Re: [PATCH v6 00/17] iommu/arm-smmu-v3: Quarantine device upon ATC invalidation timeout

[Will Deacon]

On Wed, 23 Sep 2026 13:11:19 -0700, Nicolin Chen wrote:
> This series addresses a critical vulnerability and stability issue where an
> unresponsive PCIe device failing to process ATC (Address Translation Cache)
> invalidation requests leads to silent data corruption and continuous SMMU
> CMDQ error spam.
> 
> [ As Jason pointed out, because this series fundamentally introduces a new
>   RAS feature to quarantine and recover from hardware faults and relies on
>   a recently accepted SMMU driver rework, it is not treated as a standard
>   bug fix. Thus, most of the patches here don't carry a "Fixes" tag. ]
> 
> [...]

Applied SMMU rbtree fix to iommu (arm/smmu/updates), thanks!

[06/17] iommu/arm-smmu-v3: Don't rb_erase() a never-inserted stream node
        https://git.kernel.org/iommu/c/2888520bdcbe

Cheers,
-- 
Will

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