Messages in this thread | | | Date | Wed, 08 Oct 2008 14:35:04 -0500 | From | Christoph Lameter <> | Subject | Re: [PATCH 1/1] hugetlbfs: handle pages higher order than MAX_ORDER |
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Andy Whitcroft wrote:
> With SPARSEMEM turned on and VMEMMAP turned off a valid combination, > we will end up scribbling all over memory which is pretty serious so for > that reason we should handle this case. There are cirtain combinations > of features which require SPARSMEM but preclude VMEMMAP which trigger this.
Which configurations are we talking about? 64 bit configs may generally be able to use VMEMMAP since they have lots of virtual address space.
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