After its various recent troubles, fits, and starts, the Fedora rawhide kernels are being built and published frequently again. I thought I'd mention that Rawhide's kernel-doc package is a convenient way to get the utrace documentation (and all the kernel DocBook/kerneldoc stuff) in formatted form for easy reading. e.g. fetch:
http://download.fedora.redhat.com/pub/fedora/linux/development/x86_64/os/Packages/kernel-doc-2.6.27-0.290.rc5.fc10.noarch.rpm This rpm contains only documentation files and doesn't require anything else, so you should have no trouble installing it on some other system flavor (or just rpm2cpio | cpio out its files). Then point a web browser at: file:///usr/share/doc/kernel-doc-2.6.27/Documentation/DocBook/utrace/index.html or you can also do 'man utrace_control' et al. This may be handy even if you build your own utrace-enabled kernel anyway. The 'make htmldocs' and 'make mandocs' build procedures are very slow. Thanks, Roland