Pasting inline:

#0  0x00995e9e in ?? () from /lib/tls/i686/cmov/libc.so.6
No symbol table info available.
#1  0x00990e93 in vfprintf () from /lib/tls/i686/cmov/libc.so.6
No symbol table info available.
#2  0x00a34cfd in __fprintf_chk () from /lib/tls/i686/cmov/libc.so.6
No symbol table info available.
#3  0x00f812c6 in fprintf (msgType=QtDebugMsg, buf=0x10f4145 "%s\n")
    at /usr/include/bits/stdio2.h:99
No locals.
#4  qt_message_output (msgType=QtDebugMsg, buf=0x10f4145 "%s\n")
    at global/qglobal.cpp:2216
No locals.
#5  0x007c32e7 in KLineEndStrippingDebugStream::writeData (this=0x88ff040, 
    data=0xa1c9e20 "konqueror(3792)/khtml (caret) DOM::Selection::validate: Selection[ Position( 0x96c55e0 \"BODY\" : 0 ) Position( 0x96c55e0 \"BODY\" : 0 ) Position( 0x96c55e0 \"BODY\" : 0 ) Position( 0x96c55e0 \"BODY\" : 0 ) 1"..., 
    len=206) at ../../kdecore/io/kdebug.cpp:180
        buf = {static shared_null = {ref = {_q_value = 3404}, alloc = 0, 
            size = 0, data = 0x80532e0 "", array = ""}, 
          static shared_empty = {ref = {_q_value = 100}, alloc = 0, size = 0, 
            data = 0x11a13bc "", array = ""}, d = 0xa1c9718}
#6  0x0101941e in QIODevice::write (this=0x88ff040, 
    data=0xa1c9e20 "konqueror(3792)/khtml (caret) DOM::Selection::validate: Selection[ Position( 0x96c55e0 \"BODY\" : 0 ) Position( 0x96c55e0 \"BODY\" : 0 ) Position( 0x96c55e0 \"BODY\" : 0 ) Position( 0x96c55e0 \"BODY\" : 0 ) 1"..., 
    maxSize=206) at io/qiodevice.cpp:1324
        d = 0x88fcb58
        written = <value optimised out>
#7  0x0102e225 in QIODevice::write (this=0xa1c9ab8)
    at ../../include/QtCore/../../src/corelib/io/qiodevice.h:127
No locals.
#8  QTextStreamPrivate::flushWriteBuffer (this=0xa1c9ab8)
    at io/qtextstream.cpp:679
        data = {static shared_null = {ref = {_q_value = 3404}, alloc = 0, 
            size = 0, data = 0x80532e0 "", array = ""}, 
          static shared_empty = {ref = {_q_value = 100}, alloc = 0, size = 0, 
            data = 0x11a13bc "", array = ""}, d = 0xa1c9e10}
        bytesWritten = -4773827046635955424
#9  0x0102f482 in flush (stream=...) at io/qtextstream.cpp:2878
No locals.
#10 0x0102f4bc in operator<< (stream=...) at io/qtextstream.h:291
No locals.
#11 endl (stream=...) at io/qtextstream.cpp:2866
No locals.
#12 0x057416d3 in operator<< (this=0xbdbffa68, 
    granularity=DOM::Selection::CHARACTER)
    at /usr/include/qt4/QtCore/qtextstream.h:291
No locals.
#13 QDebug::operator<< (this=0xbdbffa68, 
    granularity=DOM::Selection::CHARACTER)
    at /usr/include/qt4/QtCore/qdebug.h:118
No locals.
#14 DOM::Selection::validate (this=0xbdbffa68, 
    granularity=DOM::Selection::CHARACTER)
    at ../../khtml/xml/dom_selection.cpp:576
        __PRETTY_FUNCTION__ = "void DOM::Selection::validate(DOM::Selection::ETextGranularity)"
        baseAndExtentEqual = false
#15 0x05693dff in KHTMLPart::extendSelectionTo (this=0x8f89010, x=115, y=0, 
    innerNode=...) at ../../khtml/khtml_part.cpp:6249
        pos = {m_node = 0x96c55e0, m_offset = 0}
        sel = {m_base = {m_node = 0x96c55e0, m_offset = 0}, m_extent = {
            m_node = 0x96c55e0, m_offset = 0}, m_start = {m_node = 0x96c55e0, 
            m_offset = 0}, m_end = {m_node = 0x96c55e0, m_offset = 0}, 
          m_state = DOM::Selection::CARET, 
          m_affinity = DOM::Selection::DOWNSTREAM, m_caretX = 0, 
          m_caretY = 0, m_caretSize = 19, m_baseIsStart = true, 
          m_needsCaretLayout = false, m_modifyBiasSet = false, 
          m_visible = false}
#16 0x05693f93 in KHTMLPart::handleMouseMoveEventSelection (this=0x8f89010, 
    event=0xbdc00080) at ../../khtml/khtml_part.cpp:6406
        mouse = <value optimised out>
        innerNode = {_vptr.Node = 0x5bc1808, impl = 0x96c55e0}
#17 0x056a856c in KHTMLPart::khtmlMouseMoveEvent (this=0x8f89010, 
    event=0xbdc00080) at ../../khtml/khtml_part.cpp:6418
No locals.
#18 0x056824ef in KHTMLPart::customEvent (this=0x8f89010, event=0xbdc00080)
    at ../../khtml/khtml_part.cpp:5962
No locals.
#19 0x0109d3fc in QObject::event (this=0x8f89010, e=0x10f4145)
    at kernel/qobject.cpp:1279
No locals.
#20 0x0406a4dc in QApplicationPrivate::notify_helper (this=0x8931a58, 
    receiver=0x8f89010, e=0xbdc00080) at kernel/qapplication.cpp:4300
        consumed = <value optimised out>
#21 0x0407105e in QApplication::notify (this=0xbfdfa264, receiver=0x8f89010, 
    e=0xbdc00080) at kernel/qapplication.cpp:3704
        res = <value optimised out>
#22 0x00d4cefa in KApplication::notify (this=0xbfdfa264, receiver=0x8f89010, 
    event=0xbdc00080) at ../../kdeui/kernel/kapplication.cpp:302
No locals.

Dear Bug Submitter,

This bug has been stagnant for a long time. Could you help us out and re-test if the bug is valid in the latest version? I am setting the status to NEEDSINFO pending your response, please change the Status back to REPORTED when you respond.

Thank you for helping us make KDE software even better for everyone!

Dear Bug Submitter,

This bug has been in NEEDSINFO status with no change for at least
15 days. Please provide the requested information as soon as
possible and set the bug status as REPORTED. Due to regular bug
tracker maintenance, if the bug is still in NEEDSINFO status with
no change in 30 days the bug will be closed as RESOLVED > WORKSFORME
due to lack of needed information.

For more information about our bug triaging procedures please read the
wiki located here:
https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

If you have already provided the requested information, please
mark the bug as REPORTED so that the KDE team knows that the bug is
ready to be confirmed.

Thank you for helping us make KDE software even better for everyone!

This bug has been in NEEDSINFO status with no change for at least
30 days. The bug is now closed as RESOLVED > WORKSFORME
due to lack of needed information.

For more information about our bug triaging procedures please read the
wiki located here:
https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

Thank you for helping us make KDE software even better for everyone!