linux-kernel - Re: BUG: 1bbbbe7 (x86: Exclude E820_RESERVED regions...) PANIC on boot

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Message-ID: <CAE9FiQVZirvaBMFYRfXMmWEcHbKSicQEHz4VAwUv0xFCk51ZNw@mail.gmail.com>
Date:	Mon, 22 Oct 2012 16:35:18 -0700
From:	Yinghai Lu <yinghai@...nel.org>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	"H. Peter Anvin" <hpa@...ux.intel.com>,
	Jacob Shin <jacob.shin@....com>, Tom Rini <trini@...com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: BUG: 1bbbbe7 (x86: Exclude E820_RESERVED regions...) PANIC on boot

On Mon, Oct 22, 2012 at 2:27 PM, H. Peter Anvin <hpa@...or.com> wrote:
>>
>> We never know that bios guys will not let bios produce crazy e820 map.
>>
>
> Yeah, well, that just *will* happen... that's a given.
>
> We can trim those ranges, though.  Who cares if we lose some RAM.
>

please check attached two patches that handle partial pages for 3.7.

and you still need patch in
   https://lkml.org/lkml/2012/8/24/469

to address early page table size calculation problem for Tom Rini

Thanks

Yinghai

Download attachment "memblock_trim_memory.patch" of type "application/octet-stream" (2450 bytes)

Download attachment "use_for_each_mem_pfn_range_setup.patch" of type "application/octet-stream" (1325 bytes)