Date: Tue, 11 Nov 1997 12:30:28 -0800 From: "David E. Tweten" <tweten@ns.frihet.com> To: Guido van Rooij <guido@gvr.org> Cc: freebsd-mobile@FreeBSD.ORG, FreeBSD-hackers@FreeBSD.ORG (FreeBSD-hackers) Subject: Re: multi sector io on IBM-DMCA-21440 Message-ID: <199711112030.MAA07279@ns.frihet.com>
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guido@gvr.org said: >IS anyone using multi-sector IO successfully on his laptop? I am, on an NEC 6030X (at home), and on an NEC 6050MX (at work). >When I would enable multi-sector io, the filesystem is severely >corrupted (without the driver giving any errors at all.) I configured >it with flas 0x80ff80ff. I've had no such problem. My equivalent boot messages are: wdc0 at 0x1f0-0x1f7 irq 14 on isa wdc0: unit 0 (wd0): <IBM-DMCA-21440>, 32-bit, multi-block-16 wd0: 1378MB (2822400 sectors), 2800 cyls, 16 heads, 63 S/T, 512 B/S And my appropriate kernel config lines are: controller wdc0 at isa0 port "IO_WD1" bio irq 14 vector wdintr disk wd0 at wdc0 drive 0 flags 0x80ff disk wd1 at wdc0 drive 1 flags 0x80ff device wcd0 It seems the only difference in our setups is that I put the flags on the device declaration while you put them on the controller declaration (and, of course, our laptops are made by different manufacturors). I have no idea why mine works and yours doesn't, but at least this is more data for you. -- David E. Tweten | 2047-bit PGP fingerprint: | tweten@frihet.com 12141 Atrium Drive | E9 59 E7 5C 6B 88 B8 90 | tweten@and.com Saratoga, CA 95070-3162 | 65 30 2A A4 A0 BC 49 AE | (408) 446-4131 Those who make good products sell products; those who don't, sell solutions.
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