Bug 413927

Summary: KDE partition manager crashes when updating list of supported filesystems
Product: [Applications] partitionmanager Reporter: Maxim Voronovsky <johndonym>
Component: generalAssignee: Andrius Štikonas <andrius>
Status: RESOLVED FIXED    
Severity: crash Keywords: drkonqi
Priority: NOR    
Version First Reported In: 4.0.0   
Target Milestone: ---   
Platform: Arch Linux   
OS: Linux   
Latest Commit: https://invent.kde.org/kde/kpmcore/commit/bb7bf3ca03edba5c71e0d4b0d398373ec283f551 Version Fixed/Implemented In:
Sentry Crash Report:

Description Maxim Voronovsky 2019-11-07 23:29:40 UTC 
Application: partitionmanager (4.0.0)

Qt Version: 5.13.2
Frameworks Version: 5.63.0
Operating System: Linux 5.3.8-4-ck x86_64
Distribution: "Arch Linux"

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

1. Open KDE partition manager
2. Open "supported filesystems" in service menu
3. Double click or fast triple click on "update" button

The crash can be reproduced every time.

-- Backtrace:
Application: Управление разделами KDE (partitionmanager), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f4560177c80 (LWP 71717))]

Thread 10 (Thread 0x7f454915c700 (LWP 71774)):
#0  0x00007f45644099ef in poll () at /usr/lib/libc.so.6
#1  0x00007f4562aa9170 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f4562aaa113 in g_main_loop_run () at /usr/lib/libglib-2.0.so.0
#3  0x00007f45540b7ba8 in  () at /usr/lib/libgio-2.0.so.0
#4  0x00007f4562a85c11 in  () at /usr/lib/libglib-2.0.so.0
#5  0x00007f45636104cf in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f45644142d3 in clone () at /usr/lib/libc.so.6

Thread 9 (Thread 0x7f454995d700 (LWP 71773)):
#0  0x00007f4562a9fdb2 in g_main_context_query () at /usr/lib/libglib-2.0.so.0
#1  0x00007f4562aa90ed in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f4562aa9241 in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f4562aa9292 in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007f4562a85c11 in  () at /usr/lib/libglib-2.0.so.0
#5  0x00007f45636104cf in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f45644142d3 in clone () at /usr/lib/libc.so.6

Thread 8 (Thread 0x7f454a1be700 (LWP 71728)):
#0  0x00007f456440542c in read () at /usr/lib/libc.so.6
#1  0x00007f4562a599f0 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f4562aa7a31 in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#3  0x00007f4562aa9118 in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007f4562aa9241 in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#5  0x00007f45649b0b2c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007f456495783c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#7  0x00007f45661103b9 in  () at /usr/lib/libkpmcore.so.8
#8  0x00007f456478a530 in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f45636104cf in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007f45644142d3 in clone () at /usr/lib/libc.so.6

Thread 7 (Thread 0x7f454a9bf700 (LWP 71727)):
#0  0x00007f4563616c45 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f4556240e7c in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007f4556240a78 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007f45636104cf in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f45644142d3 in clone () at /usr/lib/libc.so.6

Thread 6 (Thread 0x7f454b1c0700 (LWP 71726)):
#0  0x00007f4563616c45 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f4556240e7c in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007f4556240a78 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007f45636104cf in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f45644142d3 in clone () at /usr/lib/libc.so.6

Thread 5 (Thread 0x7f4554db5700 (LWP 71725)):
#0  0x00007f4563616c45 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f4556240e7c in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007f4556240a78 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007f45636104cf in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f45644142d3 in clone () at /usr/lib/libc.so.6

