Bug 382756

Summary: Plasma crashed, while loading firefox, darkening display but doesn't affecting anything else
Product: [Plasma] plasmashell Reporter: pirminbraun16+bugs.kde.org
Component: generalAssignee: David Edmundson <kde>
Status: RESOLVED DUPLICATE    
Severity: crash CC: plasma-bugs
Priority: NOR Keywords: drkonqi
Version: 5.10.4   
Target Milestone: 1.0   
Platform: Arch Linux   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description pirminbraun16+bugs.kde.org 2017-07-26 14:37:35 UTC 
Application: plasmashell (5.10.4)

Qt Version: 5.9.1
Frameworks Version: 5.36.0
Operating System: Linux 4.13.0-rc2-mainline x86_64
Distribution (Platform): Archlinux Packages

-- Information about the crash:
- What I was doing when the application crashed:
loading firefox with many tabs
- Unusual behavior I noticed:
display background brightness getting lowered after or while crash
crash icon was in systray/dock, otherwise I didn't notice it was a crash

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f19d1ff9d80 (LWP 919))]

Thread 20 (Thread 0x7f1846bd3700 (LWP 2591)):
#0  0x00007f19c63fbae3 in  () at /usr/lib/libglib-2.0.so.0
#1  0x00007f19c63fe07b in g_main_context_prepare () at /usr/lib/libglib-2.0.so.0
#2  0x00007f19c63feb3b in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007f19c63fed1c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#4  0x00007f19cbf77084 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f19cbf1affb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007f19cbd3440e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007f19ceebd1d5 in  () at /usr/lib/libQt5Qml.so.5
#8  0x00007f19cbd3915b in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f19caf00049 in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007f19cb64cf0f in clone () at /usr/lib/libc.so.6

Thread 19 (Thread 0x7f186f0ea700 (LWP 2584)):
#0  0x00007f19bf97244d in pa_pstream_unref () at /usr/lib/pulseaudio/libpulsecommon-10.0.so
#1  0x00007f19bf9729a3 in  () at /usr/lib/pulseaudio/libpulsecommon-10.0.so
#2  0x00007f19bf97320a in  () at /usr/lib/pulseaudio/libpulsecommon-10.0.so
#3  0x00007f19bffe499c in pa_mainloop_dispatch () at /usr/lib/libpulse.so.0
#4  0x00007f19bffe4d9c in pa_mainloop_iterate () at /usr/lib/libpulse.so.0
#5  0x00007f19bffe4e40 in pa_mainloop_run () at /usr/lib/libpulse.so.0
#6  0x00007f19bfff2e29 in  () at /usr/lib/libpulse.so.0
#7  0x00007f19bf982fe8 in  () at /usr/lib/pulseaudio/libpulsecommon-10.0.so
#8  0x00007f19caf00049 in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f19cb64cf0f in clone () at /usr/lib/libc.so.6

Thread 18 (Thread 0x7f186ded9700 (LWP 1544)):
#0  0x00007ffe787fead4 in clock_gettime ()
#1  0x00007f19cb65a546 in clock_gettime () at /usr/lib/libc.so.6
#2  0x00007f19cbf76972 in  () at /usr/lib/libQt5Core.so.5
#3  0x00007f19cbf7510a in QTimerInfoList::updateCurrentTime() () at /usr/lib/libQt5Core.so.5
#4  0x00007f19cbf756e6 in QTimerInfoList::timerWait(timespec&) () at /usr/lib/libQt5Core.so.5
#5  0x00007f19cbf76dcf in  () at /usr/lib/libQt5Core.so.5
#6  0x00007f19c63fe148 in g_main_context_prepare () at /usr/lib/libglib-2.0.so.0
#7  0x00007f19c63feb3b in  () at /usr/lib/libglib-2.0.so.0
#8  0x00007f19c63fed1c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#9  0x00007f19cbf77084 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#10 0x00007f19cbf1affb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#11 0x00007f19cbd3440e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#12 0x00007f19ceebd1d5 in  () at /usr/lib/libQt5Qml.so.5
#13 0x00007f19cbd3915b in  () at /usr/lib/libQt5Core.so.5
#14 0x00007f19caf00049 in start_thread () at /usr/lib/libpthread.so.0
#15 0x00007f19cb64cf0f in clone () at /usr/lib/libc.so.6

