IO-APIC and Adaptec

Jochen Buehler (jochen@amiga.chemie.uni-konstanz.de)
Wed, 4 Feb 1998 09:09:30 +0100


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Mick Haigh writes:
> There seems to be a problem with all of the IO-APIC enabled problems and
> Adaptec 2940 controllers. All of the peole who have reported problems
> have either had a 2940 controller, or have a MB with a built in 2940
> controller.
>
> I wonder is this more a problem with the driver (I notice a file called
> spinlocks.txt in the Documentation directory referring to making the
> aix7xxx driver more SMP friendly) than a problem with the
> kernels/motherboards.

As reported earlier on linux-kernel, I noticed that my 2940 would
crash the system (2.1.84, Tyan Tomcat dual P5) if not using Ingo
Molnars IO_APIC patches. With those patches applied everything runs
smoothly (there are three disks, dat, cdrom and a MO drive
hooked up to the 2940, so it's not quite idle).

Regards

Jochen

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Jochen Buehler EMail: jochen@amiga.chemie.uni-konstanz.de
AG Prof. Dr. Daltrozzo buehler@chemie.uni-konstanz.de
Fakultaet fuer Chemie Phone: +49-7531-882094
Universitaet Konstanz Fax: +49-7531-883043
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