Re: [patch 0/5] Support for sanitization flag in low-level page allocator

Pekka Enberg
2009-05-30T08:01:28Z

Larry H. wrote:
> Furthermore, selective clearing doesn't solve the roots of the problem.
> It's just adding bandages to a wound which never stops bleeding. I
> proposed an initial page flag because we could use it later for
> unconditional page clearing doing a one line change in a header file.
>
> I see a lot of speculation on what works and what doesn't, but
> there isn't much on the practical side of things, yet. I provided test
> results that proved some of the comments wrong, and I've referenced
> literature which shows the reasoning behind all this. What else can I do
> to make you understand you are missing the point here?

Hey, if you want to add a CONFIG_ZERO_ALL_MEMORY_PARANOIA thing that can
be disabled, go for it! But you have to find someone else to take the
merge the SLAB bits because, quite frankly, I am not convinced it's
worth it. And the hand waving you're doing here isn't really helping
your case, sorry.

Pekka