Messages in this thread | | | Date | Tue, 3 Mar 2009 17:05:03 +0100 | From | Ingo Molnar <> | Subject | Re: [PATCH] generic debug pagealloc |
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* Akinobu Mita <akinobu.mita@gmail.com> wrote:
> CONFIG_DEBUG_PAGEALLOC is now supported by x86, powerpc, sparc > (64bit), and s390. This patch implements it for the rest of > the architectures by filling the pages with poison byte > patterns after free_pages() and verifying the poison patterns > before alloc_pages(). > > This generic one cannot detect invalid read accesses and it > can only detect invalid write accesses after a long delay. But > it is an feasible way for nommu architectures.
if every architecture supports it now then i guess this config switch can go away:
> +config ARCH_SUPPORTS_DEBUG_PAGEALLOC > + def_bool y
Ingo
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