Re: Problems with EDAC coexisting with BIOS

Tim Small
2006-04-22T18:31:42Z

Gross, Mark wrote:

>You can never predict when a SMI will bubble through the system. Even
>if you handle case where the BIOS re-hides Dev0:Fun1 and not panic how
>do you deal with the race between the BIOS SMI based handling and the
>driver? Who will end up reading (and clearing) the error registers
>first? There is no good way to share today.
>
>
You could (at least from memory, on certain chipsets) modify the error
reporting registers so that an SMI is no longer generated as a result of
MC ECC errors. True, this doesn't fix many of the other problems
related to this issue, but would be useful in a "modprobe xyz_edac
force_unhide_MC_PCI=1" case.

Closed-source BIOSes eh? Who needs em ;-p.

Tim.