Re: Fix random crashes in x86-64 swsusp

[Andrew Morton]

Pavel Machek <pavel@xxxxxxx> wrote:
>
> Maybe we should memset freed memory to zero so such bugs are
> prevented?

It would make sense to poison these pages, yes.  Zero would not be a good
choice of value, actually - something like 0xbb would cause nice oopses if
someone used a pointer which was backed by __init memory.

CONFIG_DEBUG_PAGEALLOC will pick up this sort of bug, but that's i386-only.
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