Re: [PATCH] Cyrix setup

Albert D. Cahalan (acahalan@cs.uml.edu)
Sun, 8 Mar 1998 17:58:55 -0500 (EST)


Phil Brutsche writes:
> On Sun, 8 Mar 1998, Jedi/Sector One wrote:

>> Indeed, many Cyrix users use the K.Gadeyne's set6x86 program with
>> a simple rc script in order to enable several 6x86 features at bootup.
>> So why not just merging these initializations in the kernel ?
>
> Ah... sorry, but no. What would happen if someone would use some of
> those performace-enhancing options in the intitialization of the kernel?
> Either:
> a) They would work great and the kernel would be super fast

great

> b) They wouldn't work at all and would completely mess things up
> (lock the machine, interfere with HD operation, I can't recall

as with anything: PCI bridge optimization, 486+ features...

> Besides, what if someone wanted to CHANGE those options?
> They would have to re-compile their kernel every time.
> It's so much more convenient to have the initializations
> in a user-space program.

I find that opinion shocking. It is easy to have multiple
kernels with LILO and loadlin. It is easy to make a simple boot
floppy with the new kernel. Screwed up kernels are no problem.

It is difficult to create a complete rescue disk with all the
tools needed to rescue a system with a screwed up /etc or /lib.
I have a rather lengthy procedure involving a tar file, ramdisk,
ext2 tools, dd, rdev... Maybe an msdos disk with syslinux would
do if /bin/ed is your editor of choice.

This isn't kernel bloat, since it could be freed at boot along
with all the other one-time initialization code.

I'm not even a Cyrix user.

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