Thread 17 (Thread 0x7f1875766700 (LWP 1484)):
#0  0x00007f19cb642e9d in poll () at /usr/lib/libc.so.6
#1  0x00007f19c63fec09 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f19c63fed1c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f19cbf77084 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f19cbf1affb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f19cbd3440e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f1876bb218a in KCupsConnection::run() () at /usr/lib/libkcupslib.so
#7  0x00007f19cbd3915b in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f19caf00049 in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f19cb64cf0f in clone () at /usr/lib/libc.so.6

Thread 16 (Thread 0x7f1891e50700 (LWP 1476)):
#0  0x00007f19cbd30a4f in QMutex::unlock() () at /usr/lib/libQt5Core.so.5
#1  0x00007f19cbf76fa2 in  () at /usr/lib/libQt5Core.so.5
#2  0x00007f19c63fe148 in g_main_context_prepare () at /usr/lib/libglib-2.0.so.0
#3  0x00007f19c63feb3b in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007f19c63fed1c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#5  0x00007f19cbf77084 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007f19cbf1affb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#7  0x00007f19cbd3440e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#8  0x00007f19cbd3915b in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f19caf00049 in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007f19cb64cf0f in clone () at /usr/lib/libc.so.6

Thread 15 (Thread 0x7f1892651700 (LWP 1475)):
#0  0x00007f19c6443a80 in g_mutex_unlock () at /usr/lib/libglib-2.0.so.0
#1  0x00007f19c63fe609 in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#2  0x00007f19c63febb0 in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007f19c63fed1c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#4  0x00007f19cbf77084 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f19cbf1affb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007f19cbd3440e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007f19cbd3915b in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f19caf00049 in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f19cb64cf0f in clone () at /usr/lib/libc.so.6

Thread 14 (Thread 0x7f1893252700 (LWP 1465)):
#0  0x00007f19c6443a69 in g_mutex_lock () at /usr/lib/libglib-2.0.so.0
#1  0x00007f19c63fe153 in g_main_context_prepare () at /usr/lib/libglib-2.0.so.0
#2  0x00007f19c63feb3b in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007f19c63fed1c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#4  0x00007f19cbf77084 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f19cbf1affb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007f19cbd3440e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007f18981f33c5 in  () at /usr/lib/qt/qml/QtQuick/XmlListModel/libqmlxmllistmodelplugin.so
#8  0x00007f19cbd3915b in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f19caf00049 in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007f19cb64cf0f in clone () at /usr/lib/libc.so.6

Thread 13 (Thread 0x7f1893fff700 (LWP 1457)):
#0  0x00007f19c6443a84 in g_mutex_unlock () at /usr/lib/libglib-2.0.so.0
#1  0x00007f19c63fe138 in g_main_context_prepare () at /usr/lib/libglib-2.0.so.0
#2  0x00007f19c63feb3b in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007f19c63fed1c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#4  0x00007f19cbf77084 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f19cbf1affb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007f19cbd3440e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007f19cbd3915b in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f19caf00049 in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f19cb64cf0f in clone () at /usr/lib/libc.so.6

Thread 12 (Thread 0x7f1898bfd700 (LWP 1456)):
#0  0x00007f19caf061ad in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f19cb9baccc in __gthread_cond_wait (__mutex=<optimized out>, __cond=<optimized out>) at /build/gcc-multilib/src/gcc-build/x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/gthr-default.h:864
#2  0x00007f19cb9baccc in std::condition_variable::wait(std::unique_lock<std::mutex>&) (this=<optimized out>, __lock=...) at /build/gcc-multilib/src/gcc/libstdc++-v3/src/c++11/condition_variable.cc:53
#3  0x00007f18e7f148d9 in WTF::ParkingLot::parkConditionally(void const*, std::function<bool ()>, std::function<void ()>, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > >) () at /usr/lib/libQt5WebKit.so.5
#4  0x00007f18e86db77e in  () at /usr/lib/libQt5WebKit.so.5
#5  0x00007f18e86dd199 in  () at /usr/lib/libQt5WebKit.so.5
#6  0x00007f18e7f17898 in  () at /usr/lib/libQt5WebKit.so.5
#7  0x00007f18e7f49eea in  () at /usr/lib/libQt5WebKit.so.5
#8  0x00007f19caf00049 in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f19cb64cf0f in clone () at /usr/lib/libc.so.6

