Long uptimes.

[Brian Simons]

On Wed, 2009-11-18 at 09:46 -0700, Michael Torrie wrote:
> Steven Alligood wrote:
> But even on linux, a kernel update requires a reboot.  Often the kernel
> update is critical because of a local exploit that it fixes.  Why do we
> have to reboot just to patch a kernel?  Sure it sounds complicated to
> patch a running kernel, but if I recall there were systems in the 70s
> that could do this.  There must be mechanisms that could be used to
> facilitate this in modern Linux kernels.

I haven't used this personally, but I hear it works well and is
supported at least by Ubuntu:

http://en.wikipedia.org/wiki/Ksplice
http://www.ksplice.com/