Re: [PATCH v5] iommu/amd: Enhance "Completion-wait Time-out" error message

[Jörg Rödel]

On Thu, Nov 13, 2025 at 02:43:50AM +0530, Dheeraj Kumar Srivastava wrote:
> Current IOMMU driver prints "Completion-wait Time-out" error message with
> insufficient information to further debug the issue.
> 
> Enhancing the error message as following:
> 1. Log IOMMU PCI device ID in the error message.
> 2. With "amd_iommu_dump=1" kernel command line option, dump entire
>    command buffer entries including Head and Tail offset.
> 
> Dump the entire command buffer only on the first 'Completion-wait Time-out'
> to avoid dmesg spam.
> 
> Signed-off-by: Dheeraj Kumar Srivastava <dheerajkumar.srivastava@xxxxxxx>
> Reviewed-by: Ankit Soni <Ankit.Soni@xxxxxxx>

Applied, thanks.