P4 problem with 2.4.3

P4 problem with 2.4.3

[Michael J Clark]

Hey guys,

Im trying to get the 2.4.3 Kernel on a Dell dimension 8100 (p4, 1.3ghz).  
The 2.2* kernels work fine but when I start up with the new kernel it 
dies at the line "cpu:0, clocks:0, slice:0".  It also says something about 
"wierd, boot kernel (CPU#0) not found in BIOS. "  There is also a message 
that said Host Bus speed is 0.00mhz.  It gets the processor speed right 
though.  I chose the P4 family in the kernel compilation. I also tried 
the P3 family.

Sorry for the lack of detailed info, didn't leave a log (that I could 
find).  Thanks

Mike

Re: P4 problem with 2.4.3

[Chmouel Boudjnah]

Michael J Clark <clarkmic@pobox.upenn.edu> writes:

> "wierd, boot kernel (CPU#0) not found in BIOS. "  There is also a message 

do you have SMP or APIC enabled ?

-- 
MandrakeSoft Inc                     http://www.chmouel.org
                      --Chmouel

Re: P4 problem with 2.4.3

[Michael J Clark]

I believe APIC is enabled, it does some kind of check for it.  Everything 
is pretty much default.  I read that the APIC can cause interrupt 
problems,  should I disable it?  If so, is that done in the kernel config?

Mike

> 
> Michael J Clark <clarkmic@pobox.upenn.edu> writes:
> 
> > "wierd, boot kernel (CPU#0) not found in BIOS. "  There is also a message 
> 
> do you have SMP or APIC enabled ?
> 
> -- 
> MandrakeSoft Inc                     http://www.chmouel.org
>                       --Chmouel
> -
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at  http://www.tux.org/lkml/
> 

Re: P4 problem with 2.4.3

[Chmouel Boudjnah]

Michael J Clark <clarkmic@pobox.upenn.edu> writes:

> I believe APIC is enabled, it does some kind of check for it.  Everything 
> is pretty much default.  I read that the APIC can cause interrupt 
> problems,  should I disable it?  If so, is that done in the kernel config?

yes APIC cause problems for me on a PIV, you should disable it in the config...

-- 
MandrakeSoft Inc                     http://www.chmouel.org
                      --Chmouel

Re: P4 problem with 2.4.3

[Alan Cox]

> dies at the line "cpu:0, clocks:0, slice:0".  It also says something about 
> "wierd, boot kernel (CPU#0) not found in BIOS. "  There is also a message 

This message is printed when the kernel finds it is running on a processor
not listed in the MP table. Basically your machine seems to have broken MP
tables. 

What is happening is something like this

	Kernel:		Find MP table
			Ok We have CPUs 1 and 2
			We have PCI
			We have etc...

	Kernel:		What CPU number are you
	CPU:		Im CPU 0
	Kernel:		but you dont exist..

		** boom **

Try booting with 'noapic' and also send a report to Ingo Molnar as he may want
to double check the table is wrong not the kernel code. 

2.2 doesn't use the APIC on non SMP boxes so won't notice the problem.