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_HELO_NONE,SPF_PASS 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 D49B5C433DF for ; Fri, 22 May 2020 01:30:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B01BA207F7 for ; Fri, 22 May 2020 01:30:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726829AbgEVBaI (ORCPT ); Thu, 21 May 2020 21:30:08 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45608 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726693AbgEVBaI (ORCPT ); Thu, 21 May 2020 21:30:08 -0400 Received: from ZenIV.linux.org.uk (zeniv.linux.org.uk [IPv6:2002:c35c:fd02::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 79676C061A0E; Thu, 21 May 2020 18:30:06 -0700 (PDT) Received: from viro by ZenIV.linux.org.uk with local (Exim 4.93 #3 (Red Hat Linux)) id 1jbwVS-00DFOA-8Y; Fri, 22 May 2020 01:29:50 +0000 Date: Fri, 22 May 2020 02:29:50 +0100 From: Al Viro To: Guenter Roeck Cc: ira.weiny@intel.com, linux-kernel@vger.kernel.org, Andrew Morton , Thomas Bogendoerfer , "James E.J. Bottomley" , Helge Deller , Benjamin Herrenschmidt , Paul Mackerras , "David S. Miller" , Thomas Gleixner , Ingo Molnar , Borislav Petkov , x86@kernel.org, "H. Peter Anvin" , Dave Hansen , Andy Lutomirski , Peter Zijlstra , Chris Zankel , Max Filippov , Dan Williams , linux-snps-arc@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, sparclinux@vger.kernel.org, linux-xtensa@linux-xtensa.org, dri-devel@lists.freedesktop.org, Christian Koenig , Christoph Hellwig Subject: Re: [PATCH] arch/{mips,sparc,microblaze,powerpc}: Don't enable pagefault/preempt twice Message-ID: <20200522012950.GN23230@ZenIV.linux.org.uk> References: <20200507150004.1423069-8-ira.weiny@intel.com> <20200518184843.3029640-1-ira.weiny@intel.com> <20200519165422.GA5838@roeck-us.net> <20200521172704.GF23230@ZenIV.linux.org.uk> <20200521224612.GJ23230@ZenIV.linux.org.uk> <20200522004618.GA3151350@ZenIV.linux.org.uk> <970857bd-bb56-7b2e-833e-ca74a82fa9b5@roeck-us.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <970857bd-bb56-7b2e-833e-ca74a82fa9b5@roeck-us.net> Sender: linux-csky-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-csky@vger.kernel.org On Thu, May 21, 2020 at 06:11:08PM -0700, Guenter Roeck wrote: > Mainline, with: > > qemu-system-sparc -M SS-4 -kernel arch/sparc/boot/zImage -no-reboot \ > -snapshot -drive file=rootfs.ext2,format=raw,if=scsi \ > -append "panic=-1 slub_debug=FZPUA root=/dev/sda console=ttyS0" > -nographic -monitor none > > The machine doesn't really matter, though. It does, unfortunately - try that with SS-10 and watch what happens ;-/