*BSD News Article 48741


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From: Matt Rosenberg <mar7@cec.wustl.edu>
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Multiple Adaptec 2742W's
Date: 17 Aug 1995 08:24:49 GMT
Organization: Washington University in St. Louis, MO USA
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To: questions@freebsd.org

Apparently 2.0.5 is not compatable with more than 1 Adaptec 
2742W.  I can add the second device line in the kernel 
configuration, and it will probe the bus for the second adaptor 
correctly (it probes both correctly).  However, the kernel will 
continue to probe the remaining devices and at the end of the 
probing phase, right before the swap is turned on and the file 
systems mounted, the system locks up.  I've tried different 
IRQ's for the two adaptors.  I've also tried the same IRQ with 
the conflicts keyword added in the second device line.  Same 
results - the adaptor and its bus are probed correctly but the 
system locks up before the file systems are mounted.  Each 
adaptor has exactly one Seagate 43401N (Elite 3) drive.  The 
first drive is assigned sd0 according to the messages and the 
second drive sd1, just as would be expected.

BTW, although the Seagate 43401N _is_ a wide SCSI device if the 
2742W is configured to "initiate wide negotiation" for the 
43401N, FreeBSD 2.0.5 will not probe the device correctly.  It 
doesn't make a difference to DOS whether that flag is turned 
on.
=============================================
Matt Rosenberg
Washington University School of Law
St. Louis, MO, USA

mar7@cec.wustl.edu ; rosenbem@wulaw.wustl.edu
http://www.cec.wustl.edu/~mar7/
=============================================