Received: by 2002:a25:4158:0:0:0:0:0 with SMTP id o85csp5000708yba; Tue, 30 Apr 2019 07:39:30 -0700 (PDT) X-Google-Smtp-Source: APXvYqym++0+7pvCz5kx7Ij9IBL0sYEuOyw2DP1V4/dusAqUaOv1FutVlVdlKEr05SCG+Q1NIw7A X-Received: by 2002:a17:902:e58a:: with SMTP id cl10mr21445684plb.226.1556635170149; Tue, 30 Apr 2019 07:39:30 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1556635170; cv=none; d=google.com; s=arc-20160816; b=oK2jx0bJFZepAV/VNoiUcCEwrANBKMIlsdqaCkK3AFKL9UuLW0iLVE0g8cWOg8nBvo 54y9GShpc2z/za6Sg4POSD9PdNQP7tVJFt9MyNEPwwRzZIZln24h2hTDCGGQeqKJDSiB aGTEkPVkZ3QxADjByDDK/4IUQKLj1ZUVbmHgm7UBueAFFothROKju8A2GM6rRYRUH7eJ a0fEab+5Q4g9tvwUiYldMvyYTg2Hdl519PMEufY1790CLsfKyKeLYBhJ4tqArET+kcHQ +zL44fPbv6U5XcHQi3llCfjT7v+1d8ivJd99P5+1ujrdLnd3PzHKbzSJ7W4bSJXRzhJN FQ1g== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:mime-version :references:in-reply-to:message-id:subject:cc:to:from:date; bh=QV0sqlmNpGTNG0RJh/r/5t1DN1qV6tBj3GODNZ9trUk=; b=X0DFBSW5mH8X0CLjc8wCVG3MBeUhaDogTH/jXlKvSPlKqf+eMML9c3/cDHkXeZ1g6l dfSPXvxKbp4WrPWZMG84vo+tesm7SJsT6c3xA3lWly2Lcw6uZKbAGbj/Sy/w83NzPHB8 6dJkULF+lGezlB73OPyLbyPIAaw+cPyCk7nHHY75AqMkdj+iMB1m4zVZkRdMxs7aiSFw pxWd/FWPOs4q2Zqoo3LWxCVunS54MqJBMEi98gyZ+dKW1McNBpZRwzyUtY/ORTJPjCX/ D9/WD71DlT3yU5EJRzHw/wxVxftY38nBRyU+vPpInLq55TtXMSQ0tjPC9DfkVZJbMbrD 9i4w== 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 Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id cm19si8674592plb.202.2019.04.30.07.39.13; Tue, 30 Apr 2019 07:39:30 -0700 (PDT) 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 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727469AbfD3Ogg (ORCPT + 99 others); Tue, 30 Apr 2019 10:36:36 -0400 Received: from mail.kernel.org ([198.145.29.99]:52974 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726145AbfD3Ogg (ORCPT ); Tue, 30 Apr 2019 10:36:36 -0400 Received: from gandalf.local.home (cpe-66-24-58-225.stny.res.rr.com [66.24.58.225]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id E360220835; Tue, 30 Apr 2019 14:36:32 +0000 (UTC) Date: Tue, 30 Apr 2019 10:36:29 -0400 From: Steven Rostedt To: Peter Zijlstra Cc: Linus Torvalds , Nicolai Stange , Thomas Gleixner , Ingo Molnar , Borislav Petkov , "H. Peter Anvin" , the arch/x86 maintainers , Josh Poimboeuf , Jiri Kosina , Miroslav Benes , Petr Mladek , Joe Lawrence , Shuah Khan , Konrad Rzeszutek Wilk , Tim Chen , Sebastian Andrzej Siewior , Mimi Zohar , Juergen Gross , Nick Desaulniers , Nayna Jain , Masahiro Yamada , Andy Lutomirski , Joerg Roedel , Linux List Kernel Mailing , live-patching@vger.kernel.org, "open list:KERNEL SELFTEST FRAMEWORK" Subject: Re: [PATCH 3/4] x86/ftrace: make ftrace_int3_handler() not to skip fops invocation Message-ID: <20190430103629.0899b3a8@gandalf.local.home> In-Reply-To: <20190430142047.GF2589@hirez.programming.kicks-ass.net> References: <20190427100639.15074-1-nstange@suse.de> <20190427100639.15074-4-nstange@suse.de> <20190427102657.GF2623@hirez.programming.kicks-ass.net> <20190428133826.3e142cfd@oasis.local.home> <20190429145250.1a5da6ed@gandalf.local.home> <20190430104648.GR2623@hirez.programming.kicks-ass.net> <20190430094445.13e61f41@gandalf.local.home> <20190430142047.GF2589@hirez.programming.kicks-ass.net> X-Mailer: Claws Mail 3.17.3 (GTK+ 2.24.32; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 30 Apr 2019 16:20:47 +0200 Peter Zijlstra wrote: > > > > Sure, but that's a completely different issue. We would need to solve > > the 'emulate' call for batch mode first. > > I don't see a problem there; when INT3 happens; you bsearch() the batch > array to find the one you hit, you frob that into the percpu variables > and do the thing. Or am I loosing the plot again? I may need to tweak Linus's patch slightly, but I may be able to get it to work with the batch mode. -- Steve