noapic for smp

Hi, I have a rhel4 (2.6.9-5.EL) system. The SMP kernel boot fails(rather locks up system). But when use "noapic" it boots fine. Is it that my system "APIC" is bad? Will "noapic" have performance impact (IRQ routing,etc)? My system is a Uni processor with HT enabled. with regards, Anil

noapic for smp

Hi, I have a rhel4 (2.6.9-5.EL) system. The SMP kernel boot fails(rather locks up system). But when use noapic it boots fine. Is it that my system APIC is bad? Will noapic have performance impact (IRQ routing,etc)? My system is a Uni processor with HT enabled. with regards, Anil