From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail.candelatech.com ([208.74.158.172]:58621 "EHLO ns3.lanforge.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755541Ab1GANAu (ORCPT ); Fri, 1 Jul 2011 09:00:50 -0400 Message-ID: <4E0DC4FC.2000309@candelatech.com> (sfid-20110701_150053_186426_871D9BC0) Date: Fri, 01 Jul 2011 06:00:44 -0700 From: Ben Greear MIME-Version: 1.0 To: Johannes Berg CC: "linux-wireless@vger.kernel.org" Subject: Re: Crash in mlme.c, wireless-testing 2.6.39-wl + hacks References: <4E0CE929.7040300@candelatech.com> (sfid-20110630_232253_480125_B86CAA5E) <1309469454.3873.0.camel@jlt3.sipsolutions.net> <4E0CECDD.7040409@candelatech.com> <1309507846.3888.1.camel@jlt3.sipsolutions.net> In-Reply-To: <1309507846.3888.1.camel@jlt3.sipsolutions.net> Content-Type: text/plain; charset=UTF-8; format=flowed Sender: linux-wireless-owner@vger.kernel.org List-ID: On 07/01/2011 01:10 AM, Johannes Berg wrote: > >> Very little significant changes in this area, but I've a non-related >> proprietary module loaded, and patches to various other parts of the >> networking code. >> >> The full tree is here if you want to take a look, or I can send >> you a full unified diff: >> >> http://dmz2.candelatech.com/git/gitweb.cgi?p=linux.wireless-testing-ct.ct/.git;a=summary > > Fair enough, I don't see anything there that would impact this bug. > >> Seems a tricky timing related bug, possibly we're only hitting it because >> we're testing on an older C3 processor system that is significantly slower >> than our normal test systems. > > Hm. That seems odd. I didn't see anything that lacked locking either. > > I think the detail that we need to investigate is what you said before: > >> configured for in-kernel authentication, >> re-configure them for supplicant, let them associate, delete one of >> them. > > but I don't see anything there either right now. Well, would you accept a patch that checked for null bssid, and did a WARN_ON and bailed out if found? Seems little harm, and we verified that the system otherwise remained stable with such a patch added... Thanks, Ben -- Ben Greear Candela Technologies Inc http://www.candelatech.com