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SubjectRe: [crash] Re: Latest brk patchset
Jeremy Fitzhardinge wrote:
>
> Well, its a bit more complex than that; we'd need to make it conditional
> on the user/kernel split, which seems all a bit fiddly. I guess it
> could be something like:
>
> MAPPING_BEYOND_END = PAGE_TABLE_SIZE((1<<(32-PAGE_SHIFT)) - (PAGE_OFFSET
> / PAGE_SIZE)) * PAGE_SIZE
>

Or simplified:

PAGE_TABLE_SIZE(((1 << 32)-PAGE_OFFSET) >> PAGE_SHIFT) << PAGE_SHIFT

-hpa



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