Version:            (using KDE KDE 3.5.5)
Installed from:    Debian stable Packages

Reported in Debian BTS at http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=426706
Sometimes Konqueror crashes when many tabs are open, I can't exactly
specify how many but I estimate a number around 30. The last time this
happened I had many tabs from wiki.piratenpartei.de open. This is the
backtrace from the KDE crashhandler:

Using host libthread_db library "/lib/libthread_db.so.1".
[Thread debugging using libthread_db enabled]
[New Thread 47491507742560 (LWP 5606)]
[KCrash handler]
#5  khtml::RenderBox::containingBlockWidth (this=<value optimized out>)
    at
/build/buildd/kdelibs-3.5.5a.dfsg.1/./khtml/rendering/render_box.cpp:711
#6  0x00002b317c2b651c in khtml::RenderBox::calcReplacedWidthUsing (
    this=0x33ade60, widthType=khtml::Width)
    at
/build/buildd/kdelibs-3.5.5a.dfsg.1/./khtml/rendering/render_box.cpp:1180
#7  0x00002b317c2b658d in khtml::RenderBox::calcReplacedWidth
(this=0x33ade60)
    at
/build/buildd/kdelibs-3.5.5a.dfsg.1/./khtml/rendering/render_box.cpp:1152
#8  0x00002b317c2bb31d in khtml::RenderReplaced::calcMinMaxWidth (
    this=0x33ade60)
    at
/build/buildd/kdelibs-3.5.5a.dfsg.1/./khtml/rendering/render_replaced.cpp:73
#9  0x00002b317c2cb901 in khtml::RenderObject::recalcMinMaxWidths (
    this=0x3a719f8)
    at
/build/buildd/kdelibs-3.5.5a.dfsg.1/./khtml/rendering/render_object.cpp:1969
#10 0x00002b317c2cb8af in khtml::RenderObject::recalcMinMaxWidths (
    this=0x3a71900)
    at
/build/buildd/kdelibs-3.5.5a.dfsg.1/./khtml/rendering/render_object.cpp:1955
#11 0x00002b317c2cb8af in khtml::RenderObject::recalcMinMaxWidths (
    this=0x3a71708)
    at
/build/buildd/kdelibs-3.5.5a.dfsg.1/./khtml/rendering/render_object.cpp:1955
#12 0x00002b317c2cb8af in khtml::RenderObject::recalcMinMaxWidths (
    this=0x3a1ade8)
    at
/build/buildd/kdelibs-3.5.5a.dfsg.1/./khtml/rendering/render_object.cpp:1955
#13 0x00002b317c2cb8af in khtml::RenderObject::recalcMinMaxWidths (
    this=0x3a19eb8)
    at
/build/buildd/kdelibs-3.5.5a.dfsg.1/./khtml/rendering/render_object.cpp:1955
#14 0x00002b317c2cb8af in khtml::RenderObject::recalcMinMaxWidths (
    this=0x33803b0)
    at
/build/buildd/kdelibs-3.5.5a.dfsg.1/./khtml/rendering/render_object.cpp:1955
#15 0x00002b317c2cb8af in khtml::RenderObject::recalcMinMaxWidths (
    this=0x3380308)
    at
/build/buildd/kdelibs-3.5.5a.dfsg.1/./khtml/rendering/render_object.cpp:1955
#16 0x00002b317c2cb8af in khtml::RenderObject::recalcMinMaxWidths (
    this=0x33801e8)
    at
/build/buildd/kdelibs-3.5.5a.dfsg.1/./khtml/rendering/render_object.cpp:1955
#17 0x00002b317c2cb8af in khtml::RenderObject::recalcMinMaxWidths (
    this=0x337f548)
    at
/build/buildd/kdelibs-3.5.5a.dfsg.1/./khtml/rendering/render_object.cpp:1955
#18 0x00002b317c2cb8af in khtml::RenderObject::recalcMinMaxWidths (
    this=0x337f3e0)
    at
/build/buildd/kdelibs-3.5.5a.dfsg.1/./khtml/rendering/render_object.cpp:1955
#19 0x00002b317c2cb8af in khtml::RenderObject::recalcMinMaxWidths (
    this=0x337f210)
    at
/build/buildd/kdelibs-3.5.5a.dfsg.1/./khtml/rendering/render_object.cpp:1955
#20 0x00002b317c30d01e in khtml::RenderCanvas::layout (this=0x337f210)
    at
/build/buildd/kdelibs-3.5.5a.dfsg.1/./khtml/rendering/render_canvas.cpp:174
#21 0x00002b317c23f2db in KHTMLView::layout (this=0x32df8c0)
    at /build/buildd/kdelibs-3.5.5a.dfsg.1/./khtml/khtmlview.cpp:829
#22 0x00002b317c23fc70 in KHTMLView::timerEvent (this=0x33ade60, e=0x0)
    at /build/buildd/kdelibs-3.5.5a.dfsg.1/./khtml/khtmlview.cpp:3378
#23 0x00002b31789322e7 in QObject::event (this=0x32df8c0, e=0x7fff3504a8e0)
    at kernel/qobject.cpp:741
#24 0x00002b31789670bb in QWidget::event (this=0x32df8c0, e=0x7fff3504a8e0)
    at kernel/qwidget.cpp:4678
#25 0x00002b31788ce262 in QApplication::internalNotify
(this=0x7fff3504ad70,
    receiver=0x32df8c0, e=0x7fff3504a8e0) at kernel/qapplication.cpp:2635
#26 0x00002b31788d0b1b in QApplication::notify (this=0x7fff3504ad70,
    receiver=0x32df8c0, e=0x7fff3504a8e0) at kernel/qapplication.cpp:2523
#27 0x00002b3177a858be in KApplication::notify (this=0x7fff3504ad70,
    receiver=0x32df8c0, event=0x7fff3504a8e0)
    at /build/buildd/kdelibs-3.5.5a.dfsg.1/./kdecore/kapplication.cpp:550
#28 0x00002b3178861802 in QApplication::sendEvent (receiver=0x32df8c0,
    event=0x7fff3504a8e0) at ../include/qapplication.h:520
#29 0x00002b31788c157c in QEventLoop::activateTimers (this=0x55b1d0)
    at kernel/qeventloop_unix.cpp:556
#30 0x00002b3178875584 in QEventLoop::processEvents (this=0x55b1d0, flags=4)
    at kernel/qeventloop_x11.cpp:389
#31 0x00002b31788e77ee in QEventLoop::enterLoop (this=0x55b1d0)
    at kernel/qeventloop.cpp:198
#32 0x00002b31788e75f7 in QEventLoop::exec (this=0x55b1d0)
    at kernel/qeventloop.cpp:145
#33 0x00002b31788cfd40 in QApplication::exec (this=0x7fff3504ad70)
    at kernel/qapplication.cpp:2758
#34 0x00002b3175c38a9e in kdemain (argc=<value optimized out>,
    argv=<value optimized out>)
    at /build/buildd/kdebase-3.5.5a.dfsg.1/./konqueror/konq_main.cc:206
#35 0x00002b31762284ca in __libc_start_main () from /lib/libc.so.6
#36 0x000000000040051a in _start () at ../sysdeps/x86_64/elf/start.S:113