Return-path: Received: from mail-lb0-f171.google.com ([209.85.217.171]:34893 "EHLO mail-lb0-f171.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750959AbcBBFlP (ORCPT ); Tue, 2 Feb 2016 00:41:15 -0500 MIME-Version: 1.0 In-Reply-To: <20160202043448.GA9514@earth> References: <20160202043448.GA9514@earth> Date: Tue, 2 Feb 2016 16:41:13 +1100 Message-ID: (sfid-20160202_064133_444021_D143355B) Subject: Re: linux-4.5-rc1 TI pandboard-es wifi wlcore locks and reset From: Ross Green To: Sebastian Reichel Cc: linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org, linux-wireless@vger.kernel.org Content-Type: text/plain; charset=UTF-8 Sender: linux-wireless-owner@vger.kernel.org List-ID: I have not tried a bisect yet, but I can confirm 4.4 and 4.4.1 work. 4.5-rc1 and 4.5-rc2 don't work. It appears the tx to device times out and then just goes into reset of the device to try and recover. A tx to device seems not to work. although somehow firmware has been loaded to the device. So some types of tx might work. Strange! There were quite a few omap and omap4 plus patches that have come along recently. so the culprit is in there somewhere. These machines have been rock solid for quite some time. If I get time, this evening, I'll see if I can give a bisect a try. Regards, Ross Green On Tue, Feb 2, 2016 at 3:34 PM, Sebastian Reichel wrote: > Hi, > > On Mon, Feb 01, 2016 at 11:38:38PM +1100, Ross Green wrote: >> On Mon, Jan 25, 2016 at 11:47 PM, Ross Green wrote: >> > Just tried the new kernel release on faithful pandaboard es with the >> > new 4.5-rc1 release. >> > >> > There is a problem with the wifi modules once the modules are loaded. >> > Looks like the wifi firmware gets loaded put no response after that >> > causing recovery action. >> > >> > the kernel 4.4 works quite happily with this board. >> > >> > Here is a dmesg dump in the attachment. >> > >> > Anyone have any ideas here? >> >> Just updated to the latest linux-4.5-rc2 and same result as rc1. >> >> The wireless module loads firmware and then stalls causing a reset of >> the device and then continues to go through a stall and reset cycle. >> >> please find enclosed a copy of the dmesg output. >> >> Is there anyone else testing a pandaboard with linux-4.5-rc2? >> >> Just for completeness also tested the latest linux-4.4.1 kernel and >> found no problems with the wireless modules. > > I can see the same problem with Nokia N950 (which uses spi connected > wl1271). v4.4 + wl12xx spi DT patches from Uri Mashiach worked, v4.5 > + the same patches does not work. I currently suspect 133b7326e960 > or 3719c17e1816 to be the culprit. I have not yet verified it, though. > > Have you tried to bisect the problem? > > -- Sebastian