From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.9 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D5CEEC388F2 for ; Tue, 3 Nov 2020 09:35:54 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 4078622403 for ; Tue, 3 Nov 2020 09:35:54 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=suse.com header.i=@suse.com header.b="dgATLTXr" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4078622403 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=suse.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id A0A9E6B005C; Tue, 3 Nov 2020 04:35:53 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 9BBBE6B005D; Tue, 3 Nov 2020 04:35:53 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 8D1EF6B0068; Tue, 3 Nov 2020 04:35:53 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0016.hostedemail.com [216.40.44.16]) by kanga.kvack.org (Postfix) with ESMTP id 6293F6B005C for ; Tue, 3 Nov 2020 04:35:53 -0500 (EST) Received: from smtpin27.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id 0FE918249980 for ; Tue, 3 Nov 2020 09:35:53 +0000 (UTC) X-FDA: 77442600186.27.room18_56153ec272b7 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin27.hostedemail.com (Postfix) with ESMTP id EA0203D669 for ; Tue, 3 Nov 2020 09:35:52 +0000 (UTC) X-HE-Tag: room18_56153ec272b7 X-Filterd-Recvd-Size: 2812 Received: from mx2.suse.de (mx2.suse.de [195.135.220.15]) by imf22.hostedemail.com (Postfix) with ESMTP for ; Tue, 3 Nov 2020 09:35:52 +0000 (UTC) X-Virus-Scanned: by amavisd-new at test-mx.suse.de DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1604396151; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=mdnaE5WHd3WMJf4PF3zPdDjBC9dHqe3mPUim4j6Vrm0=; b=dgATLTXrJ6t+lyH1BezSLnhdbpE71kuY6OaF6sSDtnuZbtlolyL3Mone+q7QzA3KCAO58+ fpDoiKPK7PIlNOm/U6N38zQsClbCZwcyyr5Ixq0BWrr6bnnRp67pR3y3cdmMhg1yzDO4vp ItcEf3niV85TeUDz9BjKvrkGVQ7WZmo= Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id AAEB2AD04; Tue, 3 Nov 2020 09:35:51 +0000 (UTC) Date: Tue, 3 Nov 2020 10:35:50 +0100 From: Michal Hocko To: Suren Baghdasaryan Cc: linux-api@vger.kernel.org, linux-mm , Andrew Morton , David Rientjes , Matthew Wilcox , Johannes Weiner , Roman Gushchin , Rik van Riel , Minchan Kim , Christian Brauner , Oleg Nesterov , Tim Murray , kernel-team , LKML , Mel Gorman Subject: Re: [RFC]: userspace memory reaping Message-ID: <20201103093550.GE21990@dhcp22.suse.cz> References: <20201014120937.GC4440@dhcp22.suse.cz> <20201015092030.GB22589@dhcp22.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: 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: On Mon 02-11-20 12:29:24, Suren Baghdasaryan wrote: [...] > To follow up on this. Should I post an RFC implementing SIGKILL_SYNC > which in addition to sending a kill signal would also reap the > victim's mm in the context of the caller? Maybe having some code will > get the discussion moving forward? Yeah, having a code, even preliminary, might help here. This definitely needs a good to go from process management people as that proper is land full of surprises... -- Michal Hocko SUSE Labs