Am 21.07.2015 um 18:35 schrieb Joerg Roedel: > 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?
The problem is, that the errors can't be seen always - only sometimes. I could see them before w/ or w/o fglrx. There have been situations where the machine didn't boot at all because of ata errors. But I never had any problem w/ Linux 3.18.x or less. Most probably you're right and it is not an IOMMU driver issue but maybe a problem w/ the ahci driver. I have to keep track of it. Thanks for your estimation. Regards, Andreas _______________________________________________ iommu mailing list [email protected] https://lists.linuxfoundation.org/mailman/listinfo/iommu
