[Bug 166157] New: Hang and subsequent crash on cancelling file copy job

[René]

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http://bugs.kde.org/show_bug.cgi?id=166157         
           Summary: Hang and subsequent crash on cancelling file copy job
           Product: kdelibs
           Version: unspecified
          Platform: Compiled Sources
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: crash
          Priority: NOR
         Component: general
        AssignedTo: kdelibs-bugs kde org
        ReportedBy: rkrell gmx net


Version:           KDE 4.00.85 (KDE 4.0.85 (KDE 4.1 >= 20080703) "release 3.3", KDE:KDE4:Factory:Desktop / openSUSE_11.0 (using Devel)
Installed from:    Compiled sources
Compiler:          gcc 
OS:                Linux

The following problem occurs often in Krusader for KDE4, which I prefer to use for file operations:

If copy a file, the copy progress sometimes hangs after the file has already been copied. Clicking on Cancel in the progress popup, the whole application crashes. This comes most probably from the KDE core libs, doesn't it?

Here's the backtrace saved after such a crash:
Application: Krusader (krusader), signal SIGSEGV
[?1034h[Thread debugging using libthread_db enabled]
[New Thread 0xb5b36700 (LWP 2626)]
[New Thread 0xa8b6fb90 (LWP 4285)]
[KCrash handler]
#6  0x08de1c35 in ?? ()
#7  0xb76a28e2 in KAbstractWidgetJobTracker::slotStop ()
   from /usr/lib/libkdeui.so.5
#8  0xb76a35a2 in KWidgetJobTracker::Private::ProgressWidget::_k_stop ()
   from /usr/lib/libkdeui.so.5
#9  0xb76a574b in KWidgetJobTracker::Private::ProgressWidget::qt_metacall ()
   from /usr/lib/libkdeui.so.5
#10 0xb6dfb47a in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#11 0xb6dfb770 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#12 0xb68102a1 in QAbstractButton::clicked () from /usr/lib/libQtGui.so.4
#13 0xb65a1889 in ?? () from /usr/lib/libQtGui.so.4
#14 0xb65a2644 in ?? () from /usr/lib/libQtGui.so.4
#15 0xb65a28a6 in QAbstractButton::mouseReleaseEvent ()
   from /usr/lib/libQtGui.so.4
#16 0xb62fe176 in QWidget::event () from /usr/lib/libQtGui.so.4
#17 0xb65a172e in QAbstractButton::event () from /usr/lib/libQtGui.so.4
#18 0xb6637a60 in QPushButton::event () from /usr/lib/libQtGui.so.4
#19 0xb62abecc in QApplicationPrivate::notify_helper ()
   from /usr/lib/libQtGui.so.4
#20 0xb62b2ca7 in QApplication::notify () from /usr/lib/libQtGui.so.4
#21 0xb76af5dd in KApplication::notify () from /usr/lib/libkdeui.so.5
#22 0xb6de9bc1 in QCoreApplication::notifyInternal ()
   from /usr/lib/libQtCore.so.4
#23 0xb62b3fae in QApplicationPrivate::sendMouseEvent ()
   from /usr/lib/libQtGui.so.4
#24 0xb63111e8 in ?? () from /usr/lib/libQtGui.so.4
#25 0xb63105a4 in QApplication::x11ProcessEvent () from /usr/lib/libQtGui.so.4
#26 0xb63363ae in ?? () from /usr/lib/libQtGui.so.4
#27 0xb6de833a in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#28 0xb6de84fa in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#29 0xb6dea6dd in QCoreApplication::exec () from /usr/lib/libQtCore.so.4
#30 0xb62abd47 in QApplication::exec () from /usr/lib/libQtGui.so.4
#31 0x08090962 in main (argc=5, argv=0xbfde1880)
    at /home/rkrell/src/krusader_kde4/krusader/main.cpp:264
#0  0xffffe430 in __kernel_vsyscall ()