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=-2.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FAKE_REPLY_C,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,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 3AEE2CA9EB5 for ; Mon, 4 Nov 2019 14:59:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0167021E6F for ; Mon, 4 Nov 2019 14:59:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1572879582; bh=oxFWubMhfxFNkqviug7uMpFZBcHZH5hqYH/tE3uXdbw=; h=Date:From:To:Cc:Subject:In-Reply-To:List-ID:From; b=AizgWbwE2vTH++3xC7vSpZ38j3jZ5bqA4os8mfUkr+7UrNc/A8oLlyInOpaHoA7rD 5YFtekmn/rXhFUNZx5tsiUsV8yz/l1T7n5+GoggtIhUXXr5gXVne37HFKUrt0c2MYO y7oP391NMIkQ0EbUMvwLlb7H8rdzBiDQ9hMODYYA= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727861AbfKDO7l (ORCPT ); Mon, 4 Nov 2019 09:59:41 -0500 Received: from mail.kernel.org ([198.145.29.99]:56094 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727788AbfKDO7l (ORCPT ); Mon, 4 Nov 2019 09:59:41 -0500 Received: from localhost (unknown [69.71.4.100]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 9A6B421D7F; Mon, 4 Nov 2019 14:59:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1572879580; bh=oxFWubMhfxFNkqviug7uMpFZBcHZH5hqYH/tE3uXdbw=; h=Date:From:To:Cc:Subject:In-Reply-To:From; b=T9froDd0v/uMpkUCI3pSB0ZHkdhR1M+T/5pJ7IImj3kG33oCdYJIYIYzzneRf/kMn +FdYNxJ8rgC4jvKmf8abUqKLPEhmo4sLQrd5tuS35RJSHMYv7HFweOEZHsrRHxuQa+ eDWTAWUVqJiijItsoYV0cXou8PfKo3ia6C9/aAYg= Date: Mon, 4 Nov 2019 08:59:39 -0600 From: Bjorn Helgaas To: Carlo Pisani Cc: bjorn@helgaas.com, linux-pci@vger.kernel.org Subject: Re: Oxford Semiconductor Ltd OX16PCI954 - weird dmesg Message-ID: <20191104145939.GA93344@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org On Mon, Oct 28, 2019 at 07:49:55PM +0100, Carlo Pisani wrote: > > It looks like you're using a v4.4-based kernel, which is 3 1/2 years > > old. In general people are not very interested in debugging kernels > > that old. It's better if you can reproduce the problem on a current > > kernel, then backport the fix if you need it in an older kernel. > > as specified in this topic (1), kernel >= v4.11 does not even boot on rb532. > When tftpboot, the firmware says "out of range", and hangs. I think the first step is to fix the problem that prevents current kernels from booting. It's not really practical to debug v4.4. It sounds like the firmware fails to even load v4.11? If that's the case, it's probably not a problem with the kernel itself, since it hasn't even started executing. Possibly a kernel size problem? Maybe the v4.11 kernel is larger than v4.4, v4.9, etc? Does v4.11 boot if you strip out non-essential drivers? > (1) http://www.downthebunker.com/reloaded/space/viewtopic.php?f=79&p=2755