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 X-Spam-Level: * X-Spam-Status: No, score=1.5 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, FSL_HELO_FAKE,MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED,USER_AGENT_MUTT autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 54544C04EB8 for ; Tue, 4 Dec 2018 08:15:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 19C9B214C1 for ; Tue, 4 Dec 2018 08:15:13 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="vNTthPfv" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 19C9B214C1 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726109AbeLDIPL (ORCPT ); Tue, 4 Dec 2018 03:15:11 -0500 Received: from mail-wr1-f67.google.com ([209.85.221.67]:33897 "EHLO mail-wr1-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726013AbeLDIPL (ORCPT ); Tue, 4 Dec 2018 03:15:11 -0500 Received: by mail-wr1-f67.google.com with SMTP id j2so14880717wrw.1 for ; Tue, 04 Dec 2018 00:15:09 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=GrvPlTg2darvT1roMVfmrgjxwCHPD2JV89EdUGSvoDM=; b=vNTthPfvFuPuv1D6ct6LfQcVLiT8FvLa9bkd/13eAHwvkAfs4LJaD+eaTA9obxO9bc 0o0Idt0SVaKjSjxGABbnb/xpP/zZGI5KBCmanFHeOhSlrsdWOfYOcdBaXEJpL/1tlamO TuC9RQpYCdLIU2okcjilZcWtForwsN9x7JOhX9+OXS0qEJmT1eClXyeCppzeBpLgfgNv EcbCCkY/9BN9J6DCIakEvDT6c/22kBzz95n4CprUN3m8ZpbN2m4/sEkXcrTJUKd+q989 wgiDutFB0Cq9/SVCfoKHZ4DHsSngFwnrUdzgblp85w2tx3Amcl3EYmDTRKI7geApQ/cQ PmNA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:date:from:to:cc:subject:message-id :references:mime-version:content-disposition:in-reply-to:user-agent; bh=GrvPlTg2darvT1roMVfmrgjxwCHPD2JV89EdUGSvoDM=; b=EhBrgVT36zl2el32PvTkM8z++KThgrrdYsD6os3FajAK6oPHEo3lMLmNIdtmVyhUUn ZYHrGexeMmkemncuIjex6nSr+bKlSNpi5mWL2I/2ohYCWcGqI4UL880H6e2Vg/kxocUc 1SN7wQzl1gJ36Sw+FwildUoNq/sZcyHIagkLT+cbUVOcz9gpElbXh/4Gx2ez3DO902MP 470pivBhxdKy5x0OdzcxVTqywCob3FyQlvfNgN1Bmwk7veBQTTYWvlOB+vt2prFKMWn5 Kyy20eje1pfIOmhjA6TmL0NVgQHkFwkud0VIgrAYo08MMmhaiyAWhNZO3jUBM1mqAzFj NgiQ== X-Gm-Message-State: AA+aEWaSMVgCsjudncvFREqFrK6amH/lSeanx2rCOfaOWzWar7SaT/Me XhkT4iRZg7suNMvaV78c4mE= X-Google-Smtp-Source: AFSGD/UfFTdSVpa5X4su2bm+FJwbOsJPIpI62BY2HqvSVaPR3SsEXQruNwqc9+CTUcogsRnBC6sl2g== X-Received: by 2002:adf:a211:: with SMTP id p17mr13687201wra.179.1543911309046; Tue, 04 Dec 2018 00:15:09 -0800 (PST) Received: from gmail.com (2E8B0CD5.catv.pool.telekom.hu. [46.139.12.213]) by smtp.gmail.com with ESMTPSA id c14sm5073254wme.13.2018.12.04.00.15.08 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Tue, 04 Dec 2018 00:15:08 -0800 (PST) Date: Tue, 4 Dec 2018 09:15:06 +0100 From: Ingo Molnar To: Masami Hiramatsu Cc: Steven Rostedt , LKML , Thomas Gleixner , Peter Zijlstra , "H. Peter Anvin" , Andy Lutomirski Subject: Re: Strange hang with gcc 8 of kprobe multiple_kprobes test Message-ID: <20181204081506.GA73770@gmail.com> References: <20181203211807.17e03384@vmware.local.home> <20181204164007.956a3458c9fd301b3d173eba@kernel.org> <20181204170229.4442d43ce956d48619c1d232@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20181204170229.4442d43ce956d48619c1d232@kernel.org> User-Agent: Mutt/1.9.4 (2018-02-28) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Masami Hiramatsu wrote: > I remember I have fixed this, and actually WE did it :-D > > https://lkml.org/lkml/2018/8/23/1203 > > Ah, we hit a same bug... > > Ingo, could you pick the patch? Should I resend it? Indeed: I just picked it up into tip:perf/urgent. It's my bad: I missed the original submission due to Steve's feedback which I mistook as a request for another iteration, while he only commented on the reason for the original breakage and gave his Reviewed-by ... Thanks, Ingo