evanbro writes: ZDNet is reporting on ksplice, a system for applying patches to the Linux kernel without having to reboot. ksplice requires no kernel modifications, just the source, the config files, and a patch. Author Jeff Arnold discusses the system in a technical overview paper. Ted Ts'o comments, "Users in the carrier grade linux space have been clamoring for this for a while. If you are a carrier in telephony and don't want downtime, this stuff is pure gold."