[Bug 107489] New: Kompare hangs when opening patch file

[Tommi Rantala]

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http://bugs.kde.org/show_bug.cgi?id=107489         
           Summary: Kompare hangs when opening patch file
           Product: kompare
           Version: unspecified
          Platform: Compiled Sources
        OS/Version: Linux
            Status: NEW
          Severity: crash
          Priority: NOR
         Component: general
        AssignedTo: kompare-devel kde org
        ReportedBy: tommi.rantala cs helsinki fi


Version:           trunk rev 425826 (using KDE Devel)
Installed from:    Compiled sources
Compiler:          GCC 3.4.3 
OS:                Linux

For some reason kompare hangs when opening the attached patch file.

$ gdb `which kompare`
GNU gdb 6.3

(gdb) r ~/Bug65019.patch
Starting program: /opt/kde/bin/kompare ~/Bug65019.patch
[Thread debugging using libthread_db enabled]
[New Thread 1097550208 (LWP 26089)]
kompare: Arg Count = 1
kompare: Argument 1: /home/ttrantal/Bug65019.patch
kompare (list view): tabToNumberOfSpaces: 4
kompare (list view): tabToNumberOfSpaces: 4
kompare: resizeEvent
kompare: resizeEvent
kompare: resizeEvent
kompare: resizeEvent
kompare: Single file. so openDiff/openStdin is only possible...
kompare (shell): Url = file:///home/ttrantal/Bug65019.patch
kompare: Encoding: Default
kompare: Encoding : Default
kompare: TextCodec: 0x80dfc98
kompare: TextCodec: 0x80dfc98
kompare (part): Url = file:///home/ttrantal/Bug65019.patch
kompare (part): Download succeeded
kompare (libs): Stupid :) Url = /home/ttrantal/Bug65019.patch
kompare: Codec = 0x80dfc98
kompare (nav view): Models ((nil)) have changed... scanning the models...
kompare (libs): KompareModelList::parseDiffOutput
kompare (libs): Diff is a CVSDiff
kompare (libs): Cleaned up 0 line(s) of crap from the diff...
kompare (libs): It is a CVS generated diff...
kompare (libs): kopete/systemtray.cpp was split into kopete/ and systemtray.cpp
kompare (libs): kopete/systemtray.cpp was split into kopete/ and systemtray.cpp
kompare (libs): kopete/config/behavior/behaviorconfig.cpp was split into kopete/config/behavior/ and behaviorconfig.cpp
kompare (libs): kopete/config/behavior/behaviorconfig.cpp was split into kopete/config/behavior/ and behaviorconfig.cpp
kompare (libs): kopete/config/behavior/behaviorconfig_general.ui was split into kopete/config/behavior/ and behaviorconfig_gen
eral.ui
kompare (libs): kopete/config/behavior/behaviorconfig_general.ui was split into kopete/config/behavior/ and behaviorconfig_gen
eral.ui
kompare (libs): kopete/chatwindow/chatview.cpp was split into kopete/chatwindow/ and chatview.cpp
kompare (libs): kopete/chatwindow/chatview.cpp was split into kopete/chatwindow/ and chatview.cpp
kompare (libs): kopete/chatwindow/kopetechatwindow.cpp was split into kopete/chatwindow/ and kopetechatwindow.cpp
kompare (libs): kopete/chatwindow/kopetechatwindow.cpp was split into kopete/chatwindow/ and kopetechatwindow.cpp
kompare (libs): libkopete/kopetemessageevent.cpp was split into libkopete/ and kopetemessageevent.cpp
kompare (libs): libkopete/kopetemessageevent.cpp was split into libkopete/ and kopetemessageevent.cpp
kompare (libs): libkopete/private/kopeteviewmanager.h was split into libkopete/private/ and kopeteviewmanager.h
kompare (libs): libkopete/private/kopeteviewmanager.h was split into libkopete/private/ and kopeteviewmanager.h
kompare (libs): libkopete/private/kopeteprefs.cpp was split into libkopete/private/ and kopeteprefs.cpp
kompare (libs): libkopete/private/kopeteprefs.cpp was split into libkopete/private/ and kopeteprefs.cpp
kompare (libs): libkopete/private/kopeteprefs.h was split into libkopete/private/ and kopeteprefs.h
kompare (libs): libkopete/private/kopeteprefs.h was split into libkopete/private/ and kopeteprefs.h
kompare (libs): libkopete/private/kopeteviewmanager.cpp was split into libkopete/private/ and kopeteviewmanager.cpp
kompare (libs): libkopete/private/kopeteviewmanager.cpp was split into libkopete/private/ and kopeteviewmanager.cpp
kompare (libs): Modelcount: 10
kompare (libs): Hunkcount:  1
kompare (libs): Diffcount:  1
kompare (libs): Hunkcount:  3
kompare (libs): Diffcount:  6
kompare (libs): Hunkcount:  7
kompare (libs): Diffcount:  9
kompare (libs): Hunkcount:  1
kompare (libs): Diffcount:  1
kompare (libs): Hunkcount:  1
kompare (libs): Diffcount:  1
kompare (libs): Hunkcount:  2
kompare (libs): Diffcount:  2
kompare (libs): Hunkcount:  1
kompare (libs): Diffcount:  1
kompare (libs): Hunkcount:  3
kompare (libs): Diffcount:  6
kompare (libs): Hunkcount:  3
kompare (libs): Diffcount:  6
kompare (libs): Hunkcount:  7
kompare (libs): Diffcount:  9
kompare (libs): KompareModelList::firstModel()
kompare (libs): m_modelIndex = 0
kompare (libs): Ok there are differences...
kompare (libs): DiffModel::firstDifference()
kompare (libs): m_diffIndex = 0
kompare (shell): KompareShell::updateStatusBar()
kompare (libs): KompareModelList::hasPrevModel()
kompare (libs): KompareModelList::hasNextModel()
kompare (libs): KompareModelList::hasPrevModel()
kompare (libs): KompareModelList::hasNextModel()
kompare: KompareModelList::Show Number of models = 10
kompare (nav view): Models (0x8173d68) have changed... scanning the models...
kompare (nav view): BuildTreeInMemory called
kompare (nav view): srcPath  = kopete/
kompare (nav view): destPath = kopete/
kompare (nav view): srcPath  = kopete/config/behavior/
kompare (nav view): destPath = kopete/config/behavior/
kompare (nav view): srcPath  = kopete/config/behavior/
kompare (nav view): destPath = kopete/config/behavior/
kompare (nav view): srcPath  = kopete/chatwindow/
kompare (nav view): destPath = kopete/chatwindow/
kompare (nav view): srcPath  = kopete/chatwindow/
kompare (nav view): destPath = kopete/chatwindow/
kompare (nav view): srcPath  = libkopete/
kompare (nav view): destPath = libkopete/

