Bug 358598

Application: plasmashell (5.5.3)

Qt Version: 5.5.1
Operating System: Linux 4.4.0-1-default x86_64
Distribution: "openSUSE Tumbleweed (20160117) (x86_64)"

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

Plasma Shell crashed after pluging in USB 3.0 Hard Drive. I did not click anything. Just plugged in USB.

The crash can be reproduced sometimes.

-- Backtrace:
Application: Plazma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f035a6ad900 (LWP 2179))]

Thread 10 (Thread 0x7f03431a8700 (LWP 2185)):
#0  0x00007f0353c2424d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f0358afa432 in _xcb_conn_wait (__timeout=-1, __nfds=1, __fds=0x7f03431a7bc0) at /usr/include/bits/poll2.h:46
#2  0x00007f0358afa432 in _xcb_conn_wait (c=c@entry=0x17a3d80, cond=cond@entry=0x17a3dc0, vector=vector@entry=0x0, count=count@entry=0x0) at xcb_conn.c:459
#3  0x00007f0358afc007 in xcb_wait_for_event (c=0x17a3d80) at xcb_in.c:693
#4  0x00007f0345928e29 in QXcbEventReader::run() (this=0x17b1ee0) at qxcbconnection.cpp:1229
#5  0x00007f035431594f in QThreadPrivate::start(void*) (arg=0x17b1ee0) at thread/qthread_unix.cpp:331
#6  0x00007f035342b4a4 in start_thread (arg=0x7f03431a8700) at pthread_create.c:334
#7  0x00007f0353c2cbdd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7f033bfff700 (LWP 2196)):
#0  0x00007f0353c2424d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f0350318264 in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7f0334003070, timeout=<optimized out>, context=0x7f03340009b0) at gmain.c:4135
#2  0x00007f0350318264 in g_main_context_iterate (context=context@entry=0x7f03340009b0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3835
#3  0x00007f035031836c in g_main_context_iteration (context=0x7f03340009b0, may_block=may_block@entry=1) at gmain.c:3901
#4  0x00007f035453a52b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f03340008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f03544e463a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f033bffecb0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f0354310b1c in QThread::exec() (this=this@entry=0x18b0730) at thread/qthread.cpp:503
#7  0x00007f03575e09a5 in QQmlThreadPrivate::run() (this=0x18b0730) at /usr/src/debug/qtdeclarative-opensource-src-5.5.1/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007f035431594f in QThreadPrivate::start(void*) (arg=0x18b0730) at thread/qthread_unix.cpp:331
#9  0x00007f035342b4a4 in start_thread (arg=0x7f033bfff700) at pthread_create.c:334
#10 0x00007f0353c2cbdd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7f032f8e9700 (LWP 2228)):
#0  0x00007f0353c2424d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f0350318264 in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7f0328002e70, timeout=<optimized out>, context=0x7f0328000990) at gmain.c:4135
#2  0x00007f0350318264 in g_main_context_iterate (context=context@entry=0x7f0328000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3835
#3  0x00007f035031836c in g_main_context_iteration (context=0x7f0328000990, may_block=may_block@entry=1) at gmain.c:3901
#4  0x00007f035453a52b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f03280008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f03544e463a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f032f8e8cb0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f0354310b1c in QThread::exec() (this=this@entry=0x1a71310) at thread/qthread.cpp:503
#7  0x00007f03575e09a5 in QQmlThreadPrivate::run() (this=0x1a71310) at /usr/src/debug/qtdeclarative-opensource-src-5.5.1/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007f035431594f in QThreadPrivate::start(void*) (arg=0x1a71310) at thread/qthread_unix.cpp:331
#9  0x00007f035342b4a4 in start_thread (arg=0x7f032f8e9700) at pthread_create.c:334
#10 0x00007f0353c2cbdd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7f032e147700 (LWP 2231)):
#0  0x00007f03503181e6 in g_main_context_iterate (context=context@entry=0x7f0320000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3832
#1  0x00007f035031836c in g_main_context_iteration (context=0x7f0320000990, may_block=may_block@entry=1) at gmain.c:3901
#2  0x00007f035453a52b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f03200008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#3  0x00007f03544e463a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f032e146cb0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#4  0x00007f0354310b1c in QThread::exec() (this=this@entry=0x1b20700) at thread/qthread.cpp:503
