From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail-bk0-f48.google.com ([209.85.214.48]:39782 "EHLO mail-bk0-f48.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753055Ab3IQSZW (ORCPT ); Tue, 17 Sep 2013 14:25:22 -0400 Message-ID: <52389E8E.3050202@googlemail.com> Date: Tue, 17 Sep 2013 20:25:18 +0200 From: Frank Dierich MIME-Version: 1.0 To: linux-usb CC: Hans de Goede , linux-media@vger.kernel.org, gregkh@linuxfoundation.org Subject: Re: [Bug] 0ac8:0321 Vimicro generic vc0321 Camera is not working and causes crashes since 3.2 References: <522C618E.6020203@googlemail.com> <522DBA8F.4090505@redhat.com> <522F6378.8000808@googlemail.com> In-Reply-To: <522F6378.8000808@googlemail.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-media-owner@vger.kernel.org List-ID: > On 09/09/2013 02:09 PM, Hans de Goede wrote: >> Thanks for the bug report, looking at the bug reports, they all >> report an error of -71 which is >> EPROTO, which typically means something is wrong at the USB level. >> >> And nothing has changed for the driver in question between 3.1 and >> 3.2 , so I believe this regression >> is caused by changes to the usb sub-system, likely changes to the >> EHCI driver. I have tested the new 3.12.0-rc1 kernel and the regression is still present. It causes that Cheese crashes with a segmentation fault and I get the following errors [ 139.868628] gspca_main: ISOC data error: [21] len=0, status=-71 [ 139.904620] gspca_main: ISOC data error: [12] len=0, status=-71 [ 139.936595] gspca_main: ISOC data error: [9] len=0, status=-71 [ 139.968576] gspca_main: ISOC data error: [17] len=0, status=-71 [ 140.036571] gspca_main: ISOC data error: [16] len=0, status=-71 [ 140.037364] video_source:sr[2570]: segfault at 8 ip 00007f0430d6868c sp 00007f0406c02900 error 4 in libgstreamer-0.10.so.0.30.0[7f0430d15000+de000] [ 140.068533] gspca_main: ISOC data error: [24] len=0, status=-71 [ 140.104519] gspca_main: ISOC data error: [15] len=0, status=-71 [ 140.168474] gspca_main: ISOC data error: [20] len=0, status=-71 [ 140.200461] gspca_main: ISOC data error: [28] len=0, status=-71 Frank