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Peter Anvin" , Andrew Morton , Dave Chinner , Qi Zheng , Roman Gushchin , Muchun Song , Juri Lelli , Vincent Guittot , Dietmar Eggemann , Steven Rostedt , Ben Segall , Mel Gorman , Valentin Schneider , K Prateek Nayak , Uladzislau Rezki , David Hildenbrand , Lorenzo Stoakes , "Liam R . Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Kees Cook , Sebastian Andrzej Siewior , Clark Williams , suleiman@google.com, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mm@kvack.org, linux-rt-devel@lists.linux.dev Subject: Re: [RFC 06/10] Reclaim memory from blocked kernel stacks Message-ID: <20260828115410.GL687043@noisy.programming.kicks-ass.net> References: <20260827232948.2520558-1-stevensd@google.com> <20260827232948.2520558-7-stevensd@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260827232948.2520558-7-stevensd@google.com> X-Rspamd-Server: rspam11 X-Rspam-User: X-Stat-Signature: 74c8tdhkpbu7j4ndhh9d4xa34x9onb6d X-Rspamd-Queue-Id: 3D67840004 X-HE-Tag: 1787918066-10099 X-HE-Meta: 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 Ah5R+yjj OS/hcekxaKWZc8/SG8WsJIVcsnVR8TfYFdqW2Pdk3TSG6URGUmuG62+jmgpLNMaRAEOjU1PRzIObOnzZO6lefzc03myiiNUxS/JFrr1klMXOKCoy7gKflijhnm2TNecKLJ+R4tZUNP8+vgvrd0grKTaK13HjKWSyNDW/WxK1lPBfC2U4BCwvF6/Nwzi52DzIyEd62vI2uW0bYoHlELFF/Ao1WyTO4ZHLLld2TeBLEOkHtF2c= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Thu, Aug 27, 2026 at 04:29:44PM -0700, David Stevens wrote: > A new TASK_STACK_RECLAIM state is introduced for tasks that are > blocked waiting for the stacks to be repopulated. Not yet read the full patch, but *why*.