> port freeze during an interrupt while DMA is active causes a bus error > to be thrown when the ata_check_status call fires. I cannot reproduce > this on x86. I assume it handles the taskfile read error differently. I hit this problem with the HPT343 (which locks the bus if you do this). For other devices where you get a PCI abort it is usually the case that x86 platforms ignore them while on many other platforms they produce exceptions. In general I think we need to be sure all the core code paths stop DMA before poking in the taskfile (other than the basic IRQ check which we can't avoid) Alan -- 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
