Re: PROBLEM: io_uring hang causing uninterruptible sleep state on 6.6.59

[Keith Busch <kbusch@kernel.org>]

On Sun, Nov 03, 2024 at 04:53:27PM -0700, Jens Axboe wrote:
> On 11/3/24 4:47 PM, Andrew Marshall wrote:
> > I identified f4ce3b5d26ce149e77e6b8e8f2058aa80e5b034e as the likely
> > problematic commit simply by browsing git log. As indicated above;
> > reverting that atop 6.6.59 results in success. Since it is passing on
> > 6.11.6, I suspect there is some missing backport to 6.6.x, or some
> > other semantic merge conflict. Unfortunately I do not have a compact,
> > minimal reproducer, but can provide my large one (it is testing a
> > larger build process in a VM) if needed?there are some additional
> > details in the above-linked downstream bug report, though. I hope that
> > having identified the problematic commit is enough for someone with
> > more context to go off of. Happy to provide more information if
> > needed.
> 
> Don't worry about not having a reproducer, having the backport commit
> pin pointed will do just fine. I'll take a look at this.

I think stable is missing:

  6b231248e97fc3 ("io_uring: consolidate overflow flushing")