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b=pwKOMqKaMs5ZN59XzN2Tl5DiIMejocs/W0luvr63InSxlknAt0xys1j3BHAaRr9Vw l1C8Qr9SSEy0e+K4oqj7P5GYjfCr5FRzqr0rzHuz98tXX4aKyHWWmD4uhoaBwBK4Qb A6hoXEDnzDeixmzjk85z8T/5ypzpnetrJXG57ciw= Date: Thu, 30 Apr 2026 07:43:05 -0700 From: Andrew Morton To: Minchan Kim Cc: hca@linux.ibm.com, linux-s390@vger.kernel.org, david@kernel.org, mhocko@suse.com, brauner@kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, surenb@google.com, timmurray@google.com Subject: Re: [PATCH v2] mm: process_mrelease: introduce PROCESS_MRELEASE_REAP_KILL flag Message-Id: <20260430074305.9d3389ed71af040acfe222de@linux-foundation.org> In-Reply-To: <20260429211359.3829683-1-minchan@kernel.org> References: <20260429211359.3829683-1-minchan@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: 18F2C10001A X-Stat-Signature: 3uj3redt5q4jj76bd1k9h64utqos8yu7 X-Rspam-User: X-HE-Tag: 1777560187-864191 X-HE-Meta: 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 VLox6ylR pecCXIGwGPEph/PEbcDlwGRpRQmPSePKULRrJZcSa3seYThxHlKiMyPqB/o/OOOIiAucGGmDBpr74SZwKuxxh1+B2IkSu7aSGORtEIn/Mki1ZNLWgKKwmLTOh3nPYdY3sOKSsp1j/lkaoD2l7OdjpFgL8ftGIy4kjkEyL6dsboZ72MnBe+PZ1ZxhhCxmWPWTubUiW0v81L1FF8vvvHnQowrrlzgqcfqHyCFKy4Yb2l34gApygiOFpFpFPcR6AXBr0fCB6zhHFEuEZLaOwOssu6Hu60RuboeKccwKQqps4eKAtdkoQkoDgz3JbxJc3lp6q/5wH Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Wed, 29 Apr 2026 14:13:59 -0700 Minchan Kim wrote: > Currently, process_mrelease() requires userspace to send a SIGKILL signal > prior to invocation. This separation introduces a scheduling race window > where the victim task may receive the signal and enter the exit path > before the reaper can invoke process_mrelease(). Does process_mrelease() have a manpage? My googling was a fail.