Thread 11 (Thread 0x7f18993fe700 (LWP 1455)):
#0  0x00007f19cb642e9d in poll () at /usr/lib/libc.so.6
#1  0x00007f19c63fec09 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f19c63fed1c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f19cbf77084 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f19cbf1affb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f19cbd3440e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f19cbd3915b in  () at /usr/lib/libQt5Core.so.5
#7  0x00007f19caf00049 in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007f19cb64cf0f in clone () at /usr/lib/libc.so.6

Thread 10 (Thread 0x7f1899bff700 (LWP 1454)):
#0  0x00007f19cb642e9d in poll () at /usr/lib/libc.so.6
#1  0x00007f19c63fec09 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f19c63fed1c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f19cbf77084 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f19cbf1affb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f19cbd3440e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f19cbd3915b in  () at /usr/lib/libQt5Core.so.5
#7  0x00007f19caf00049 in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007f19cb64cf0f in clone () at /usr/lib/libc.so.6

Thread 9 (Thread 0x7f18e4f28700 (LWP 1449)):
#0  0x00007f19caf061ad in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f19cb9baccc in __gthread_cond_wait (__mutex=<optimized out>, __cond=<optimized out>) at /build/gcc-multilib/src/gcc-build/x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/gthr-default.h:864
#2  0x00007f19cb9baccc in std::condition_variable::wait(std::unique_lock<std::mutex>&) (this=<optimized out>, __lock=...) at /build/gcc-multilib/src/gcc/libstdc++-v3/src/c++11/condition_variable.cc:53
#3  0x00007f18e95083f7 in  () at /usr/lib/libQt5WebKit.so.5
#4  0x00007f18e9508539 in  () at /usr/lib/libQt5WebKit.so.5
#5  0x00007f19cb9c100f in std::execute_native_thread_routine(void*) (__p=0x4af11a3810) at /build/gcc-multilib/src/gcc/libstdc++-v3/src/c++11/thread.cc:83
#6  0x00007f19caf00049 in start_thread () at /usr/lib/libpthread.so.0
#7  0x00007f19cb64cf0f in clone () at /usr/lib/libc.so.6

Thread 8 (Thread 0x7f1905d69700 (LWP 1448)):
#0  0x00007f19cb642e9d in poll () at /usr/lib/libc.so.6
#1  0x00007f19c63fec09 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f19c63fed1c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f19cbf77084 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f19cbf1affb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f19cbd3440e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f19cfa758d6 in  () at /usr/lib/libQt5Quick.so.5
#7  0x00007f19cbd3915b in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f19caf00049 in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f19cb64cf0f in clone () at /usr/lib/libc.so.6

Thread 7 (Thread 0x7f1997425700 (LWP 1414)):
#0  0x00007f19caf061ad in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f19d1790b04 in  () at /usr/lib/libQt5Script.so.5
#2  0x00007f19d1790b49 in  () at /usr/lib/libQt5Script.so.5
#3  0x00007f19caf00049 in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f19cb64cf0f in clone () at /usr/lib/libc.so.6

Thread 6 (Thread 0x7f19a7bed700 (LWP 1042)):
#0  0x00007f19c63fe637 in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#1  0x00007f19c63febb0 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f19c63fed1c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f19cbf77084 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f19cbf1affb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f19cbd3440e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f19cbd3915b in  () at /usr/lib/libQt5Core.so.5
#7  0x00007f19caf00049 in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007f19cb64cf0f in clone () at /usr/lib/libc.so.6

Thread 5 (Thread 0x7f19b1b73700 (LWP 1031)):
#0  0x00007f19cb642e9d in poll () at /usr/lib/libc.so.6
#1  0x00007f19c63fec09 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f19c63fed1c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f19cbf77084 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f19cbf1affb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f19cbd3440e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f19ceebd1d5 in  () at /usr/lib/libQt5Qml.so.5
#7  0x00007f19cbd3915b in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f19caf00049 in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f19cb64cf0f in clone () at /usr/lib/libc.so.6

