Return-path: Received: from smtp.codeaurora.org ([198.145.29.96]:52872 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932717AbdJRE7U (ORCPT ); Wed, 18 Oct 2017 00:59:20 -0400 From: Kalle Valo To: Luca Coelho Cc: Marc MERLIN , linux-wireless@vger.kernel.org, linuxwifi@intel.com Subject: Re: After upgrading to 4.11.1, wifi driver refuses to load after being unloaded once. References: <20170526024826.3qjx7pe3kz44klk3@merlins.org> <1496396575.9478.54.camel@coelho.fi> <20170603165950.GC29546@merlins.org> <20170816233844.qtigfurckdr44awa@merlins.org> <20171017094440.25tpkoeyfm6q2lqw@merlins.org> <1508249157.5497.103.camel@coelho.fi> <20171017212319.eranorcigrmgcpyo@merlins.org> <1508276099.5497.122.camel@coelho.fi> Date: Wed, 18 Oct 2017 07:59:16 +0300 In-Reply-To: <1508276099.5497.122.camel@coelho.fi> (Luca Coelho's message of "Wed, 18 Oct 2017 00:34:59 +0300") Message-ID: <87infduk4b.fsf@purkki.adurom.net> (sfid-20171018_065927_155218_C94A353F) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-wireless-owner@vger.kernel.org List-ID: Luca Coelho writes: > On Tue, 2017-10-17 at 14:23 -0700, Marc MERLIN wrote: >> On Tue, Oct 17, 2017 at 05:05:57PM +0300, Luca Coelho wrote: >> > Hi, >> > >> > On Tue, 2017-10-17 at 02:44 -0700, Marc MERLIN wrote: >> > > Was broken in 4.11, still broken in 4.12. This is crippling, I'm >> > > not >> > > running linux so that I have to reboot it to reload an intel >> > > wireless >> > > driver :-/ >> > >> > Can you report a bug in https://bugzilla.kernel.org so it's easier >> > to >> > track this? >> > >> > The problem seems to be that the rootport is not leaving D3 for >> > some >> > reason when the driver is loaded again. Do you have >> > CONFIG_IWLWIFI_PCIE_RTPM enabled in your .config? (you shouldn't) >> >> >> I don't know how or why, but I seem to: >> saruman:~# grep IWLWIFI /boot/config-4.12.10-amd64-preempt-sysrq- >> 20170406 >> CONFIG_IWLWIFI=m >> CONFIG_IWLWIFI_LEDS=y >> CONFIG_IWLWIFI_OPMODE_MODULAR=y >> # CONFIG_IWLWIFI_BCAST_FILTERING is not set >> CONFIG_IWLWIFI_PCIE_RTPM=y >> CONFIG_IWLWIFI_DEBUG=y >> CONFIG_IWLWIFI_DEVICE_TRACING=y >> >> I'll remove that, thanks. > > Cool, I think that might help. If it doesn't, please report a bug in > buzilla. ;) But a Kconfig option should never break functionality, so IMHO this still sounds like a bug in iwlwifi. -- Kalle Valo