From mboxrd@z Thu Jan 1 00:00:00 1970 From: "John Stoffel" Subject: Re: usb_mon oops Re: tcpdump crashes 2.6.29.1 (and 2.6.29-rc5) Date: Wed, 8 Apr 2009 09:20:54 -0400 Message-ID: <18908.42166.404232.721757@stoffel.org> References: <18906.49779.243047.207639@stoffel.org> <20090407120022.GA6519@ff.dom.local> <18907.28788.965069.573489@stoffel.org> <20090407130403.e0061a8d.zaitcev@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: "John Stoffel" , Jarek Poplawski , linux-kernel@vger.kernel.org, netdev@vger.kernel.org, linux-usb@vger.kernel.org To: Pete Zaitcev Return-path: Received: from Mycroft.westnet.com ([216.187.52.7]:63505 "EHLO Mycroft.westnet.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758915AbZDHNW3 (ORCPT ); Wed, 8 Apr 2009 09:22:29 -0400 In-Reply-To: <20090407130403.e0061a8d.zaitcev@redhat.com> Sender: netdev-owner@vger.kernel.org List-ID: Pete> On Tue, 7 Apr 2009 11:25:40 -0400, "John Stoffel" wrote: >> But I'm surprised that USB_MON would be the cause when it's a >> networking tool which is starting up? *shrug* Pete> The libpcap supports usbmon. Perhaps it scans something. Pete> The big problem with usbmon is, it has to trust what drivers Pete> stuff into URBs. Bet it's your uvcvideo. A rough driver, that. Well I think that usbmon is probably at fault here for trusting drivers too much and not doing any sanity checking. But I can try removing the uvcvideo driver and seeing if I can get the system to crash then. I was busy last night and didn't have a chance to even touch the system. Hopefully more time tonight, but I'm not sure. Thanks for the hints, I'll give them a whirl. John