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Howlett" , Vlastimil Babka , Jann Horn , Pedro Falcato , Rik van Riel , Harry Yoo , Laurence Oberman , Prakash Sangappa , Nadav Amit Subject: Re: [PATCH RESEND v3 0/4] mm/hugetlb: fixes for PMD table sharing (incl. using mmu_gather) Message-Id: <20260115100501.2b956d74aabfe142d37aa608@linux-foundation.org> In-Reply-To: References: <20251223214037.580860-1-david@kernel.org> X-Mailer: Sylpheed 3.8.0beta1 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Rspamd-Server: rspam03 X-Rspamd-Queue-Id: 4B72F14000C X-Stat-Signature: n5rx7tx78dsn443hmzwxp58hr6kmrari X-Rspam-User: X-HE-Tag: 1768500304-986123 X-HE-Meta: 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 0LD57Lpk 9bLpamhZ0KoIm9TZpb4DiLd21bBw4Q39hevyoriXh8dp7c/F5FgXaZb6RVKEzuL5FMr4r6kmGIT+3qFLVx9Bb93lGp6xo6ZD0cT6zlDm66YLY9zP79Il84hxigJixMDUG5NUheRK4D94inmoO27KIV/1yE0c1lHUZNyeyQV60SCPZPfZbvClYzEOnnV7bTGvM83T2THUXBOk+po+z9n5H5vmFJnz+Xo9KgCCEWPqEmiIMamhAouGgvu5jKnXKV23e38k1naSq8vKVjaRB2Is3+F3rYhIfSVOYS8mqPcZeBnBRtu/rcOXNYxh5ilGcNv019VkBI2TGzB6ofoyD86+M/WwvJrJDJsF4HJNpGPWB4MFuHye4vQnkwlJvHEwQVCre2Utlmy941rUQFf8= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Thu, 15 Jan 2026 17:22:30 +0000 Lorenzo Stoakes wrote: > Any update on this series? It's a hotfix series and I don't see it queued > up anywhere in either mm-hotfixes-unstable or mm-hotfixes-stable, this > issue is causing ongoing problems for a lot of people, is there any reason > it's being delayed? > > It's received extensive approval and testing, so should be GTG right? This has been in mm-unstable for a long time. As the series had a mixture of cc:stable and not-cc:stable patches, I figured we'd merge them all into next merge window and let the -stable maintainers figure it all out. As this is more urgent than I believed, we need to figure out what to do. a) Pluck out the two cc:stable patches, merge just those into 6.19-rc. b) Merge all of them into 6.19-rc, let -stable maintainers figure it out c) Stick with my original plan. The cc:stable "mm/hugetlb: fix excessive IPI broadcasts when unsharing PMD tables using mmu_gather" has dependencies on the preceding two non-cc:stable patches. So I'm thinking I add cc:stable to everything and send the whole series into 6.19-rcX. wdyt? Also, David, where do we stand with : I'd love to get some generic hugetlb testing on arm64 and powerpc, : that do hugetlb TLB flushing stuff a bit more special. : : I'll try doing some arm64 testing early in the new year myself. ?