From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from paleale.coelho.fi ([176.9.41.70]:32895 "EHLO farmhouse.coelho.fi" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S935882AbdCJMC2 (ORCPT ); Fri, 10 Mar 2017 07:02:28 -0500 Message-ID: <1489147283.22435.14.camel@coelho.fi> (sfid-20170310_130326_451362_D4A039B0) From: Luca Coelho To: Jens Axboe Cc: sara.sharon@intel.com, liad.kaufman@intel.com, linux-wireless@vger.kernel.org, "Coelho, Luciano" Date: Fri, 10 Mar 2017 14:01:23 +0200 In-Reply-To: References: <05fff778-8703-f429-f555-aa533c2df25f@kernel.dk> Content-Type: text/plain; charset="UTF-8" Mime-Version: 1.0 Subject: Re: WARNING: CPU: 1 PID: 23668 at drivers/net/wireless/intel/iwlwifi/mvm/sta.c:1539 iwl_mvm_rm_sta+0x3ce/0x450 Sender: linux-wireless-owner@vger.kernel.org List-ID: Hi Jens, On Thu, 2017-03-09 at 21:41 -0700, Jens Axboe wrote: > On 03/01/2017 09:10 PM, Jens Axboe wrote: > > On 03/01/2017 08:33 PM, Luca Coelho wrote: > > > Hi Jens, > > > > > > On Mar 1, 2017 20:25, Jens Axboe wrote: > > > > > > Not that folks have been jumping all over this, but in case someone is > > > curious, it triggered twice here today. For those two times, the value > > > of mvm->pending_frames[sta_id] was 80 and 39, respectively. > > > > > > Sorry for the delay, I'm on vacation now with limited internet access. > > > But we'll take a look into this early next week at the latest. > > > > > > Thanks a lot for the detailed report! > > > > No worries, thanks for responding. I just wanted to ensure this wasn't > > dropped on the floor. > > > > BTW, a few more values of ->pending_frames[sta_id]: > > > > $ dmesg | grep "ret=" > > [ 2334.308254] ret=39 > > [ 7915.311828] ret=80 > > [31602.317204] ret=41 > > [32139.510993] ret=54 > > [33292.917759] ret=96 > > > > it seems to often happen around resume. > > This is still happening all the time in current -git. Could you collect traces with trace-cmd, as explained in our wiki[1]? This will probably help point out the problem. I know it's a bit difficult because it appears to happen randomly for you, but it's worth trying. -- Cheers, Luca.