Application: konqueror (4.4.3 (KDE 4.4.3))
KDE Platform Version: 4.4.3 (KDE 4.4.3)
Qt Version: 4.6.2
Operating System: Linux 2.6.34-0.slh.1-sidux-amd64 x86_64
Distribution: Debian GNU/Linux unstable (sid)

-- Information about the crash:
I had two konqueror windows open (the first one runns yet without problemms doing otherthings no flash) the second window with two tabs ceash after i search videos on dailymotion.
It load the wohle page then it crashed I tried it four times only on the third try it doesn't  crash ,till I switch betwenn the tabs and gone one page back (on dailymontion and search again) then it crash a fourd time.

I'll send the other two backtrace too.

The crash can be reproduced some of the time.

 -- Backtrace:
Application: Konqueror (konqueror), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f2c9740a760 (LWP 12164))]

Thread 2 (Thread 0x7f2c7e905910 (LWP 12179)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:220
#1  0x00007f2c949994f2 in QWaitConditionPrivate::wait (this=<value optimized out>, mutex=0x1286c40, time=30000) at thread/qwaitcondition_unix.cpp:85
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x1286c40, time=30000) at thread/qwaitcondition_unix.cpp:159
#3  0x00007f2c9498e929 in QThreadPoolThread::run (this=0x1403190) at concurrent/qthreadpool.cpp:140
#4  0x00007f2c949985c5 in QThreadPrivate::start (arg=0x1403190) at thread/qthread_unix.cpp:248
#5  0x00007f2c9048b7aa in start_thread (arg=<value optimized out>) at pthread_create.c:300
#6  0x00007f2c96ca959d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f2c9740a760 (LWP 12164)):
[KCrash Handler]
#5  0x00007f2c86356cb8 in khtml::RenderObject::renderArena (this=0x1a89fb8) at ../../khtml/rendering/render_object.cpp:2371
#6  0x00007f2c86370ea3 in khtml::RenderText::deleteInlineBoxes (this=0x1a89fb8) at ../../khtml/rendering/render_text.cpp:780
#7  0x00007f2c863412fb in khtml::RenderBlock::layoutInlineChildren (this=0x1a89cc8, relayoutChildren=<value optimized out>, breakBeforeLine=<value optimized out>)
    at ../../khtml/rendering/bidi.cpp:1415
#8  0x00007f2c8634b78d in khtml::RenderBlock::layoutBlock (this=0x1a89cc8, relayoutChildren=true) at ../../khtml/rendering/render_block.cpp:833
#9  0x00007f2c86340729 in khtml::RenderObject::layoutIfNeeded (this=0x1a89b48, relayoutChildren=<value optimized out>, breakBeforeLine=<value optimized out>)
    at ../../khtml/rendering/render_object.h:480
#10 khtml::RenderBlock::layoutInlineChildren (this=0x1a89b48, relayoutChildren=<value optimized out>, breakBeforeLine=<value optimized out>) at ../../khtml/rendering/bidi.cpp:1410
#11 0x00007f2c8634b78d in khtml::RenderBlock::layoutBlock (this=0x1a89b48, relayoutChildren=false) at ../../khtml/rendering/render_block.cpp:833
#12 0x00007f2c86340729 in khtml::RenderObject::layoutIfNeeded (this=0x1a88e78, relayoutChildren=<value optimized out>, breakBeforeLine=<value optimized out>)
    at ../../khtml/rendering/render_object.h:480
#13 khtml::RenderBlock::layoutInlineChildren (this=0x1a88e78, relayoutChildren=<value optimized out>, breakBeforeLine=<value optimized out>) at ../../khtml/rendering/bidi.cpp:1410
#14 0x00007f2c8634b78d in khtml::RenderBlock::layoutBlock (this=0x1a88e78, relayoutChildren=false) at ../../khtml/rendering/render_block.cpp:833
