Application: kmail (4.8.0)
KDE Platform Version: 4.8.1 (4.8.1)
Qt Version: 4.8.0
Operating System: Linux 3.0.0-16-generic x86_64
Distribution: Ubuntu 11.10

-- Information about the crash:
- What I was doing when the application crashed:
i started kmail instead of kontact, as kontact behaves extremly slow after upgrade to 4.8.1 with kubuntu backports 11.10
reading and moving mails worked, but when i clicked on New Mail button the application crashed

- Unusual behavior I noticed:
mysqld and virtuose-t process takes very much cpu. KDE at all seems very unstable after the upgrade to 4.8.1

The crash can be reproduced every time.

-- Backtrace:
Application: KMail (kmail), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f89ff8c87c0 (LWP 16185))]

Thread 5 (Thread 0x7f89f5f73700 (LWP 16213)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f8a096d4c2c in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007f8a096d4d59 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007f8a1434defc in start_thread (arg=0x7f89f5f73700) at pthread_create.c:304
#4  0x00007f8a1464659d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7f89f5672700 (LWP 16214)):
#0  0x00007f8a1463a473 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f8a17156240 in ?? () from /opt/lib/libmediaclient.so
#2  0x00007f8a17156a1d in poll () from /opt/lib/libmediaclient.so
#3  0x00007f8a0cdbdf68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f8a0cdbe429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f8a14fcbc06 in QEventDispatcherGlib::processEvents (this=0x15223a0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007f8a14f9b3e2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f8a14f9b637 in QEventLoop::exec (this=0x7f89f5671dc0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f8a14e9b067 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#9  0x00007f8a14e9e08b in QThreadPrivate::start (arg=0x15218c0) at thread/qthread_unix.cpp:298
#10 0x00007f8a1434defc in start_thread (arg=0x7f89f5672700) at pthread_create.c:304
#11 0x00007f8a1464659d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f89ae229700 (LWP 16252)):
#0  0x00007f8a1463a473 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f8a17156240 in ?? () from /opt/lib/libmediaclient.so
#2  0x00007f8a17156a1d in poll () from /opt/lib/libmediaclient.so
#3  0x00007f8a0cdbdf68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f8a0cdbe429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f8a14fcbc06 in QEventDispatcherGlib::processEvents (this=0x10af960, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007f8a14f9b3e2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f8a14f9b637 in QEventLoop::exec (this=0x7f89ae228d90, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f8a14e9b067 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#9  0x00007f8a14f7b17f in QInotifyFileSystemWatcherEngine::run (this=0x182a440) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x00007f8a14e9e08b in QThreadPrivate::start (arg=0x182a440) at thread/qthread_unix.cpp:298
#11 0x00007f8a1434defc in start_thread (arg=0x7f89ae229700) at pthread_create.c:304
#12 0x00007f8a1464659d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f89a61fe700 (LWP 17514)):
#0  0x00007f8a1463a473 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f8a17156240 in ?? () from /opt/lib/libmediaclient.so
#2  0x00007f8a17156a1d in poll () from /opt/lib/libmediaclient.so
#3  0x00007f8a0cdbdf68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f8a0cdbe429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f8a14fcbc06 in QEventDispatcherGlib::processEvents (this=0x4c72220, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007f8a14f9b3e2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f8a14f9b637 in QEventLoop::exec (this=0x7f89a61fdd90, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f8a14e9b067 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#9  0x00007f8a14f7b17f in QInotifyFileSystemWatcherEngine::run (this=0x3410e50) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x00007f8a14e9e08b in QThreadPrivate::start (arg=0x3410e50) at thread/qthread_unix.cpp:298
#11 0x00007f8a1434defc in start_thread (arg=0x7f89a61fe700) at pthread_create.c:304
#12 0x00007f8a1464659d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f89ff8c87c0 (LWP 16185)):
[KCrash Handler]
#6  0x00007f8a157298dc in QTextLine::cursorToX (this=0x7fff3ec1a9e0, cursorPos=0x7fff3ec1aa28, edge=QTextLine::Leading) at text/qtextlayout.cpp:2511
#7  0x00007f8a157069cc in cursorToX (edge=QTextLine::Leading, cursorPos=0, this=0x7fff3ec1a9e0) at ../../include/QtGui/../../src/gui/text/qtextlayout.h:230
#8  QTextControlPrivate::rectForPosition (this=0x3c851c0, position=<optimized out>) at text/qtextcontrol.cpp:1368
