From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1762069AbYDNSzq (ORCPT ); Mon, 14 Apr 2008 14:55:46 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756614AbYDNSzi (ORCPT ); Mon, 14 Apr 2008 14:55:38 -0400 Received: from web26113.mail.ukl.yahoo.com ([217.146.182.225]:27755 "HELO web26113.mail.ukl.yahoo.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1756357AbYDNSzg (ORCPT ); Mon, 14 Apr 2008 14:55:36 -0400 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.fr; h=X-YMail-OSG:Received:Date:From:Subject:To:Cc:In-Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding:Message-ID; b=5EwO+7F1TscDA/8R6SfhDwbVeidjb9Jga10HP6ExKU5ClwZnIOkkgQOcmU0lpYGEDu3tkR7qjw5tHHQkOC5AlRRw8469M21jRjBbZKSucxiVze1AEpI6YtBKaBl9Jmad6J8nZ0ygHclUIOLNc4IX16nbRXIKgeRBvq5dt6aarIY=; X-YMail-OSG: vARdOhwVM1nHzg9607Zu6L4fUtWI8Iw2VqDcP7uHgDFGwkyALoUdW9Eh1EGsoiavTw-- Date: Mon, 14 Apr 2008 20:55:31 +0200 (CEST) From: linuxcbon Subject: RE : Re: Question about Creative Webcam Pro PD1030 ? Bug ? To: Mauro Carvalho Chehab Cc: linux-kernel@vger.kernel.org In-Reply-To: <20080412135207.79f7fce1@areia> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Message-ID: <483029.85409.qm@web26113.mail.ukl.yahoo.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --- Mauro Carvalho Chehab a écrit : > On Fri, 11 Apr 2008 00:35:15 +0200 (CEST) > linuxcbon wrote: > > > Hi, > > > > sorry if this is not the correct mail list. > > > > I am not sure if this is a bug, if someone can help me ? > > > > I got a Creative Webcam Pro PD1030. > > > > Drivers are loaded : > > # dmesg |grep ov511 > > drivers/media/video/ov511.c: USB OV511+ video device found > > drivers/media/video/ov511.c: model: Creative Labs WebCam 3 > > drivers/media/video/ov511.c: Sensor is an OV7620AE > > drivers/media/video/ov511.c: Enabling 511+/7620AE workaround > > drivers/media/video/ov511.c: Device at usb-0000:00:02.0-2 registered > to > > minor 0 > > usbcore: registered new interface driver ov511 > > drivers/media/video/ov511.c: v1.64 for Linux 2.5 : ov511 USB Camera > Driver > > > > > > lsmod gives : > > ov511 77072 0 > > squashfs 46856 0 > > compat_ioctl32 1408 1 ov511 > > videodev 27904 1 ov511 > > v4l2_common 16896 1 videodev > > v4l1_compat 14596 1 videodev > > usbcore 127128 6 > usb_storage,usblp,ov511,ehci_hcd,ohci_hcd > > > > # uname -a > > Linux puppypc 2.6.21.7 #1 Sun Feb 24 10:22:08 GMT-8 2008 i686 > GNU/Linux > > > > > > I try for testing > > cat /dev/video > video.avi > > > > I got : > > > > cat: /dev/video*** glibc detected *** cat: free(): invalid next size > > (fast): 0x08050ab8 *** > > ======= Backtrace: ========= > > /lib/libc.so.6[0xb7f4140e] > > /lib/libc.so.6(cfree+0xa9)[0xb7f42bdd] > > /lib/libc.so.6[0xb7f1088c] > > /lib/libc.so.6[0xb7f0f0ef] > > /lib/libc.so.6[0xb7f0edcf] > > /lib/libc.so.6(dcgettext+0x24)[0xb7f0e030] > > /lib/libc.so.6(__strerror_r+0xc9)[0xb7f46b19] > > /lib/libc.so.6[0xb7f89d37] > > /lib/libc.so.6(error+0x89)[0xb7f89f38] > > cat[0x8049321] > > /lib/libc.so.6(__libc_start_main+0x12e)[0xb7f0420e] > > cat[0x8048c5d] > > ======= Memory map: ======== > > 08048000-0804c000 r-xp 00000000 