[Bug 165421] New: kompare sometimes crashes on save

[Paul van Erk]

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http://bugs.kde.org/show_bug.cgi?id=165421         
           Summary: kompare sometimes crashes on save
           Product: kompare
           Version: unspecified
          Platform: SuSE RPMs
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: general
        AssignedTo: kompare-devel kde org
        ReportedBy: parena parena net


Version:           3.5.1 (using KDE 4.0.83)
Installed from:    SuSE RPMs
OS:                Linux

Short description says it all: kompare sometimes crashes when saving. I haven't pinned down what it comes to to reproduce it, really. After a few attempts it did work. Different files, sometimes it works straight away, sometimes it crashes once, twice, 3 times, before a successful attempt. This is happening in 3.5.1 (KDE4 beta2). I was comparing 2 local files, but is has happened as well when the source was a file on a sshfs mounted fs and the target was local. Here's the output from the crash handler:

Application: Kompare (kompare), signal SIGSEGV
[?1034h[Thread debugging using libthread_db enabled]
[New Thread 0x7f5b4ca6b700 (LWP 20068)]
[New Thread 0x40cf4950 (LWP 20070)]
[KCrash handler]
#5  0x00007f5b46c1c998 in QX11Info::screen () from /usr/lib64/libQtGui.so.4
#6  0x00007f5b46c14c6d in QWidgetPrivate::create_sys ()
   from /usr/lib64/libQtGui.so.4
#7  0x00007f5b46be667c in QWidget::create () from /usr/lib64/libQtGui.so.4
#8  0x00007f5b46be7b6f in QWidget::winId () from /usr/lib64/libQtGui.so.4
#9  0x00007f5b4adb7495 in KIO::SchedulerPrivate::registerWindow ()
   from /usr/lib64/libkio.so.5
#10 0x00007f5b4adbd384 in KIO::Scheduler::registerWindow ()
   from /usr/lib64/libkio.so.5
#11 0x00007f5b4ada7f69 in KIO::NetAccess::filecopyInternal ()
   from /usr/lib64/libkio.so.5
#12 0x00007f5b4ada8fdb in KIO::NetAccess::upload () from /usr/lib64/libkio.so.5
#13 0x00007f5b4c47877c in Diff2::KompareModelList::saveDestination ()
   from /usr/lib64/libkomparediff2.so.4
#14 0x00007f5b4c478ef6 in Diff2::KompareModelList::saveAll ()
   from /usr/lib64/libkomparediff2.so.4
#15 0x00007f5b41784d10 in KomparePart::queryClose ()
   from /usr/lib64/kde4/libkomparepart.so
#16 0x00007f5b4bd0fd74 in KMainWindow::closeEvent ()
   from /usr/lib64/libkdeui.so.5
#17 0x00007f5b46bebd77 in QWidget::event () from /usr/lib64/libQtGui.so.4
#18 0x00007f5b46eb70fb in QMainWindow::event () from /usr/lib64/libQtGui.so.4
#19 0x00007f5b4bd487f8 in KXmlGuiWindow::event () from /usr/lib64/libkdeui.so.5
#20 0x00007f5b46b9f92d in QApplicationPrivate::notify_helper ()
   from /usr/lib64/libQtGui.so.4
#21 0x00007f5b46ba5cfa in QApplication::notify () from /usr/lib64/libQtGui.so.4
#22 0x00007f5b4bc61d9b in KApplication::notify () from /usr/lib64/libkdeui.so.5
#23 0x00007f5b499cae9c in QCoreApplication::notifyInternal ()
   from /usr/lib64/libQtCore.so.4
#24 0x00007f5b46bec872 in QWidgetPrivate::close_helper ()
   from /usr/lib64/libQtGui.so.4
#25 0x00007f5b46bf0be5 in QApplication::x11ClientMessage ()
   from /usr/lib64/libQtGui.so.4
#26 0x00007f5b46bfc831 in QApplication::x11ProcessEvent ()
   from /usr/lib64/libQtGui.so.4
#27 0x00007f5b46c2057c in ?? () from /usr/lib64/libQtGui.so.4
#28 0x00007f5b499c97f2 in QEventLoop::processEvents ()
   from /usr/lib64/libQtCore.so.4
#29 0x00007f5b499c9985 in QEventLoop::exec () from /usr/lib64/libQtCore.so.4
#30 0x00007f5b499cba25 in QCoreApplication::exec ()
   from /usr/lib64/libQtCore.so.4
#31 0x000000000040a41d in main ()
#0  0x00007f5b453af261 in nanosleep () from /lib64/libc.so.6