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

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Date:	Sun, 28 Oct 2012 13:48:08 -0700
From:	Tom Rini <trini@...com>
To:	Jacob Shin <jacob.shin@....com>
CC:	<hpa@...or.com>, Yinghai Lu <yinghai@...nel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"H. Peter Anvin" <hpa@...ux.intel.com>,
	"stable@...nel.org" <stable@...nel.org>
Subject: Re: BUG: 1bbbbe7 (x86: Exclude E820_RESERVED regions...) PANIC on
 boot

On 10/22/12 07:40, Jacob Shin wrote:
> On Sun, Oct 21, 2012 at 02:23:58PM -0700, Tom Rini wrote:
>> On 10/21/12 14:06, Jacob Shin wrote:
>>> Ah, sorry, this one should apply on top of 3.7-rc2:
>>>
>>> https://lkml.org/lkml/2012/8/24/469
>>>
>>> Could you try that? Just that single patch, not the whole patchset.
>>
>> That fixes it, replied with a note and Tested-by, thanks!
> 
> Thanks for testing!
> 
> hpa, so sorry, but it looks like we need one more patch [PATCH 2/5] x86:
> find_early_table_space based on memory ranges that are being mapped:
> 
>   https://lkml.org/lkml/2012/8/24/469
> 
> on top of this, because find_early_table_space calculation does not come out
> correctly for this particular E820 table that Tom has:
> 
>   http://pastebin.com/4eSPEAvB
> 
> The reason why we hit this now, and never hit it before is because before the
> start was hard coded to 1UL<<32.

As a final follow-up, v3.7-rc3 does not have the problem I reported
previously.

-- 
Tom

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