Subject: Re: NCR Driver Lossage in sys/dev/pci/ncr.c 1.55
To: Curt Sampson <firstname.lastname@example.org>
From: Jukka Partanen <email@example.com>
Date: 02/17/1997 02:24:23
Curt Sampson writes:
> Perry, Dave,
> This change from 1.54 to 1.55 broke something on my system. I've
> got an NCR 53c810 attached to an HP Surestore, a Quantum Lightening,
> and an IBM drive. The HP's always given me problems until recently,
> especially with tagged command queuing, but at least with 1.54
> below it seemed to work fine. 1.55 breaks it real bad; the system
> probes ok but when it tries to mount the root filesystem I get a
> whole lot of `command aborted' with data of all zeros.
> If you guys don't have any suggestions, I'm going to try to find this
> the hard way, which means the following:
Try setting NCR_SCSI_MAX_TAGS (or something like that) to 0.
Some HP SCSI drives (we have C3725S drives) don't handle
tagged commands properly. I have a patched ncr.c which has a
quirk entry for this drive and it works ok. Disabling tagged
commands altogether should also do the trick.
.. I don't know why but, suddenly, I want to discuss declining I.Q.
LEVELS with a blue ribbon SENATE SUB-COMMITTEE!