Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751688AbYJSL2f (ORCPT ); Sun, 19 Oct 2008 07:28:35 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750928AbYJSL20 (ORCPT ); Sun, 19 Oct 2008 07:28:26 -0400 Received: from lucidpixels.com ([75.144.35.66]:59144 "EHLO lucidpixels.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750895AbYJSL2Z (ORCPT ); Sun, 19 Oct 2008 07:28:25 -0400 Date: Sun, 19 Oct 2008 07:28:24 -0400 (EDT) From: Justin Piszcz To: linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org Subject: Re: Kernel 2.6.26.5 -> 2.6.27.2 [USB REGRESSION] (USB -> D_STATE) In-Reply-To: Message-ID: References: User-Agent: Alpine 1.10 (DEB 962 2008-03-14) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2277 Lines: 58 On Sun, 19 Oct 2008, Justin Piszcz wrote: > With kernel 2.6.27.2, any processes attempting to use USB hang and go into > D-state, I have never had a problem like this before until 2.6.27.2 (I have > not tried 2.6.27.1 or 2.6.27) > > # lsusb -v > > > open("/dev/bus/usb", O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY|O_CLOEXEC) = > 3 > fstat64(3, {st_mode=S_IFDIR|0755, st_size=140, ...}) = 0 > getdents(3, /* 7 entries */, 4096) = 112 > getdents(3, /* 0 entries */, 4096) = 0 > close(3) = 0 > open("/dev/bus/usb/001", > O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY|O_CLOEXEC) = 3 > fstat64(3, {st_mode=S_IFDIR|0755, st_size=80, ...}) = 0 > getdents(3, /* 4 entries */, 4096) = 64 > open("/dev/bus/usb/001/004", O_RDWR) = 4 > ioctl(4, USBDEVFS_CONNECTINFO > > nut (for UPS) does not start. > > nut 4078 0.0 0.0 1964 856 pts/8 D 07:09 0:00 > /lib/nut/usbhid-ups -a belkin > root 4170 0.0 0.0 2204 1072 pts/8 D+ 07:11 0:00 lsusb -v > > Processes go directly to D-state with 2.6.27.2 for USB. > > Booting back to 2.6.26.5 now to see if everything works again. > > Back to 2.6.25.5, everything works fine: > > # lsusb Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub > Bus 001 Device 004: ID 2040:7501 Hauppauge Bus 001 Device 001: ID 1d6b:0002 > Linux Foundation 2.0 root hub > Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub > Bus 003 Device 002: ID 050d:1100 Belkin Components Bus 003 Device 001: ID > 1d6b:0001 Linux Foundation 1.1 root hub > Bus 002 Device 002: ID 045e:0039 Microsoft Corp. IntelliMouse Optical > Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub > > Relevant configuration files and dmesg output: > http://home.comcast.net/~jpiszcz/20081019/2.6.25.5-usb-working.txt http://home.comcast.net/~jpiszcz/20081019/2.6.27.2-usb-broken.txt http://home.comcast.net/~jpiszcz/20081019/linux-2.6.25.5-config.txt http://home.comcast.net/~jpiszcz/20081019/linux-2.6.27.2-config.txt -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/