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List:       kde-bugs-dist
Subject:    [Bug 139446] New: Crash after canceling verification
From:       Thomas McGuire <Thomas.McGuire () gmx ! net>
Date:       2006-12-31 15:02:15
Message-ID: 20061231160213.139446.Thomas.McGuire () gmx ! net
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http://bugs.kde.org/show_bug.cgi?id=139446         
           Summary: Crash after canceling verification
           Product: k3b
           Version: unspecified
          Platform: Ubuntu Packages
        OS/Version: Linux
            Status: NEW
          Severity: crash
          Priority: NOR
         Component: general
        AssignedTo: trueg k3b org
        ReportedBy: Thomas.McGuire gmx net


Version:           1.0RC2 (using KDE KDE 3.5.5)
Installed from:    Ubuntu Packages
OS:                Linux

I burnt a CD with verification turned on.
Because the verification stalled at ~75% ("Problem while reading. Retrying from \
Sector [..]"), I canceled the verification. The canclatin sound was played and K3B \
tried to show me an error message like "K3B was unable to ..." or whatever, I could \
not read it because then K3B crashed with the following backtrace:


Using host libthread_db library "/lib/libthread_db.so.1".
[Thread debugging using libthread_db enabled]
[New Thread -1234843984 (LWP 7244)]
[New Thread -1257243728 (LWP 8663)]
[KCrash handler]
#5  0xb66ec0b1 in strcmp () from /lib/libc.so.6
#6  0xb7fcd4d6 in K3bDevice::HalConnection::mount (this=0x83ad760, 
    dev=0x83be788, mountPoint= 0x8266524, fstype= 0x8266524, 
    options= 0xbf913a88) at k3bhalconnection.cpp:435
#7  0xb7e3009b in K3b::mount (dev=0x83be788) at k3bglobals.cpp:597
#8  0x080ed86b in K3bAppDeviceManager::mountDisk (this=0x8383248)
    at k3bappdevicemanager.cpp:191
#9  0x080edb97 in K3bAppDeviceManager::mountDisk (this=0x8383248, 
    dev=0x83be788) at k3bappdevicemanager.cpp:275
#10 0x080af34f in K3bDirView::showMediumInfo (this=0x8423608, 
    medium= 0xbf913b94) at k3bdirview.cpp:274
#11 0x080af4c4 in K3bDirView::showDevice (this=0x8423608, dev=0x83be788)
    at k3bdirview.cpp:174
#12 0x080af5b3 in K3bDirView::qt_invoke (this=0x8423608, _id=49, 
    _o=0xbf913c1c) at k3bdirview.moc:184
#13 0xb6ea5a84 in QObject::activate_signal () from /usr/lib/libqt-mt.so.3
#14 0x080a5161 in K3bFileTreeView::deviceExecuted (this=0x8406d80, 
    t0=0x83be788) at k3bfiletreeview.moc:292
#15 0x080a5984 in K3bFileTreeView::slotItemExecuted (this=0x8406d80, 
    item=0x8498d60) at k3bfiletreeview.cpp:572
#16 0x080a8fb8 in K3bFileTreeView::qt_invoke (this=0x8406d80, _id=131, 
    _o=0xbf913d44) at k3bfiletreeview.moc:336
#17 0xb6ea5a84 in QObject::activate_signal () from /usr/lib/libqt-mt.so.3
#18 0xb780fd7e in KListView::executed () from /usr/lib/libkdeui.so.4
#19 0xb7810162 in KListView::emitExecute () from /usr/lib/libkdeui.so.4
#20 0xb78101d2 in KListView::slotMouseButtonClicked ()
   from /usr/lib/libkdeui.so.4
#21 0xb79102fe in KListView::qt_invoke () from /usr/lib/libkdeui.so.4
#22 0xb7bfdf43 in KFileTreeView::qt_invoke () from /usr/lib/libkio.so.4
#23 0x080a90eb in K3bFileTreeView::qt_invoke (this=0x8406d80, _id=95, 
    _o=0xbf913f1c) at k3bfiletreeview.moc:341
#24 0xb6ea5957 in QObject::activate_signal () from /usr/lib/libqt-mt.so.3
#25 0xb7249235 in QListView::mouseButtonClicked () from /usr/lib/libqt-mt.so.3
#26 0xb6fa2d9c in QListView::contentsMouseReleaseEventEx ()
   from /usr/lib/libqt-mt.so.3
#27 0xb6fa2f18 in QListView::contentsMouseReleaseEvent ()
   from /usr/lib/libqt-mt.so.3
#28 0xb77e2d43 in KListView::contentsMouseReleaseEvent ()
   from /usr/lib/libkdeui.so.4
#29 0xb6fdafcf in QScrollView::viewportMouseReleaseEvent ()
   from /usr/lib/libqt-mt.so.3
#30 0xb6fdc566 in QScrollView::eventFilter () from /usr/lib/libqt-mt.so.3
#31 0xb6fa4816 in QListView::eventFilter () from /usr/lib/libqt-mt.so.3
#32 0xb6ea4f04 in QObject::activate_filters () from /usr/lib/libqt-mt.so.3
#33 0xb6ea4f82 in QObject::event () from /usr/lib/libqt-mt.so.3
#34 0xb6edc65b in QWidget::event () from /usr/lib/libqt-mt.so.3
#35 0xb6e3cb88 in QApplication::internalNotify () from /usr/lib/libqt-mt.so.3
#36 0xb6e3ed46 in QApplication::notify () from /usr/lib/libqt-mt.so.3
#37 0xb75ecdb2 in KApplication::notify () from /usr/lib/libkdecore.so.4
#38 0xb6dcf3fd in QApplication::sendSpontaneousEvent ()
   from /usr/lib/libqt-mt.so.3
#39 0xb6dce062 in QETWidget::translateMouseEvent ()
   from /usr/lib/libqt-mt.so.3
#40 0xb6dcc14c in QApplication::x11ProcessEvent () from /usr/lib/libqt-mt.so.3
#41 0xb6de3320 in QEventLoop::processEvents () from /usr/lib/libqt-mt.so.3
#42 0xb6e5725e in QEventLoop::enterLoop () from /usr/lib/libqt-mt.so.3
#43 0xb6e5706e in QEventLoop::exec () from /usr/lib/libqt-mt.so.3
#44 0xb6e3e731 in QApplication::exec () from /usr/lib/libqt-mt.so.3
#45 0x080b9fcc in main (argc=2, argv=0xbf914ef4) at main.cpp:142

I was unable to reproduce this bug again, sorry.

On a side note, some things which might be related to this:
- A was not able to correctly verify a CD/DVD with K3B 1.0RC2, it either stalls or \
                fails after some reading problems. However, I've only burnt ~4 media \
                so far.
- The KDE media manager is not disabled for verification. After burning, ejecting and \
loading again, the KDE media dialog pops up, and no matter what I do, mounts the \
media. K3B verifies nevertheless, but I imagine this could be a problem. Should I \
open a separate bug report for this?

This is with K3B 1.0RC2


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