Re: [RESEND PATCH V2] mm: page_alloc: unreserve highatomic page blocks before oom

[Joakim Tjernlund]

On Mon, 2024-01-22 at 15:04 -0800, Greg KH wrote:
> A: http://en.wikipedia.org/wiki/Top_post
> Q: Were do I find info about this thing called top-posting?
> A: Because it messes up the order in which people normally read text.
> Q: Why is top-posting such a bad thing?
> A: Top-posting.
> Q: What is the most annoying thing in e-mail?
>
> A: No.
> Q: Should I include quotations after my reply?

haha, serves me right :) (note to self, do not use webmail for Linux stuff ...)
>
> http://daringfireball.net/2007/07/on_top
>
> On Mon, Jan 22, 2024 at 10:49:32PM +0000, Joakim Tjernlund wrote:
> > Seems like I pasted the wrong commit(sorry), should be: ac3f3b0a55518056bc80ed32a41931c99e1f7d81
> > I only see that one in master.
>
> And what kernels have you tested this on?  How far back should it go?

I am testing it now in latest 5.15.x but the jury is still out. No
OOM since a few days but the error does not happen often.

>
> For mm patches like this, that are not explicitly tagged by the
> maintainers to be included in the stable tree, we need their ack to be
> able to apply them based on their requests.  So can you get that for
> this change and provide tested patches, we will be glad to queue them
> up.

I asked the author and he acknowledged it could be backported. Charan, please chim in.

 Jocke

>
> thanks,
>
> greg k-h