Date: Wed, 12 Apr 1995 17:21:36 -0700 (PDT) From: "Rodney W. Grimes" <rgrimes@gndrsh.aac.dev.com> To: nc@ain.charm.net (Network Coordinator) Cc: freebsd-hackers@FreeBSD.org Subject: Re: TUNE_1542 - still available? Message-ID: <199504130021.RAA08508@gndrsh.aac.dev.com> In-Reply-To: <Pine.BSF.3.91.950412195849.745A-100000@ain.charm.net> from "Network Coordinator" at Apr 12, 95 08:00:22 pm
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> > > I noticed in the LINT kernel config file there is an option for TUNE_1542 > which is supposed to let the bus speed be determined automatically for > Adaptec 1542 controllers. When I added options TUNE_1542 to my config > file and ran config, it had no clue what that option was. Does it still > exist/is it useful/does it work/oh my god the sky is purple/? I am > running true (red) adaptect 1542C controllers. I don't know about config complaining about this option, it shouldn't care about it. But instead of using this I highly recommend you set your 1542C DMA transfer speed in the BIOS and run the diagnostic to make sure it works okay (let it run for at least 10 passes). The TUNE_1542 thing can cause data loss and or corruption if it thinks it can run the controller faster than it really can (and this is why that was optioned off by default). -- Rod Grimes rgrimes@gndrsh.aac.dev.com Accurate Automation Company Custom computers for FreeBSD
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