I am getting HUGE amounts of memory usage when using xsltproc with the latest releases of docbook-xsl.
The input XML file is ~563Kb in size.
Versions 1.72.0 & 1.70.1 of docbook-xsl cause xsltproc to consume MORE THAN 1.5 GIGABYTES of memory when outputting in manpage format.
Compare this with version 1.68.1-1 of docbook-xsl (installed from an .rpm for my Fedora 4 system) which consumes ONLY 57 MEGABYTES of memory.
I'm happy to assist debugging this issue, but I'll need some guidance - email me if I can be of use.
The input file I used is here: