Re: "nvme nvmeX: IO queues not created" with "Amazon.com, Inc. NVMe SSD Controller" from 5.19.y (issue bisected)

["Sironi, Filippo" <sironi@amazon.de>]

On 20.09.22, 21:57, "Keith Busch" <kbusch@kernel.org> wrote:
> On Tue, Sep 20, 2022 at 11:41:58AM +0200, Thorsten Leemhuis wrote:
>  > Hi, this is your Linux kernel regression tracker.
>  >
>  > On 07.09.22 11:58, Sironi, Filippo wrote:
>  > > Adding more folks (Soumyaroop, Valentin, and Zorik) involved in the investigation, which is by now concluded.
>  >
>  > Has any progress been made to get this regression fixed? I might be
>  > missing something, but from here it looks like nothing happened since
>  > two weeks. Thing is: ideally it shouldn't take this long to fix
>  > regressions in production releases, as explained in
>  > https://docs.kernel.org/process/handling-regressions.html
>
>  This is a device bug, not a kernel one. The ideal fix will come from the
>  device's vendor to bring itself into protocol complaince.
>
>  We do work around these types of problems when necessary, but we usually want a
>  statement from the vendor that they can't/won't fix it before we create new
>  quirks to maintain. The vendor has said they are investigating this and will
>  update with their conclusions. As far as I know, the ball is still in their
>  court.

Soumyaroop replied a few minutes before your email.

This has been root caused to an NVMe controller firmware latent issue
that was uncovered with the recent changes in Linux 5.19. We identified
a fix for this issue and it is rolling out in our fleet as we speak. The
rollout will finish in the next few weeks.




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