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SubjectRe: x86_64 segfault error codes
On Wed, 14 Dec 2005, Andi Kleen wrote:
>
> Don't know what kernel you're looking at, but 2.6.15rc5 has
>
> * bit 0 == 0 means no page found, 1 means protection fault
> * bit 1 == 0 means read, 1 means write
> * bit 2 == 0 means kernel, 1 means user-mode
> * bit 3 == 1 means use of reserved bit detected
> * bit 4 == 1 means fault was an instruction fetch

I can't see it there in 2.6.15-rc5 or 2.6.15-rc5-git; but it is there
in 2.6.15-rc5-mm3: which seems to contains a lot of x86_64 patches,
perhaps some of which you're expecting already to be in 2.6.15?

Hugh
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