16:05 304622 /bin/cat > > 0804c000-0804d000 rw-p 00003000 16:05 304622 /bin/cat > > 0804d000-0806e000 rw-p 0804d000 00:00 0 [heap] > > b7d00000-b7d21000 rw-p b7d00000 00:00 0 > > b7d21000-b7e00000 ---p b7d21000 00:00 0 > > b7ea1000-b7eaa000 r-xp 00000000 16:05 502230 > /usr/lib/libgcc_s.so.1 > > b7eaa000-b7eab000 rw-p 00008000 16:05 502230 > /usr/lib/libgcc_s.so.1 > > b7eab000-b7ede000 r--p 00000000 16:05 498627 > > /usr/lib/locale/en_US/LC_CTYPE > > b7ede000-b7edf000 r--p 00000000 16:05 498634 > > /usr/lib/locale/en_US/LC_NUMERIC > > b7edf000-b7ee0000 r--p 00000000 16:05 498637 > > /usr/lib/locale/en_US/LC_TIME > > b7ee0000-b7ee5000 r--p 00000000 16:05 498626 > > /usr/lib/locale/en_US/LC_COLLATE > > b7ee5000-b7ee6000 r--p 00000000 16:05 498632 > > /usr/lib/locale/en_US/LC_MONETARY > > b7ee6000-b7ee7000 r--p 00000000 16:05 498631 > > /usr/lib/locale/en_US/LC_MESSAGES/SYS_LC_MESSAGES > > b7ee7000-b7ee8000 r--p 00000000 16:05 498635 > > /usr/lib/locale/en_US/LC_PAPER > > b7ee8000-b7ee9000 r--p 00000000 16:05 498633 > > /usr/lib/locale/en_US/LC_NAME > > b7ee9000-b7eea000 r--p 00000000 16:05 498625 > > /usr/lib/locale/en_US/LC_ADDRESS > > b7eea000-b7eeb000 r--p 00000000 16:05 498636 > > /usr/lib/locale/en_US/LC_TELEPHONE > > b7eeb000-b7eec000 r--p 00000000 16:05 498629 > > /usr/lib/locale/en_US/LC_MEASUREMENT > > b7eec000-b7eed000 r--p 00000000 16:05 498628 > > /usr/lib/locale/en_US/LC_IDENTIFICATION > > b7eed000-b7eee000 rw-p b7eed000 00:00 0 > > b7eee000-b7fe3000 r-xp 00000000 16:05 16065 /lib/libc-2.6.1.so > > b7fe3000-b7fe4000 r--p 000f5000 16:05 16065 /lib/libc-2.6.1.so > > b7fe4000-b7fe6000 rw-p 000f6000 16:05 16065 /lib/libc-2.6.1.so > > b7fe6000-b7fea000 rw-p b7fe6000 00:00 0 > > b7fea000-b7fff000 r-xp 00000000 16:05 16055 /lib/ld-2.6.1.so > > b7fff000-b8001000 rw-p 00014000 16:05 16055 /lib/ld-2.6.1.so > > bf808000-bf81e000 rw-p bf808000 00:00 0 [stack] > > ffffe000-fffff000 r-xp 00000000 00:00 0 [vdso] > > Aborted > > > > > > I also got problems to use webcam with skype etc. > > Can you help find the origin of the bug ? > > > > Thanks very much. > > > > Cheers, linuxcbon > > It seems that the userspace app is trying to free a memory block twice. > Only > the author of the application can help to fix this. > > This may eventually be caused by some driver bad behavior or OOPS. Do > you have > any oops message, if you run "dmesg" ? > > About skype, their V4L support is still broken, at least on the versions > I > tested here. I have several webcams here. On my tests, it worked only > with one > specific model. I suspect that they support only a very few subset of > the > supported video formats. > > Cheers, > Mauro I forgot to cc the linux mailing list, so here it is again. hi Mauro, thanks for your answer ! I already contacted the authors (Mark,Wallac,Olawlor), but no feedback yet. I got no oops message from kernel. Can you help me and show me how to debug it or give some ideas ? Cheers, linuxcbon _____________________________________________________________________________ Envoyez avec Yahoo! Mail. Une boite mail plus intelligente http://mail.yahoo.fr