Alan Cox wrote:
I've acquired a new CF card that is capable of UDMA2, and with the same
connectors, wiring and adaptor (i.e. I popped out the MWDMA card and
inserted the UDMA one), I can now boot and read data on both devices
without error at reasonable speeds.
Fascinating. Does point more to a driver funny you are right. At the
moment I'm at a loss to guess what
Why would it be a driver quirk just because it now works when it didn't
before?
There are plenty of completely WEIRD people out there who install SCSI
systems in a Y configuration with a controller in the middle and both
ends terminated (or one end not or one end with a real terminator and
the other using drive termination) which is totally out of spec and
so on but *works* just fine by some random chance of chipset, drives and
cable length..
Doesn't UDMA checksum transfers, where MWDMA doesn't - or some drive to
controller intervention which would silently retry where MWDMA would
just pop it's guts all over your system?
--
Matt Sealey <matt@xxxxxxxxxxxxxx>
Genesi, Manager, Developer Relations
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