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=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 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 CEC66CA9EAF for ; Thu, 24 Oct 2019 13:30:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id ACE9C2166E for ; Thu, 24 Oct 2019 13:30:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727384AbfJXNaK (ORCPT ); Thu, 24 Oct 2019 09:30:10 -0400 Received: from foss.arm.com ([217.140.110.172]:51448 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727333AbfJXNaK (ORCPT ); Thu, 24 Oct 2019 09:30:10 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id AD88AC8F; Thu, 24 Oct 2019 06:29:54 -0700 (PDT) Received: from [10.37.9.200] (unknown [10.37.9.200]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 7EFA53F71A; Thu, 24 Oct 2019 06:29:53 -0700 (PDT) Subject: Re: v5.4-rcX: qemu-system-mips64 userspace segfault To: Bruce Ashfield , linux-mips@vger.kernel.org, paul.burton@mips.com Cc: Richard Purdie References: From: Vincenzo Frascino Message-ID: <40376b35-2220-67b6-7d9b-9a2c2a3874ef@arm.com> Date: Thu, 24 Oct 2019 14:31:57 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.9.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-mips-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org Hi Bruce, On 10/24/19 2:12 PM, Bruce Ashfield wrote: > Hi all, > > I'm not sure if anyone else is running qemu-system-mips64 regularly, > but for the past 4 (or more) years, it has been the primary way that > we run QA on the mips64 Yocto Project reference kernel(s). I take care > of the kernel for the project, so I always have the fun of running > into issues first :D > > That's enough preamble ... > > I wanted to see if anyone recognized the issue that I'm seeing when I > bumped the linux-yocto dev kernel to the v5.4-rc series. > > The one line summary is that I'm seeing a segfault as soon as the > kernel hands off to userspace during boot. It doesn't matter if it is > systemd, sysvinit, or init=/bin/sh .. I always get a segfault. [...] Could you please share the .config you are using? Do you know by any change which vdso clock_mode is set in this scenario? -- Regards, Vincenzo