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2008 Jun 03
2
Interrupt storm with shared interrupt on digi(4)
...eBSD driver polls the board and doesn't have a functional interrupt handler (and Linux behaves in the same way). It seems that under some conditions, the board will assert its interrupt line and, since there's no interrupt handler to clear whatever triggered the interrupt, the IRQ is never unasserted. In the past, I have managed to avoid the problem by putting the Digi card on a dedicated interrupt. For reasons I don't understand, this appears to mask the problem. Unfortunately, I now have a system where, courtesy of Compaq's incompetence, I have no way to avoid having two Digi boa...