linux-kernel - Re: 2.6.39.1 immediately reboots/resets on EFI system

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Message-ID: <4DEFEA3A.5050604@linux.intel.com>
Date:	Wed, 08 Jun 2011 14:31:38 -0700
From:	"H. Peter Anvin" <hpa@...ux.intel.com>
To:	Matthew Garrett <mjg59@...f.ucam.org>
CC:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Yinghai Lu <yinghai@...nel.org>, Jim Bos <jim876@...all.nl>,
	Ingo Molnar <mingo@...e.hu>,
	Thomas Gleixner <tglx@...utronix.de>,
	Maarten Lankhorst <m.b.lankhorst@...il.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Greg KH <gregkh@...e.de>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: 2.6.39.1 immediately reboots/resets on EFI system

On 06/08/2011 02:28 PM, Matthew Garrett wrote:
> 
> E820 limits us to 128 ranges, and systems I'm looking at right now are 
> already using over 140 boot services regions. Some of them are 
> contiguous and we could just merge them for e820, but that leaves us at 
> the whim of whoever wrote the allocator for the firmware. And do you 
> want to bet on them having done this sanely?
> 

No, we're not limited to 128.  We're limited to 128 in the boot
structure, but more can be passed via the linked list.

	-hpa
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