Program received signal SIGTSTP, Stopped (user).
[Switching to Thread 1097550208 (LWP 26089)]
0x40dd3cb9 in QListViewItem::listView () from /opt/qt/lib/libqt-mt.so.3

Backtrace snippets:

(gdb) bt
#0  0x40dd3cb9 in QListViewItem::listView () from /opt/qt/lib/libqt-mt.so.3
#1  0x405cc324 in KListViewItem::insertItem () from /opt/kde/lib/libkdeui.so.4
#2  0x40dd2fcf in QListViewItem::QListViewItem () from /opt/qt/lib/libqt-mt.so.3
#3  0x405cc229 in KListViewItem::KListViewItem () from /opt/kde/lib/libkdeui.so.4
#4  0x41a5de16 in KDirLVI (this=0x83decb8, parent=0x83debe8, dir= 0xbff45740) at komparenavtreepart.cpp:537
#5  0x41a5e0d8 in KDirLVI::addModel (this=0x83debe8, path= 0xbfffeef0, model=0x824c3f8, modelToDirItemDict=0x81ec044)
    at komparenavtreepart.cpp:574
#6  0x41a5e0fb in KDirLVI::addModel (this=0x83deb18, path= 0xbfffeef0, model=0x824c3f8, modelToDirItemDict=0x81ec044)
    at komparenavtreepart.cpp:577
#7  0x41a5e0fb in KDirLVI::addModel (this=0x83dea48, path= 0xbfffeef0, model=0x824c3f8, modelToDirItemDict=0x81ec044)
    at komparenavtreepart.cpp:577
#8  0x41a5e0fb in KDirLVI::addModel (this=0x83de978, path= 0xbfffeef0, model=0x824c3f8, modelToDirItemDict=0x81ec044)
    at komparenavtreepart.cpp:577
#9  0x41a5e0fb in KDirLVI::addModel (this=0x83de8a8, path= 0xbfffeef0, model=0x824c3f8, modelToDirItemDict=0x81ec044)
    at komparenavtreepart.cpp:577