Thread 4 (Thread 0x7f455570b700 (LWP 71724)):
#0  0x00007f4563616c45 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f4556240e7c in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007f4556240a78 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007f45636104cf in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f45644142d3 in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x7f455d3c9700 (LWP 71720)):
#0  0x00007f45649af3c3 in QTimerInfoList::timerWait(timespec&) () at /usr/lib/libQt5Core.so.5
#1  0x00007f45649b086f in  () at /usr/lib/libQt5Core.so.5
#2  0x00007f4562aa8a50 in g_main_context_prepare () at /usr/lib/libglib-2.0.so.0
#3  0x00007f4562aa9096 in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007f4562aa9241 in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#5  0x00007f45649b0b2c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007f456495783c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#7  0x00007f4564789305 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#8  0x00007f45640fbb37 in  () at /usr/lib/libQt5DBus.so.5
#9  0x00007f456478a530 in  () at /usr/lib/libQt5Core.so.5
#10 0x00007f45636104cf in start_thread () at /usr/lib/libpthread.so.0
#11 0x00007f45644142d3 in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7f455f358700 (LWP 71719)):
#0  0x00007f45644099ef in poll () at /usr/lib/libc.so.6
#1  0x00007f4562672630 in  () at /usr/lib/libxcb.so.1
#2  0x00007f45626742db in xcb_wait_for_event () at /usr/lib/libxcb.so.1
#3  0x00007f455fd2a0c1 in  () at /usr/lib/libQt5XcbQpa.so.5
#4  0x00007f456478a530 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f45636104cf in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f45644142d3 in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7f4560177c80 (LWP 71717)):
[KCrash Handler]
#6  0x00007f456609fe55 in FileSystemFactory::init() () at /usr/lib/libkpmcore.so.8
#7  0x00005649a2d9b99a in  ()
#8  0x00007f4564984c20 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5
#9  0x00007f456540bde3 in QAbstractButton::clicked(bool) () at /usr/lib/libQt5Widgets.so.5
#10 0x00007f456540c00c in  () at /usr/lib/libQt5Widgets.so.5
#11 0x00007f456540d412 in  () at /usr/lib/libQt5Widgets.so.5
#12 0x00007f456540d5d6 in QAbstractButton::mouseReleaseEvent(QMouseEvent*) () at /usr/lib/libQt5Widgets.so.5
#13 0x00007f4565356096 in QWidget::event(QEvent*) () at /usr/lib/libQt5Widgets.so.5
#14 0x00007f45653124e5 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#15 0x00007f456531bf8a in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#16 0x00007f4564958d12 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#17 0x00007f456531b12b in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool, bool) () at /usr/lib/libQt5Widgets.so.5
#18 0x00007f4565372371 in  () at /usr/lib/libQt5Widgets.so.5
#19 0x00007f4565375414 in  () at /usr/lib/libQt5Widgets.so.5
#20 0x00007f45653124e5 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#21 0x00007f456531be11 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#22 0x00007f4564958d12 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#23 0x00007f4564cf4da4 in QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) () at /usr/lib/libQt5Gui.so.5
#24 0x00007f4564cf664b in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () at /usr/lib/libQt5Gui.so.5
#25 0x00007f4564cd0b0c in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Gui.so.5
#26 0x00007f455fd2b0ec in  () at /usr/lib/libQt5XcbQpa.so.5
#27 0x00007f4562aa73ee in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0
#28 0x00007f4562aa9201 in  () at /usr/lib/libglib-2.0.so.0
#29 0x00007f4562aa9241 in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#30 0x00007f45649b0b13 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#31 0x00007f456495783c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#32 0x00007f456610da0b in ExternalCommand::start(int) () at /usr/lib/libkpmcore.so.8
#33 0x00007f456609d807 in FileSystem::findExternal(QString const&, QStringList const&, int) () at /usr/lib/libkpmcore.so.8
#34 0x00007f45660bf329 in FS::xfs::init() () at /usr/lib/libkpmcore.so.8
#35 0x00007f456609fe63 in FileSystemFactory::init() () at /usr/lib/libkpmcore.so.8
#36 0x00005649a2d9b99a in  ()
#37 0x00007f4564984c20 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5
