Nowadays I tend to push bits of software to my GitHub account.
The following programs are mostly Linux centric.The corefilter tool that makes it possible to keep debugging when a core size limit is set. (2008)
The Driller library, which enables independant, cooperating processes to access memory from one another. (2007)
The kdump2gdb tool that processes a kernel dump produced by kdump. (2006)
Gdb performance patches. (2006)
The IP Personality extension to Netfilter, the Linux packet filter. (2000)
Various Linux kernel patches: