From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753193Ab1E3JT0 (ORCPT ); Mon, 30 May 2011 05:19:26 -0400 Received: from mail-wy0-f174.google.com ([74.125.82.174]:64190 "EHLO mail-wy0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751951Ab1E3JTZ (ORCPT ); Mon, 30 May 2011 05:19:25 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:user-agent:mime-version:to:cc:subject :references:in-reply-to:content-type:content-transfer-encoding; b=m+FtP2gIWlKEMY1TYunP/LAP/FB9cfEUnc452r3u0K6Phs3W14+SeUxuPvEIs1rQ+D IjImgLnHY5yk5oyQoZxXltEu1Sibi/mzpk6cIKSD2B/Nu6DCw/PPmX5bgPhiizWSBIK/ tWTi3U8xNZn1Q0EqSEQEs/dTkk/FOnflcNCbA= Message-ID: <4DE36118.4050706@gmail.com> Date: Mon, 30 May 2011 11:19:20 +0200 From: Riccardo Magliocchetti User-Agent: Mozilla/5.0 (X11; U; Linux i686 (x86_64); en-US; rv:1.9.2.17) Gecko/20110516 Icedove/3.1.10 MIME-Version: 1.0 To: Oliver Neukum CC: linux-usb@vger.kernel.org, Linux Kernel Mailing List , Oliver Neukum , Greg Kroah-Hartman Subject: Re: [2.6.39] crash in acm_ctrl_msg+0x16/0x59 References: <4DE25252.7050503@gmail.com> <201105300754.14490.oneukum@suse.de> In-Reply-To: <201105300754.14490.oneukum@suse.de> Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, Il 30/05/2011 07:54, Oliver Neukum ha scritto: > Am Sonntag, 29. Mai 2011, 16:04:02 schrieb Riccardo Magliocchetti: > >> mtp-probe: bus: 6, device: 4 was not an MTP device >> [20462.901834] cdc_acm 6-1:1.0: ttyACM0: USB ACM device >> [20462.904417] usbcore: registered new interface driver cdc_acm >> [20462.904420] cdc_acm: v0.26:USB Abstract Control Model driver for USB >> modems and ISDN adapters >> [20463.624142] usb 6-1: USB disconnect, device number 4 >> [20463.641859] CPU 0 >> >> This is the stracktrace: >> >> acm_ctrl_msg+0x16/0x59 >> mutex_lock+0x13/0x2a >> acm_port_down+0x4c/0xcb >> acm_tty_close+0x75/0x93 >> tty_release+0x1b5/0x47c >> ? compat_do_readv_write+0x199/0x1ae >> fput+0xf8/0x1ad >> filp_close+0x69/0x75 >> sys_close+0x8a/0xea >> sysenter_dispatch+0x07/0x32 > > So we are trying to talk to a device that is already gone. > Is there anything unusual about your device? Could you > post "lsusb -v"? Yes, the unusual thing is that is very prone to freezing when booting, in fact it freezed when i got the crash in the laptop. Will post lsusb output later in the day. thanks, riccardo