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Re: Regression in at least 5.10.y and mainline: Firewire audio interface fails to work properly (when booted under Xen)
- To: Salvatore Bonaccorso <carnil@xxxxxxxxxx>, 小太 <nospam@xxxxxxxx>, Jianxiong Gao <jxgao@xxxxxxxxxx>, Christoph Hellwig <hch@xxxxxx>, Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>, linux-kernel@xxxxxxxxxxxxxxx, iommu@xxxxxxxxxxxxxxxxxxxxxxxxxx, Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx
- From: Robin Murphy <robin.murphy@xxxxxxx>
- Date: Mon, 14 Jun 2021 14:29:08 +0100
- Cc: 989778-maintonly@xxxxxxxxxxxxxxx
- Delivery-date: Mon, 14 Jun 2021 13:29:18 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
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/
Robin.
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