2940UW, Linux 2.1.106, failure

[W. Wade, Hampton]

Folks,

I have a Dell Workstation 400 with an Adaptec 2940 UW.
My software is RedHat 5.1 (5.0 upgrade).  With the Linux
kernel 2.0.34, this system works fine.  With kernel 2.1.106,
at boot time it finds the controller then reports a timeout,
then goes into an infinite loop with reset/timeout messages.
This is the boot disk and controller and is not being loaded
as module (not using initrd).  I had hoped to try the SMP
features of 2.1.x (I can grab another PII/300 for testing), but
am currently stuck.  Note the 2.0.34 kernel was also built
from the tarball, is not the RedHat shipped one, and is
also not using initrd, and it works.

scsi0:  Adaptec ... EISA/VLGB/PCI) 5.0.18/3.2.4
...
scsi aborting command due to timeout:  pid 1, scsi0, channel 0, id 0,
lun0 Inquiry 00 00 00 FF 00
...
SCSI bus is being reset for host 0 channel 0.
SCSI host 0 abort (pid1) timed out - resetting
[repeated until I reboot the system]

SCSI bus contains:
0    Segate ST19171W ID 0
5    NEC CD-ROm

Kernel built with gcc-2.7.2.3-11 [RH 5.1 stock RPM]

Any help would be appreciated....

Cheers,
--
W. Wade, Hampton

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