#38 0x00007f456540bde3 in QAbstractButton::clicked(bool) () at /usr/lib/libQt5Widgets.so.5
#39 0x00007f456540c00c in  () at /usr/lib/libQt5Widgets.so.5
#40 0x00007f456540d412 in  () at /usr/lib/libQt5Widgets.so.5
#41 0x00007f456540d5d6 in QAbstractButton::mouseReleaseEvent(QMouseEvent*) () at /usr/lib/libQt5Widgets.so.5
#42 0x00007f4565356096 in QWidget::event(QEvent*) () at /usr/lib/libQt5Widgets.so.5
#43 0x00007f45653124e5 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#44 0x00007f456531bf8a in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#45 0x00007f4564958d12 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#46 0x00007f456531b12b in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool, bool) () at /usr/lib/libQt5Widgets.so.5
#47 0x00007f4565372371 in  () at /usr/lib/libQt5Widgets.so.5
#48 0x00007f4565375414 in  () at /usr/lib/libQt5Widgets.so.5
#49 0x00007f45653124e5 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#50 0x00007f456531be11 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#51 0x00007f4564958d12 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#52 0x00007f4564cf4da4 in QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) () at /usr/lib/libQt5Gui.so.5
#53 0x00007f4564cf664b in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () at /usr/lib/libQt5Gui.so.5
#54 0x00007f4564cd0b0c in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Gui.so.5
#55 0x00007f455fd2b0ec in  () at /usr/lib/libQt5XcbQpa.so.5
#56 0x00007f4562aa73ee in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0
#57 0x00007f4562aa9201 in  () at /usr/lib/libglib-2.0.so.0
#58 0x00007f4562aa9241 in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#59 0x00007f45649b0b13 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#60 0x00007f456495783c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#61 0x00007f456610da0b in ExternalCommand::start(int) () at /usr/lib/libkpmcore.so.8
#62 0x00007f456609d807 in FileSystem::findExternal(QString const&, QStringList const&, int) () at /usr/lib/libkpmcore.so.8
#63 0x00007f456609685b in FS::ext2::init() () at /usr/lib/libkpmcore.so.8
#64 0x00007f456609fe63 in FileSystemFactory::init() () at /usr/lib/libkpmcore.so.8
#65 0x00005649a2d9b99a in  ()
#66 0x00007f4564984c20 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5
#67 0x00007f456540bde3 in QAbstractButton::clicked(bool) () at /usr/lib/libQt5Widgets.so.5
#68 0x00007f456540c00c in  () at /usr/lib/libQt5Widgets.so.5
#69 0x00007f456540d412 in  () at /usr/lib/libQt5Widgets.so.5
#70 0x00007f456540d5d6 in QAbstractButton::mouseReleaseEvent(QMouseEvent*) () at /usr/lib/libQt5Widgets.so.5
#71 0x00007f4565356096 in QWidget::event(QEvent*) () at /usr/lib/libQt5Widgets.so.5
#72 0x00007f45653124e5 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#73 0x00007f456531bf8a in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#74 0x00007f4564958d12 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#75 0x00007f456531b12b in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool, bool) () at /usr/lib/libQt5Widgets.so.5
#76 0x00007f4565372371 in  () at /usr/lib/libQt5Widgets.so.5
#77 0x00007f4565375414 in  () at /usr/lib/libQt5Widgets.so.5
#78 0x00007f45653124e5 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#79 0x00007f456531be11 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#80 0x00007f4564958d12 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#81 0x00007f4564cf4da4 in QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) () at /usr/lib/libQt5Gui.so.5
#82 0x00007f4564cf664b in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () at /usr/lib/libQt5Gui.so.5
#83 0x00007f4564cd0b0c in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Gui.so.5
#84 0x00007f455fd2b0ec in  () at /usr/lib/libQt5XcbQpa.so.5
#85 0x00007f4562aa73ee in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0
#86 0x00007f4562aa9201 in  () at /usr/lib/libglib-2.0.so.0
#87 0x00007f4562aa9241 in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#88 0x00007f45649b0b13 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#89 0x00007f456495783c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#90 0x00007f456610da0b in ExternalCommand::start(int) () at /usr/lib/libkpmcore.so.8
#91 0x00007f456609d807 in FileSystem::findExternal(QString const&, QStringList const&, int) () at /usr/lib/libkpmcore.so.8
