Re: [PATCH 0/7] arm64: hibernate: dust off the suspend/cleanup rework

[Bradley Morgan <brads@mainlining.org>]

On 9 September 2026 10:05:16 BST, Mark Rutland <mark.rutland@arm.com>
wrote:
>Hi Will,
>
>On Thu, Sep 03, 2026 at 11:53:59AM +0100, Will Deacon wrote:
>> it's worth noting that Bradley's patch _does_ fix one of the
>> hibernation problems and has been tested by Vladimir:
>> 
>> https://lore.kernel.org/all/20260809213615.11646-1-include@grrlz.net/
>> 
>> I would prefer to take your complete set of patches, but if you don't
>> want that then should I just take the above for now? Prior to this
>> series, there has been no activity for nearly two years on your branch,
>> so I'd prefer to get _something_ in, even if it only fixes some of the
>> problems.
>
>Sorry for the delay.
>
>I'd prefer if you picked up Bradley's single patch for now. I'll follow
>up with a respin of the rest of the cleanup and fixes shortly.

Oh, so I didn't need to do all that? Urgh..

>
>Could you add a note to the commit message as to how Vladimir was able
>to trigger a hang with CONFIG_PAGE_POISONING=y and page_poison=on? It's
>helpful for anyone testing a backport, etc.
>
>With that:
>
>Acked-by: Mark Rutland <mark.rutland@arm.com>
>
>For context, when I originally wrote my patches, I hadn't managed to
>trigger failures at top level without additional hacks, and so this
>hadn't been a high priority. Given that Vladimir can trigger this
>specific issue with existing options, it makes sense to pick that up.
>
>I had a vague recollection that this specific fix lead to a secondary
>issue, but digging through my notes I can't see what that would have
>been, and I suspect I had just gotten confused w.r.t. what KVM was
>doing. If I find there was a real secondary issue I'll follow up with a
>fix .
>
>Thanks,
>Mark.

--- Thanks!
https://lore.kernel.org/all/EE579805-42F2-4C58-B752-F28779EEB717@grrlz.net/