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 384E1C388F7 for ; Tue, 3 Nov 2020 09:35:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D66D622404 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" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727873AbgKCJfy (ORCPT ); Tue, 3 Nov 2020 04:35:54 -0500 Received: from mx2.suse.de ([195.135.220.15]:45756 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727512AbgKCJfx (ORCPT ); Tue, 3 Nov 2020 04:35:53 -0500 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: Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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