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SubjectRe: APIC problem or 3com 3c590 driver problem in smp kernel 2.4.x
On Wed, 30 May 2001, Feng Xian wrote:

> when I run the kernel smp-2.4.x, my PCI
> device can not receive any interrupt while the /proc/interrupts shows that
> 3c905 receives over million of interrupts and number grows very fast.

That's a bit strange as one of the first things done in 3c59x ISR is:

if ((status & IntLatch) == 0)
goto handler_exit; /* No interrupt: shared IRQs can cause this */

with which the driver detects if the interrupt was generated by the card.
Are you sure the driver for the other PCI device knows to play nice with
shared interrupts ?

Sincerely,

Bogdan Costescu

IWR - Interdisziplinaeres Zentrum fuer Wissenschaftliches Rechnen
Universitaet Heidelberg, INF 368, D-69120 Heidelberg, GERMANY
Telephone: +49 6221 54 8869, Telefax: +49 6221 54 8868
E-mail: Bogdan.Costescu@IWR.Uni-Heidelberg.De

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