From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from purkki.adurom.net ([80.68.90.206]:48003 "EHLO purkki.adurom.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758579Ab0HORjE (ORCPT ); Sun, 15 Aug 2010 13:39:04 -0400 To: Johannes Berg Cc: Christian Lamparter , "Luis R. Rodriguez" , "John W. Linville" , linux-wireless Subject: Re: Odd BUG on wireless-testing master-2010-08-05 References: <20100806135057.GA2753@tuxdriver.com> <201008072104.43784.chunkeey@googlemail.com> <874of5d6k7.fsf@purkki.adurom.net> <1281256404.3697.2.camel@jlt3.sipsolutions.net> From: Kalle Valo Date: Sun, 15 Aug 2010 20:39:01 +0300 In-Reply-To: <1281256404.3697.2.camel@jlt3.sipsolutions.net> (Johannes Berg's message of "Sun\, 08 Aug 2010 10\:33\:24 +0200") Message-ID: <877hjrbwsq.fsf@purkki.adurom.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-wireless-owner@vger.kernel.org List-ID: Johannes Berg writes: >> I have similar warnings with ath9k, using commit >> 0ca923bdb96b1fee4d1db90b3094a0cf36120056: >> >> Aug 6 21:02:08 tukki kernel: [ 71.172707] ============================================================================= >> Aug 6 21:02:08 tukki kernel: [ 71.172715] BUG kmalloc-4096: Object already free >> Aug 6 21:02:08 tukki kernel: [ 71.172718] ----------------------------------------------------------------------------- >> Aug 6 21:02:08 tukki kernel: [ 71.172720] >> Aug 6 21:02:08 tukki kernel: [ 71.172732] INFO: Allocated in wireless_send_event+0x1f2/0x410 age=0 cpu=1 pid=3056 > > I wonder if this is in any way related to > commit 1235f504aaba2ebeabc863fdb3ceac764a317d47 > Author: Eric Dumazet > Date: Mon Jul 26 13:09:16 2010 -0700 > > netlink: netlink_recvmsg() fix Thanks, that was a good tip. I run a revert of this commit for few days and didn't see any warnings. Yesterday I again dropped the revert and started to see warnings again. I can't be 100% certain (yet) that this commit is the culprit, but it really looks like it. -- Kalle Valo