#15 0x00007f2c8634ae3c in khtml::RenderObject::layoutIfNeeded (this=0x1a88db0, relayoutChildren=<value optimized out>) at ../../khtml/rendering/render_object.h:480
#16 khtml::RenderBlock::layoutBlockChildren (this=0x1a88db0, relayoutChildren=<value optimized out>) at ../../khtml/rendering/render_block.cpp:1555
#17 0x00007f2c8634b59d in khtml::RenderBlock::layoutBlock (this=0x1a88db0, relayoutChildren=false) at ../../khtml/rendering/render_block.cpp:835
#18 0x00007f2c86346222 in khtml::RenderObject::layoutIfNeeded (this=0x11b9f80, o=0x1a88db0) at ../../khtml/rendering/render_object.h:480
#19 khtml::RenderBlock::insertFloatingObject (this=0x11b9f80, o=0x1a88db0) at ../../khtml/rendering/render_block.cpp:1954
#20 0x00007f2c86349ccc in khtml::RenderBlock::handleFloatingChild (this=0x11b9f80, child=0x1a88db0, marginInfo=..., handled=@0x0) at ../../khtml/rendering/render_block.cpp:998
#21 0x00007f2c8634a191 in khtml::RenderBlock::handleSpecialChild (this=0x11b9f80, child=0x1a88db0, marginInfo=..., compactInfo=..., handled=@0x7fffe739498f)
    at ../../khtml/rendering/render_block.cpp:971
#22 0x00007f2c8634acc3 in khtml::RenderBlock::layoutBlockChildren (this=0x11b9f80, relayoutChildren=<value optimized out>) at ../../khtml/rendering/render_block.cpp:1518
#23 0x00007f2c8634b59d in khtml::RenderBlock::layoutBlock (this=0x11b9f80, relayoutChildren=false) at ../../khtml/rendering/render_block.cpp:835
#24 0x00007f2c86346222 in khtml::RenderObject::layoutIfNeeded (this=0x11b9eb8, o=0x11b9f80) at ../../khtml/rendering/render_object.h:480
#25 khtml::RenderBlock::insertFloatingObject (this=0x11b9eb8, o=0x11b9f80) at ../../khtml/rendering/render_block.cpp:1954
#26 0x00007f2c86349ccc in khtml::RenderBlock::handleFloatingChild (this=0x11b9eb8, child=0x11b9f80, marginInfo=..., handled=@0x0) at ../../khtml/rendering/render_block.cpp:998
#27 0x00007f2c8634a191 in khtml::RenderBlock::handleSpecialChild (this=0x11b9eb8, child=0x11b9f80, marginInfo=..., compactInfo=..., handled=@0x7fffe7394b2f)
    at ../../khtml/rendering/render_block.cpp:971
#28 0x00007f2c8634acc3 in khtml::RenderBlock::layoutBlockChildren (this=0x11b9eb8, relayoutChildren=<value optimized out>) at ../../khtml/rendering/render_block.cpp:1518
#29 0x00007f2c8634b59d in khtml::RenderBlock::layoutBlock (this=0x11b9eb8, relayoutChildren=false) at ../../khtml/rendering/render_block.cpp:835
#30 0x00007f2c86340729 in khtml::RenderObject::layoutIfNeeded (this=0x11b9df0, relayoutChildren=<value optimized out>, breakBeforeLine=<value optimized out>)
    at ../../khtml/rendering/render_object.h:480
#31 khtml::RenderBlock::layoutInlineChildren (this=0x11b9df0, relayoutChildren=<value optimized out>, breakBeforeLine=<value optimized out>) at ../../khtml/rendering/bidi.cpp:1410
#32 0x00007f2c8634b78d in khtml::RenderBlock::layoutBlock (this=0x11b9df0, relayoutChildren=false) at ../../khtml/rendering/render_block.cpp:833
#33 0x00007f2c86346222 in khtml::RenderObject::layoutIfNeeded (this=0x24f94b8, o=0x11b9df0) at ../../khtml/rendering/render_object.h:480
#34 khtml::RenderBlock::insertFloatingObject (this=0x24f94b8, o=0x11b9df0) at ../../khtml/rendering/render_block.cpp:1954
