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

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Message-ID: <CAE2SPAZH9vQ=7mTxaCGY6DHdf5Yvv-0SWCwUobUY3tTD5caLow@mail.gmail.com>
Date:	Mon, 16 Jan 2012 12:27:21 +0100
From:	Bastien ROUCARIES <roucaries.bastien@...il.com>
To:	Matthew Garrett <mjg59@...f.ucam.org>
Cc:	"Rafael J. Wysocki" <rjw@...k.pl>,
	"H. Peter Anvin" <hpa@...or.com>, 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 Mon, Jan 16, 2012 at 1:41 AM, Matthew Garrett <mjg59@...f.ucam.org> wrote:
> On Mon, Jan 09, 2012 at 05:00:08PM +0100, bastien ROUCARIES wrote:
>> Le Wednesday 16 November 2011 00:19:51, Rafael J. Wysocki a écrit :
>> > From: Rafael J. Wysocki <rjw@...k.pl>
>> >
>> > Dell OptiPlex 990 is known to require PCI reboot, so add it to the reboot
>> > blacklist in pci_reboot_dmi_table[].
>>
>>
>> Sorry to hi jack this thread but it seems that dell made the same crap with my precision T1600. See
>> http://www.centos.org/modules/newbb/print.php?form=1&topic_id=32948&forum=55&order=ASC&start=0
>> or
>> https://bugzilla.redhat.com/show_bug.cgi?id=698239
>
> 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

I suppose you need DSDT ? Join here

>
> --
> Matthew Garrett | mjg59@...f.ucam.org

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