Bug 387019

Application: plasmashell (5.11.3)

Qt Version: 5.9.2
Frameworks Version: 5.40.0
Operating System: Linux 4.13.12-1-ARCH x86_64
Distribution (Platform): Archlinux Packages

-- Information about the crash:
- What I was doing when the application crashed:
I was trying to remove the "Device Notifier" plasmoid from the desktop.

- Unusual behavior I noticed:
When I right-clicked and chose the "remove" option, the desktop went black. The plasmoid then appeared again at the top left corner of my desktop.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f1d78c86800 (LWP 1929))]

Thread 6 (Thread 0x7f1cc1158700 (LWP 1938)):
#0  0x00007f1d721fdf7b in poll () at /usr/lib/libc.so.6
#1  0x00007f1d6caf4ed3 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f1d6caf4fae in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f1d72b3bcf4 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f1d72adf48b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f1d728f827e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f1d7661929b in  () at /usr/lib/libQt5Quick.so.5
#7  0x00007f1d728fcfcb in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f1d71ab508a in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f1d7220847f in clone () at /usr/lib/libc.so.6

Thread 5 (Thread 0x7f1d5239b700 (LWP 1934)):
#0  0x00007f1d71abb38d in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f1d78342ef7 in  () at /usr/lib/libQt5Script.so.5
#2  0x00007f1d78342f39 in  () at /usr/lib/libQt5Script.so.5
#3  0x00007f1d71ab508a in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f1d7220847f in clone () at /usr/lib/libc.so.6

Thread 4 (Thread 0x7f1d53fff700 (LWP 1933)):
#0  0x00007f1d721fdf7b in poll () at /usr/lib/libc.so.6
#1  0x00007f1d6caf4ed3 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f1d6caf4fae in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f1d72b3bcf4 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f1d72adf48b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f1d728f827e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f1d75a6cc09 in  () at /usr/lib/libQt5Qml.so.5
#7  0x00007f1d728fcfcb in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f1d71ab508a in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f1d7220847f in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x7f1d5a9e0700 (LWP 1932)):
#0  0x00007f1d721f9a98 in read () at /usr/lib/libc.so.6
#1  0x00007f1d6cb1c521 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f1d6caf390b in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#3  0x00007f1d6caf4e76 in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007f1d6caf4fae in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#5  0x00007f1d72b3bcf4 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007f1d72adf48b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#7  0x00007f1d728f827e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#8  0x00007f1d75a6cc09 in  () at /usr/lib/libQt5Qml.so.5
#9  0x00007f1d728fcfcb in  () at /usr/lib/libQt5Core.so.5
#10 0x00007f1d71ab508a in start_thread () at /usr/lib/libpthread.so.0
#11 0x00007f1d7220847f in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7f1d5bfff700 (LWP 1931)):
#0  0x00007f1d721fdf7b in poll () at /usr/lib/libc.so.6
#1  0x00007f1d6caf4ed3 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f1d6caf4fae in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f1d72b3bcf4 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f1d72adf48b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f1d728f827e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f1d72f57376 in  () at /usr/lib/libQt5DBus.so.5
#7  0x00007f1d728fcfcb in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f1d71ab508a in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f1d7220847f in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7f1d78c86800 (LWP 1929)):
[KCrash Handler]
#5  0x00007f1d581b3c40 in  ()
#6  0x00007f1d759222f7 in QV4::PersistentValueStorage::mark(QV4::ExecutionEngine*) () at /usr/lib/libQt5Qml.so.5
#7  0x00007f1d758319f0 in QV4::MemoryManager::mark() () at /usr/lib/libQt5Qml.so.5
#8  0x00007f1d7583221d in  () at /usr/lib/libQt5Qml.so.5
#9  0x00007f1d75833ee9 in QV4::MemoryManager::allocString(unsigned long) () at /usr/lib/libQt5Qml.so.5
#10 0x00007f1d75911aab in QV4::ExecutionEngine::newString(QString const&) () at /usr/lib/libQt5Qml.so.5
#11 0x00007f1d75917d4c in QV4::ExecutionEngine::fromVariant(QVariant const&) () at /usr/lib/libQt5Qml.so.5
#12 0x00007f1d75917eed in QV4::ExecutionEngine::fromVariant(QVariant const&) () at /usr/lib/libQt5Qml.so.5
#13 0x00007f1d7599ce2e in  () at /usr/lib/libQt5Qml.so.5
#14 0x00007f1d7599dbd1 in QV4::QObjectWrapper::getQmlProperty(QQmlContextData*, QV4::String*, QV4::QObjectWrapper::RevisionMode, bool*, bool) const () at /usr/lib/libQt5Qml.so.5
#15 0x00007f1d759b4e00 in  () at /usr/lib/libQt5Qml.so.5
#16 0x00007f1d5166e054 in  ()
#17 0x0000000000000000 in  ()

Reported using DrKonqi