Alan Cox <alan@xxxxxxxxxxxxxxxxxxx> writes: >> This protects against the case where a piece of hardware is continuing >> to DMA even after the driver shutdown method has been called? I'm not > > It doesn't. We also have hardware which craps itself if you clear the bus > mastering bit and we have platforms where the BIOS gets most upset if you > do that on suspend paths. There are also lots of devices that simply > ignore the bus mastering bit ! But it also makes my system do kexec successfully for the first time. Maybe can make it an option. n-Andi -- ak@xxxxxxxxxxxxxxx -- Speaking for myself only -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
