Version:           2.12 (using 4.2.2 (KDE 4.2.2), Debian packages)
Compiler:          cc
OS:                Linux (x86_64) release 2.6.29-toi3

Hello:

  I've seen this is similar to:
https://bugs.kde.org/show_bug.cgi?id=189142
http://bugs.kde.org/show_bug.cgi?id=180321

  Possibly it's the same issue, but I wasn't totally sure and I'm opening a new bug.

  What I did is downloading http://ftp1.srv.endpoint.nu/pub/repository/t3ch/STABLE/XBMC-9.04-FINAL-T3CH/XBMC-9.04-BABYLON-FINAL-T3CH.rar and then right click on konqueror: "extract here, autodetect folder" then ark crashed.

Aplicación: Ark (ark), señal SIGSEGV
0x00007f6141144831 in nanosleep () from /lib/libc.so.6
Current language:  auto; currently c
[Current thread is 0 (LWP 27743)]

Thread 3 (Thread 0x7f61389bb950 (LWP 27744)):
#0  0x00007f613d70dfb9 in g_main_context_prepare () from /usr/lib/libglib-2.0.so.0
#1  0x00007f613d70e35f in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007f613d70e7dc in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007f61418864de in QEventDispatcherGlib::processEvents (this=0x265ecc0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:326
#4  0x00007f614185b6f2 in QEventLoop::processEvents (this=<value optimized out>, flags={i = 949724016}) at kernel/qeventloop.cpp:149
#5  0x00007f614185babd in QEventLoop::exec (this=0x7f61389ba3c0, flags={i = 949724288}) at kernel/qeventloop.cpp:200
#6  0x00007f6138dcea55 in RARInterface::executeRarProcess (this=0x25c4d20, rarPath=@0x7f61389ba520, args=@0x7f61389ba510) at ../../../../ark/plugins/rarplugin/rarplugin.cpp:463
#7  0x00007f6138dceda7 in RARInterface::list (this=0x25c4d20) at ../../../../ark/plugins/rarplugin/rarplugin.cpp:98
#8  0x00007f6143940f6f in Kerfuffle::ListJob::doWork (this=0x2677190) at ../../../ark/kerfuffle/jobs.cpp:126
#9  0x00007f614393cd75 in Kerfuffle::Job::qt_metacall (this=0x2677190, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7f61389ba6c0) at moc_jobs.cpp:80
#10 0x00007f614393ce45 in Kerfuffle::ListJob::qt_metacall (this=0x1, _c=QMetaObject::InvokeMetaMethod, _id=-1, _a=0x0) at moc_jobs.cpp:154
#11 0x00007f6141872862 in QMetaObject::activate (sender=0x7f6134000ba0, from_signal_index=<value optimized out>, to_signal_index=4, argv=0x0) at kernel/qobject.cpp:3120
#12 0x00007f6141877b9f in QSingleShotTimer::timerEvent (this=0x7f6134000ba0) at kernel/qtimer.cpp:298
#13 0x00007f614186cb43 in QObject::event (this=0x7f6134000ba0, e=0x0) at kernel/qobject.cpp:1082
#14 0x00007f6141d2b4fd in QApplicationPrivate::notify_helper (this=0x24ed500, receiver=0x7f6134000ba0, e=0x7f61389bad80) at kernel/qapplication.cpp:4057
#15 0x00007f6141d3377a in QApplication::notify (this=0x7fff4bd6c8d0, receiver=0x7f6134000ba0, e=0x7f61389bad80) at kernel/qapplication.cpp:4022
#16 0x00007f6142e2955b in KApplication::notify (this=0x7fff4bd6c8d0, receiver=0x7f6134000ba0, event=0x7f61389bad80) at ../../kdeui/kernel/kapplication.cpp:307
#17 0x00007f614185ce4c in QCoreApplication::notifyInternal (this=0x7fff4bd6c8d0, receiver=0x7f6134000ba0, event=0x7f61389bad80) at kernel/qcoreapplication.cpp:610
#18 0x00007f614188a036 in QTimerInfoList::activateTimers (this=0x25c85d0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#19 0x00007f614188655d in timerSourceDispatch (source=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:164
#20 0x00007f613d70af7a in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#21 0x00007f613d70e640 in ?? () from /usr/lib/libglib-2.0.so.0
#22 0x00007f613d70e7dc in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#23 0x00007f61418864bf in QEventDispatcherGlib::processEvents (this=0x265ecc0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:324
#24 0x00007f614185b6f2 in QEventLoop::processEvents (this=<value optimized out>, flags={i = 949727168}) at kernel/qeventloop.cpp:149
#25 0x00007f614185babd in QEventLoop::exec (this=0x7f61389bb000, flags={i = 949727248}) at kernel/qeventloop.cpp:200
#26 0x00007f61417717e8 in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:487
#27 0x00007f61439435ad in Kerfuffle::ThreadExecution::run (this=0x2664c10) at ../../../ark/kerfuffle/threading.cpp:50
#28 0x00007f6141774742 in QThreadPrivate::start (arg=0x2664c10) at thread/qthread_unix.cpp:189
