On 7 Nov 2002, Eric W. Biederman wrote:
>
> There are currently 2 cases that it would be nice to have work.
> 1) Load a new kernel and immediately execute it.
> 2) Load a new kernel and execute it on panic.
I really don't think (1) is _ever_ a valid thing to do.
The fact is, loading a new kernel wants filesystems and a fully working
system. While executing it wants the filesystems quiescent.
> panic does not call sys_reboot it rolls that functionality by hand.
Forget about panic for now. It's a design issue - it should be possible to
work, but somebody else can do it if the infrastructure is done right.
> In a unified design I can buffer the image in the anonymous pages of a
> user space process just as well as I can in locked down kernel memory.
And in a unified design, I won't apply the patches. It's that simple.
Linus
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This archive was generated by hypermail 2b29 : Thu Nov 07 2002 - 22:00:48 EST