On Thu, 2003-06-05 at 03:39, Alan Cox wrote:
> > Your BIOS did not set the PCI cache line size correctly. The kernel
> > caught that mistake, and fixed it.
> I can't find anywhere the BIOS is obliged to set it for you if a PnP OS
> is installed, ditto in the presence of any form of hotplug the test is
> As far as I can see you can only warn if MWI is already set in the
> control word, and (I'd have to check the spec) possibly if the
> cache line size is non zero.
I don't know how PnP OS plays into it, but the last time I dug into this
deep dark area, the BIOS was expected to setup the cache line size for
all PCI devices in the system.
I do specifically remember situations, involving Acenic cards, where
one Acenic card would have things setup correctly but for whatever
reason the BIOS decided not to init the other Acenic cards.
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This archive was generated by hypermail 2b29 : Sat Jun 07 2003 - 22:00:26 EST