Date: Mon, 6 Dec 1999 12:40:59 -0800 (PST) From: Matthew Dillon <dillon@apollo.backplane.com> To: Ed Hall <edhall@screech.weirdnoise.com> Cc: "Jonathan M. Bresler" <jmb@hub.freebsd.org>, kris@hub.freebsd.org, freebsd-hackers@FreeBSD.ORG Subject: Re: PCI DMA lockups in 3.2 (3.3 maybe?) Message-ID: <199912062040.MAA72445@apollo.backplane.com> References: <199912062022.MAA30052@screech.weirdnoise.com>
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:I've confirmed that neither problem exists in 4.0. There are ample
:work-arounds, both hardware and software, including just not using 3.3.
:No fixes, though, just work-arounds... Workarounds for the NCR/FXP
:issue included:
:
:1) Using 2.2.8 (4.0 isn't a production option).
:2) Using a different NIC (a Tulip worked fine).
:3) Using a different SCSI adapter (Adaptec, as Matt suggested, works fine).
:4) Using a different SCSI driver (Peter managed to get a driver from 4.0
: hooked up under 3.3, and it survived two days of torture that would
: have toasted things within an hour using the stock driver; you'll have
: to ask him for details).
Ed, this is great stuff!
Are you sure about #4? Is that the same ncr.c driver or something
else? There are only a few differences between the 3.x and 4.x
/usr/src/sys/pci/ncr.c drivers. Which Peter, Peter Wemm?
-Matt
Matthew Dillon
<dillon@backplane.com>
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