Hi Mark, On Tue, Mar 03, 2015 at 02:36:19PM -0500, Mark Hounschell wrote: > It looks like this problem is NOT a bug with the SCSI aic7xxx driver > after all. I can duplicate this BUG very easily with other hardware. > Simply removing a driver module (whether it its self, has actually > used any of the DMA API or not) that is sitting on the same pci bus > as a card that is actually using DMA will cause this. And that card > that is in use and using DMA will no longer function. It "looks and > feels" like unloading a module causes the IOMMU to improperly unmap > valid mappings. You are right, I looked into the code and found the problem. I'll post a fix for testing this week. Joerg -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
