Received: by 2002:a25:d7c1:0:0:0:0:0 with SMTP id o184csp5100808ybg; Mon, 21 Oct 2019 20:59:05 -0700 (PDT) X-Google-Smtp-Source: APXvYqx8rVUsq+JlMOhqjoISTf3NGfWx36WnjV+8cE4lo25fBarOaKjDFHyaUviUOvScHgFzPjAe X-Received: by 2002:aa7:d8d5:: with SMTP id k21mr26061045eds.286.1571716744996; Mon, 21 Oct 2019 20:59:04 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1571716744; cv=none; d=google.com; s=arc-20160816; b=fzrUZW9fqyNQuw/6Mq1gdMjDfqThzdHOXx04hQxawF8/RLGii+O66+YK8WalZk2cE0 mbCUzt+vCAombQOiSQvnnllYTQIrdmgd59O22WS+S8ZeAAgON14oPrWhHt9d4PCGtM6m ipaeMH8F+8LPNno6qoZVaLPRJ21pTlllKGrceBn6S3D1iy5HQwfSy6GTLzZZyoT4RAHO xL9ILk5J0o5JjZfk7mX0iW2C+ewJsHlABoFx1cZ8fQQD5kIYgjYooVotRn2GeAHqCJZl cfjGNigRCyZyYCKz8K2yrthpxyhahSm7Cw7NFK4Bsb459yY/kniV2wM0j/CErTXZRNZD 39NA== 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:dkim-signature; bh=ZAPGJLGkpLt03GDqGjl9b9EckNEBlsALSuZc6+cH8/4=; b=pxNQ8cWNvODgg64hq6DjlQ/WyQSCIqIE7TAqfQkZDWBgMdtWt2d1g3c5Y1Sv736wjh SgK1mrwgXyPDbFyPZjqNzOLONeCD2o95VEICo8cWNxAGPndAdcKLpzyPrEAhz6f4KSWF c9HUYaPedaqM7H1/Pl5nIDXwhf0qJ+Y2NnJWFnU5HPDhSd8czoif/a+ciaRf78LvLdZ+ vr/wkDvq8KXRy14zmuk8q9n3HJgRQ1xZ9X5NbEFq2abkSl+oJ2rSBLpxWRbXlb7y/dGj UVeconXIUrplhqGE4UXZYS/KqU4AcvEsDnSW3nZKpc7vtX7GKuUTMnd40qiZ3iDAjvCh u5nA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@gmail.com header.s=20161025 header.b=d6jZ5D4c; 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=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id m10si9808833ejc.337.2019.10.21.20.58.41; Mon, 21 Oct 2019 20:59:04 -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; dkim=pass header.i=@gmail.com header.s=20161025 header.b=d6jZ5D4c; 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=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730969AbfJVDz2 (ORCPT + 99 others); Mon, 21 Oct 2019 23:55:28 -0400 Received: from mail-pf1-f195.google.com ([209.85.210.195]:35004 "EHLO mail-pf1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730597AbfJVDz2 (ORCPT ); Mon, 21 Oct 2019 23:55:28 -0400 Received: by mail-pf1-f195.google.com with SMTP id 205so9771305pfw.2 for ; Mon, 21 Oct 2019 20:55:27 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=ZAPGJLGkpLt03GDqGjl9b9EckNEBlsALSuZc6+cH8/4=; b=d6jZ5D4c6r3NrKHZbJkqoTviZCD8ZqX60zbv6be60XasYUIuTDOduZHnFMJsLa72Xz x9n/GTFtEr4m1RZyyg/1ramZ1jo3OmdO+Y7SYmX7rYnc2ypWX03ek9Wa5zC4Y+tMFJnU /zVwHuXcny5FfFnyKtK7C1IcQuHseCqzimtG660aZiuA/3m/RXdfScipE1wEIH7K80jZ Kt62zfznqbgzTtdIBgf9VMSOwloLk207gRRZ/M5i5ILTRN4X17X5eCVnR8O7R92RR05k xp9eqiFXyj3zMPNCOycy2ttjvIJqc6UNvjr17eBeZiz+Zmm/xAt79VkqXJFNAS7oYt1O s6cg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=ZAPGJLGkpLt03GDqGjl9b9EckNEBlsALSuZc6+cH8/4=; b=quhV9PotrMntqS4lyhn4jtZsjhkZb/eIa7xt2aqQuRs93e0wY3EhrUeDMQ2cPD7Vgl