Received: by 2002:a05:6a10:2726:0:0:0:0 with SMTP id ib38csp5665890pxb; Mon, 28 Mar 2022 15:44:02 -0700 (PDT) X-Google-Smtp-Source: ABdhPJzcR5vpYuDql7pUVbnz9P3NOw3qbf3Q3QqGKpo98At7SWwpov0tLg956IkntdZ42wHidWDs X-Received: by 2002:a17:902:8ec8:b0:154:5ecb:eb05 with SMTP id x8-20020a1709028ec800b001545ecbeb05mr27813490plo.56.1648507441854; Mon, 28 Mar 2022 15:44:01 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1648507441; cv=none; d=google.com; s=arc-20160816; b=EGlTGTiQCmYJ9nU3Fu5pFePynX+9iPB4yeXAjQrz7CQ8JcdsDR3ubdu0pK11PbFNT2 1ljpqzaIn9ezlBqyL+UHpM1vsRq5mql9nCrYNkgbk3rL096PEJD7OPvx9FAQHxsyKftx 2lFOCqvjtpBZfEdQeDKzz2ZObca5ZVrkRPr9/2rxHo9IOzZRBvIa/cIXwXb4XOK3Zrqt wktVpeUMW6BwMqv8kyPa6Bi6+lXlExLWdArvrAh9USaL8Ek8TchG2PWqT1Uo2nM7VWzV 6c37v9q92p6eQ1v1N3X4/rW3VS2F/R5MOdGEgk0eFos4nyQIC4CPAjSKywigYHLJto4H S14g== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:in-reply-to:content-disposition:mime-version :references:message-id:subject:cc:to:from:dkim-signature :dkim-signature:date; bh=s8R1rFpKPGiX8tjGMLwDE5ZH7Zajq5rA2088Om6hAHo=; b=FZ6BMJKvsnH4WUU5woYXcQfmSy6BflfX9AQZtwYrV14L0iVDMn4He7t8RaJR5XTDZU hAQg0pD1TRGGaYp08Yvp7MHwmHAjp8gS0lIOZoOM9qXX0xrETTW8qS9fOKt3cf/OFqmI yKMYpMFrK83oDHo0psA14f3cVI4r/FrCWzBTho5bgrtGcQTQUn6GAdKwxelgbCj+B+V1 uWqho7uCzqFtD8GYmTQdbcqmSBWdlqa47VnE7ftmqXPtKKmfTm6Dy2VGpy73XbAFmfni aeL/3TTzyDEPxenp/fthjqGSR3celqNOI4tySmos4S8xwrZ6p9lqJYrBGbk9p00fjvBi oIAg== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@linutronix.de header.s=2020 header.b=eXTKy1Us; dkim=neutral (no key) header.i=@linutronix.de header.s=2020e header.b=Ly+2vTan; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=linutronix.de Return-Path: Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net. [2620:137:e000::1:18]) by mx.google.com with ESMTPS id 21-20020a621715000000b004fa3a8e000fsi14315132pfx.198.2022.03.28.15.44.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 28 Mar 2022 15:44:01 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:18 as permitted sender) client-ip=2620:137:e000::1:18; Authentication-Results: mx.google.com; dkim=pass header.i=@linutronix.de header.s=2020 header.b=eXTKy1Us; dkim=neutral (no key) header.i=@linutronix.de header.s=2020e header.b=Ly+2vTan; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=linutronix.de Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 73DF7231937; Mon, 28 Mar 2022 14:51:47 -0700 (PDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242249AbiC1Qec (ORCPT + 99 others); Mon, 28 Mar 2022 12:34:32 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39596 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S242235AbiC1Qea (ORCPT ); Mon, 28 Mar 2022 12:34:30 -0400 Received: from galois.linutronix.de (Galois.linutronix.de [IPv6:2a0a:51c0:0:12e:550::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9BB0D62A17 for ; Mon, 28 Mar 2022 09:32:49 -0700 (PDT) Date: Mon, 28 Mar 2022 18:32:46 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1648485168; 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=s8R1rFpKPGiX8tjGMLwDE5ZH7Zajq5rA2088Om6hAHo=; b=eXTKy1Uso/VUNvAsvpJ137VDRkdojOQXWHib8tpLLwnH/2Z+7n5+FDi3Ta2Tvtk2ZyQDT2 3DEogWfW4rVM4xIuKGBPO+jCd5HxcFD4VKTcSVRpVaLcvKhOyCwnK+0cdUEgSfhmPFZd1c KL3e8SxzHWt2anLOYVZz+BTtS4ue/GZ1KyPdpPM2nLR0QtqOdXrIH1S7GLMOgsfEHpiOnm 3Kn6Ru3SUVkB8GYsgexhaxMoL5x1ou/n0hxt6I+PKIji3p0qZsRJiyT9EMmNcSkBUW+N49 z3H6/WydomIyrcmxDf1q7QvqKD9cOacSIvDUuqLOQxqT29ZwIacCvWCVKmrz2w== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1648485168; 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=s8R1rFpKPGiX8tjGMLwDE5ZH7Zajq5rA2088Om6hAHo=; b=Ly+2vTanCidedkBsGTsZ8Po7DAmp4mhC1h9ppOeYA6tzf4slNkMND8z1bABgnhlI+zeqsU OPgk7cRmP4RyWcBQ== From: Sebastian Andrzej Siewior To: "Eric W. Biederman" Cc: x86@kernel.org, linux-kernel@vger.kernel.org, Oleg Nesterov , "H. Peter Anvin" , Andy Lutomirski , Ben Segall , Borislav Petkov , Daniel Bristot de Oliveira , Dave Hansen , Dietmar Eggemann , Ingo Molnar , Juri Lelli , Mel Gorman , Peter Zijlstra , Steven Rostedt , Thomas Gleixner , Vincent Guittot Subject: Re: [PATCH] signal/x86: Delay calling signals in atomic Message-ID: References: <8735j2xigt.fsf@email.froward.int.ebiederm.org> <87h77iw34u.fsf@email.froward.int.ebiederm.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <87h77iw34u.fsf@email.froward.int.ebiederm.org> X-Spam-Status: No, score=-2.0 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RDNS_NONE,SPF_HELO_NONE,T_SCC_BODY_TEXT_LINE autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2022-03-28 09:41:37 [-0500], Eric W. Biederman wrote: > I want to say the patch below looks like it was a perfectly fine debug > patch to see if what someone thinks is the issue is the issue. It is > not a good final solution for the reasons I have already mentioned. > > May I ask where the rest of the conversation was? I can only find the > single posting of this patch on linux-kernel without any conversation, > and the description indicates this change has seen several rounds of > development. There was not feedback based on what has been posted to lkml. This, was ended as this patch, was originally posted by Steven as https://lore.kernel.org/linux-rt-users/20120124191454.345715521@goodmis.org/ a few iterations later we got to v4 in https://lore.kernel.org/linux-rt-users/20120203183041.427463295@goodmis.org/ which got review from Oleg and then become Oleg's in v5 https://lore.kernel.org/linux-rt-users/20120208005850.233662427@goodmis.org/ and was part of the RT queue since v3.0.20-rt36. > Eric Sebastian