Funny SCSI behavior

Robert Glamm (glamm@mountains.ee.umn.edu)
Thu, 28 Sep 1995 12:14:07 -0500 (CDT)


I've seen this consistenly; has anyone else seen this:

# insmod sd_mod
# insmod aha1542
# tail -5 /usr/adm/kernel
Sep 28 09:56:22 brazilian kernel: Configuring Adaptec (SCSI-ID 7) at IO:330...
Sep 28 09:56:22 brazilian kernel: scsi0 : Adaptec 1542
Sep 28 09:56:22 brazilian kernel: scsi : 1 host.
Sep 28 09:56:22 brazilian kernel: Unable to obtain scsi_result buffer
Sep 28 09:56:24 brazilian kernel: scsi : 0 hosts.

/* Well, what the hell.. I've got a Conner 1G drive hooked up to it on
SCSI ID 0. Try it again... */

# rmmod aha1542
# insmod aha1542
# tail -11 /usr/adm/kernel
Sep 28 09:56:26 brazilian kernel: Configuring Adaptec (SCSI-ID 7) at IO:330...
Sep 28 09:56:26 brazilian kernel: scsi2 : Adaptec 1542
Sep 28 09:56:26 brazilian kernel: scsi : 1 host.
Sep 28 09:56:26 brazilian kernel: Vendor: CONNER Model: CFP1080S ..
Sep 28 09:56:26 brazilian kernel: Type: Direct-Access ..
Sep 28 09:56:26 brazilian kernel: Detected scsi disk sda at scsi2, channel 0,..
Sep 28 09:56:30 brazilian kernel: SCSI Hardware sector size is 512 bytes on ..
Sep 28 09:56:30 brazilian kernel: SCSI Hardware sector size is 512 bytes on ..
Sep 28 09:56:30 brazilian kernel: sda:pe: Direct-Access
Sep 28 09:56:30 brazilian kernel: Detected scsi disk sda at scsi2, channel 0,..
Sep 28 09:56:30 brazilian kernel: ptions enabled

This is with a 1.3.28 kernel, an Adaptec 1542B, and a Conner 1080S SCSI-2.
It happens whether the drive is on SCSI ID 0 or SCSI ID 6, and this pattern
always has to be repeated whenever I want to access that drive.. but, it
always works, and there are never any errors reported. Does sd_mod just
take awhile to initalize? Or does it have to be hit once? Or am I inserting
the modules in the wrong order? Or, did I just miss a FAQ lying under
my nose? ;)

-- 
Bob Glamm                                | "You can't do a `goto' to a block
Email: glamm@mountains.ee.umn.edu        |  that has been optimized away.
URL:   http://www.cs.umn.edu/users/glamm |  Darn."
Home: (612)623-9437 Work: (612)625-7876  |    - from the perltrap(1) manpage