#35 0x00007f2c86349ccc in khtml::RenderBlock::handleFloatingChild (this=0x24f94b8, child=0x11b9df0, marginInfo=..., handled=@0x0) at ../../khtml/rendering/render_block.cpp:998
#36 0x00007f2c8634a191 in khtml::RenderBlock::handleSpecialChild (this=0x24f94b8, child=0x11b9df0, marginInfo=..., compactInfo=..., handled=@0x7fffe7394fdf)
    at ../../khtml/rendering/render_block.cpp:971
#37 0x00007f2c8634acc3 in khtml::RenderBlock::layoutBlockChildren (this=0x24f94b8, relayoutChildren=<value optimized out>) at ../../khtml/rendering/render_block.cpp:1518
#38 0x00007f2c8634b59d in khtml::RenderBlock::layoutBlock (this=0x24f94b8, relayoutChildren=false) at ../../khtml/rendering/render_block.cpp:835
#39 0x00007f2c8634ae3c in khtml::RenderObject::layoutIfNeeded (this=0x24f9338, relayoutChildren=<value optimized out>) at ../../khtml/rendering/render_object.h:480
#40 khtml::RenderBlock::layoutBlockChildren (this=0x24f9338, relayoutChildren=<value optimized out>) at ../../khtml/rendering/render_block.cpp:1555
#41 0x00007f2c8634b59d in khtml::RenderBlock::layoutBlock (this=0x24f9338, relayoutChildren=false) at ../../khtml/rendering/render_block.cpp:835
#42 0x00007f2c8634ae3c in khtml::RenderObject::layoutIfNeeded (this=0x24f8b20, relayoutChildren=<value optimized out>) at ../../khtml/rendering/render_object.h:480
#43 khtml::RenderBlock::layoutBlockChildren (this=0x24f8b20, relayoutChildren=<value optimized out>) at ../../khtml/rendering/render_block.cpp:1555
#44 0x00007f2c8634b59d in khtml::RenderBlock::layoutBlock (this=0x24f8b20, relayoutChildren=false) at ../../khtml/rendering/render_block.cpp:835
#45 0x00007f2c8634ae3c in khtml::RenderObject::layoutIfNeeded (this=0x1c371f0, relayoutChildren=<value optimized out>) at ../../khtml/rendering/render_object.h:480
#46 khtml::RenderBlock::layoutBlockChildren (this=0x1c371f0, relayoutChildren=<value optimized out>) at ../../khtml/rendering/render_block.cpp:1555
#47 0x00007f2c8634b59d in khtml::RenderBlock::layoutBlock (this=0x1c371f0, relayoutChildren=false) at ../../khtml/rendering/render_block.cpp:835
#48 0x00007f2c8634ae3c in khtml::RenderObject::layoutIfNeeded (this=0x1c36e08, relayoutChildren=<value optimized out>) at ../../khtml/rendering/render_object.h:480
#49 khtml::RenderBlock::layoutBlockChildren (this=0x1c36e08, relayoutChildren=<value optimized out>) at ../../khtml/rendering/render_block.cpp:1555
#50 0x00007f2c8634b59d in khtml::RenderBlock::layoutBlock (this=0x1c36e08, relayoutChildren=false) at ../../khtml/rendering/render_block.cpp:835
#51 0x00007f2c863aa39c in khtml::RenderBody::layout (this=0x1c36e08) at ../../khtml/rendering/render_body.cpp:91
#52 0x00007f2c8634ae3c in khtml::RenderObject::layoutIfNeeded (this=0x1c36c88, relayoutChildren=<value optimized out>) at ../../khtml/rendering/render_object.h:480
#53 khtml::RenderBlock::layoutBlockChildren (this=0x1c36c88, relayoutChildren=<value optimized out>) at ../../khtml/rendering/render_block.cpp:1555
#54 0x00007f2c8634b59d in khtml::RenderBlock::layoutBlock (this=0x1c36c88, relayoutChildren=false) at ../../khtml/rendering/render_block.cpp:835
#55 0x00007f2c8634ae3c in khtml::RenderObject::layoutIfNeeded (this=0x1c36a90, relayoutChildren=<value optimized out>) at ../../khtml/rendering/render_object.h:480
