NAK: [PATCH 0/1] [F linux-aws-5.11] c4.large boot regression in upstream stable patchset 2022-01-19

[Krzysztof Kozlowski]

On 05/02/2022 19:00, Tim Gardner wrote:
> SRU Justification
> 
> [Impact]
> 
> Upstream stable patchset 2022-01-19 as applied to linux-aws-5.11 5.11.0-1029.32_20.04.1 causes a boot regression.
> 
> [Fix]
> 
> A bisect narrowed down the offending commit. Reverting on top of Ubuntu-aws-5.11-5.11.0-1029.32_20.04.1
> solves the issue.
> 
> Revert commit caefebc4b66f841612504c9bb3b37ce6a326d994 ("PCI/MSI: Mask MSI-X vectors only on success")
> 
> [Test Case]
> 
> Install a kernel in a Focal/aws c4.large instance. Check for boot success.
> 
> [Where things could go wrong]
> 
> Other instance types could fail without this patch, though it is unlikely since
> they worked before this stable update.

Initial report from Andrea went unanswered:
https://lore.kernel.org/all/4264ac63-6072-5a43-2f5e-79d899cf0882@denx.de/#t

but we should not revert-it and leave it like this.

First, the revert should be UBUNTU SAUCE.

Second, how do we follow up on this? Do we keep the revert even though
upstream doesn't revert?


Best regards,
Krzysztof