Bug 377426

Application: plasmashell (5.8.3)

Qt Version: 5.6.1
Frameworks Version: 5.26.0
Operating System: Linux 4.4.49-16-default x86_64
Distribution: "openSUSE Leap 42.2"

-- Information about the crash:
- What I was doing when the application crashed:
Ejecting a removable device -- the DVD player which had a DVD film in it.
The DVD Player is the Fluendo product.

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 0x7f83a620f900 (LWP 1978))]

Thread 10 (Thread 0x7f82ba03c700 (LWP 26163)):
#0  0x00007f839ffd73f0 in QMutex::lock() (this=this@entry=0x5b28b68) at thread/qmutex.cpp:217
#1  0x00007f83a01f1255 in postEventSourcePrepare(GSource*, gint*) (m=0x5b28b68, this=<synthetic pointer>) at ../../src/corelib/thread/qmutex.h:128
#2  0x00007f83a01f1255 in postEventSourcePrepare(GSource*, gint*) (this=0x5b28b40) at ../../src/corelib/thread/qthread_p.h:246
#3  0x00007f83a01f1255 in postEventSourcePrepare(GSource*, gint*) (s=0x7f8294003c00, timeout=0x7f82ba03baf4) at kernel/qeventdispatcher_glib.cpp:253
#4  0x00007f839bf5295d in g_main_context_prepare () at /usr/lib64/libglib-2.0.so.0
#5  0x00007f839bf53230 in  () at /usr/lib64/libglib-2.0.so.0
#6  0x00007f839bf5342c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#7  0x00007f83a01f132b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f8294007970, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#8  0x00007f83a019efdb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f82ba03bcb0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#9  0x00007f839ffd9f1a in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:500
#10 0x00007f83a330b9c8 in  () at /usr/lib64/libQt5Qml.so.5
#11 0x00007f839ffde9e9 in QThreadPrivate::start(void*) (arg=0x663ec60) at thread/qthread_unix.cpp:341
#12 0x00007f839f0d7734 in start_thread () at /lib64/libpthread.so.0
#13 0x00007f839f8e0d3d in clone () at /lib64/libc.so.6

Thread 9 (Thread 0x7f82db43e700 (LWP 2342)):
#0  0x00007f839f8d849d in poll () at /lib64/libc.so.6
#1  0x00007f839bf53314 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f839bf5342c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f83a01f132b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f82d40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#4  0x00007f83a019efdb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f82db43dc90, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f839ffd9f1a in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:500
#6  0x00007f82dc8908f7 in KCupsConnection::run() () at /usr/lib64/libkcupslib.so
#7  0x00007f839ffde9e9 in QThreadPrivate::start(void*) (arg=0x42a9160) at thread/qthread_unix.cpp:341
#8  0x00007f839f0d7734 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f839f8e0d3d in clone () at /lib64/libc.so.6

Thread 8 (Thread 0x7f82e677e700 (LWP 2333)):
#0  0x00007f839f8d849d in poll () at /lib64/libc.so.6
#1  0x00007f839bf53314 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f839bf5342c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f83a01f132b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f82e00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#4  0x00007f83a019efdb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f82e677dc70, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f839ffd9f1a in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:500
#6  0x00007f83a3e92632 in  () at /usr/lib64/libQt5Quick.so.5
#7  0x00007f839ffde9e9 in QThreadPrivate::start(void*) (arg=0x30320a0) at thread/qthread_unix.cpp:341
#8  0x00007f839f0d7734 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f839f8e0d3d in clone () at /lib64/libc.so.6

Thread 7 (Thread 0x7f82efc56700 (LWP 2268)):
#0  0x00007f839f0dc0af in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f837acf1533 in  () at /usr/lib64/dri/r600_dri.so
#2  0x00007f837acf0d57 in  () at /usr/lib64/dri/r600_dri.so
#3  0x00007f839f0d7734 in start_thread () at /lib64/libpthread.so.0
#4  0x00007f839f8e0d3d in clone () at /lib64/libc.so.6

Thread 6 (Thread 0x7f837bfff700 (LWP 2243)):
#0  0x00007f839f0dc0af in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f83a58e293b in  () at /usr/lib64/libQt5Script.so.5
#2  0x00007f83a58e2969 in  () at /usr/lib64/libQt5Script.so.5
#3  0x00007f839f0d7734 in start_thread () at /lib64/libpthread.so.0
#4  0x00007f839f8e0d3d in clone () at /lib64/libc.so.6

Thread 5 (Thread 0x7f8386136700 (LWP 2179)):
#0  0x00007f839f8d849d in poll () at /lib64/libc.so.6
#1  0x00007f839bf53314 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f839bf5342c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f83a01f132b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f83740008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#4  0x00007f83a019efdb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f8386135cb0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f839ffd9f1a in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:500
#6  0x00007f83a330b9c8 in  () at /usr/lib64/libQt5Qml.so.5
#7  0x00007f839ffde9e9 in QThreadPrivate::start(void*) (arg=0x28b0ca0) at thread/qthread_unix.cpp:341
#8  0x00007f839f0d7734 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f839f8e0d3d in clone () at /lib64/libc.so.6

