I use woody is ok, but use Stable(Sarge) & Kernel 2.6.8-2-686-smp is often show "APIC error on CPU0:40(40).
Please help to solve it. My server config as:-
Intel PII x 2 Hard disk 13G x 1 , 160G x 2 Promise Ultra133 TX2 Controller card Ram 512MB
try boot with noapic or acpi=off.
ACPI problem?
try boot with noapic or acpi=off.