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

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Message-ID: <4DF2A984.6060705@linux.intel.com>
Date:	Fri, 10 Jun 2011 16:32:20 -0700
From:	"H. Peter Anvin" <hpa@...ux.intel.com>
To:	Yinghai Lu <yinghai@...nel.org>
CC:	Matthew Garrett <mjg59@...f.ucam.org>,
	Maarten Lankhorst <m.b.lankhorst@...il.com>,
	Jim Bos <jim876@...all.nl>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Greg KH <gregkh@...e.de>
Subject: Re: 2.6.39.1 immediately reboots/resets on EFI system

On 06/10/2011 04:26 PM, Yinghai Lu wrote:
>>
>>> 2. ask vendor of system that Matthew try to fix to go back fix their firmware. otherwise user have stay with CSM with it.
>>
>> This isn't an option.
>>
>> The medium-term fix is to ensure that the bootloaders don't put the 
>> kernel on top of boot services code. 
> 
> that is not enough, will need to make arch/x86/boot/compressed/head_64.S parse e820 table to find right decompress position.
> 

No, it should be, because the boot loader can control the decompress
position to avoid the problems.

	-hpa
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