Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755631AbXIFI2t (ORCPT ); Thu, 6 Sep 2007 04:28:49 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753764AbXIFI2i (ORCPT ); Thu, 6 Sep 2007 04:28:38 -0400 Received: from pentafluge.infradead.org ([213.146.154.40]:52325 "EHLO pentafluge.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752932AbXIFI2h (ORCPT ); Thu, 6 Sep 2007 04:28:37 -0400 Date: Thu, 6 Sep 2007 14:11:46 +0530 (IST) From: Satyam Sharma X-X-Sender: satyam@enigma.security.iitk.ac.in To: Herbert Xu cc: Florian Lohoff , Linux Kernel Mailing List , Netdev , linux-wireless@vger.kernel.org, Michal Piotrowski , ipw3945-devel@lists.sourceforge.net, yi.zhu@intel.com Subject: Re: BUG: scheduling while atomic: ifconfig/0x00000002/4170 In-Reply-To: <20070906082301.GB21929@gondor.apana.org.au> Message-ID: References: <20070902184439.GA14306@paradigm.rfc822.org> <6bffcb0e0709021659o3856cd06gabc054c949a84397@mail.gmail.com> <20070906082301.GB21929@gondor.apana.org.au> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 818 Lines: 21 On Thu, 6 Sep 2007, Herbert Xu wrote: > On Thu, Sep 06, 2007 at 10:32:33AM +0530, Satyam Sharma wrote: > > > > > > [ 382.529041] [] dev_close+0x24/0x67 > > > > [ 382.529052] [] ieee80211_master_stop+0x4a/0x6d [mac80211] > > This is where the bug is. You cannot call dev_close from an > atomic context as i33380211_master_stop does it within spin > locks. Doh, of course! I must be blind ... and wait_for_completion()'s might_sleep() clearly didn't trigger earlier because Florian must've had CONFIG_DEBUG_SPINLOCK_SLEEP off in his .config ... - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/