System: i386 current as of a few weeks ago, with an NCR scsi controller.

I keep getting error messages to the effect that the SCSI bus is being
reset due to a timeout, and I'm having enormous amounts of trouble
running multiple devices simultaneously.

I remember a while back a bunch of patches were made to the NCR driver
to fix such problems, but I don't recall if they were ever integrated
into the source tree. Anyone know anything about this stuff?

Perry