On Fri, Nov 03, 2000 at 08:33:36PM -0600, Peter Samuelson wrote:
>
> [Jeff Merkey]
> > Is this what is causing the lockup problems on 2.4.0-pre-10 with
> > PPro, or something else. Looks like something else.
>
> Yeah, it does, doesn't it. If this particular patch cured a
> kernel-side lockup I would be very surprised. Because the only effect
> this patch is *supposed* to have is the visibility of certain kernel
> header code when compiling userspace programs.
>
> HPA, for what it's worth, which isn't much, I think your patch is
> spot-on..
I got a little further with the lock up problem, and it is related to
MPS reporting a 2nd processor being present in some PPro systems
when in fact only one CPU is really installed (but MPS is reporting default
table entry 6 with a second CPU as present). What seems to be different
here is that on this system, NT and NetWare both timeout on attempts
to activate the non-existent CPU, while 2.4 hard hangs after sending
a STARTUP_IPI command. hpa does some work on the APIC code I've noticed,
so I thought I'd ask him about it.
Jeff
>
> Peter
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