#5  0x00007f03575e09a5 in QQmlThreadPrivate::run() (this=0x1b20700) at /usr/src/debug/qtdeclarative-opensource-src-5.5.1/src/qml/qml/ftw/qqmlthread.cpp:141
#6  0x00007f035431594f in QThreadPrivate::start(void*) (arg=0x1b20700) at thread/qthread_unix.cpp:331
#7  0x00007f035342b4a4 in start_thread (arg=0x7f032e147700) at pthread_create.c:334
#8  0x00007f0353c2cbdd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f032c932700 (LWP 2242)):
#0  0x00007f035343107f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f0359d88a84 in QTWTF::TCMalloc_PageHeap::scavengerThread() (this=0x7f035a06fea0 <QTWTF::pageheap_memory>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2  0x00007f0359d88ac9 in QTWTF::TCMalloc_PageHeap::runScavengerThread(void*) (context=<optimized out>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3  0x00007f035342b4a4 in start_thread (arg=0x7f032c932700) at pthread_create.c:334
#4  0x00007f0353c2cbdd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f03252da700 (LWP 2310)):
#0  0x00007f0353c2424d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f0350318264 in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7f029c003120, timeout=<optimized out>, context=0x7f029c000990) at gmain.c:4135
#2  0x00007f0350318264 in g_main_context_iterate (context=context@entry=0x7f029c000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3835
#3  0x00007f035031836c in g_main_context_iteration (context=0x7f029c000990, may_block=may_block@entry=1) at gmain.c:3901
#4  0x00007f035453a52b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f029c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f03544e463a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f03252d9c70, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f0354310b1c in QThread::exec() (this=this@entry=0x20b8170) at thread/qthread.cpp:503
#7  0x00007f0358165e42 in QQuickPixmapReader::run() (this=0x20b8170) at /usr/src/debug/qtdeclarative-opensource-src-5.5.1/src/quick/util/qquickpixmapcache.cpp:760
#8  0x00007f035431594f in QThreadPrivate::start(void*) (arg=0x20b8170) at thread/qthread_unix.cpp:331
#9  0x00007f035342b4a4 in start_thread (arg=0x7f03252da700) at pthread_create.c:334
#10 0x00007f0353c2cbdd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f0324ad9700 (LWP 2316)):
#0  0x00007f035343107f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f0354316abb in QWaitCondition::wait(QMutex*, unsigned long) (time=18446744073709551615, this=0x20f1d80) at thread/qwaitcondition_unix.cpp:136
#2  0x00007f0354316abb in QWaitCondition::wait(QMutex*, unsigned long) (this=this@entry=0x180a808, mutex=mutex@entry=0x180a800, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f03581d800e in QSGRenderThread::processEventsAndWaitForMore() (wait=true, this=0x180a7f8) at /usr/src/debug/qtdeclarative-opensource-src-5.5.1/src/quick/scenegraph/qsgthreadedrenderloop.cpp:224
#4  0x00007f03581d800e in QSGRenderThread::processEventsAndWaitForMore() (this=this@entry=0x180a780) at /usr/src/debug/qtdeclarative-opensource-src-5.5.1/src/quick/scenegraph/qsgthreadedrenderloop.cpp:657
#5  0x00007f03581d8853 in QSGRenderThread::run() (this=0x180a780) at /usr/src/debug/qtdeclarative-opensource-src-5.5.1/src/quick/scenegraph/qsgthreadedrenderloop.cpp:686
#6  0x00007f035431594f in QThreadPrivate::start(void*) (arg=0x180a780) at thread/qthread_unix.cpp:331
#7  0x00007f035342b4a4 in start_thread (arg=0x7f0324ad9700) at pthread_create.c:334
#8  0x00007f0353c2cbdd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f028d5f9700 (LWP 2543)):
#0  0x00007f0353c2424d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f0350318264 in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7f0288004cd0, timeout=<optimized out>, context=0x7f0288000990) at gmain.c:4135
#2  0x00007f0350318264 in g_main_context_iterate (context=context@entry=0x7f0288000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3835
#3  0x00007f035031836c in g_main_context_iteration (context=0x7f0288000990, may_block=may_block@entry=1) at gmain.c:3901
#4  0x00007f035453a52b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f02880008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f03544e463a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f028d5f8c90, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f0354310b1c in QThread::exec() (this=this@entry=0x1f17800) at thread/qthread.cpp:503
#7  0x00007f028fb0ee47 in KCupsConnection::run() (this=0x1f17800) at /usr/src/debug/print-manager-15.12.0/libkcups/KCupsConnection.cpp:304