#92 0x00007f4566098d53 in FS::f2fs::init() () at /usr/lib/libkpmcore.so.8
#93 0x00007f456609fe63 in FileSystemFactory::init() () at /usr/lib/libkpmcore.so.8
#94 0x00005649a2d9b99a in  ()
#95 0x00007f4564984c20 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5
#96 0x00007f456540bde3 in QAbstractButton::clicked(bool) () at /usr/lib/libQt5Widgets.so.5
#97 0x00007f456540c00c in  () at /usr/lib/libQt5Widgets.so.5
#98 0x00007f456540d412 in  () at /usr/lib/libQt5Widgets.so.5
#99 0x00007f456540d5d6 in QAbstractButton::mouseReleaseEvent(QMouseEvent*) () at /usr/lib/libQt5Widgets.so.5
#100 0x00007f4565356096 in QWidget::event(QEvent*) () at /usr/lib/libQt5Widgets.so.5
#101 0x00007f45653124e5 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#102 0x00007f456531bf8a in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#103 0x00007f4564958d12 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#104 0x00007f456531b12b in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool, bool) () at /usr/lib/libQt5Widgets.so.5
#105 0x00007f4565372371 in  () at /usr/lib/libQt5Widgets.so.5
#106 0x00007f4565375414 in  () at /usr/lib/libQt5Widgets.so.5
#107 0x00007f45653124e5 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#108 0x00007f456531be11 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#109 0x00007f4564958d12 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#110 0x00007f4564cf4da4 in QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) () at /usr/lib/libQt5Gui.so.5
#111 0x00007f4564cf664b in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () at /usr/lib/libQt5Gui.so.5
#112 0x00007f4564cd0b0c in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Gui.so.5
#113 0x00007f455fd2b0ec in  () at /usr/lib/libQt5XcbQpa.so.5
#114 0x00007f4562aa73ee in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0
#115 0x00007f4562aa9201 in  () at /usr/lib/libglib-2.0.so.0
#116 0x00007f4562aa9241 in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#117 0x00007f45649b0b13 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#118 0x00007f456495783c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#119 0x00007f456610da0b in ExternalCommand::start(int) () at /usr/lib/libkpmcore.so.8
#120 0x00007f456609d807 in FileSystem::findExternal(QString const&, QStringList const&, int) () at /usr/lib/libkpmcore.so.8
#121 0x00007f45660967d7 in FS::ext2::init() () at /usr/lib/libkpmcore.so.8
#122 0x00007f456609fe63 in FileSystemFactory::init() () at /usr/lib/libkpmcore.so.8
#123 0x00005649a2d9b99a in  ()
#124 0x00007f4564984c20 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5
#125 0x00007f456540bde3 in QAbstractButton::clicked(bool) () at /usr/lib/libQt5Widgets.so.5
#126 0x00007f456540c00c in  () at /usr/lib/libQt5Widgets.so.5
#127 0x00007f456540d412 in  () at /usr/lib/libQt5Widgets.so.5
#128 0x00007f456540d5d6 in QAbstractButton::mouseReleaseEvent(QMouseEvent*) () at /usr/lib/libQt5Widgets.so.5
#129 0x00007f4565356096 in QWidget::event(QEvent*) () at /usr/lib/libQt5Widgets.so.5
#130 0x00007f45653124e5 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#131 0x00007f456531bf8a in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#132 0x00007f4564958d12 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
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#322 0x00005649a2d7c7a2 in main ()
[Inferior 1 (process 71717) detached]

Possible duplicates by query: bug 413742, bug 413708, bug 413706, bug 413528, bug 413418.

Reported using DrKonqi
Comment 1 Andrius Štikonas 2019-11-18 19:38:17 UTC 
I can reproduce this (but maybe had to click more times).
Comment 2 Andrius Štikonas 2019-11-18 19:45:00 UTC 
(In reply to Andrius Štikonas from comment #1)
> I can reproduce this (but maybe had to click more times).

I think this happens because at the moment FileSystemFactory::init is not reentrant, so new call to it deletes pointers that are still in use by the previous call.
Comment 3 Andrius Štikonas 2019-11-18 20:46:54 UTC 
Git commit bb7bf3ca03edba5c71e0d4b0d398373ec283f551 by Andrius Štikonas.
Committed on 18/11/2019 at 20:45.
Pushed by stikonas into branch 'master'.

Make FileSystemFactory::init reentrant.

M  +40   -38   src/fs/filesystemfactory.cpp

https://invent.kde.org/kde/kpmcore/commit/bb7bf3ca03edba5c71e0d4b0d398373ec283f551