(gdb) bt -20
#7911 0x41a5e0fb in KDirLVI::addModel (this=0x81f10a8, path= 0xbfffeef0, model=0x824c3f8, modelToDirItemDict=0x81ec044)
    at komparenavtreepart.cpp:577
#7912 0x41a5e0fb in KDirLVI::addModel (this=0x81eed88, path= 0xbfffeef0, model=0x824c3f8, modelToDirItemDict=0x81ec044)
    at komparenavtreepart.cpp:577
#7913 0x41a5e0fb in KDirLVI::addModel (this=0x81eecf8, path= 0xbfffeef0, model=0x824c3f8, modelToDirItemDict=0x81ec044)
    at komparenavtreepart.cpp:577
#7914 0x41a5e0fb in KDirLVI::addModel (this=0x81eec68, path= 0xbfffeef0, model=0x824c3f8, modelToDirItemDict=0x81ec044)
    at komparenavtreepart.cpp:577
#7915 0x41a5e0fb in KDirLVI::addModel (this=0x81ee868, path= 0xbfffeef0, model=0x824c3f8, modelToDirItemDict=0x81ec044)
    at komparenavtreepart.cpp:577
#7916 0x41a5e0fb in KDirLVI::addModel (this=0x81ee750, path= 0xbfffeef0, model=0x824c3f8, modelToDirItemDict=0x81ec044)
    at komparenavtreepart.cpp:577
#7917 0x41a5e0fb in KDirLVI::addModel (this=0x8218328, path= 0xbfffeef0, model=0x824c3f8, modelToDirItemDict=0x81ec044)
    at komparenavtreepart.cpp:577
#7918 0x41a5bbf3 in KompareNavTreePart::buildTreeInMemory (this=0x81ebf90) at komparenavtreepart.cpp:195
#7919 0x41a5b571 in KompareNavTreePart::slotModelsChanged (this=0x81ebf90, modelList=0x8173d68) at komparenavtreepart.cpp:115
#7920 0x41a5edd2 in KompareNavTreePart::qt_invoke (this=0x81ebf90, _id=7, _o=0xbffff030) at komparenavtreepart.moc:184
#7921 0x40cf0514 in QObject::activate_signal () from /opt/qt/lib/libqt-mt.so.3
#7922 0x41a03b5f in KomparePart::modelsChanged (this=0x81935d8, t0=0x8173d68) at kompare_part.moc:196
#7923 0x41a04677 in KomparePart::qt_emit (this=0x81935d8, _id=9, _o=0xbffff130) at kompare_part.moc:356
#7924 0x40cf058c in QObject::activate_signal () from /opt/qt/lib/libqt-mt.so.3
#7925 0x41a2ac9c in Diff2::KompareModelList::modelsChanged (this=0x816b3f8, t0=0x8173d68) at komparemodellist.moc:248
#7926 0x41a29b11 in Diff2::KompareModelList::show (this=0x816b3f8) at komparemodellist.cpp:1171
#7927 0x41a272d1 in Diff2::KompareModelList::openDiff (this=0x816b3f8, diffFile= 0x81936d8) at komparemodellist.cpp:544
#7928 0x41a00eaa in KomparePart::openDiff (this=0x81935d8, url= 0xbffff310) at kompare_part.cpp:208
#7929 0x0805637d in KompareShell::openDiff (this=0x8144078, url= 0xbffff310) at kompare_shell.cpp:196
#7930 0x08053ffd in main (argc=2, argv=0xbffff554) at main.cpp:158