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List:       kdevelop-bugs
Subject:    [Bug 161507] New: Crash attempting to use memory viewer
From:       Daniel Santos <daniel.santos () pobox ! com>
Date:       2008-05-01 20:02:41
Message-ID: 20080501220240.161507.daniel.santos () pobox ! com
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http://bugs.kde.org/show_bug.cgi?id=161507         
           Summary: Crash attempting to use memory viewer
           Product: kdevelop
           Version: 3.5.1
          Platform: Gentoo Packages
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: crash
          Priority: NOR
         Component: general
        AssignedTo: kdevelop-bugs kdevelop org
        ReportedBy: daniel.santos pobox com


Version:           3.5.1 (using KDE 3.5.9)
Installed from:    Gentoo Packages
Compiler:          gcc 4.2.3 amd64, Gentoo 4.2.3 p1.0
OS:                Linux

I've experimented and although there seems to be a number of ways to reproduce this \
bug, I've documented a certain & repeatable method.

1. Debug -> Start
2. Debug -> Interrupt
3. browse stack frame & variables and find a valid memory address to view (copy to \
clipboard) 4. Debug -> Viewers
5. enter address & number of bytes in "memory view" window and click "OK"
6. right click "memory view" window and select reload, this causes the GDB process to \
exit 7. right click "memory view" window and select close
8. repeat steps 1-4 and get this crash:


(no debugging symbols found) ... a lot of times

[Thread debugging using libthread_db enabled]
[New Thread 0x2b21ee7b5840 (LWP 5655)]
[New Thread 0x41001950 (LWP 5679)]
[New Thread 0x40800950 (LWP 5670)]
(no debugging symbols found) ... several more times

[KCrash handler]
#5  0x00002aaab8236ce0 in KHE::KColumnsView::drawContents ()
   from /usr/kde/3.5/lib64/libkhexeditcommon.so.0
#6  0x00002aaab823a280 in KHE::KHexEdit::drawContents ()
   from /usr/kde/3.5/lib64/libkhexeditcommon.so.0
#7  0x00002b21e9e90ff5 in QScrollView::viewportPaintEvent ()
   from /usr/qt/3/lib64/libqt-mt.so.3
#8  0x00002b21e9e92933 in QScrollView::eventFilter ()
   from /usr/qt/3/lib64/libqt-mt.so.3
#9  0x00002aaab8239ce9 in KHE::KHexEdit::eventFilter ()
   from /usr/kde/3.5/lib64/libkhexeditcommon.so.0
#10 0x00002b21e9d97c42 in QObject::activate_filters ()
   from /usr/qt/3/lib64/libqt-mt.so.3
#11 0x00002b21e9d97c97 in QObject::event () from /usr/qt/3/lib64/libqt-mt.so.3
#12 0x00002b21e9dc9ae3 in QWidget::event () from /usr/qt/3/lib64/libqt-mt.so.3
#13 0x00002b21e9d4239d in QApplication::internalNotify ()
   from /usr/qt/3/lib64/libqt-mt.so.3
#14 0x00002b21e9d42dbe in QApplication::notify ()
   from /usr/qt/3/lib64/libqt-mt.so.3
#15 0x00002b21e89b3e8e in KApplication::notify ()
   from /usr/kde/3.5/lib64/libkdecore.so.4
#16 0x00002b21e9d18421 in QWidget::repaint ()
   from /usr/qt/3/lib64/libqt-mt.so.3
#17 0x00002b21e9d438c4 in QApplication::sendPostedEvents ()
   from /usr/qt/3/lib64/libqt-mt.so.3
#18 0x00002b21e9cf83e1 in QEventLoop::processEvents ()
   from /usr/qt/3/lib64/libqt-mt.so.3
#19 0x00002b21e9d56922 in QEventLoop::enterLoop ()
   from /usr/qt/3/lib64/libqt-mt.so.3
#20 0x00002b21e9d567d2 in QEventLoop::exec ()
   from /usr/qt/3/lib64/libqt-mt.so.3
#21 0x0000000000408b41 in ?? ()
#22 0x00002b21ee4841f4 in __libc_start_main () from /lib/libc.so.6
#23 0x00000000004082a9 in ?? ()
#24 0x00007fffc6adf3d8 in ?? ()
#25 0x0000000000000000 in ?? ()

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