#29 0x00007f613d4bcfaa in start_thread (arg=<value optimized out>) at pthread_create.c:300
#30 0x00007f614117429d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#31 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f6133fff950 (LWP 27745)):
#0  0x00007f614116daf2 in select () from /lib/libc.so.6
#1  0x00007f614183b936 in QProcessManager::run (this=0x24f1ed0) at io/qprocess_unix.cpp:305
#2  0x00007f6141774742 in QThreadPrivate::start (arg=0x24f1ed0) at thread/qthread_unix.cpp:189
#3  0x00007f613d4bcfaa in start_thread (arg=<value optimized out>) at pthread_create.c:300
#4  0x00007f614117429d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f6143c2b760 (LWP 27743)):
[KCrash Handler]
#5  QString::indexOf (this=0x26a3450, ch={ucs = 100}, from=<value optimized out>, cs=<value optimized out>) at ../../include/QtCore/../../src/corelib/tools/qstring.h:683
#6  0x00007f6138dcdbd4 in RARInterface::processListLine (this=0x25c4d20, line=@0x2699ba0) at /usr/include/qt4/QtCore/qstring.h:848
#7  0x00007f6138dce551 in RARInterface::readStdout (this=0x25c4d20) at ../../../../ark/plugins/rarplugin/rarplugin.cpp:118
#8  0x00007f6138dcca28 in RARInterface::qt_metacall (this=0x25c4d20, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0x26d6f10) at moc_rarplugin.cpp:71
#9  0x00007f614186ceb8 in QObject::event (this=0x25c4d20, e=0x269f030) at kernel/qobject.cpp:1118
#10 0x00007f6141d2b4fd in QApplicationPrivate::notify_helper (this=0x24ed500, receiver=0x25c4d20, e=0x269f030) at kernel/qapplication.cpp:4057
#11 0x00007f6141d3377a in QApplication::notify (this=0x7fff4bd6c8d0, receiver=0x25c4d20, e=0x269f030) at kernel/qapplication.cpp:4022
#12 0x00007f6142e2955b in KApplication::notify (this=0x7fff4bd6c8d0, receiver=0x25c4d20, event=0x269f030) at ../../kdeui/kernel/kapplication.cpp:307
#13 0x00007f614185ce4c in QCoreApplication::notifyInternal (this=0x7fff4bd6c8d0, receiver=0x25c4d20, event=0x269f030) at kernel/qcoreapplication.cpp:610
#14 0x00007f614185daba in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x24d1de0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#15 0x00007f6141886833 in postEventSourceDispatch (s=<value optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:218
#16 0x00007f613d70af7a in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#17 0x00007f613d70e640 in ?? () from /usr/lib/libglib-2.0.so.0
#18 0x00007f613d70e7dc in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#19 0x00007f61418864bf in QEventDispatcherGlib::processEvents (this=0x24d74f0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:324
#20 0x00007f6141dc3c7f in QGuiEventDispatcherGlib::processEvents (this=0x26a3450, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#21 0x00007f614185b6f2 in QEventLoop::processEvents (this=<value optimized out>, flags={i = 1272365872}) at kernel/qeventloop.cpp:149
#22 0x00007f614185babd in QEventLoop::exec (this=0x7fff4bd6c370, flags={i = 1272365952}) at kernel/qeventloop.cpp:200
#23 0x00007f61439439fa in Kerfuffle::ArchiveBase::listIfNotListed (this=0x265db70) at ../../../ark/kerfuffle/archivebase.cpp:173
#24 0x00007f6143943aa9 in Kerfuffle::ArchiveBase::isSingleFolderArchive (this=0x26a3450) at ../../../ark/kerfuffle/archivebase.cpp:179
#25 0x000000000041098e in BatchExtract::addExtraction (this=0x2654f20, archive=0x265db80, preservePaths=true, destinationFolder=
      {static null = {<No data fields>}, static shared_null = {ref = {_q_value = 2724}, alloc = 0, size = 0, data = 0x618f7a, clean = 0, simpletext = 0, righttoleft = 0, asciiCache = 0, capacity = 0, reserved = 0, array = {0}}, static shared_empty = {ref = {_q_value = 107}, alloc = 0, size = 0, data = 0x7f6141b52ada, clean = 0, simpletext = 0, righttoleft = 0, asciiCache = 0, capacity = 0, reserved = 0, array = {0}}, d = 0x7fff4bd6c7c0, static codecForCStrings = 0x0}) at ../../../ark/app/batchextract.cpp:60
#26 0x0000000000411608 in BatchExtract::start (this=0x2654f20) at ../../../ark/app/batchextract.cpp:127
#27 0x000000000040c6ec in main (argc=5, argv=0x7fff4bd6d5b8) at ../../../ark/app/main.cpp:201

I was curious and I got that line parameter in RARInterface::processListLine was " XBMC-9.04-BABYLON-FINAL-T3CH/XBMC/scripts/T3CH Upgrader/resources/language/French/strings.xml" maybe blank spaces turn ark mad.

HTH.