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More info on AHA-2940 hangup

daemon@ATHENA.MIT.EDU (Archie Cobbs)
Thu Jul 13 21:11:19 1995

From: Archie Cobbs <archie@bubba.tribe.com>
To: linux-scsi@vger.rutgers.edu
Date: Thu, 13 Jul 1995 10:42:19 -0700 (PDT)


I'm having problems getting Linux 1.3.8 + AHA-2940 driver to get past
the "Resetting the SCSI bus..." point. I wrote a message before but
thought I should supply more information.

* The system runs perfectly under FreeBSD 2.0.5 (it's on the SCSI disk)

* ASUS PVI486-AP4 motherboard, one SCSI disk and one CD-ROM drive

* AHA SCSI BIOS is set to default values. Also tried it with
  the DOS large disk fake-out thing disabled.

Should I try an earlier kernel version? BIOS fiddling?
Any suggestions appreciated.

Thanks,
-Archie

Previous message:
>
> Trying to boot Linux 1.3.8 with an AHA-2940 PCI SCSI card I get a lock-up
> after the last line below (this was typed in by hand, pardon any typos):
> 
>     aic7xxx: hcntrl = 0x2
>     aic7xxx_detect: AIC-7870 Rev B
>     aic7xxx_detect: devconfig 0x0, devstatus 0x5
>     aic7870 hcntrl = 0x5
>     aic78xx: Reading SEEPROM... done
>     aic7870: extended translation enabled
>     AIC7870 (PCI-bus):
>         irq 11
>         bus release time 40 bclks
>         data fifo threshold 100%
>         SCSI CHANNEL A:
>             scsi id 7
>             scsi selection timeout 356 ms
>             scsi bus reset at power-on enabled
>             scsi bus parity enabled
>             scsi bus termination (low byte) enabled
>     aic7xxx: Dowloading sequencer code... done.
>     NeedSdtr = 0xff, 0xff
>     NeedWdtr = 0x0, 0x0
>     Resetting the SCSI bus...
> 
> When I boot without the driver installed, I can cat /proc/pci
> and see this:
> 
>   0 Device  10 Function  0.
>       SCSI bus controller : Adaptec 2940 (rev 0). 8259's interrupt 11.


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