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

From: Joakim Tjernlund
Date: Mon Jan 22 2024 - 17:49:46 EST


Seems like I pasted the wrong commit(sorry), should be: ac3f3b0a55518056bc80ed32a41931c99e1f7d81
I only see that one in master.

________________________________________
From: Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx>
Sent: 22 January 2024 18:41
To: Joakim Tjernlund
Cc: quic_charante@xxxxxxxxxxx; david@xxxxxxxxxx; mhocko@xxxxxxxx; akpm@xxxxxxxxxxxxxxxxxxxx; linux-mm@xxxxxxxxx; hannes@xxxxxxxxxxx; mgorman@xxxxxxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx; quic_pkondeti@xxxxxxxxxxx; vbabka@xxxxxxx; stable@xxxxxxxxxxxxxxx; quic_cgoldswo@xxxxxxxxxxx
Subject: Re: [RESEND PATCH V2] mm: page_alloc: unreserve highatomic page blocks before oom

On Thu, Jan 18, 2024 at 05:23:58PM +0000, Joakim Tjernlund wrote:
> Could this patch be backported to stable? I have seen similar OOMs with
> reserved_highatomic:4096KB
>
> Upstream commit: 04c8716f7b0075def05dc05646e2408f318167d2

Backported to exactly where? This commit is in the 4.20 kernel and
newer, please tell me you aren't relying on the 4.19.y kernel anymore...

thanks,

greg k-h