OpenBSD on 486 - Problem?

[Thomas Ribbrock <emgaron_(_at_)_gmx_(_dot_)_net>]

Hi all!

I have OpenBSD 2.6 up and running on an old 486. The other day, I upgraded
the CPU from a 486DX2/66 (Intel Overdrive) to a SGS-Thompson ST486DX4-100.
The BIOS recognises this CPU as a Cyrix CX486DX-S @ 66MHz . Supposedly, the 
ST468DX4 is the same as a Cyrix Cx486DX4-QP (I think - there aren't too many
resources on these on the web).
OpenBSD, however, recognises it as a Cyrix 486DLC and writes out a warning:

OpenBSD 2.6 (GENERIC) #696: Tue Nov  2 01:46:05 MST 1999
    deraadt_(_at_)_i386_(_dot_)_openbsd_(_dot_)_org:/usr/src/sys/arch/i386/compile/GENERIC
cpu0: Cyrix 486DLC (486-class)
WARNING: CYRIX 486DLC CACHE UNCHANGED.
[...]

I didn't find anything in the list archive or FAQ to that regard, but I did
find something about the warning in the NetBSD FAQ:
"This message indicates the kernel has detected a Cyrix 486DLC and since it
 does not know if it is safe on this machine, the Cyrix special cache
 settings have not been touched. This should only affect the Cyrix '386/486
 hybrid' upgrade for 386 motherboards, and should not apply in any way to
 true 486 (or later) processors from any vendor, including Cyrix."
It then goes on to describe kernel options (CYRIX_CACHE_WORKS and
CYRIX_CACHE_REALLY_WORKS) which one can try to set to improve performance on
these CPUs.

Hence my questions:

1) Am I right in assuming that the same explanation holds true for OpenBSD?
2) The system seems to be running fine with the ST486 - it even seems
   slightly faster than before (subjectively - I haven't done any actual
   measruements). Should I worry about that warning at all? Do I need to
   worry about the mismatch in recognised CPU type vs. real CPU type? I'm
   just a bit surprised, as the 486DLC was some kind of 386/486 hybrid,
   whereas the ST486 is a "true" 486...

Any hints, explanations and/or pointers to docs I've missed are very
welcome! :-)

Thanks in advance,

Thomas
-- 
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      Thomas Ribbrock    http://www.bigfoot.com/~kaytan    ICQ#: 15839919
   "You have to live on the edge of reality - to make your dreams come true!"