Re: [git pull] core, x86: make LIST_POISON less deadly

[Andi Kleen]

Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> writes:
>
> Why not pick something that is *guaranteed* to fault? The above looks like 
> any future setup that supports 41 bits of addressing and has extended the 
> page tables (yes, it will happen eventually) will find that to be a 
> perfectly valid address?

When that happens then it will be either unmapped (and fault anyways)
or the kernel has to be changed to 5 level page tables first and then 
surely the poison value could change too.

-Andi
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