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DateSun, 26 Feb 2006 23:30:36 +1100
FromNick Piggin <>
SubjectRe: New reliability technique
Pekka Enberg wrote:
> On 2/26/06, Victor Porton <porton@ex-code.com> wrote:
> 
>>Isn't it better to double check (especially after such risky things as
>>e.g. software suspend)?
>>
>>We need to check not only for damaged hardware, but also for
>>kernel/modules bugs. For this ECC and cache reliability is useless.
> 
> 
> What kernel bugs do you want to catch with double-checking free
> memory? For use-after-free, we already have slab poisoning.
> 

And for !slab, we unmap kernel virtual addresses with page debugging,
which seems like a better solution.

-- 
SUSE Labs, Novell Inc.
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