[Pkg-xen-devel] Bug#989778: Regression in at least 5.10.y and mainline: Firewire audio interface fails to work properly (when booted under Xen)

[Robin Murphy]

On 2021-06-13 07:29, Salvatore Bonaccorso wrote:
> A user in Debian reported the above issue, which was reproducible with
> 5.13-rc5 and 5.10.y as packaged in Debian and found that 85a5a6875ca9
> ("swiotlb: don't modify orig_addr in swiotlb_tbl_sync_single") that
> introduced the issue.

Sounds like it's probably the same thing as being discussed over here:

https://lore.kernel.org/linux-iommu/2e899de2-4b69-c4b6-33a6-09fb8949d2fd@nxp.com/

Robin.