Re: [PATCH][2.4.23-pre3] repair mpparse for default MP systems

[Mathieu Desnoyers]

* Mikael Pettersson (mikpe@xxxxxxxxx) wrote:
> Mathieu,
> 
> This patch for 2.4.23-pre3 should fix the problems your dual
> P5 with default MP config has been having since 2.4.21-pre2.
> Please let us know if it works or not.
> 
> /Mikael
> 

Yes, I just tested this patch, and everything seems to work fine. Thank
you. :)

The only point I see, which is not triggered on my machine (because of
the absence of ACPI) is this one :

There is also an initialization of this mp_irqs variable in
mp_config_acpi_legacy_irqs from mpparse.c. It only seems to be called
from within acpi_boot_init in acpi.c. So I wonder if it's possible that
we do use default configuration and then also go into
mp_config_acpi_legacy_irqs during the acpi init, thus reserving the
memory twice and forgetting the old pointer, which could lead to an
erratic result.

If it's possible, then there is still a problem in there.

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