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=0.9 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, FSL_HELO_FAKE,MAILING_LIST_MULTI,SPF_PASS,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 7F513C43441 for ; Fri, 12 Oct 2018 10:53:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3930F20868 for ; Fri, 12 Oct 2018 10:53:01 +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="PQ/5Sucz" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3930F20868 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 S1728180AbeJLSYu (ORCPT ); Fri, 12 Oct 2018 14:24:50 -0400 Received: from mail-wr1-f68.google.com ([209.85.221.68]:46740 "EHLO mail-wr1-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726664AbeJLSYt (ORCPT ); Fri, 12 Oct 2018 14:24:49 -0400 Received: by mail-wr1-f68.google.com with SMTP id n11-v6so12845374wru.13 for ; Fri, 12 Oct 2018 03:52:58 -0700 (PDT) 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=stEK0hPyCvUxQfCtmaOuzIg/Ce472ccHN2oxU3ZUPqE=; b=PQ/5Sucz3MUBlPcPsQs7RsQ5T+EqQ9WqCY7fZ7oBnOKCc4h+QpEX3MWeTmAZXU35Ur s0M4uNWW1HmizvYw1MDg+MoYifUApzMGFC+5v5HrePriITW2LO2qw4T2+9eREOGIbTFH fhcWyIef1CPHv4jOizJ+ByL9MvgzNHpsZwsDPtRubC8Z7SbsR9Bup0K5q9pKyJag3uQ5 BDgbi/sSvuNE8v2hnPUghCGdSOPeKx+fETQzF2RYNlktFQ2XkYOgXKTFqnovr98+PWYy TC3bWTKYw/8uk217SYCOiPgaK9A2j2sgf0deXgA5SxHcJOFkpMzz6alzIQTqikzC6nsW qxfg== 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=stEK0hPyCvUxQfCtmaOuzIg/Ce472ccHN2oxU3ZUPqE=; b=CiFeaSCTb9eyw78ESZpI4s6Urtj1sOScMJTwtrYBmpD2IOc0xrWz2LpNFMjLfYre21 OuAnThc3+4/XbR3LxaM7glpJAUVxZ9nP/uOL1Aj+KS807OkswFFWJYzb8tO+6KILjsPt iQerG5pJ0H14u2OPvbi4wSK8PC8nn5r6Q6HMJOrISG1Q7cF2wroOJJi92rt7M5CFXy7i tesSkgEnAJlXA94IgQ12Frlm6jEPO8qlFAGCsVURaTqyzAwJP9HJoRgthTq0bpNdh+tb l0SlbP7mH9dovzlaAY76nWWXuf7SEmDa1ZZM+uvpvbaEtC7o+SjZR3x4zUgeZbW0BqVB oUQg== X-Gm-Message-State: ABuFfogVX9aGAwbgm4GPYShfe2VTEBrYoyoss1H/U82D+7mWgXIKdLSm 518Q8ZKQyzO354vASG9ebH4= X-Google-Smtp-Source: ACcGV61bloZoS074EZS6PoTv3kH5qv3LFwLLig/FZ4XPmzsO4uAiKfHAuDjkhaXoq2fRkpP+9BbnIA== X-Received: by 2002:adf:c00e:: with SMTP id z14-v6mr4830962wre.268.1539341577483; Fri, 12 Oct 2018 03:52:57 -0700 (PDT) Received: from gmail.com (2E8B0CD5.catv.pool.telekom.hu. [46.139.12.213]) by smtp.gmail.com with ESMTPSA id t24-v6sm565380wra.5.2018.10.12.03.52.56 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Fri, 12 Oct 2018 03:52:56 -0700 (PDT) Date: Fri, 12 Oct 2018 12:52:54 +0200 From: Ingo Molnar To: Pavel Machek Cc: Thomas Gleixner , sfr@canb.auug.org.au, kernel list , mingo@redhat.com, bp@alien8.de, hpa@zytor.com, x86@kernel.org Subject: Re: -next20181010,1011 regression: thinkpad x60 (32 bit) dies during boot. Message-ID: <20181012105254.GA114888@gmail.com> References: <20181010195920.GA13860@amd> <20181010200331.GA13975@amd> <20181011180328.GA6740@amd> <20181012102459.GA4469@amd> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20181012102459.GA4469@amd> 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 * Pavel Machek wrote: > Hi! > > > > > > I updated to todays next... and boot crashes with > > > > > > > > > > .. > > > > > Call Trace: > > > > > kick_ilb > > > > > trigger_load_balance > > > > > ? active_load.. > > > > > scheduler_tick > > > > > update_process_times > > > > > tick_nohz_handler > > > > > > > > > > -next20181005 worked ok. > > > > > > Problem is still there in today's next. > > > > So what came in between -next20181005 and the first bad one? kernel/sched/* > > being the first place to look at. > > kernel/sched does not seem to contain anything too scary. > > I know that -next20181005 works ok, and I know -next20181010 is > bad. Is there easy way to bisect using that information? I can do > bisect between -next and mainline, but that's a lot of patches and > thus not much fun :-(. > > In the meantime, I reproduced the failure with T40p. Is there someone > with working x86-32 in -next? Does latest -tip fail too? If yes then I suspect bisection would be needed. Thanks, Ingo