ISDN cards and SMP

John Beardmore (wookie@wookie.demon.co.uk)
Mon, 22 Oct 2001 11:15:43 +0100


I've tried using a Sedlbauer speedcard ISDN controller under Alpha
RH6.2.

This works fine with a single processor kernel, but the module fails to
load with a kernel compiled for SMP.

I gather this is true for all the Isdn4Linux drivers, though as I have a
three processor machine, this is a real pain !

Advice seems to be to get an external TA of some kind, but that would
seem likely to add to ping times, and maybe to create a bottleneck if I
ever get 128k or compression to my ISP !

So, two questions:

1) are there any fixes for this problem in the pipeline

and if not,

2) how easy would it be for the kernel novice to adapt a uniprocessor
driver to survive in the SMP environment ?

Cheers, J/.

-- 
John Beardmore
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