Re: [Xen-devel] Re: Allow compile with CONFIG_DEBUG_INFO=y, X86_PAEnot set on gcc 3.4.5

[Jeremy Fitzhardinge]

Adrian Bunk wrote:
> CONFIG_DEBUG_INFO=y is why I never hit it before.
>
> It does not seem to be just one dodgy Redhat compiler (as I assumed in 
> the Bugzilla entry) but the whole 3.4 series of gcc which makes our 
> resolution of saying that this specific compiler is broken invalid.
>
> Considering that we officially support all compilers >= 3.2 this is just 
> one more case where we have to add to the kernel a workaround for a 
> broken compiler.
>   

Yes.  I'm happy to write off a specific rpm package, but a whole series 
is a different matter.

Adding

	if (PREALLOCATED_PMDS == 0)
		return;

in the appropriate places with a small comment seems like the right answer.

   J
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