Adaptec 2940UW Woes... part II

Corey Brenner (
Mon, 8 Apr 1996 17:46:55 -0500 (CDT)

I'm back off spring break now and back at work slamming my head into
a brick wall trying to figure out my problems with Adaptec's 2940UW
PCI controller.

My specs:

AHA2940UW rev. B, BIOS rev. 1.21, chipset AIC-7881U rev. 0
Adapter ID: 7, channel 0
Linux 1.3.84, aic7xxx driver version 2.24

The problems I'm encountering:

After any attempt to access the DEC DSP5300 disk at id 0,
the system will hang solid with the IDE driver giving messages
about interrupt requests { DriveReady SeekComplete }. After
lockup, the IDE hard disk LED is on constantly, so it seems
that there is some interference between the SCSI bus and the
IDE driver... The system is apparently not processing interrupts,
either, because CTRL-ALT-SCRLK doesn't give me a register

The solution:

I don't know, but I'm gonna give FreeBSD a whirl on this machine
to see if the support is any better. If so, I may look into
merging the code bases of the two drivers to try to fix the problem.

        Corey D. Brenner -- (,
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