#56 khtml::RenderBlock::layoutBlockChildren (this=0x1c36a90, relayoutChildren=<value optimized out>) at ../../khtml/rendering/render_block.cpp:1555
#57 0x00007f2c8634b59d in khtml::RenderBlock::layoutBlock (this=0x1c36a90, relayoutChildren=false) at ../../khtml/rendering/render_block.cpp:835
#58 0x00007f2c863a5c52 in khtml::RenderCanvas::layout (this=0x1c36a90) at ../../khtml/rendering/render_canvas.cpp:191
#59 0x00007f2c86220354 in KHTMLView::layout (this=0xe61790) at ../../khtml/khtmlview.cpp:1020
#60 0x00007f2c8622096e in KHTMLView::timerEvent (this=0xe61790, e=<value optimized out>) at ../../khtml/khtmlview.cpp:4193
#61 0x00007f2c94a9c873 in QObject::event (this=0xe61790, e=0x7fffe7396370) at kernel/qobject.cpp:1212
#62 0x00007f2c93c0629f in QWidget::event (this=0xe61790, event=0x7fffe7396370) at kernel/qwidget.cpp:8455
#63 0x00007f2c93fac726 in QFrame::event (this=0xe61790, e=0x7fffe7396370) at widgets/qframe.cpp:557
#64 0x00007f2c94037c6b in QAbstractScrollArea::event (this=0xe61790, e=0x7fffe7396370) at widgets/qabstractscrollarea.cpp:989
#65 0x00007f2c86223ee7 in KHTMLView::event (this=0xe61790, e=<value optimized out>) at ../../khtml/khtmlview.cpp:552
#66 0x00007f2c93bb08fc in QApplicationPrivate::notify_helper (this=0x774ac0, receiver=0xe61790, e=0x7fffe7396370) at kernel/qapplication.cpp:4300
#67 0x00007f2c93bb6ddb in QApplication::notify (this=0x7fffe7396820, receiver=0xe61790, e=0x7fffe7396370) at kernel/qapplication.cpp:4183
#68 0x00007f2c95474366 in KApplication::notify (this=0x7fffe7396820, receiver=0xe61790, event=0x7fffe7396370) at ../../kdeui/kernel/kapplication.cpp:302
#69 0x00007f2c94a8cf1c in QCoreApplication::notifyInternal (this=0x7fffe7396820, receiver=0xe61790, event=0x7fffe7396370) at kernel/qcoreapplication.cpp:704
#70 0x00007f2c94ab9a82 in QCoreApplication::sendEvent (this=0x778820) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#71 QTimerInfoList::activateTimers (this=0x778820) at kernel/qeventdispatcher_unix.cpp:603
#72 0x00007f2c94ab6684 in timerSourceDispatch (source=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:184
#73 0x00007f2c8fddb6c2 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#74 0x00007f2c8fddf538 in ?? () from /lib/libglib-2.0.so.0
#75 0x00007f2c8fddf6ec in g_main_context_iteration () from /lib/libglib-2.0.so.0
#76 0x00007f2c94ab6373 in QEventDispatcherGlib::processEvents (this=0x757f80, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:412
#77 0x00007f2c93c603de in QGuiEventDispatcherGlib::processEvents (this=0x1a89fb8, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#78 0x00007f2c94a8b842 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#79 0x00007f2c94a8bc1c in QEventLoop::exec (this=0x7fffe7396610, flags=) at kernel/qeventloop.cpp:201
#80 0x00007f2c94a8f95b in QCoreApplication::exec () at kernel/qcoreapplication.cpp:981
#81 0x00007f2c96ff56bb in kdemain () from /usr/lib/kde4/libkdeinit/libkdeinit4_konqueror.so
#82 0x00007f2c96bfcabd in __libc_start_main (main=<value optimized out>, argc=<value optimized out>, ubp_av=<value optimized out>, init=<value optimized out>, fini=<value optimized out>, 
    rtld_fini=<value optimized out>, stack_end=0x7fffe73971f8) at libc-start.c:222
#83 0x0000000000400699 in _start ()

Reported using DrKonqi