Messages in this thread | | | Date | Thu, 29 Mar 2007 15:04:24 +0200 | From | John <> | Subject | Re: 2.6.20.3-rt8 - DMA suffers excessive delay periodically |
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Lee Revell wrote:
> John wrote: > >> Would someone know how to disable SMM in this BIOS? > > There's no generic way.
I understand. Would someone know how to disable SMM in the VIA Pro133T chipset (VT82C596B south bridge). What I/O ports do I need to write to, and what values should I write to these ports?
> Try disabling USB keyboard emulation and any unused peripherals.
I have disabled everything I could find in the BIOS. Serial and parallel ports, USB, integrated sound, APM, ACPI, booting from exotic hardware or from the network. To no avail :-(
> Also google "RTAI disable SMM".
I see that they have a Linux kernel module to disable SMM in Intel chipsets. But I didn't see the equivalent for VIA chipsets.
>>> Is this a laptop? They are plagued with SMM problems... >> >> No it is an "indutrial" motherboard. >> Although I don't know what makes it "industrial". > > One would really hope that such a device would be designed for machine > control and similar RT apps and thus free of SMM...
Indeed...
I wonder if VIA thinks their old chipsets were industrial-grade.
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