Re: 2.4.4 Kernel - ASUS CUV4X-DLS Question

[Alan Cox]

> I just wanted to throw in my two cents and say that there appear to be 
> widespread issues with the APIC code in 2.4.x.  I'm tempted to stick my 
> neck out and say that it might be best to disable SMP IOAPIC by default 
> until APIC can be massaged, at least for a wider variety of hardware.

I would disagree

There are five cases I am seeing

1.	Serverworks total APIC hose ups.
	Fix: remove OSB4 or use -ac tree

2.	440BX and similar boards losing interrupts on some drivers
	Fix: use -ac

3.	APIC errors notably checksum errors. 
	Fix: buy properly manufactured hardware

4.	Hangs on boot with the CUV4XD and a couple of other boards.
	Still a mystery

5.	Incorrect PCI IRQ routing
	Fix: Mostly get a board with a correct BIOS. There are a couple of 
	cases people are looking at - some are fixed in 2.4.4 and -ac
	where magic IRQ lines are not visible directly in PCI space