From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from he.sipsolutions.net ([78.46.109.217]:38308 "EHLO sipsolutions.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754524Ab1BOLuH (ORCPT ); Tue, 15 Feb 2011 06:50:07 -0500 Subject: Re: [PATCH v2] iwlwifi: fix dma mappings and skbs leak From: Johannes Berg To: Stanislaw Gruszka Cc: wwguy , Intel Linux Wireless , "linux-wireless@vger.kernel.org" In-Reply-To: <20110215113444.GC2162@redhat.com> References: <1297693947-15310-1-git-send-email-sgruszka@redhat.com> <1297698696.4723.16.camel@wwguy-ubuntu> <20110215113444.GC2162@redhat.com> Content-Type: text/plain; charset="UTF-8" Date: Tue, 15 Feb 2011 12:50:02 +0100 Message-ID: <1297770602.3935.3.camel@jlt3.sipsolutions.net> Mime-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org List-ID: On Tue, 2011-02-15 at 12:34 +0100, Stanislaw Gruszka wrote: > Today I tried to reproduce problem a few times with > patch applied and does not see dma warning. Also > iptables modules still unload fine. > > However during testing, I triggered different warning: > > WARNING: at lib/debugobjects.c:259 debug_print_object+0x5c/0x70() > Hardware name: HP xw8600 Workstation > ODEBUG: free active (active state 0) object type: timer_list > Pid: 9139, comm: rmmod Not tainted 2.6.38-rc4-wl+ #21 > Call Trace: > [] ? warn_slowpath_common+0x7f/0xc0 > [] ? warn_slowpath_fmt+0x46/0x50 > [] ? debug_print_object+0x5c/0x70 > [] ? debug_check_no_obj_freed+0x125/0x210 > [] ? debug_check_no_locks_freed+0xf7/0x170 > [] ? kfree+0xc2/0x2f0 > [] ? ieee80211_unregister_hw+0x58/0x120 [mac80211] > It looks more like mac80211 issue for me. Agree, but I wish the timer objects had a name so we'd know what it was ... hmm, how can we figure out which timer this is? johannes