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Re: Upgrading the kernel without rebooting?

On Wed, 8 Oct 1997, Tim Sailer wrote:

> > 1. list all types of problems that caused people saying ``reboot every
> >    X monthes''; 

I guess the 2 main reasons are (in no specific order):
a/ Need to move the machine (or power shortage)
b/ Need to upgrade the kernel or sysvinit.
c/ Memory leaks in the kernel/hardware drivers/sysvinit.

> > 2. make sure a Linux system *can* ignore this advice (ie. run a
> >    year or so without a need to reboot); 

for reason a/ it does not depend on Linux or Debian but on the machine's
environment. For reason b/, it's clearly non-trivial to do and involves a
LOT of kernel hacking. For c/, it can be debugged.

BTW, does any1 know of an operating system which can have its kernel
upgrading 'on the fly'? (some embeded system?)

> I've personally ran a machine that lasted 412 days without a reboot, and
> the only reason it was taken down was because we hade to move it.

Is there a known "longest uptime record" ?


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