linux-kernel - Re: [PATCH 1/1] MM: virtual address debug

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Date:	Wed, 18 Jun 2008 14:12:21 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Jiri Slaby <jirislaby@...il.com>
Cc:	Ingo Molnar <mingo@...hat.com>, tglx@...utronix.de, hpa@...or.com,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	Andi Kleen <andi@...stfloor.org>,
	the arch/x86 maintainers <x86@...nel.org>
Subject: Re: [PATCH 1/1] MM: virtual address debug


* Jiri Slaby <jirislaby@...il.com> wrote:

> Add some (configurable) expensive sanity checking to catch wrong address
> translations on x86.
> 
> - create linux/mmdebug.h file to be able include this file in
>   asm headers to not get unsolvable loops in header files
> - __phys_addr on x86_32 became a function in ioremap.c since
>   PAGE_OFFSET, is_vmalloc_addr and VMALLOC_* non-constasts are undefined
>   if declared in page_32.h
> - add __phys_addr_const for initializing doublefault_tss.__cr3

applied, thanks Jiri. I have created a new tip/x86/mm-debug topic for 
this because the patch touches mm/vmalloc.c and other MM bits.

Andrew, is that fine for you, can we push it into linux-next via 
auto-x86-next if it passes testing?

	Ingo
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