I'm running the exact same kernel on two different DEC 3000/300s.  I get
the same boot up/probe messages (essentially) except I notice on one
system "tcds0: fast mode set for chip 0" is reported, but not on the
other.  Should this be happening?

The essential differences between the two machines is that one is a
150 MHz 3000/300, and the other a 125 MHz 3000/300LX:

>>>>>
NetBSD 1.5_ALPHA2 (CHUMBY) #1: Wed Oct 18 12:53:59 EDT 2000
    paul@chumby:/home/netbsd/src/sys/arch/alpha/compile/CHUMBY
DEC 3000 - M300, 150MHz
[...]
tcds0 at tc0 slot 4 offset 0x0: TurboChannel Dual SCSI (baseboard)
tcds0: fast mode set for chip 0
asc0 at tcds0 chip 0: NCR53C94, 25MHz, SCSI ID 7
<<<<<

and

>>>>>
NetBSD 1.5_ALPHA2 (CHUMBY) #1: Wed Oct 18 12:53:59 EDT 2000
    paul@chumby:/home/netbsd/src/sys/arch/alpha/compile/CHUMBY
DEC 3000 - M300LX, 125MHz
[...]
tcds0 at tc0 slot 4 offset 0x0: TurboChannel Dual SCSI (baseboard)
asc0 at tcds0 chip 0: NCR53C94, 25MHz, SCSI ID 7
<<<<<

Is it appropriate for "fast mode" to be enabled on the 3000/300 and not
on the 3000/300LX?

(Is it coincidence that the 3000/300 system I'm using is acting flaky
[especially under heavy disk load] and the 3000/300LX is not?)

Cheers,

Paul.

e-mail: paul@gromit.dlib.vt.edu

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