., source_to_proxy=..., this=0x560ff3943840) at itemmodels/qsortfilterproxymodel.cpp:1184
#7  0x00007eff092e6421 in QSortFilterProxyModelPrivate::sort (this=0x560ff3943840) at itemmodels/qsortfilterproxymodel.cpp:615
#8  0x00007efee0ae8c90 in Image::backgroundsFound (this=0x560ff394b8f0) at /usr/src/debug/plasma5-workspace-5.17.0-lp151.481.1.x86_64/wallpapers/image/image.cpp:641
#9  0x00007eff0934b5cf in QtPrivate::QSlotObjectBase::call (a=0x7ffef9a69960, r=0x560ff394b8f0, this=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:394
#10 QMetaObject::activate (sender=0x560ff391a4d0, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3789
#11 0x00007eff0934c012 in QObject::event (this=0x560ff391a4d0, e=<optimized out>) at kernel/qobject.cpp:1260
#12 0x00007eff0acb603c in QApplicationPrivate::notify_helper (this=this@entry=0x560ff34286b0, receiver=receiver@entry=0x560ff391a4d0, e=e@entry=0x7efed40a2f30) at kernel/qapplication.cpp:3703
#13 0x00007eff0acbd640 in QApplication::notify (this=0x7ffef9a6a080, receiver=0x560ff391a4d0, e=0x7efed40a2f30) at kernel/qapplication.cpp:3449
#14 0x00007eff0931aae8 in QCoreApplication::notifyInternal2 (receiver=0x560ff391a4d0, event=0x7efed40a2f30) at kernel/qcoreapplication.cpp:1095
#15 0x00007eff0931acbe in QCoreApplication::sendEvent (receiver=<optimized out>, event=event@entry=0x7efed40a2f30) at kernel/qcoreapplication.cpp:1490
#16 0x00007eff0931d407 in QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x560ff3404dd0) at kernel/qcoreapplication.cpp:1840
#17 0x00007eff0931d998 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1694
#18 0x00007eff09379143 in postEventSourceDispatch (s=0x560ff347e030) at kernel/qeventdispatcher_glib.cpp:277
#19 0x00007eff02b0de87 in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#20 0x00007eff02b0e230 in ?? () from /usr/lib64/libglib-2.0.so.0
#21 0x00007eff02b0e2bc in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#22 0x00007eff0937875f in QEventDispatcherGlib::processEvents (this=0x560ff3482b60, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#23 0x00007eff09318c4a in QEventLoop::exec (this=this@entry=0x7ffef9a69f30, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#24 0x00007eff09321fc0 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1403
#25 0x0000560ff1ebde3f in main (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/plasma5-workspace-5.17.0-lp151.481.1.x86_64/shell/main.cpp:219
[Inferior 1 (process 2125) detached]

The reporter indicates this bug may be a duplicate of or related to bug 413018.

Possible duplicates by query: bug 413219, bug 413166, bug 413159, bug 413141, bug 413140.

Reported using DrKonqi