Re: [PATCH, V2] i386: instead of poisoning .init zone, change protection bits to force a fault

Andrew Morton a écrit :

But I'm inclined to drop the whole patch - I don't see how it can detect
any bugs which CONFIG_DEBUG_PAGEALLOC won't find.

If CONFIG_DEBUG_PAGEALLOC is selected, does a page freed by free_page(addr);guaranted not being reused later ?

Anyway, the CONFIG_DEBUG_INITDATA was a temporary patch in order to track theaccesses to non possible cpus percpu data. So if you feel all such accesseswere cleaned, we can drop the patch...


Eric
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References:
- [PATCH] i386: Add a temporary to make put_user more type safe.
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- Re: [PATCH] i386: Add a temporary to make put_user more type safe.
  - From: [email protected] (Eric W. Biederman)
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- [PATCH] i386: instead of poisoning .init zone, change protection bits to force a fault
  - From: Eric Dumazet <[email protected]>
- Re: [PATCH] i386: instead of poisoning .init zone, change protection bits to force a fault
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- [PATCH, V2] i386: instead of poisoning .init zone, change protection bits to force a fault
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