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=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED autolearn=ham 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 DC759C04AA5 for ; Mon, 15 Oct 2018 12:45:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9923220881 for ; Mon, 15 Oct 2018 12:45:19 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9923220881 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=ellerman.id.au 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 S1726567AbeJOUa0 (ORCPT ); Mon, 15 Oct 2018 16:30:26 -0400 Received: from ozlabs.org ([203.11.71.1]:35471 "EHLO ozlabs.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726319AbeJOUa0 (ORCPT ); Mon, 15 Oct 2018 16:30:26 -0400 Received: from authenticated.ozlabs.org (localhost [127.0.0.1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPSA id 42YdSp5JQFz9s3T; Mon, 15 Oct 2018 23:45:14 +1100 (AEDT) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=ellerman.id.au From: Michael Ellerman To: Stephen Rothwell , Benjamin Herrenschmidt , PowerPC Cc: Linux-Next Mailing List , Linux Kernel Mailing List Subject: Re: linux-next: qemu boot failures with today's linux-next In-Reply-To: <20181015191859.2f600de5@canb.auug.org.au> References: <20181015191859.2f600de5@canb.auug.org.au> Date: Mon, 15 Oct 2018 23:45:10 +1100 Message-ID: <87murfz8dl.fsf@concordia.ellerman.id.au> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Stephen Rothwell writes: > Hi all, > > Today's linux-next tree does not boot in qemu (with kvm or without). > Here is the (non-kvm) boot log (the kvm one is basically the same): > > ------------------------------------------------------ ... > Welcome to Open Firmware > > Copyright (c) 2004, 2017 IBM Corporation All rights reserved. > This program and the accompanying materials are made available > under the terms of the BSD License available at > http://www.opensource.org/licenses/bsd-license.php > > Booting from memory... > OF stdout device is: /vdevice/vty@71000000 > Preparing to boot Linux version 4.19.0-rc7 (sfr@ash) (gcc version 8.2.0 (Debian 8.2.0-4)) #2 SMP Mon Oct 15 18:53:28 AEDT 2018 ^^^^^^^^^^ I assume that's wrong, this is actually linux-next you're booting? > Detected machine type: 0000000000000101 > command line: > Max number of cores passed to firmware: 2048 (NR_CPUS = 2048) > Calling ibm,client-architecture-support... done > memory layout at init: > memory_limit : 0000000000000000 (16 MB aligned) > alloc_bottom : 0000000001640000 > alloc_top : 0000000030000000 > alloc_top_hi : 0000000080000000 > rmo_top : 0000000030000000 > ram_top : 0000000080000000 > instantiating rtas at 0x000000002fff0000... done > prom_hold_cpus: skipped > copying OF device tree... > Building dt strings... > Building dt structure... > Device tree strings 0x0000000001850000 -> 0x0000000001850a02 > Device tree struct 0x0000000001860000 -> 0x0000000001870000 > Quiescing Open Firmware ... > Booting Linux via __start() @ 0x0000000000400000 ... > ------------------------------------------------------ > > I have no idea what may have caused this. If you git Ctrl-a-c you should get the qemu prompt. Then you can run 'info registers' to print the regs and maybe see where it's stuck. And/or build with EARLY_DEBUG_LPAR to get early console output. cheers