From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753216AbbLZVoX (ORCPT ); Sat, 26 Dec 2015 16:44:23 -0500 Received: from smtp.domeneshop.no ([194.63.252.55]:58891 "EHLO smtp.domeneshop.no" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751159AbbLZVoW (ORCPT ); Sat, 26 Dec 2015 16:44:22 -0500 X-Greylist: delayed 360 seconds by postgrey-1.27 at vger.kernel.org; Sat, 26 Dec 2015 16:44:21 EST Subject: Re: [PATCH v2 0/8] Raspberry Pi 2 support. To: Eric Anholt , Alexander Aring , Phil References: <1450310115-22163-1-git-send-email-eric@anholt.net> <20151218100826.GB1145@omega> <20151220221158.GA6416@omega> <874mfbflj3.fsf@eliezer.anholt.net> <20151222142643.GB29335@omega> <87si2uux2s.fsf@eliezer.anholt.net> Cc: Mark Rutland , devicetree@vger.kernel.org, Florian Fainelli , Jason Cooper , Scott Branden , Ian Campbell , Marc Zyngier , Ray Jui , linux-kernel@vger.kernel.org, Rob Herring , bcm-kernel-feedback-list@broadcom.com, linux-rpi-kernel@lists.infradead.org, Kumar Gala , Thomas Gleixner , linux-arm-kernel@lists.infradead.org From: =?UTF-8?Q?Noralf_Tr=c3=b8nnes?= Message-ID: <567F08BD.50204@tronnes.org> Date: Sat, 26 Dec 2015 22:38:05 +0100 User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:38.0) Gecko/20100101 Thunderbird/38.5.0 MIME-Version: 1.0 In-Reply-To: <87si2uux2s.fsf@eliezer.anholt.net> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Den 22.12.2015 20:01, skrev Eric Anholt: > >> After finally booting the RPi2 I get several messages of: >> >> unexpected IRQ trap at vector 00 >> >> while typing _one_ character over uart. > We were doing some debugging of that recently. It seems that every once > in a while we get woken up but nothing shows up in the top-level status > register. We need to just make the irqchip ignore instead of trying to > look up a handler in that case, but I haven't prioritized it because it > makes me worry that I'm just papering over a problem in our IRQ masking > or something. > > I haven't seen any problems other than the printk, though. Downstream has this patch[1]: irq-bcm2836: Prevent spurious interrupts, and trap them early It has been used in the nightly build of OpenELEC[2] for 5 days now without any complaints (used with the downstream ARCH_BCM2709). [1] https://github.com/raspberrypi/linux/commit/688a5f2ada4fbd16547b574a17e6d359ab2364d0 [2] http://forum.kodi.tv/showthread.php?tid=250817&pid=2192054#pid2192054 From mboxrd@z Thu Jan 1 00:00:00 1970 From: noralf@tronnes.org (=?UTF-8?Q?Noralf_Tr=c3=b8nnes?=) Date: Sat, 26 Dec 2015 22:38:05 +0100 Subject: [PATCH v2 0/8] Raspberry Pi 2 support. In-Reply-To: <87si2uux2s.fsf@eliezer.anholt.net> References: <1450310115-22163-1-git-send-email-eric@anholt.net> <20151218100826.GB1145@omega> <20151220221158.GA6416@omega> <874mfbflj3.fsf@eliezer.anholt.net> <20151222142643.GB29335@omega> <87si2uux2s.fsf@eliezer.anholt.net> Message-ID: <567F08BD.50204@tronnes.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Den 22.12.2015 20:01, skrev Eric Anholt: > >> After finally booting the RPi2 I get several messages of: >> >> unexpected IRQ trap at vector 00 >> >> while typing _one_ character over uart. > We were doing some debugging of that recently. It seems that every once > in a while we get woken up but nothing shows up in the top-level status > register. We need to just make the irqchip ignore instead of trying to > look up a handler in that case, but I haven't prioritized it because it > makes me worry that I'm just papering over a problem in our IRQ masking > or something. > > I haven't seen any problems other than the printk, though. Downstream has this patch[1]: irq-bcm2836: Prevent spurious interrupts, and trap them early It has been used in the nightly build of OpenELEC[2] for 5 days now without any complaints (used with the downstream ARCH_BCM2709). [1] https://github.com/raspberrypi/linux/commit/688a5f2ada4fbd16547b574a17e6d359ab2364d0 [2] http://forum.kodi.tv/showthread.php?tid=250817&pid=2192054#pid2192054