Return-path: Received: from mail-qt0-f173.google.com ([209.85.216.173]:33975 "EHLO mail-qt0-f173.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752690AbdLFHNi (ORCPT ); Wed, 6 Dec 2017 02:13:38 -0500 MIME-Version: 1.0 In-Reply-To: <1512490314.4977.143.camel@synopsys.com> References: <1512490314.4977.143.camel@synopsys.com> From: Amitkumar Karwar Date: Wed, 6 Dec 2017 12:43:36 +0530 Message-ID: (sfid-20171206_081342_868259_542654D5) Subject: Re: rsi_91x: Failed to read status register on failed authentication To: Alexey Brodkin Cc: "amit.karwar@redpinesignals.com" , "linux-wireless@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "linux-snps-arc@lists.infradead.org" Content-Type: text/plain; charset="UTF-8" Sender: linux-wireless-owner@vger.kernel.org List-ID: On Tue, Dec 5, 2017 at 9:41 PM, Alexey Brodkin wrote: > Hi Amit, > > I'm seeing quite a strange behavior of RedPine module. > It connects perfectly fine to one of access points but fails > to connect to another. > > Moreover after that failure RSI driver starts to flood me with > messages saying: > --------------------->8-------------------- > rsi_91x: rsi_sdio_check_buffer_status: Failed to read status register > --------------------->8-------------------- > > Below you may find details of my 2 experiments. > Note I use vanilla Linux kernel v4.14.4 > > Any ideas what could be wrong? > Could you enable driver debug zones and share dmesg log for analysis? echo 0xffffffff > /sys/kernel/debug/phy0/debug_zone Regards, Amitkumar