Date: Sat, 29 Jan 2000 13:33:49 -0800 From: David Greenman <dg@root.com> To: Roger Marquis <marquis@roble.com> Cc: questions@FreeBSD.ORG Subject: Re: Adaptec 2940 B channel? Message-ID: <200001292133.NAA00750@implode.root.com> In-Reply-To: Your message of "Sat, 29 Jan 2000 12:19:42 PST." <Pine.GSO.3.96.1000129121139.4083B-100000@roble2.roble.com>
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>I've got a FreeBSD 3.4 system with a 2940U2W and SCSI 3 hard drive >attached to the A channel. This setup runs great until I attach a CDRW >drive (YAMAHA CRW4416S) to channel B. The 2nd device causes it to >hang just before the login prompt. The Adaptec BIOS sees the CDRW and >maps it to ID#4 but even with the trasfer rate set to 5MBPS the system >will hang: > > fdc0: FIFO enabled, 8 bytes threshold > fd0: 1.44MB 3.5in > wdreset: error1: 0x25 > wdreset: error1: 0x25 > wdc0 not found at 0x1f0 > lnc0 not found at 0x280 > vga0 at 0x3b0-0x3df maddr 0xa0000 msize 131072 on isa > npx0 on motherboard > npx0: INT 16 interface > (probe4:ahc0:0:4:0): SCB 0xa - timed out in command phase, SEQADDR == 0x15d > (probe4:ahc0:0:4:0): BDR message in message buffer > (probe4:ahc0:0:4:0): SCB 0xa - timed out in command phase, SEQADDR == 0x15d > (probe4:ahc0:0:4:0): no longer in timeout, status = 34b > ahc0: Issued Channel A Bus Reset. 11 SCBs aborted > >Has anyone come across this and, if so, is there a fix? The 2940U2W is a single channel controller, so there really isn't a "B" channel. I think what you must be refering to is the single-ended connector. Perhaps the termination isn't set properly on either the controller or the drive? -DG David Greenman Co-founder/Principal Architect, The FreeBSD Project - http://www.freebsd.org Creator of high-performance Internet servers - http://www.terasolutions.com Pave the road of life with opportunities. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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