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Message-ID: <460C094C.8070304@free.fr> Date: Thu, 29 Mar 2007 20:45:32 +0200 From: Kevin Perros <kevin.perros@...e.fr> To: John <linux.kernel@...e.fr> CC: linux-kernel@...r.kernel.org Subject: Re: 2.6.20.3-rt8 - DMA suffers excessive delay periodically > 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 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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