Received: by 2002:ad5:474a:0:0:0:0:0 with SMTP id i10csp6885736imu; Mon, 3 Dec 2018 04:33:23 -0800 (PST) X-Google-Smtp-Source: AFSGD/W6XM2qqpqYV++wtxXYzEgrGuEjrsWtMX9Iw8BTAibrHXksYpzN95mWSnuVejgWSnxo4/HP X-Received: by 2002:a63:dc54:: with SMTP id f20mr13254898pgj.410.1543840403034; Mon, 03 Dec 2018 04:33:23 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1543840403; cv=none; d=google.com; s=arc-20160816; b=SViYFf8gp8cmwGmRdMiru29GDwgSBwz3jZFRq5tJj9WIUqw7S/MsK6cQjNyYMGsRrD yiRZwSz5O78RXYp1Ks/WkLt9KmkoP/iKzuutzaoIoQUwXxlJ745v1ZSV5gaUkyp6pmDy GwmXEhoXZ8ejaQKF5yTbySzleW7ohiiLsojxzqDmds92WiZqutaCg81QYhcH518zLIE2 c4QhIuxfQncIQFNEG8PKPB/KL3eYuNa/K+JHh1giwkerO6xJVNCdOlDu5iAinFwT3Nmz YYjUME54RQxkjNg6ao7zuq2utYDPTQJYoRtaBcVy9bGS0xYwu6bNSKCSk9Hx3C5Unt2T t4Xw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date; bh=lqlmoUjcqb3rGLVjmWmLDj12ILulgWTiNf14iPYx13k=; b=E26ykNYsXf+C02mXCcGXMFpAXDoufcg4ogEP4/q0AmrJsnHtkqdIKdf5gny/6Muabb of/kPFHCXeTwaLdczIPZNQx7KO2mzB2JFk1iEAE3kvc3QN0rcxDIeUmZeXLckGxGOd82 b27GBMPxqs5RzGv2HljJEVETfqwP4UnA5GiOC3lpVw0tkfxYt3N451/hwE0kd/rF5Z2Q 3LWFOjN30xdnDy3/GJy9a7uo8kdwEMrAoNtmaTdRLkzAlN/4gOUYrb2vYy3Eo+j6In5J jt66775Y/m4aUw2AmyvDctMwxKB8BKa1FXHL6ZJMn42qDBon+sYyB6UOCnf9l6K3fFE3 jtjw== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=redhat.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id f5si3669353plo.422.2018.12.03.04.32.57; Mon, 03 Dec 2018 04:33:23 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=redhat.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726470AbeLCMcp (ORCPT + 99 others); Mon, 3 Dec 2018 07:32:45 -0500 Received: from mx1.redhat.com ([209.132.183.28]:45972 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726163AbeLCMcp (ORCPT ); Mon, 3 Dec 2018 07:32:45 -0500 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 1D5D5C034E1F; Mon, 3 Dec 2018 12:31:53 +0000 (UTC) Received: from dhcp-27-174.brq.redhat.com (unknown [10.43.17.12]) by smtp.corp.redhat.com (Postfix) with SMTP id 82FDD272C0; Mon, 3 Dec 2018 12:31:50 +0000 (UTC) Received: by dhcp-27-174.brq.redhat.com (nbSMTP-1.00) for uid 1000 oleg@redhat.com; Mon, 3 Dec 2018 13:31:52 +0100 (CET) Date: Mon, 3 Dec 2018 13:31:49 +0100 From: Oleg Nesterov To: Michal Hocko Cc: Ingo Molnar , Linus Torvalds , Linux List Kernel Mailing , "Rafael J. Wysocki" , Chanho Min , Thomas Gleixner , Peter Zijlstra , Pavel Machek Subject: Re: [PATCH] Revert "exec: make de_thread() freezable (was: Re: Linux 4.20-rc4) Message-ID: <20181203123149.GB31795@redhat.com> References: <20181203074700.GA21240@gmail.com> <20181203083942.GF31738@dhcp22.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20181203083942.GF31738@dhcp22.suse.cz> User-Agent: Mutt/1.5.24 (2015-08-30) X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.31]); Mon, 03 Dec 2018 12:31:54 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 12/03, Michal Hocko wrote: > > Now, I wouldn't mind to revert this because the code is really old and > we haven't seen many bug reports about failing suspend yet. But what is > the actual plan to make this work properly? I don't see a simple solution... But we need to fix exec/de_thread anyway, then we can probably reconsider this patch. Oleg.