#8  0x00007f035431594f in QThreadPrivate::start(void*) (arg=0x1f17800) at thread/qthread_unix.cpp:331
#9  0x00007f035342b4a4 in start_thread (arg=0x7f028d5f9700) at pthread_create.c:334
#10 0x00007f0353c2cbdd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f0282e25700 (LWP 2602)):
#0  0x00007f035343107f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f0354316abb in QWaitCondition::wait(QMutex*, unsigned long) (time=18446744073709551615, this=0x2daf680) at thread/qwaitcondition_unix.cpp:136
#2  0x00007f0354316abb in QWaitCondition::wait(QMutex*, unsigned long) (this=this@entry=0x2daf2d8, mutex=mutex@entry=0x2daf2d0, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f03581d800e in QSGRenderThread::processEventsAndWaitForMore() (wait=true, this=0x2daf2c8) at /usr/src/debug/qtdeclarative-opensource-src-5.5.1/src/quick/scenegraph/qsgthreadedrenderloop.cpp:224
#4  0x00007f03581d800e in QSGRenderThread::processEventsAndWaitForMore() (this=this@entry=0x2daf250) at /usr/src/debug/qtdeclarative-opensource-src-5.5.1/src/quick/scenegraph/qsgthreadedrenderloop.cpp:657
#5  0x00007f03581d8853 in QSGRenderThread::run() (this=0x2daf250) at /usr/src/debug/qtdeclarative-opensource-src-5.5.1/src/quick/scenegraph/qsgthreadedrenderloop.cpp:686
#6  0x00007f035431594f in QThreadPrivate::start(void*) (arg=0x2daf250) at thread/qthread_unix.cpp:331
#7  0x00007f035342b4a4 in start_thread (arg=0x7f0282e25700) at pthread_create.c:334
#8  0x00007f0353c2cbdd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f035a6ad900 (LWP 2179)):
[KCrash Handler]
#6  0x00007f03544ee617 in QMetaObject::cast(QObject*) const () at kernel/qmetaobject.cpp:312
#7  0x00007f035759fc5f in QQmlPropertyCache::resolve(QQmlPropertyData*) const (object=<optimized out>) at /usr/include/qt5/QtCore/qobject.h:518
#8  0x00007f035759fc5f in QQmlPropertyCache::resolve(QQmlPropertyData*) const (this=this@entry=0x3783f90, data=data@entry=0x3788638) at /usr/src/debug/qtdeclarative-opensource-src-5.5.1/src/qml/qml/qqmlpropertycache.cpp:821
#9  0x00007f035759fcb4 in QQmlPropertyCache::ensureResolved(QQmlPropertyData*) const (this=this@entry=0x3783f90, p=p@entry=0x3788638) at /usr/src/debug/qtdeclarative-opensource-src-5.5.1/src/qml/qml/qqmlpropertycache.cpp:788
#10 0x00007f035759fece in QQmlPropertyCache::findProperty(QStringHash<QPair<int, QQmlPropertyData*> >::ConstIterator, QQmlVMEMetaObject const*, QQmlContextData*) const (this=0x3783f90, it=..., vmemo=<optimized out>, context=<optimized out>) at /usr/src/debug/qtdeclarative-opensource-src-5.5.1/src/qml/qml/qqmlpropertycache.cpp:1016
#11 0x00007f03575215ac in QV4::QObjectWrapper::findProperty(QV4::ExecutionEngine*, QQmlContextData*, QV4::String*, QV4::QObjectWrapper::RevisionMode, QQmlPropertyData*) const (context=0x2fba340, object=0x2387f00, key=<synthetic pointer>, this=0x3783f90) at /usr/src/debug/qtdeclarative-opensource-src-5.5.1/src/qml/qml/qqmlpropertycache_p.h:288
#12 0x00007f03575215ac in QV4::QObjectWrapper::findProperty(QV4::ExecutionEngine*, QQmlContextData*, QV4::String*, QV4::QObjectWrapper::RevisionMode, QQmlPropertyData*) const (this=this@entry=0x7f032d1483e8, engine=engine@entry=0x1b481a0, qmlContext=qmlContext@entry=0x2fba340, name=0x7f032d1483f0, revisionMode=revisionMode@entry=QV4::QObjectWrapper::IgnoreRevision, local=<optimized out>) at /usr/src/debug/qtdeclarative-opensource-src-5.5.1/src/qml/jsruntime/qv4qobjectwrapper.cpp:251
#13 0x00007f0357528085 in QV4::QObjectWrapper::getQmlProperty(QQmlContextData*, QV4::String*, QV4::QObjectWrapper::RevisionMode, bool*, bool) (this=0x7f032d1483e8, qmlContext=0x2fba340, n=<optimized out>, revisionMode=QV4::QObjectWrapper::IgnoreRevision, hasProperty=0x0, includeImports=<optimized out>) at /usr/src/debug/qtdeclarative-opensource-src-5.5.1/src/qml/jsruntime/qv4qobjectwrapper.cpp:279
#14 0x00007f03575397b6 in QV4::Runtime::getProperty(QV4::ExecutionEngine*, QV4::Value const&, int) (hasProperty=0x0, name=<optimized out>, this=<optimized out>) at /usr/src/debug/qtdeclarative-opensource-src-5.5.1/src/qml/jsruntime/qv4object_p.h:279
#15 0x00007f03575397b6 in QV4::Runtime::getProperty(QV4::ExecutionEngine*, QV4::Value const&, int) (engine=0x1b481a0, object=..., nameIndex=<optimized out>) at /usr/src/debug/qtdeclarative-opensource-src-5.5.1/src/qml/jsruntime/qv4runtime.cpp:675
#16 0x00007f02980ec117 in  ()
#17 0x0000000002fba340 in  ()
#18 0x0000000001a4df00 in  ()
#19 0x0000000000000000 in  ()

Possible duplicates by query: bug 356732, bug 354978, bug 354427, bug 353552, bug 351616.

Reported using DrKonqi