From: Kevin Perros <kevin.perros@free.fr>
To: John <linux.kernel@free.fr>
Cc: linux-kernel@vger.kernel.org
Subject: Re: 2.6.20.3-rt8 - DMA suffers excessive delay periodically
Date: Thu, 29 Mar 2007 20:45:32 +0200 [thread overview]
Message-ID: <460C094C.8070304@free.fr> (raw)
In-Reply-To: <460A297A.2030200@free.fr>
> No it is an "indutrial" motherboard.
> Although I don't know what makes it "industrial".
>
> Regards.
>
> Is this related to SMM?
>
> As far as I can tell, the BIOS is Phoenix AwardBIOS v6.00PG.
>
> Would someone know how to disable SMM in this BIOS?
Usually you cannot disable SMM via the BIOS. You have to write chipset
specific Kernel code for that.
By example, a module exist in RTAI's code base for Intel Chipset.
You can assess your system's latencies using the -rt kernel calibration
tools, located in Ingo Molnar's repository.
Here is an introduction to SMI :
http://www.securityfocus.com/columnists/402
next prev parent reply other threads:[~2007-03-29 18:46 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-03-27 16:32 2.6.20.3-rt8 - DMA suffers excessive delay periodically John
2007-03-27 20:41 ` Lee Revell
2007-03-28 8:38 ` John
2007-03-28 16:16 ` Lee Revell
2007-03-29 13:04 ` John
2007-03-29 18:45 ` Kevin Perros [this message]
2007-03-29 19:31 ` Lee Revell
2007-03-29 21:33 ` Alan Cox
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