From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757235Ab1INRtz (ORCPT ); Wed, 14 Sep 2011 13:49:55 -0400 Received: from claw.goop.org ([74.207.240.146]:37494 "EHLO claw.goop.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757195Ab1INRtx (ORCPT ); Wed, 14 Sep 2011 13:49:53 -0400 Message-ID: <4E70D62B.2030007@goop.org> Date: Wed, 14 Sep 2011 09:28:27 -0700 From: Jeremy Fitzhardinge User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:6.0.2) Gecko/20110906 Thunderbird/6.0.2 MIME-Version: 1.0 To: Chris Ball CC: Philip Rakity , "linux-mmc@vger.kernel.org" , Linux Kernel Mailing List , Manoj Iyer Subject: Re: SDHCI regression since 2.6.39 References: <4E6EA3E4.5080401@goop.org> <4E6F8C24.3090207@goop.org> <4E6FA44F.1050705@goop.org> <4E6FBCA1.6040307@goop.org> <4E6FC422.9080306@goop.org> <7C3ED924-555D-4C50-9000-36077650328C@marvell.com> <4E6FCE28.5040403@goop.org> <4E6FDA0B.9060007@goop.org> <4E6FDC3E.8030702@goop.org> <003A4041-99F9-4598-AB9A-D08C76CDAECB@marvell.com> <4E6FFADE.5090004@goop.org> In-Reply-To: X-Enigmail-Version: 1.3.1 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 09/14/2011 06:48 AM, Chris Ball wrote: > Long shot, but did you try removing power completely between the > reboots? I wonder if the PCI config space write patch could be (a) > bogus for your device, and (b) preserved across warm reboot by your > PCI hardware. So, you could just try removing the battery and PSU, > hitting the power button a few times with them unplugged to discharge > caps, and then boot into the old kernel again. I powered it off with battery unplugged for about an hour, and rebooted into the known-working kernel, making sure that any fancy power mgmt features were disabled (like aspm), but it still failed in the same way. I'm wondering if it's simply something like the socket has failed, and one or more of the terminals isn't connecting to the card? Though that would only show problems on card insertion, but I gather the driver is having problems from the moment it detects the controller? J