linux-kernel - Re: [PATCH] x86 / reboot: Blacklist Dell OptiPlex 990 known to require PCI reboot

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Message-ID: <4F1478B0.6080200@zytor.com>
Date:	Mon, 16 Jan 2012 11:21:20 -0800
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Bastien ROUCARIES <roucaries.bastien@...il.com>
CC:	Matthew Garrett <mjg59@...f.ucam.org>,
	"Rafael J. Wysocki" <rjw@...k.pl>, Ingo Molnar <mingo@...e.hu>,
	Thomas Gleixner <tglx@...utronix.de>,
	LKML <linux-kernel@...r.kernel.org>, x86@...nel.org
Subject: Re: [PATCH] x86 / reboot: Blacklist Dell OptiPlex 990 known to require
 PCI reboot

On 01/16/2012 03:27 AM, Bastien ROUCARIES wrote:
>>
>> Does it work if you disable VT-d in the firmware? If so, then adding it
>> to the reboot method blacklist is the wrong fix - we need to figure out
>> why VT-d interferes with Dell's reboot code.
> 
> Yes it work
> 

This is particularly so since we are very close to having a full Dell
model catalogue in the kernel...

	-hpa

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