IO-APIC missing interrupts

[Pierre Ossman]

I'm having some problems with the IO-APIC on a Acer Aspire 1501LMI 
laptop (AMD64). When the IO-APIC is enabled it misses some interrupts. 
Using noapic makes everything work fine.

The problem appears during fifo transfers when interrupts are frequent. 
My guess is that if a new interrupt is signaled while still in the 
interrupt handler, the new interrupt gets ignored.

The device in question is a LPC/ISA device.

Are there perhaps some special commands that need to be executed by the 
driver when on an APIC system?

Rgds
Pierre
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/