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SubjectRe: Kernel hot-swap using Kexec, BProc and CC/SMP Clusters.
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On Mon, 2003-05-05 at 12:17, Valdis.Kletnieks@vt.edu wrote:
> On Mon, 05 May 2003 12:00:15 MDT, Steven Cole said:
>
> > Perhaps two uptimes could be kept. The current concept of uptime would
> > remain as is, analogous to the reign of a king (the current kernel), and
> > a new integrated uptime would be analogous to the life of a dynasty. The
> > dynasty uptime would be one of the many things the new kernel learned
> > about on booting. This new dynasty uptime could become quite long if
> > everything keeps on ticking.
>
> Make sure you handle the case of a dynasty that starts on a 2.7.13 kernel
> and is finally deposed by a power failure in 2.7.39.
>
2.7.13 eh? Wow, that's optimistic. I guess Karim and others better get
busy. Unless Linus throws in about 50 kernels with the -preX naming
scheme like this last time. ;)

Here's nice long uptime:

tstad% uptime
12:58pm up 503 days, 1:30, 3 users, load average: 0.23, 0.04, 0.00
tstad% uname -a
ULTRIX tstad 4.3 1 RISC

I guess Ultrix didn't have a jiffie wraparound problem at 497 days.
That DEC 5000/200 has run almost continuously for 12 years, except for
the occasional palace revolution/forest fire fiasco.

Steven


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