Re: new x86 setup code hangs on Dell Inspiron 5150

[H. Peter Anvin]

Will Simoneau wrote:
> While trying to put together a new kernel for my laptop (Dell I5150, as
> in subject) I found that recent kernels just don't boot. Right after
> grub loads the kernel, before the "Uncompressing Linux" message is
> shown, it hangs. The BIOS appears to still be alive (ctrl-alt-del works,
> keyboard lock LEDs respond). It seems to be caused by the new x86 setup
> code.
>
> My kernel is Linus' git as of a1c582d0720f2eff61043e90711767decf37b917.
> I bisected and confirmed that 4fd06960f120e02e9abc802a09f9511c400042a5
> triggers a non-functioning boot.
>
> This system has Dell BIOS rev A38 and a P4 3.2 w/HT.
>
> What should I do next to debug this problem?

Can you put in some printf's in the code and see how far it gets?

	-hpa
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