Date: Mon, 06 Dec 1999 13:26:38 -0800 From: Ed Hall <edhall@screech.weirdnoise.com> To: Matthew Dillon <dillon@apollo.backplane.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: <199912062126.NAA30946@screech.weirdnoise.com> In-Reply-To: Your message of "Mon, 06 Dec 1999 12:40:59 PST." <199912062040.MAA72445@apollo.backplane.com>
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: you wrote: : : I wrote: : :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? It was Peter Wemm. I may be misunderstanding just what he did--trying the 4.0 driver was just one several experiments he proposed and performed. And saying that it "worked" is provisional; two days of testing strongly suggests that it reduced the problem with 3.3 to acceptible levels for my application. Is it truly a "fix?" I don't know. -Ed To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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