Application: kontact (4.8.2)
KDE Platform Version: 4.8.2 (4.8.2)
Qt Version: 4.8.1
Operating System: Linux 3.2.0-24-generic-pae i686
Distribution: Ubuntu 12.04 LTS

-- Information about the crash:
kmail crashes during: folder > remove duplicate e-mails. No other programmes running at same time.

The crash can be reproduced some of the time.

-- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0xb2128980 (LWP 2824))]

Thread 5 (Thread 0xb0054b40 (LWP 2825)):
#0  0xb385afb6 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#1  0xb385b52b in g_main_loop_run () from /lib/i386-linux-gnu/libglib-2.0.so.0
#2  0xb0059134 in ?? () from /usr/lib/i386-linux-gnu/gio/modules/libdconfsettings.so
#3  0xb387e673 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb392dd4c in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#5  0xb6028ace in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 4 (Thread 0xaf6ffb40 (LWP 2826)):
#0  0xb385a0d6 in g_main_context_acquire () from /lib/i386-linux-gnu/libglib-2.0.so.0
#1  0xb385af18 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#2  0xb385b52b in g_main_loop_run () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb08f50ea in ?? () from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
#4  0xb387e673 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb392dd4c in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#6  0xb6028ace in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 3 (Thread 0xad5cdb40 (LWP 2828)):
#0  0xb76f9424 in __kernel_vsyscall ()
#1  0xb393196b in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0xb60363dc in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0xb57b4263 in ?? () from /usr/lib/i386-linux-gnu/libQtWebKit.so.4
#4  0xb57b437f in ?? () from /usr/lib/i386-linux-gnu/libQtWebKit.so.4
#5  0xb392dd4c in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#6  0xb6028ace in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 2 (Thread 0xacca4b40 (LWP 2829)):
#0  0xb76f9424 in __kernel_vsyscall ()
#1  0xb601a380 in poll () from /lib/i386-linux-gnu/libc.so.6
#2  0xb3868a3b in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb385b06e in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb385b1c1 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb63788e7 in QEventDispatcherGlib::processEvents (this=0xac300468, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0xb634450d in QEventLoop::processEvents (this=0xacca4270, flags=...) at kernel/qeventloop.cpp:149
#7  0xb63447a9 in QEventLoop::exec (this=0xacca4270, flags=...) at kernel/qeventloop.cpp:204
#8  0xb622d94c in QThread::exec (this=0x85c1618) at thread/qthread.cpp:501
#9  0xb622da3b in QThread::run (this=0x85c1618) at thread/qthread.cpp:568
#10 0xb6230de0 in QThreadPrivate::start (arg=0x85c1618) at thread/qthread_unix.cpp:298
#11 0xb392dd4c in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#12 0xb6028ace in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 1 (Thread 0xb2128980 (LWP 2824)):
[KCrash Handler]
#7  bm_find (skiptable=0xbfb1ae2c '+' <repeats 45 times>, "%\b+", pl=43, puc=0xb4f1a20 "------=_NextPart_000_0076_01CAC29F.D4D68E60", index=<optimized out>, l=<optimized out>, cc=0x9da018 <Address 0x9da018 out of bounds>) at tools/qbytearraymatcher.cpp:67
#8  bm_find (skiptable=0xbfb1ae2c '+' <repeats 45 times>, "%\b+", pl=43, puc=0xb4f1a20 "------=_NextPart_000_0076_01CAC29F.D4D68E60", index=<optimized out>, l=<optimized out>, cc=0x9da018 <Address 0x9da018 out of bounds>) at tools/qbytearraymatcher.cpp:269
#9  qFindByteArrayBoyerMoore (needleLen=43, needle=0xb4f1a20 "------=_NextPart_000_0076_01CAC29F.D4D68E60", haystackOffset=<optimized out>, haystackLen=3197974, haystack=0x9da018 <Address 0x9da018 out of bounds>) at tools/qbytearraymatcher.cpp:259
#10 qFindByteArray (haystack0=0x9da018 <Address 0x9da018 out of bounds>, haystackLen=3197974, from=-1, needle=0xb4f1a20 "------=_NextPart_000_0076_01CAC29F.D4D68E60", needleLen=43) at tools/qbytearraymatcher.cpp:294
#11 0xb6234e16 in QByteArray::indexOf (this=0xbfb1b014, ba=..., from=0) at tools/qbytearray.cpp:2245