#9  0x00007f8a1570a1e8 in QTextControl::ensureCursorVisible (this=<optimized out>) at text/qtextcontrol.cpp:2950
#10 0x00007f8a1570dd83 in QTextControl::setTextCursor (this=0x3223260, cursor=...) at text/qtextcontrol.cpp:833
#11 0x00007f8a108ed327 in Message::KMeditor::replaceSignature (this=0x304ee40, oldSig=..., newSig=...) at ../../messagecomposer/kmeditor.cpp:708
#12 0x00007f8a108dd3c9 in Message::ComposerViewBase::identityChanged (this=0x33e9c70, ident=..., oldIdent=...) at ../../messagecomposer/composerviewbase.cpp:1146
#13 0x00007f8a1611ecf5 in KMComposeWin::slotIdentityChanged (this=0x3c87640, uoid=170918929, initalChange=true) at ../../kmail/kmcomposewin.cpp:2951
#14 0x00007f8a1611fb9b in KMComposeWin::setMsg (this=0x3c87640, newMsg=..., mayAutoSign=true, allowDecryption=<optimized out>, isModified=false) at ../../kmail/kmcomposewin.cpp:1531
#15 0x00007f8a16122ed9 in KMComposeWin::KMComposeWin (this=0x3c87640, aMsg=..., context=<optimized out>, id=<optimized out>, textSelection=<optimized out>, customTemplate=<optimized out>, __in_chrg=<optimized out>, __vtt_parm=<optimized out>) at ../../kmail/kmcomposewin.cpp:453
#16 0x00007f8a16123e55 in KMComposeWin::create (msg=..., context=KMail::Composer::New, identity=170918929, textSelection=..., customTemplate=...) at ../../kmail/kmcomposewin.cpp:168
#17 0x00007f8a160cd960 in KMMainWidget::slotCompose (this=<optimized out>) at ../../kmail/kmmainwidget.cpp:1520
#18 0x00007f8a160ee0dd in KMMainWidget::qt_metacall (this=0x12f1080, _c=QMetaObject::InvokeMetaMethod, _id=42, _a=0x7fff3ec1bda0) at ./kmmainwidget.moc:394
#19 0x00007f8a14fb0be9 in QMetaObject::activate (sender=0x158ffe0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff3ec1bda0) at kernel/qobject.cpp:3566
#20 0x00007f8a154b8c52 in QAction::triggered (this=<optimized out>, _t1=false) at .moc/release-shared/moc_qaction.cpp:277
#21 0x00007f8a154b8e3f in QAction::activate (this=0x158ffe0, event=<optimized out>) at kernel/qaction.cpp:1257
#22 0x00007f8a1588bfba in QAbstractButtonPrivate::click (this=0x1701880) at widgets/qabstractbutton.cpp:528
#23 0x00007f8a1588c26c in QAbstractButton::mouseReleaseEvent (this=0x17015b0, e=0x7fff3ec1c680) at widgets/qabstractbutton.cpp:1121
#24 0x00007f8a15949a3a in QToolButton::mouseReleaseEvent (this=<optimized out>, e=<optimized out>) at widgets/qtoolbutton.cpp:718
#25 0x00007f8a1550f914 in QWidget::event (this=0x17015b0, event=0x7fff3ec1c680) at kernel/qwidget.cpp:8361
#26 0x00007f8a154bf104 in notify_helper (e=0x7fff3ec1c680, receiver=0x17015b0, this=0xc3d8c0) at kernel/qapplication.cpp:4555
#27 QApplicationPrivate::notify_helper (this=0xc3d8c0, receiver=0x17015b0, e=0x7fff3ec1c680) at kernel/qapplication.cpp:4527
#28 0x00007f8a154c492f in QApplication::notify (this=<optimized out>, receiver=0x17015b0, e=0x7fff3ec1c680) at kernel/qapplication.cpp:4098
#29 0x00007f8a16cee9a6 in KApplication::notify (this=0x7fff3ec1d430, receiver=0x17015b0, event=0x7fff3ec1c680) at ../../kdeui/kernel/kapplication.cpp:311
#30 0x00007f8a14f9c5fc in QCoreApplication::notifyInternal (this=0x7fff3ec1d430, receiver=0x17015b0, event=0x7fff3ec1c680) at kernel/qcoreapplication.cpp:876
#31 0x00007f8a154c00d2 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#32 QApplicationPrivate::sendMouseEvent (receiver=0x17015b0, event=0x7fff3ec1c680, alienWidget=0x17015b0, nativeWidget=0x16fc330, buttonDown=0x17015b0, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3166
#33 0x00007f8a1553c765 in QETWidget::translateMouseEvent (this=0x16fc330, event=<optimized out>) at kernel/qapplication_x11.cpp:4613
#34 0x00007f8a1553b62a in QApplication::x11ProcessEvent (this=0x7fff3ec1d430, event=0x7fff3ec1cf40) at kernel/qapplication_x11.cpp:3732
#35 0x00007f8a15564592 in x11EventSourceDispatch (s=0xc41230, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#36 0x00007f8a0cdbda5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#37 0x00007f8a0cdbe258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#38 0x00007f8a0cdbe429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#39 0x00007f8a14fcbb9f in QEventDispatcherGlib::processEvents (this=0xbcdb00, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#40 0x00007f8a1556421e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#41 0x00007f8a14f9b3e2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#42 0x00007f8a14f9b637 in QEventLoop::exec (this=0x7fff3ec1d310, flags=...) at kernel/qeventloop.cpp:204
#43 0x00007f8a14fa06c7 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#44 0x0000000000402bd3 in main (argc=<optimized out>, argv=<optimized out>) at ../../kmail/main.cpp:145

Possible duplicates by query: bug 294222, bug 293105, bug 292851, bug 289478, bug 289370.

Reported using DrKonqi