Hi Clemens,
On Sun, Apr 03, 2016 at 08:59:53AM +0200, Clemens Ladisch wrote:
> there are several reports of Xonar PCIe sound cards failing to work in
> kernel 4.4 (including 4.4.5):
>
> https://bugzilla.redhat.com/show_bug.cgi?id=1313790
> https://bugzilla.kernel.org/show_bug.cgi?id=111711
> https://bbs.archlinux.org/viewtopic.php?pid=1601338#p1601338
>
> They show error messages like this:
>
> AMD-Vi: Event logged [IO_PAGE_FAULT device=03:00.0 domain=0x0000
> address=0x000000000020cf00 flags=0x0070]
>
> All these cards use a PCI chip, with different PCIe bridges (ASM1083,
> PEX8112, PEX8111).a
>
> It probably matters that "03" is the PCI bus, but that device "00" does
> not exist.
I have seen that before, can you please boot with 'amd_iommu_dump' on
the kernel command line and send me dmesg after boot?
Thanks a lot,
Joerg
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