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Re: Bug#989778: Regression in at least 5.10.y and mainline: Firewire audio interface fails to work properly (when booted under Xen)

On Thu, 24 Jun 2021 at 04:50, Salvatore Bonaccorso <carnil@xxxxxxxxxx> wrote:
Hi Robin,

On Mon, Jun 14, 2021 at 02:29:08PM +0100, Robin Murphy wrote:
> 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@xxxxxxx/

Thanks for the pointer, it seems that now it has been fixed upstream
with 5f89468e2f06 ("swiotlb: manipulate orig_addr when tlb_addr has

I've checked out upstream v5.13 b7050b242430f3170e0b57f5f55136e44cb8dc66 (which includes the above commit) and confirmed that my issue is now resolved.
Now to wait for it to reach Debian :)



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