Tejun Heo wrote: > Hmmm... Once properly initialized, ahci is highly unlikely to cause > runaway IRQs which results in nobody cared. It has proper IRQ mask and > pending bits allowing the driver to reliably detect when and why the > controller is raising interrupt and disable it if necessary. Can you > try without the NVIDIA module? I'm beginning to think it was a one-time hardware error of some sort. I've been running 2.6.21-rc7-mm2 for awhile now and the problem hasn't reoccurred, so I think you can consider the matter settled... Thanks, Berck - To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html