Re: scsi regression that after months is still not addressed and now bothering 6.1.y users, too

[John Garry]

On 21/11/2023 09:50, Thorsten Leemhuis wrote:
> Quite a few machines with Adaptec controllers seems to hang for a few
> tens of seconds to a few minutes before things start to work normally
> again for a while:
> https://urldefense.com/v3/__https://bugzilla.kernel.org/show_bug.cgi?id=217599__;!!ACWV5N9M2RV99hQ!L26RD0hu99l3f709EFnXU_V7OaB1jG4Hi7BjKvxRuhDWKFmjrgfksLuXA6eBrBCRtOT8JcRRUvzRsHbyEm41r7tL_pbDfw$  
>
> That problem is apparently caused by 9dc704dcc09eae ("scsi: aacraid:
> Reply queue mapping to CPUs based on IRQ affinity") [v6.4-rc7]. That
> commit despite a warning of mine to Sasha recently made it into 6.1.53
> -- and that way apparently recently reached more users recently, as
> quite a few joined that ticket.

Is there a full kernel log for this hanging system?

I can only see snippets in the ticket.

And what does /sys/class/scsi_host/host*/nr_hw_queues show?

Thanks,
John