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 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E730DC433EF for ; Thu, 30 Sep 2021 18:18:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C4DB061994 for ; Thu, 30 Sep 2021 18:18:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1353392AbhI3STr (ORCPT ); Thu, 30 Sep 2021 14:19:47 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33638 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1353388AbhI3STq (ORCPT ); Thu, 30 Sep 2021 14:19:46 -0400 Received: from mail-pj1-x102a.google.com (mail-pj1-x102a.google.com [IPv6:2607:f8b0:4864:20::102a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1D098C06176A; Thu, 30 Sep 2021 11:18:04 -0700 (PDT) Received: by mail-pj1-x102a.google.com with SMTP id g13-20020a17090a3c8d00b00196286963b9so7402079pjc.3; Thu, 30 Sep 2021 11:18:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=v0dcJF6a5J2i4qY/SGIztVAuNG3UpRFiPiTeCiiLeXw=; b=K7KcDmoEGcmRy/ev728uCqbOciKfkFzSCtcpwRhwBSXjOOXO6C9yxp68gTf7fZXdrX pFU7uQFci1ftfymZhaG54CXV4f+9JZanZSpYyuB5XHz7/ZcEG+DYYOy8dME9qhxnYXgq dJuzqZPmGalsmFmTpl29rLA4F7ukQ3KsdwqgbIGtZ6XLMh7k+3Ik9RkkvBSAGTLd98hQ +wQbrHXcEYd23UwO4fq5x5f7DEfk8Ze5pRD3ZnICnbWxFkCKMKTqjr5PiAYDENnC/1Sg ycjM7x+uz70iK9+3rQ5JlrT3enSXmJOB7o1ZAYbsRkEwaFelo9f5BiKHaCNCwo2len4h pksQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=v0dcJF6a5J2i4qY/SGIztVAuNG3UpRFiPiTeCiiLeXw=; b=uU5BDPyBnZDebRhYFmkzc/neMBrhMIA3vhaxEv7Z1h1f+INo9HTtzuZ731h9ZEx3sI aXmU+y36d4tRmAIgnoGsb9sQy63czqalu+PkdXSLBUpHbx/qSgCFNoqramdtiecCOjXC 4bDpLC/aUV/QWm4IQzLEIVlYSR4X7Pb9FgJEUP6z3iSDTegEi2rtKzbqNE1/ruZG/+PJ 4kf3aVYGC/b9BCcNCxDCGrs5msg85pVenqdzovYu90wNe/Mo2rxKFRvze2OzX2AN1FsT rxcR8QUtpojpIWtWOaBgLusFgGDqPjvhFUidw7hdQSaM+edJjxFKnTDrBYA++iLfE8kf Y3mQ== X-Gm-Message-State: AOAM533YQNmWex+Txsq7vBslJvBOTDz3hWP0UhyGE9bl4ezPjxTiBg+J TtQuhUbUJ7iVO1xBApMOtHEPuFam9eT77gDYjpykpvKz X-Google-Smtp-Source: ABdhPJxC+hXxl9QBdPlY95tL8Mi61q4aBvm5ltbF6eOcGtgP+eJO2ujnk2r9nPH4D5QCN7Ls2L94LSSni/JO8cOdiJs= X-Received: by 2002:a17:90a:19d2:: with SMTP id 18mr14611570pjj.122.1633025883579; Thu, 30 Sep 2021 11:18:03 -0700 (PDT) MIME-Version: 1.0 References: <163163030719.489837.2236069935502195491.stgit@devnote2> <20210929112408.35b0ffe06b372533455d890d@kernel.org> In-Reply-To: <20210929112408.35b0ffe06b372533455d890d@kernel.org> From: Alexei Starovoitov Date: Thu, 30 Sep 2021 11:17:52 -0700 Message-ID: Subject: Re: [PATCH -tip v11 00/27] kprobes: Fix stacktrace with kretprobes on x86 To: Masami Hiramatsu , Linus Torvalds Cc: Steven Rostedt , Josh Poimboeuf , Ingo Molnar , X86 ML , LKML , bpf , Jakub Kicinski , Ingo Molnar , Thomas Gleixner , Borislav Petkov , Peter Zijlstra , Kernel Team , linux-ia64@vger.kernel.org, Abhishek Sagar , Andrii Nakryiko , Paul McKenney Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org On Tue, Sep 28, 2021 at 7:24 PM Masami Hiramatsu wrote: > > Hi Ingo, > > Can you merge this series to -tip tree since if I understand correctly, > all kprobes patches still should be merged via -tip tree. > If you don't think so anymore, I would like to handle the kprobe related > patches on my tree. Since many kprobes fixes/cleanups have not been > merged these months, it seems unhealthy now. > > Thank you, Linus, please suggest how to move these patches forward. We've been waiting for this fix for months now. > On Tue, 14 Sep 2021 23:38:27 +0900 > Masami Hiramatsu wrote: > > > Hello, > > > > This is the 11th version of the series to fix the stacktrace with kretprobe on x86. > > > > The previous version is here; > > > > https://lore.kernel.org/all/162756755600.301564.4957591913842010341.stgit@devnote2/ > > > > This version is rebased on the latest tip/master branch and includes the kprobe cleanup > > series[1][2]. No code change. > > > > [1] https://lore.kernel.org/bpf/162748615977.59465.13262421617578791515.stgit@devnote2/ > > [2] https://lore.kernel.org/linux-csky/20210727133426.2919710-1-punitagrawal@gmail.com/ > > > > > > With this series, unwinder can unwind stack correctly from ftrace as below;