#12 0xb32b5a80 in KMime::Parser::MultiPart::parse (this=0xbfb1b014) at ../../kmime/kmime_parsers.cpp:48
#13 0xb32c6bdf in KMime::ContentPrivate::parseMultipart (this=0xb4ed668) at ../../kmime/kmime_content.cpp:1117
#14 0xb32c71d8 in KMime::Content::parse (this=0xb4ebea0) at ../../kmime/kmime_content.cpp:197
#15 0xb32e16eb in KMime::Message::parse (this=0xb4ebea0) at ../../kmime/kmime_message.cpp:51
#16 0xa7aa9b14 in Akonadi::SerializerPluginMail::deserialize (this=0x8ebff48, item=..., label=..., data=..., version=1) at ../../plugins/akonadi_serializer_mail.cpp:83
#17 0xb401e975 in Akonadi::ItemSerializer::deserialize (item=..., label=..., data=..., version=10330178) at ../../akonadi/itemserializer.cpp:102
#18 0xb401efbb in Akonadi::ItemSerializer::deserialize (item=..., label=..., data=..., version=1, external=true) at ../../akonadi/itemserializer.cpp:86
#19 0xb4042f48 in Akonadi::ProtocolHelper::parseItemFetchResult (lineTokens=..., item=..., valuePool=0x9cec438) at ../../akonadi/protocolhelper.cpp:396
#20 0xb4016073 in Akonadi::ItemFetchJob::doHandleResponse (this=0x0, tag=..., data=...) at ../../akonadi/itemfetchjob.cpp:192
#21 0xb402a7ed in Akonadi::JobPrivate::handleResponse (this=0x9425398, tag=..., data=...) at ../../akonadi/job.cpp:80
#22 0xb4065c52 in Akonadi::SessionPrivate::dataReceived (this=0x88f4810) at ../../akonadi/session.cpp:218
#23 0xb635c6b1 in QMetaObject::activate (sender=0x8887f90, m=0xb64a2a58, local_signal_index=0, argv=0x0) at kernel/qobject.cpp:3547
#24 0xb63acb25 in QIODevice::readyRead (this=0x8887f90) at .moc/release-shared/moc_qiodevice.cpp:105
#25 0xb63acccc in QIODevice::qt_static_metacall (_o=0x8887f90, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0xbfb1b8c0) at .moc/release-shared/moc_qiodevice.cpp:54
#26 0xb635c6b1 in QMetaObject::activate (sender=0x890011c, m=0xb64a2a58, local_signal_index=0, argv=0x0) at kernel/qobject.cpp:3547
#27 0xb63acb25 in QIODevice::readyRead (this=0x890011c) at .moc/release-shared/moc_qiodevice.cpp:105
#28 0xb3afda83 in QAbstractSocketPrivate::canReadNotification (this=0x890c2a0) at socket/qabstractsocket.cpp:654
#29 0xb3aeb8f9 in QAbstractSocketEngine::readNotification (this=0x889e0d8) at socket/qabstractsocketengine.cpp:168
#30 0xb3b0668b in event (this=0x890c6d0, e=<optimized out>) at socket/qnativesocketengine.cpp:1151
#31 QReadNotifier::event (this=0x890c6d0, e=0xbfb1bd54) at socket/qnativesocketengine.cpp:1148
#32 0xb68aded4 in notify_helper (e=0xbfb1bd54, receiver=0x890c6d0, this=0x8416510) at kernel/qapplication.cpp:4559
#33 QApplicationPrivate::notify_helper (this=0x8416510, receiver=0x890c6d0, e=0xbfb1bd54) at kernel/qapplication.cpp:4531
#34 0xb68b330d in QApplication::notify (this=0xbfb1bd54, receiver=0x890c6d0, e=0xbfb1bd54) at kernel/qapplication.cpp:4288
#35 0xb7432b21 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#36 0xb634597e in QCoreApplication::notifyInternal (this=0xbfb1c034, receiver=0x890c6d0, event=0xbfb1bd54) at kernel/qcoreapplication.cpp:876
#37 0xb6377f48 in sendEvent (event=0xbfb1bd54, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#38 socketNotifierSourceDispatch (source=0x8415260) at kernel/qeventdispatcher_glib.cpp:110
#39 0xb385acda in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#40 0xb385b0e5 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#41 0xb385b1c1 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#42 0xb6378887 in QEventDispatcherGlib::processEvents (this=0x83ef800, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#43 0xb6966aaa in QGuiEventDispatcherGlib::processEvents (this=0x83ef800, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#44 0xb634450d in QEventLoop::processEvents (this=0xbfb1bf94, flags=...) at kernel/qeventloop.cpp:149
#45 0xb63447a9 in QEventLoop::exec (this=0xbfb1bf94, flags=...) at kernel/qeventloop.cpp:204
#46 0xb6349eba in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#47 0xb68aba74 in QApplication::exec () at kernel/qapplication.cpp:3820
#48 0x0804ac91 in ?? ()
#49 0xb5f574d3 in __libc_start_main () from /lib/i386-linux-gnu/libc.so.6
#50 0x0804b1a1 in _start ()

Reported using DrKonqi