It looks like you hit the same issue as i did a while ago: http://www.mail-archive.com/solr-user@lucene.apache.org/msg46510.html
On Friday 11 February 2011 08:59:27 Bernd Fehling wrote: > Dear list, > > after loading some documents via DIH which also include urls > I get this yellow XML error page as search result from solr admin GUI > after a search. > It says XML processing error "not well-formed". > The code it argues about is: > > <arr name="dcurls"> > <str>http://eprints.soton.ac.uk/43350/</str> > <str>http://dx.doi.org/doi:10.1112/S0024610706023143</str> > <str>Martinez-Perez, Conchita and Nucinkis, Brita E.A. (2006) Cohomological > dimension of Mackey functors for infinite groups. Journal of the London > Mathematical Society, 74, (2), 379-396. (doi:10.1112/S0024610706023143 > <http://dx.doi.org/10.1112/S002461070602314\uffff>)</str></arr> > > See the \uffff utf8-code in the last line. > > 1. the loaded data is valid, well-formed and checked with xmllint. No > errors. 2. there is no \uffff utf8-code in the source data. > 3. the data is loaded via DIH without any errors. > 4. if opening the source-view of the result page with firefox there is also > no \uffff utf8-code. > > Only idea I have is solr itself or the result page generation. > > How to proceed, what else to check? > > Regards, > Bernd -- Markus Jelsma - CTO - Openindex http://www.linkedin.com/in/markus17 050-8536620 / 06-50258350