Thread 4 (Thread 0x7f8387bee700 (LWP 2055)):
#0  0x00007f839bf947d4 in g_mutex_unlock () at /usr/lib64/libglib-2.0.so.0
#1  0x00007f839bf53436 in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f83a01f132b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f837c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#3  0x00007f83a019efdb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f8387bedcb0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#4  0x00007f839ffd9f1a in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:500
#5  0x00007f83a330b9c8 in  () at /usr/lib64/libQt5Qml.so.5
#6  0x00007f839ffde9e9 in QThreadPrivate::start(void*) (arg=0x27b20e0) at thread/qthread_unix.cpp:341
#7  0x00007f839f0d7734 in start_thread () at /lib64/libpthread.so.0
#8  0x00007f839f8e0d3d in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7f838d656700 (LWP 2004)):
#0  0x00007f839f8d451d in read () at /lib64/libc.so.6
#1  0x00007f839bf93670 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f839bf52e49 in g_main_context_check () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f839bf532a8 in  () at /usr/lib64/libglib-2.0.so.0
#4  0x00007f839bf5342c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#5  0x00007f83a01f132b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f83800008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#6  0x00007f83a019efdb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f838d655ca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#7  0x00007f839ffd9f1a in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:500
#8  0x00007f83a0d5e1d5 in  () at /usr/lib64/libQt5DBus.so.5
#9  0x00007f839ffde9e9 in QThreadPrivate::start(void*) (arg=0x7f83a0fc6ce0) at thread/qthread_unix.cpp:341
#10 0x00007f839f0d7734 in start_thread () at /lib64/libpthread.so.0
#11 0x00007f839f8e0d3d in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7f838f55e700 (LWP 2000)):
#0  0x00007f839f8d849d in poll () at /lib64/libc.so.6
#1  0x00007f83a48523e2 in  () at /usr/lib64/libxcb.so.1
#2  0x00007f83a4853fcf in xcb_wait_for_event () at /usr/lib64/libxcb.so.1
#3  0x00007f83918e0839 in  () at /usr/lib64/libQt5XcbQpa.so.5
#4  0x00007f839ffde9e9 in QThreadPrivate::start(void*) (arg=0x26a0920) at thread/qthread_unix.cpp:341
#5  0x00007f839f0d7734 in start_thread () at /lib64/libpthread.so.0
#6  0x00007f839f8e0d3d in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7f83a620f900 (LWP 1978)):
[KCrash Handler]
#6  0x00007f83a327cd70 in QQmlData::isSignalConnected(QAbstractDeclarativeData*, QObject const*, int) () at /usr/lib64/libQt5Qml.so.5
#7  0x00007f83a01cb4e0 in QMetaObject::activate(QObject*, int, int, void**) (signal_index=3, this=<optimized out>) at kernel/qobject_p.h:252
#8  0x00007f83a01cb4e0 in QMetaObject::activate(QObject*, int, int, void**) (sender=0x6780640, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=0x7ffe63d02140) at kernel/qobject.cpp:3605
#9  0x00007f83a22548ff in KJob::finished(KJob*, KJob::QPrivateSignal) () at /usr/lib64/libKF5CoreAddons.so.5
#10 0x00007f83a2255750 in KJob::finishJob(bool) () at /usr/lib64/libKF5CoreAddons.so.5
#11 0x00007f82da81e0fc in SolidDeviceJob::start() (this=0x6780640) at /usr/src/debug/plasma-workspace-5.8.3/dataengines/soliddevice/soliddevicejob.cpp:60
#12 0x00007f83a45e8829 in  () at /usr/lib64/libKF5Plasma.so.5
#13 0x00007f83a01cc166 in QObject::event(QEvent*) (this=0x6780640, e=<optimized out>) at kernel/qobject.cpp:1256
#14 0x00007f83a1133e3c in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=<optimized out>, receiver=0x6780640, e=0x5fe1410) at kernel/qapplication.cpp:3804
#15 0x00007f83a113849a in QApplication::notify(QObject*, QEvent*) (this=0x7ffe63d02970, receiver=0x6780640, e=0x5fe1410) at kernel/qapplication.cpp:3561
#16 0x00007f83a01a0fc5 in QCoreApplication::notifyInternal2(QObject*, QEvent*) (receiver=0x6780640, event=event@entry=0x5fe1410) at kernel/qcoreapplication.cpp:1015
#17 0x00007f83a01a2daa in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) (event=0x5fe1410, receiver=<optimized out>) at kernel/qcoreapplication.h:225
#18 0x00007f83a01a2daa in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x2672080) at kernel/qcoreapplication.cpp:1650
#19 0x00007f83a01a3358 in QCoreApplication::sendPostedEvents(QObject*, int) (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1508
#20 0x00007f83a01f1c83 in postEventSourceDispatch(GSource*, GSourceFunc, gpointer) (s=0x26c6ca0) at kernel/qeventdispatcher_glib.cpp:270
#21 0x00007f839bf53134 in g_main_context_dispatch () at /usr/lib64/libglib-2.0.so.0
#22 0x00007f839bf53388 in  () at /usr/lib64/libglib-2.0.so.0
#23 0x00007f839bf5342c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#24 0x00007f83a01f130c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x26cb830, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#25 0x00007f83a019efdb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffe63d027f0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#26 0x00007f83a01a6ec6 in QCoreApplication::exec() () at kernel/qcoreapplication.cpp:1285
#27 0x000000000041eacf in main(int, char**) (argc=2, argv=<optimized out>) at /usr/src/debug/plasma-workspace-5.8.3/shell/main.cpp:166

Reported using DrKonqi