Re: [PATCH 1/2] x86-32: Fix crashes with CPU hotplug on AMDmachines

[Joerg Roedel]

On Thu, Aug 05, 2010 at 07:14:14AM -0700, H. Peter Anvin wrote:
> On 08/05/2010 12:45 AM, Roedel, Joerg wrote:
> Correct, again.  It's unclear to me if we can get away with the very
> simple 64-bit approach -- in particular, not including all the 1:1
> mappings in the kernel -- for all future users, though.

Yeah, We could probably use the same symbol names for the trampoline and
the swapper page-table on 32 and 64 bit and merge the code that handles
it between the architectures. Shouldn't be too difficult. We cook
something up :-)
But do you mind to take this patch first? It fixes the occurence of an
erratum on AMD hardware, it is a quite simple fix compared to the rework
suggested. In fact, I would like to have a simple patch to fix the
problem first (and backport it as necessary) and then go the way to
rework the current code differences between 32 and 64 bit.

	Joerg

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