On Tue, Jul 21, 2015 at 06:20:23PM +0200, Andreas Hartmann wrote: > [ 48.193901] <6>[fglrx] Firegl kernel thread PID: 1840 > [ 48.193985] <6>[fglrx] Firegl kernel thread PID: 1841 > [ 48.194063] <6>[fglrx] Firegl kernel thread PID: 1842 > [ 48.194172] <6>[fglrx] IRQ 28 Enabled > [ 48.261580] <6>[fglrx] Reserved FB block: Shared offset:0, size:1000000 > [ 48.261586] <6>[fglrx] Reserved FB block: Unshared offset:f7b4000, size:4000 > [ 48.261587] <6>[fglrx] Reserved FB block: Unshared offset:f7b8000, size:548000 > [ 48.261588] <6>[fglrx] Reserved FB block: Unshared offset:3fff3000, size:d000 >From a first glance it doesn't look like an IOMMU driver issue, because the addresses where the faults happen are not from the AMD IOMMU driver. And you have proprietary closed-source drivers loaded, can you reproduce the issue without fglrx? Joerg -- 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
