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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8FFB2C00140 for ; Wed, 10 Aug 2022 13:00:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232470AbiHJM7t (ORCPT ); Wed, 10 Aug 2022 08:59:49 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55844 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232450AbiHJM7E (ORCPT ); Wed, 10 Aug 2022 08:59:04 -0400 Received: from mail-pg1-x535.google.com (mail-pg1-x535.google.com [IPv6:2607:f8b0:4864:20::535]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5ADDC78231 for ; Wed, 10 Aug 2022 05:59:03 -0700 (PDT) Received: by mail-pg1-x535.google.com with SMTP id 12so14293002pga.1 for ; Wed, 10 Aug 2022 05:59:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:in-reply-to:subject:from:references:cc:to :content-language:user-agent:mime-version:date:message-id:sender :from:to:cc; bh=G+L32sQ6yPUQhFNYRyxuuIrjAypmobcY2aa8l8iblIo=; b=o3UQSB8HNEQYpZ0kguNGRWVKvK+ph92UGFW0WsMEDamEQlc0Jtzh9P1cH3IEt2FVGJ x4DZcExWqOzlRsxNLvfPgBTuS5B65Oip1zf+FAyl78gD2n9M7UO5D94gv7c4JQupmDAc 8xb4zkVxJATHIpwKUXHTolvFGvSVyyr7eP1yFotrLi+5SNkeMydzdoQXpxgI+/DAurcY FneyxZpArECjJy+itWLWIYZWgPCTWuVwB36zQ6oJ0CjbjY/biIe6ZKJkcrxZgMxawnVq v9XRJwcdK37jBvmZPGxVZ3X92wkN6mOYQ9xvMdgTzl+AvC10Esx4wCtxAfaafWztxp5H sKng== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:in-reply-to:subject:from:references:cc:to :content-language:user-agent:mime-version:date:message-id:sender :x-gm-message-state:from:to:cc; bh=G+L32sQ6yPUQhFNYRyxuuIrjAypmobcY2aa8l8iblIo=; b=nfWoZ0FnaQYOcx1LaxrGewUSh9fCDTHKSZe33SjORJPSqrcKWhRQcCA7kRvGvUNiRk YSvFHy+wC+ddESsQ4WqoiESFxBJigLPxiXHUAGlOuCf7nVnx9gATmuaaK81hMaeJth8f dUeeQ22TxVWJCqY0cap2yiFII0lt/fEWoTwtaXsFocIDOoAGlnLCW+z3Ey4CUZ1FXVqI MnO68qD9umSrGdaDyTuDfBgPLi2T7x6Y5ROZSPqWhboV42lUTTPxoYWqcGRxHcSUm7wV yy/Aqe0w8P508raNFbGlgMkbCdhijVQBjWp+777I5g+amJWmsAAINw0/JvXe5ht0sPJ6 UPxg== X-Gm-Message-State: ACgBeo2GEpzH50mMU4KEsREUIJqOWw7M0XPErAi2XTx9A7yqyh5C6CwI ONWwjYIeSRjewjKqO7pbkEo= X-Google-Smtp-Source: AA6agR6OtVsr0Y6zpHd8mkIHb/gkL+lEcLCKQ7AOEB6Xobv8Qs1n/WNUaAepNcLIE55e9s9kM0qM6A== X-Received: by 2002:a62:3884:0:b0:52b:ead1:7bc8 with SMTP id f126-20020a623884000000b0052bead17bc8mr27648518pfa.78.1660136341459; Wed, 10 Aug 2022 05:59:01 -0700 (PDT) Received: from ?IPV6:2600:1700:e321:62f0:329c:23ff:fee3:9d7c? ([2600:1700:e321:62f0:329c:23ff:fee3:9d7c]) by smtp.gmail.com with ESMTPSA id h2-20020a17090a054200b001f30b5bb378sm1591107pjf.15.2022.08.10.05.58.59 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 10 Aug 2022 05:59:00 -0700 (PDT) Sender: Guenter Roeck Message-ID: <1196e002-c07d-44fd-b07a-aa5ae446ea0b@roeck-us.net> Date: Wed, 10 Aug 2022 05:58:58 -0700 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.11.0 Content-Language: en-US To: Saravana Kannan Cc: Russell King , Philipp Zabel , Rob Herring , Ulf Hansson , Linus Walleij , Sudeep Holla , Nicolas Saenz Julienne , Geert Uytterhoeven , Marek Szyprowski , Kefeng Wang , Greg Kroah-Hartman , patches@armlinux.org.uk, kernel-team@android.com, linux-kernel@vger.kernel.org References: <20220727181936.3250466-1-saravanak@google.com> <20220809103052.GA1778649@roeck-us.net> <0c6ef9a3-bbb1-9f1c-7f00-ceb05589594e@roeck-us.net> From: Guenter Roeck Subject: Re: [PATCH v6] amba: Remove deferred device addition In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 8/9/22 20:33, Saravana Kannan wrote: [ ... ] > > Can you give me more details on the qemu configuration so I could try > to reproduce it? qemu-system-arm -M vexpress-a9 -kernel arch/arm/boot/zImage -no-reboot \ -initrd rootfs-armv5.cpio -m 128 \ --append "rdinit=/sbin/init console=ttyAMA0,115200" \ -dtb arch/arm/boot/dts/vexpress-v2p-ca9.dtb \ -nographic -monitor null -serial stdio using multi_v7_defconfig will hang nicely with your patch applied, and boot as expected without. This was with qemu v7.0, but I am sure older qemu versions will show the same behavior. The initrd used should not matter, but you'll find it at https://github.com/groeck/linux-build-test/blob/master/rootfs/arm-v7/rootfs-armv5.cpio.gz Guenter