[kde] [Bug 375897] New: Config module crashes when closing window

[Thomas Murach]

https://bugs.kde.org/show_bug.cgi?id=375897

            Bug ID: 375897
           Summary: Config module crashes when closing window
           Product: kde
           Version: unspecified
          Platform: unspecified
                OS: Linux
            Status: UNCONFIRMED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: unassigned-bugs at kde.org
          Reporter: asiasuppenesser at gmx.de
  Target Milestone: ---

Application: kcmshell5 (5.8.95)

Qt Version: 5.8.0
Frameworks Version: 5.30.0
Operating System: Linux 4.4.36-8-default x86_64
Distribution: "openSUSE Leap 42.2"

-- Information about the crash:
- What I was doing when the application crashed:
After editing the network settings dialog invoked by clicking on the top-right
"edit preferences" icon on the network manager widget, I clicked "Apply" and
afterwards "Ok". After "OK" the application crashed.
My gut feeling is that this happens in something like 50% of the cases, but not
always. Maybe a race condition?

The crash can be reproduced sometimes.

-- Backtrace:
Application: Modul für Systemeinstellungen (kcmshell5), signal: Segmentation
fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f2a8effd780 (LWP 11448))]

Thread 3 (Thread 0x7f2a73274700 (LWP 11450)):
#0  0x00007f2a86b3837f in g_main_context_acquire () from
/usr/lib64/libglib-2.0.so.0
#1  0x00007f2a86b391d5 in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f2a86b3942c in g_main_context_iteration () from
/usr/lib64/libglib-2.0.so.0
#3  0x00007f2a8c1118ab in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib64/libQt5Core.so.5
#4  0x00007f2a8c0c16ab in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib64/libQt5Core.so.5
#5  0x00007f2a8bf099aa in QThread::exec() () from /usr/lib64/libQt5Core.so.5
#6  0x00007f2a8da56d15 in ?? () from /usr/lib64/libQt5DBus.so.5
#7  0x00007f2a8bf0e019 in ?? () from /usr/lib64/libQt5Core.so.5
#8  0x00007f2a88eb3734 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f2a8e981d3d in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7f2a7c7ca700 (LWP 11449)):
#0  0x00007f2a8e97949d in poll () from /lib64/libc.so.6
#1  0x00007f2a892d63e2 in ?? () from /usr/lib64/libxcb.so.1
#2  0x00007f2a892d7fcf in xcb_wait_for_event () from /usr/lib64/libxcb.so.1
#3  0x00007f2a7ed24c29 in ?? () from /usr/lib64/libQt5XcbQpa.so.5
#4  0x00007f2a8bf0e019 in ?? () from /usr/lib64/libQt5Core.so.5
#5  0x00007f2a88eb3734 in start_thread () from /lib64/libpthread.so.0
#6  0x00007f2a8e981d3d in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f2a8effd780 (LWP 11448)):
[KCrash Handler]
#6  0x0000000002760ba0 in ?? ()
#7  0x00007f2a8cdaf785 in QWidget::destroy(bool, bool) () from
/usr/lib64/libQt5Widgets.so.5
#8  0x00007f2a8cd76e34 in QApplication::~QApplication() () from
/usr/lib64/libQt5Widgets.so.5
#9  0x00007f2a8ec43595 in KCMShell::~KCMShell (this=0x7ffd40139ee0,
__in_chrg=<optimized out>) at
/usr/src/debug/kde-cli-tools-5.8.95/kcmshell/main.h:32
#10 kdemain (_argc=2, _argv=<optimized out>) at
/usr/src/debug/kde-cli-tools-5.8.95/kcmshell/main.cpp:309
#11 0x00007f2a8e8b86e5 in __libc_start_main () from /lib64/libc.so.6
#12 0x0000000000400799 in _start () at ../sysdeps/x86_64/start.S:118

Reported using DrKonqi

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