IO-APIC missing interrupts
From: Pierre Ossman
Date: Sun Oct 17 2004 - 07:28:25 EST
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/