Date: Wed, 21 Apr 1999 22:52:06 +0800 From: Peter Wemm <peter@netplex.com.au> To: "Daniel J. O'Connor" <darius@dons.net.au> Cc: freebsd-smp@freebsd.org Subject: Re: Really slow SMP Message-ID: <19990421145208.8A7571F2A@spinner.netplex.com.au> In-Reply-To: Your message of "Wed, 21 Apr 1999 21:35:50 %2B0930." <XFMail.990421213550.darius@dons.net.au>
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"Daniel J. O'Connor" wrote:
> Well, the subject says it all :)
>
> I have a dual pii-350 system, and I updated to -current on the 13th, it was
> running -current before (on the 7th or so).
>
> It was working on 7th April 20:00, and was broken on the 8th April 22:00.
> (These times are CST which is 10:30 hrs ahead of GMT)
>
> It didn't compile on the 8th at 00:00 (missing getmtrr() and friends)
>
> The diff's between those two dates have only one 'interesting' thing.. all th
e
> getmtrr() et al calls where #if'd out.
>
> Hmm, well now I feel like I have 2 and 2 and it doesn't add up to 4 =)
Hmm! Also, consider this from my dmesg:
[..]
Preloaded elf kernel "kernel" at 0xc02c8000.
Pentium Pro MTRR support enabled, default memory type is uncacheable
Probing for PnP devices:
[..]
Memory type is uncacheable?!? Is that saying what it sounds like?
(There is no MTRR synchronization like there was before. Previously the
BSP would dump all it's MTRR registers to a table and all the other AP
cpus would load that table on startup. That table doesn't exist anymore.)
Cheers,
-Peter
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