Thread 4 (Thread 0x7f19b3fff700 (LWP 969)):
#0  0x00007f19cb642e9d in poll () at /usr/lib/libc.so.6
#1  0x00007f19c63fec09 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f19c63fed1c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f19cbf77084 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f19cbf1affb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f19cbd3440e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f19ceebd1d5 in  () at /usr/lib/libQt5Qml.so.5
#7  0x00007f19cbd3915b in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f19caf00049 in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f19cb64cf0f in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x7f19b9b4f700 (LWP 944)):
#0  0x00007f19cb642e9d in poll () at /usr/lib/libc.so.6
#1  0x00007f19c63fec09 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f19c63fed1c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f19cbf77084 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f19cbf1affb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f19cbd3440e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f19cc396396 in  () at /usr/lib/libQt5DBus.so.5
#7  0x00007f19cbd3915b in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f19caf00049 in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f19cb64cf0f in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7f19bbbe0700 (LWP 936)):
#0  0x00007f19cb642e9d in poll () at /usr/lib/libc.so.6
#1  0x00007f19d069e8e0 in  () at /usr/lib/libxcb.so.1
#2  0x00007f19d06a0679 in xcb_wait_for_event () at /usr/lib/libxcb.so.1
#3  0x00007f19be15672a in  () at /usr/lib/libQt5XcbQpa.so.5
#4  0x00007f19cbd3915b in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f19caf00049 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f19cb64cf0f in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7f19d1ff9d80 (LWP 919)):
[KCrash Handler]
#5  0x00007f19ceea3a01 in QQmlBinding::getPropertyData(QQmlPropertyData**, QQmlPropertyData*) const () at /usr/lib/libQt5Qml.so.5
#6  0x00007f19ceea6cfc in  () at /usr/lib/libQt5Qml.so.5
#7  0x00007f19ceea77de in  () at /usr/lib/libQt5Qml.so.5
#8  0x00007f19ceea45a3 in QQmlBinding::update(QFlags<QQmlPropertyData::WriteFlag>) () at /usr/lib/libQt5Qml.so.5
#9  0x00007f19cee7b293 in QQmlNotifier::emitNotify(QQmlNotifierEndpoint*, void**) () at /usr/lib/libQt5Qml.so.5
#10 0x00007f19cee19cd9 in QQmlData::signalEmitted(QAbstractDeclarativeData*, QObject*, int, void**) () at /usr/lib/libQt5Qml.so.5
#11 0x00007f19cbf4bf9f in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5
#12 0x00007f190ff9b5ad in  () at /usr/lib/qt/qml/org/kde/plasma/private/volume/libplasma-volume-declarative.so
#13 0x00007f190ff90d11 in  () at /usr/lib/qt/qml/org/kde/plasma/private/volume/libplasma-volume-declarative.so
#14 0x00007f19bffdad8c in  () at /usr/lib/libpulse.so.0
#15 0x00007f19bf96cba1 in  () at /usr/lib/pulseaudio/libpulsecommon-10.0.so
#16 0x00007f19bf96cf2b in pa_pdispatch_run () at /usr/lib/pulseaudio/libpulsecommon-10.0.so
#17 0x00007f19bffcfa6e in  () at /usr/lib/libpulse.so.0
#18 0x00007f19bf96f997 in  () at /usr/lib/pulseaudio/libpulsecommon-10.0.so
#19 0x00007f19bf9725eb in  () at /usr/lib/pulseaudio/libpulsecommon-10.0.so
#20 0x00007f19bf972989 in  () at /usr/lib/pulseaudio/libpulsecommon-10.0.so
#21 0x00007f19bf97320a in  () at /usr/lib/pulseaudio/libpulsecommon-10.0.so
#22 0x00007f19bfdbbf36 in  () at /usr/lib/libpulse-mainloop-glib.so.0
#23 0x00007f19c63fea57 in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0
#24 0x00007f19c63fec88 in  () at /usr/lib/libglib-2.0.so.0
#25 0x00007f19c63fed1c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#26 0x00007f19cbf77061 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#27 0x00007f19cbf1affb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#28 0x00007f19cbf24048 in QCoreApplication::exec() () at /usr/lib/libQt5Core.so.5
#29 0x0000004aeeaf273b in  ()
#30 0x00007f19cb57f4ca in __libc_start_main () at /usr/lib/libc.so.6
#31 0x0000004aeeaf2ada in _start ()

Reported using DrKonqi
Comment 1 David Edmundson 2017-07-30 22:37:16 UTC 

*** This bug has been marked as a duplicate of bug 381525 ***