Problem with IBM X Series 220

Problem with IBM X Series 220

[Nerijus Baliunas]

Hello,

Both RH 2.4.18-5 and 2.4.19 SMP kernels cannot boot - Adaptec
AHA-3960D (aic7xxx) cannot detect disks. It just tries and tries -
I think it does not get interrupts.

Regards,
Nerijus

Re: Problem with IBM X Series 220

[Lisa & Eric Malkowski]

This sounds awefully similar to a problem I had w/ an IBM 360 series w/
Pentium IV processors (although on a 2.2 kernel).  Devices we're not
getting their interrupts and hence never get past SCSI disk detection.

Try booting the kernel with the "noapic" option so all interrupts are on
the first processor (the way a UP kernel would run).

You'll still have all processors for running processes.

Not the most efficient setup, but a good workaround until the APIC related
interrupt problems are fixed.

Since the system won't boot for you to run dmesg, boot with
'console=ttyS0,57600' option (assuming kernel has serial port console
support built in) and capture all the boot messages by connecting a
terminal to first serial port on the system at 57600 8n1.  Then send the
captured output to this list so folks can examine the APIC detection and
setup results.

-Eric Malkowski

Nerijus Baliunas wrote:

> Hello,
>
> Both RH 2.4.18-5 and 2.4.19 SMP kernels cannot boot - Adaptec
> AHA-3960D (aic7xxx) cannot detect disks. It just tries and tries -
> I think it does not get interrupts.
>
> Regards,
> Nerijus
>
> -
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