Havard Eidnes <he@NetBSD.org> typed:
:Geoff wrote:
:> Multiprocessor corruption under i386 - been around ~forever (well,
:> as long as we've had multiprocessor for i386 branch).
:> I've had it on PentiumII-233MHz, Pentium4-3000, C2D-E6850's.
: OK.  Maybe I should test with that program as well.  However,
: the name service for mersenne.org appears to be inoperational at
: the moment -- ns1.sbsi-net.com doesn't respond, and ns2.* replies
: with SERVFAIL.  Bah!

Also see the thread in port-i386, "fftw_test failing on Core 2 Duo/GENERIC.MP"
which seems to be exhibiting the same symptoms.
I should probably try an unoptimised kernel one of these days to see if it's
some mis-optimisation or whether it's some other missing barrier or flushing
problem or some such.

Regards,
Geoff