On Tuesday 16 January 2007 19:01, Chris Wedgwood wrote: > On Tue, Jan 16, 2007 at 08:26:05AM -0600, Robert Hancock wrote: > > >If one use iommu=soft the sata_nv will continue to use the new code > > >for the ADMA, right? > > > > Right, that shouldn't affect it. > > right now i'm thinking if we can't figure out which cpu/bios > combinations are safe we might almost be better off doing iommu=soft > for *all* k8 stuff except for those that are whitelisted; though this > seems extremely drastic > > it's not clear if this only affect nvidia based chipsets, the nature > of the corruption makes me think it's not an iommu software bug (we > see a few bytes not entire pages corrupted, it's not even clear if > it's entire cachelines trashed) --- perhaps other vendors have more > recent bios errata or maybe it's just that nvidia has sold a lot of > these so they are more visible? (i'm assuming at this point it might > be some kind of cpu errata that some bioses deal with because some > mainboards don't ever seem to see this whilst others do)
FYI it seems that I was also hit by this bug with qlogic fc card + adaptec taro raid controller on Thunder K8SRE S2891 mainboard with nvidia chipset on it. http://groups.google.com/group/fa.linux.kernel/browse_thread/thread/b8bdbde9721f7d35/45701994c95fe2cf?lnk=st&q=arkadiusz+fibre&rnum=8#45701994c95fe2cf -- Arkadiusz Miśkiewicz PLD/Linux Team arekm / maven.pl http://ftp.pld-linux.org/ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
