Re: [PATCH v4 1/2] iommu/arm-smmu-v3: Fix CMDQ timeout warning

[Jacob Pan]

Hi Will,

On Tue, 25 Nov 2025 17:19:16 +0000
Will Deacon <will@xxxxxxxxxx> wrote:

> I'm assuming you're seeing problems with an emulated command queue?
> Any chance you could make that bigger?
Yes, it was initially observed on HyperV emulated CMDQ with small queue
size, which was chosen for latency reasons.

But as I explained in the other thread, the queue space polling timeout
detection problem is not directly related to queue size. It is a
code logic bug IMHO.

Sorry I forgot to directly answer these.