On Tue, Sep 20, 2005 at 12:44:46PM -0700, Chris Wedgwood wrote:
> On Tue, Sep 20, 2005 at 10:30:48AM -0700, Linus Torvalds wrote:
>
> > This is quite possibly the result of an Opteron errata (tlb flush
> > filtering is broken on SMP) that we worked around as of 2.6.14-rc4.
>
> It would be really interesting to know if this does help. I was told
> em64t also have the 'bad pmd' problem but I can't make it happen here
> on opteron on em64t.
In the dozens of reports of bad pmd that Fedora users filed, there
wasn't a single EM64T user. In fact, most of the hits were from
very similar product lines, from a handful of vendors (Tyan's seemed
especially susceptable). It may be that other vendors updated their
BIOS's to include this workaround already, and Tyan and a few others
lagged behind.
Dave
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