Bug 403927

Application: partitionmanager (3.3.1)

Qt Version: 5.9.5
Frameworks Version: 5.44.0
Operating System: Linux 4.15.0-38-generic x86_64
Distribution: Ubuntu 18.04.1 LTS

-- Information about the crash:
- Steps to Replication:
1. Open KDE Partition Manager
2. While the program is scanning, press escape and then Alt+F4 (or just click the Xs twice)
3. The program will crash with "UNHANDLED SIGABRT

The crash can be reproduced every time.

-- Backtrace:
Application: KDE Partition Manager (partitionmanager), signal: Aborted
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f16b31d5840 (LWP 1840))]

Thread 3 (Thread 0x7f166a7fc700 (LWP 2022)):
#0  0x00007f16af07acf6 in __GI_ppoll (fds=0x7f166a7fb7b0, nfds=4, timeout=<optimized out>, sigmask=0x0) at ../sysdeps/unix/sysv/linux/ppoll.c:39
#1  0x00007f16af9bf5c1 in qt_safe_poll(pollfd*, unsigned long, timespec const*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f16af8f0e7b in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f16af8e6aab in QProcess::waitForFinished(int) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f16b2db834e in ExternalCommand::waitFor(int) () at /usr/lib/x86_64-linux-gnu/libkpmcore.so.7
#5  0x00007f16b2db854a in ExternalCommand::run(int) () at /usr/lib/x86_64-linux-gnu/libkpmcore.so.7
#6  0x00007f16b2dba54c in isMounted(QString const&) () at /usr/lib/x86_64-linux-gnu/libkpmcore.so.7
#7  0x00007f16b2d52aef in FileSystem::detectMountStatus(FileSystem*, QString const&) () at /usr/lib/x86_64-linux-gnu/libkpmcore.so.7
#8  0x00007f1696cbd38b in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/libpmlibpartedbackendplugin.so
#9  0x00007f1696cbe34a in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/libpmlibpartedbackendplugin.so
#10 0x00007f1696cbef85 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/libpmlibpartedbackendplugin.so
#11 0x00007f16b2d7daeb in DeviceScanner::scan() () at /usr/lib/x86_64-linux-gnu/libkpmcore.so.7
#12 0x00007f16af78c16d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007f16aafbc6db in start_thread (arg=0x7f166a7fc700) at pthread_create.c:463
#14 0x00007f16af08788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f16976cc700 (LWP 1842)):
#0  0x00007f16af07abf9 in __GI___poll (fds=0x7f1690004db0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f16a9705539 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f16a970564c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f16af9c390b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f16af9689ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f16af78722a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f16ae897d45 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007f16af78c16d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f16aafbc6db in start_thread (arg=0x7f16976cc700) at pthread_create.c:463
#9  0x00007f16af08788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f16b31d5840 (LWP 1840)):
[KCrash Handler]
#4  0x00007f16aefa4e97 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
#5  0x00007f16aefa6801 in __GI_abort () at abort.c:79
#6  0x00007f16af776fa7 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f16af78617d in QThread::~QThread() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f16b2dc3507 in  () at /usr/lib/x86_64-linux-gnu/libkpmcore.so.7
#9  0x00007f16af99719b in QObjectPrivate::deleteChildren() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f16b0722d4c in QWidget::~QWidget() () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#11 0x00007f16b253e73d in KMainWindow::~KMainWindow() () at /usr/lib/x86_64-linux-gnu/libKF5XmlGui.so.5
#12 0x000055e7d0140184 in  ()
#13 0x00007f16af99a140 in QObject::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007f16b0727743 in QWidget::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#15 0x00007f16b083ac4b in QMainWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#16 0x00007f16b2540b87 in KMainWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libKF5XmlGui.so.5
#17 0x00007f16b25859e5 in KXmlGuiWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libKF5XmlGui.so.5
#18 0x00007f16b06e882c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#19 0x00007f16b06f00f4 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#20 0x00007f16af96a9a8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#21 0x00007f16af96d11d in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#22 0x00007f16af9c42c3 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x00007f16a9705387 in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007f16a97055c0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007f16a970564c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#26 0x00007f16af9c38ef in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#27 0x00007f16af9689ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#28 0x00007f16af971a84 in QCoreApplication::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#29 0x000055e7d00e6eef in main ()

Reported using DrKonqi