Re: [PATCH v2] mm/memory-failure: Support disabling soft offline for HugeTLB pages

[Kyle Meyer <kyle.meyer@hpe.com>]

On Thu, Aug 20, 2026 at 11:47:11AM +0800, Shuai Xue wrote:
> Hi Kyle,

Hi.
 
> Following up on this thread. The v2 patch once landed in akpm's mm
> tree (9ae6eefa4b6b "mm/memory-failure: support disabling soft
> offline for HugeTLB pages"), but that commit is now not reachable
> from any branch, and mainline as of v7.3-rc1 still only has the 0/1
> switch in /proc/sys/vm/enable_soft_offline.

Thanks for pointing this out.

Looks like this patch was added on 2025-09-16 [1] and dropped on 2025-11-11 [2].

[1] https://lore.kernel.org/all/20250916032512.AE588C4CEEB@smtp.kernel.org
[2] https://lore.kernel.org/all/20251111231818.52A60C16AAE@smtp.kernel.org

I must have missed the second email.

I don't remember discussing a v3. Can someone please remind me what we planned
to change or whether there was another reason it was dropped?

> The underlying issue discussed here is still unresolved for us:
> firmware reporting per-rank corrected error thresholds via GHES
> triggers soft offline of huge pages, which neither addresses the
> failing rank nor is acceptable for workloads that rely on stable
> hugetlb physical layouts.
> 
> Do you still plan to send a v3, e.g. with the disable-bitmask
> layout Anshuman suggested upthread?

I wasn't planning on sending a v3 but I'm happy to revisit if needed.
 
Thanks,
Kyle Meyer