Re: [2.1.98 - CVS] PCI Quirks addition..

Martin Mares (
Sat, 2 May 1998 23:03:55 +0200


> I donnot think that enabling burst is dangerous, but the 2 other
> so called _optimizations_ could be risky IMO.
> The BIOS seems not to enable Posted Write in the both directions of
> the PCI host bridge. The reasons could be that the bridge might
> not behave correctly with regards to PCI ordering rules for bridge.
> If it is the case, this quirks management has broken your system.
> BTW, some old Intel chipsets are known to be broken for posted
> write.
> > Which is exactly what I used to do manually with the old ctchip program.
> > I really like the layout of pci-quirks. It made this addition really trivial.
> In my opinion, the pci-quirks just worked in the opposite direction and
> may have broken things instead of having fixed them.

This is true for the whole bridge optimization thing and this is exactly
why we mark it as an experimental feature and don't recommend turning it on.

Have a nice fortnight

Martin `MJ' Mares   <>
Faculty of Math and Physics, Charles University, Prague, Czech Rep., Earth
"Immanuel doesn't pun, he Kant."

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