Z6DSDohX6+rgIzRv6Hy/vErXJGRx7IpEUmVpcvp9bki8E0bAt8w49lVlV0v7E1vjnESo 3AK4Rh78lAmB7rqXG1Xw8BpjMtFwmoqmnvLETQEnSCB6T+EhYazQjgKaYyIgJryh2b3V ENeeLAaqnu1NUhd1cf7RYHepEypQTE2xxkFNZCNG1e+cd9FV08SERpDDK1BNWluRODuX Xu+Ky+1GPwiH75xlJvZ4e+4Hseu6St5ak3KLZRX+9Oe1IjskQ0PIehXompAhrsh1ZiRL FBkg== X-Gm-Message-State: APjAAAXm7n6EHYWJA7iCoPm+SMTq3Uk6R154PK8+O7FadLAIViWg5CsJ 2zXH8GsK4a+RSw1J90PwQoU= X-Received: by 2002:a63:798c:: with SMTP id u134mr1390014pgc.255.1571716527302; Mon, 21 Oct 2019 20:55:27 -0700 (PDT) Received: from ast-mbp.dhcp.thefacebook.com ([2620:10d:c090:180::5ac]) by smtp.gmail.com with ESMTPSA id a17sm17824887pfi.178.2019.10.21.20.55.25 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 21 Oct 2019 20:55:26 -0700 (PDT) Date: Mon, 21 Oct 2019 20:55:24 -0700 From: Alexei Starovoitov To: Steven Rostedt Cc: Peter Zijlstra , Daniel Bristot de Oliveira , LKML , X86 ML , Nadav Amit , Andy Lutomirski , Dave Hansen , Song Liu , Masami Hiramatsu Subject: Re: [PATCH 3/3] x86/ftrace: Use text_poke() Message-ID: <20191022035522.mz5l7edak3beor5u@ast-mbp.dhcp.thefacebook.com> References: <20190827181147.166658077@infradead.org> <20191002182106.GC4643@worktop.programming.kicks-ass.net> <20191003181045.7fb1a5b3@gandalf.local.home> <20191004112237.GA19463@hirez.programming.kicks-ass.net> <20191004094228.5a5774fe@gandalf.local.home> <20191021204310.3c26f730@oasis.local.home> <20191021231630.49805757@oasis.local.home> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20191021231630.49805757@oasis.local.home> User-Agent: NeoMutt/20180223 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Oct 21, 2019 at 11:16:30PM -0400, Steven Rostedt wrote: > On Mon, 21 Oct 2019 20:10:09 -0700 > Alexei Starovoitov wrote: > > > On Mon, Oct 21, 2019 at 5:43 PM Steven Rostedt wrote: > > > > > > On Mon, 21 Oct 2019 17:36:54 -0700 > > > Alexei Starovoitov wrote: > > > > > > > > > > What is the status of this set ? > > > > Steven, did you apply it ? > > > > > > There's still bugs to figure out. > > > > what bugs you're seeing? > > The IPI frequency that was mentioned in this thread or something else? > > I'm hacking ftrace+bpf stuff in the same spot and would like to > > base my work on the latest and greatest. > > There's real bugs (crashes), talked about in later versions of the > patch set: > > https://lore.kernel.org/r/20191009224135.2dcf7767@oasis.local.home > > And there was another crash on Peter's latest I just reported: > > https://lore.kernel.org/r/20191021222110.49044eb5@oasis.local.home ahh. I missed the whole thread. Thanks for pointers.