From: "Gregory Price (Meta)" <gourry@gourry.net>
To: "Gregory Price (Meta)" <gourry@gourry.net>
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org,
kernel-team@meta.com, muchun.song@linux.dev, osalvador@suse.de,
david@kernel.org, akpm@linux-foundation.org, ziy@nvidia.com,
joshua.hahnjy@gmail.com, rakie.kim@sk.com,
ying.huang@linux.alibaba.com, ljs@kernel.org,
liam@infradead.org, vbabka@kernel.org, rppt@kernel.org,
surenb@google.com, mhocko@suse.com, brendan.jackman@linux.dev,
hannes@cmpxchg.org, mgorman@techsingularity.net,
anshuman.khandual@arm.com
Subject: Re: [PATCH v4 0/8] mm: fix allocator races with memory hotplug
Date: Thu, 29 Oct 2026 14:52:50 -0400 [thread overview]
Message-ID: <179329997091.2127828.9582419476069377621.b4-reply@b4> (raw)
In-Reply-To: <20261028211930.3504634-1-gourry@gourry.net>
On 2026-10-28 17:19 -0400, Gregory Price (Meta) wrote:
> Memory hotplug rebuilds zonelists in place while allocations walk them,
> and offlining an emptied zone frees pagesets the vmstat worker can still
> hold. These eight fixes cover the walkers that crash, fail, or pick the
> wrong zone or node as a result.
>
Andrew/David - please don't pull this for now.
We're solving some cross-over between this series and Vlastimil's
set of fixes from anthropic:
https://lore.kernel.org/linux-mm/20261027-pgalloc-ai-hotfixes-v1-0-9c7d1aca801e@kernel.org/
Have discussed with Vlastimil, and i'm going to pull patches 4/9 and 5/9
from his series onto this series when i respin this for his updates.
That should keep the backport issues self-contained on this series.
--
~Gregory
prev parent reply other threads:[~2026-10-29 18:52 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-28 21:19 Gregory Price (Meta)
2026-10-28 21:19 ` [PATCH v4 1/8] mm/page_alloc: reset can_retry_reserves when the slowpath restarts Gregory Price (Meta)
2026-10-29 13:37 ` Vlastimil Babka (SUSE)
2026-10-29 16:31 ` Gregory Price (Meta)
2026-10-28 21:19 ` [PATCH v4 2/8] mm/page_alloc: detect zonelist rebuilds from memory hot-add Gregory Price (Meta)
2026-10-28 21:19 ` [PATCH v4 3/8] mm/page_alloc: snapshot the preferred zone against shrink rebuilds Gregory Price (Meta)
2026-10-29 15:21 ` Vlastimil Babka (SUSE)
2026-10-28 21:19 ` [PATCH v4 4/8] mm/mmzone: read each zoneref slot once when filtering by nodemask Gregory Price (Meta)
2026-10-29 15:51 ` Vlastimil Babka (SUSE)
2026-10-28 21:19 ` [PATCH v4 5/8] mm/page_alloc: retry allocations that raced with a zonelist rebuild Gregory Price (Meta)
2026-10-29 17:47 ` Vlastimil Babka (SUSE)
2026-10-28 21:19 ` [PATCH v4 6/8] mm/hugetlb: retry the pool walk when the zonelist is rebuilt Gregory Price (Meta)
2026-10-29 18:08 ` Vlastimil Babka (SUSE)
2026-10-30 1:37 ` Gregory Price (Meta)
2026-10-28 21:19 ` [PATCH v4 7/8] mm/page_alloc: retry alloc_contig_pages() " Gregory Price (Meta)
2026-10-29 18:10 ` Vlastimil Babka (SUSE)
2026-10-28 21:19 ` [PATCH v4 8/8] mm/mempolicy: read the zoneref slot once in mempolicy_slab_node() Gregory Price (Meta)
2026-10-29 18:16 ` Vlastimil Babka (SUSE)
2026-10-29 18:52 ` Gregory Price (Meta) [this message]
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