Re: smp_num_cpus redefined? (compiling 2.2.18 for non-SMP?)

From: J . A . Magallon (
Date: Tue Feb 06 2001 - 18:59:20 EST

On 02.07 Juraj Bednar wrote:
> Hello,
> the same for vanilla 2.4.1 and 2.4.1ac3. Everything works ok until I turn
> off SMP
> support (which is required to make it possible to turn off the machine using
> APM, since
> ACPI is completely broken in 2.4.1 for me).

You do not need to do that. Enable both SMP and APM (just APM support, no
ACPI nor any other apm option). And add to your lilo.conf file a line:

At boot you will see a log message like:

apm: BIOS version 1.2 Flags 0x03 (Driver version 1.14)
apm: disabled - APM is not SMP safe (power off active).

So kernel diables APM but lets the power-off feature active.

J.A. Magallon                                                      $> cd pub                                          $> more beer

Linux werewolf 2.4.1-ac4 #1 SMP Tue Feb 6 22:06:38 CET 2001 i686

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