Bug#1061688: rtl8821: WARNING: CPU: 37 PID: 1366 at drivers/iommu/dma-iommu.c:1091 iommu_dma_unmap_page+0x7d/0x90

[Breno Leitao <leitao@debian.org>]

Hello Salvatore,

On Mon, Jan 29, 2024 at 07:04:38PM +0100, Salvatore Bonaccorso wrote:
> Can you check if this happens as well with 6.7.1-1~exp1 in
> experimental?

Sure. I wil install the experimental kernel and see if it reproduces.
I didn't find an easy way to reproduce it, but, I can install a kernel
and uses until it crashes (or not).

Let's see.
> 
> As I understand this is a regression from 6.6.11-1 to 6.6.13-1, any
> chance you could bisect the upstream versions between 6.6.11 and
> 6.6.13 to identify the culprit?

Right. I am always in upstream and I have never seen this before. Maybe
it is luck, or a proper regression.

Let me test experimental and see if this reproduces. I will keep this
bug updated.

Thank you!