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b=rpOu97tUQeUvQad0ivYCzxEXw0diHHGGMNcbZ7olMYb7XpTMa7eofFRVOKihJ1dCH C52zPxO8001IaxGWgIr5PdH1aSOm+q0SIUdjApUnpsI5UuOymDwSuEdpfNitfVxoGp C7Rwxp1Sx5hQINaQ1+aqWKAqRD92SWIGxcimmZHw= Date: Tue, 29 Jul 2025 23:30:56 -0700 From: Andrew Morton To: Hannes Reinecke Cc: Hannes Reinecke , David Hildenbrand , Oscar Salvador , linux-mm@kvack.org Subject: Re: [PATCHv4 0/3] mm/memory_hotplug: fixup crash during uevent handling Message-Id: <20250729233056.c45b9c2e21ee7838434024c6@linux-foundation.org> In-Reply-To: <907ee759-6051-4d47-bf09-cea362ac0cd9@suse.de> References: <20250729064637.51662-1-hare@kernel.org> <20250729133806.979475704b1162d7aea99b2b@linux-foundation.org> <907ee759-6051-4d47-bf09-cea362ac0cd9@suse.de> 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-Stat-Signature: q8tc8axw71wok6pkqeqbszdioesc3jem X-Rspamd-Queue-Id: 20C5EA0006 X-Rspamd-Server: rspam10 X-Rspam-User: X-HE-Tag: 1753857058-306899 X-HE-Meta: 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 Sh5ClP5/ 3ZHuodE6EPFpukI4GN4BDngWrjCFcsEby6IOlXk9jtwO8enn/HBm8nv/F+vwcQBJj2yTgYEcuuNyanQNHxs6WHaO7fXEv/2evpTu21qVG9hicpHC7lR+LSsEe3CDawd+F4AQttmK1qYnCyMwu8CLsnBLd8cN8ymLSoXfc5PRJK24xMXXE5ZiG+VmVrdl/zXJgLjunoyCSFO1esG8BdbstsG8K0+ufGrfMixeYeMJ2t50C31PTa4ZDmiQm4N3Fkv3uByhgVRwuAP39oR4WmsJniJsflAm8iYSZy370uspnApct1se4bi4Eg+GFeSSCo8n1CNZj 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 Wed, 30 Jul 2025 07:49:57 +0200 Hannes Reinecke wrote: > On 7/29/25 22:38, Andrew Morton wrote: > > On Tue, 29 Jul 2025 08:46:33 +0200 Hannes Reinecke wrote: > > be needed in earlier kernels? > > > > IOW, if we wish to fix this crash in earlier kernels, I really cant use > > this series as presented. For now I'll add it to mm-new to get it a bit > > of exposure while we decide what to do. > > > > > And here's me who thought we were doing upstream work precisely to > _not_ having to do backports :-) Yeah, well, maybe others aren't as keen on caring for -stable but I do think it's part of our role as kernel maintainers (as opposed to "developers"?). And as a large number of MM developers work at organizations which use and ship older kernel releases, I assume they're on board with that! > I see if we can roll patch 1&2 into one; guess I'll need to do it > anyway for our kernel. You too! Thanks.