Hi Raimonds, On 01/11/2015 10:33 AM, Raimonds Cicans wrote: > Hello. > > I contacted you because I am hit by regression caused by your commit: > 453afdd "[media] cx23885: convert to vb2" > > > My system: > AMD Athlon(tm) II X2 240e Processor on Asus M5A97 LE R2.0 motherboard > TBS6981 card (Dual DVB-S/S2 PCIe receiver, cx23885 in kernel driver) > > After upgrade from kernel 3.13.10 (do not have commit) to 3.17.7 > (have commit) I started receiving following IOMMU related messages: > > 1) > AMD-Vi: Event logged [IO_PAGE_FAULT device=0a:00.0 domain=0x001d > address=0x000000000637c000 flags=0x0000] > > where device=0a:00.0 is TBS6981 card As far as I can tell this has nothing to do with the cx23885 driver but is a bug in the amd iommu/BIOS. See e.g.: https://bbs.archlinux.org/viewtopic.php?pid=1309055 I managed to reproduce the Intel equivalent if I enable CONFIG_IOMMU_SUPPORT. Most likely due to broken BIOS/ACPI/whatever information that's read by the kernel. I would recommend disabling this kernel option. Regards, Hans > > sometimes this message was followed by storm of following messages: > cx23885[0]: mpeg risc op code error > ... -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
