From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.8 required=3.0 tests=BAYES_00,DATE_IN_FUTURE_06_12, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 78CC2C433B4 for ; Tue, 18 May 2021 09:59:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5B7D3610E9 for ; Tue, 18 May 2021 09:59:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1348222AbhERKAS (ORCPT ); Tue, 18 May 2021 06:00:18 -0400 Received: from new2-smtp.messagingengine.com ([66.111.4.224]:50685 "EHLO new2-smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S243704AbhERKAR (ORCPT ); Tue, 18 May 2021 06:00:17 -0400 Received: from compute7.internal (compute7.nyi.internal [10.202.2.47]) by mailnew.nyi.internal (Postfix) with ESMTP id B19E258068D; Tue, 18 May 2021 05:58:59 -0400 (EDT) Received: from mailfrontend1 ([10.202.2.162]) by compute7.internal (MEProxy); Tue, 18 May 2021 05:58:59 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nakato.io; h= from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding:content-type; s=fm1; bh= YjRFDfHDvjD/gWHqEwwW0JoTsp5k4MuBowDOGNA4CzI=; b=svJNOGdLhk6DW5Is X0/hi6ZFdKHNrcqEnUxnBDOS+fnwmDUyx9HRTohNpd7R2HNuenpEiln+E+5vB32C CrOEZjW0P5OALZeTCktgFWIkpfe0pOJBW1HfX3Gs8VLtWfpBHGskzhDFoWMMLXNx g9JPVg++WIUULLYkxXkcUlvvxpz3mjya0ebRtTcUocaiC9prja+wYt4WmFoEHBhr i2jC4WwSs45s6AVFvpkImAlSISeNfMCtuDxPKz6p/b4vvbm0n8wRdmwY+xppQZwk iHg8YAFSYzny86YwmlmIWIDLg2bVJOt8uq5p2rU7ZLuSO3yjXy8Y3jK+j3ryAXQr pgc2iQ== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:content-type :date:from:in-reply-to:message-id:mime-version:references :subject:to:x-me-proxy:x-me-proxy:x-me-sender:x-me-sender :x-sasl-enc; s=fm2; bh=YjRFDfHDvjD/gWHqEwwW0JoTsp5k4MuBowDOGNA4C zI=; b=Nrsrirrqd+SDAUJDzrgzqed0W58P4Z3RRxJsP00RS4u7dyPa6aBEmEARL lObJJSiyXWIfQH09tcIo1TTEzydnZqzWmkeFYgZEtlx6Nw3all6dukYlUHWGXQ8N UTaJA3MZy/8bSNZxIVRrV8tDgs07jX69my+f8uvQuqvLnUdrfZH0NyPvwqjiJfwY joLnAwRsfF0+XSRzsmcIniBIvszMH++hauI11XwkD9qO759J6xPuaAEt4hh/HpAi vhwdz3LsxDmgJTqY4QwaG4ayZqSR+ZMTWTbtKDVZL4FfPW4z40aQmPL5Zj6iFmDK WsIsDsqb1wQv2N3tuXbts3ayn9tZg== X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgeduledrvdeijedgvdduucetufdoteggodetrfdotf fvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfqfgfvpdfurfetoffkrfgpnffqhgen uceurghilhhouhhtmecufedttdenucesvcftvggtihhpihgvnhhtshculddquddttddmne cujfgurhephffvufffkfgjfhgggfgtsehtufertddttddvnecuhfhrohhmpefurggthhhi ucfmihhnghcuoehnrghkrghtohesnhgrkhgrthhordhioheqnecuggftrfgrthhtvghrnh epgeefkefgheevtddthfeihfevfffhhfejudelheelgfdvteekuefgkeffudeiudffnecu ffhomhgrihhnpehgihhthhhusgdrtghomhenucfkphepvddvtddrvdegtddrkedtrdeitd enucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepmhgrihhlfhhrohhmpehnrghk rghtohesnhgrkhgrthhordhioh X-ME-Proxy: Received: from yuki.localnet (unknown [220.240.80.60]) by mail.messagingengine.com (Postfix) with ESMTPA; Tue, 18 May 2021 05:58:53 -0400 (EDT) From: Sachi King To: Maximilian Luz , Thomas Gleixner Cc: "H. Peter Anvin" , Ingo Molnar , Borislav Petkov , David Laight , "x86@kernel.org" , "linux-kernel@vger.kernel.org" , stable , Andy Shevchenko , Sasha Levin , Tom Lendacky Subject: Re: [PATCH] x86/i8259: Work around buggy legacy PIC Date: Wed, 19 May 2021 05:58:53 +1000 Message-ID: <1952705.8WFvOeMrJb@yuki> In-Reply-To: <87lf8ddjqx.ffs@nanos.tec.linutronix.de> References: <87a6otfblh.ffs@nanos.tec.linutronix.de> <87lf8ddjqx.ffs@nanos.tec.linutronix.de> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tuesday, May 18, 2021 9:27:02 AM AEST Thomas Gleixner wrote: > On Mon, May 17 2021 at 21:25, Maximilian Luz wrote: > > On 5/17/21 8:40 PM, Thomas Gleixner wrote: > >> Can you please add "apic=verbose" to the kernel command line and provide > >> full dmesg output for a kernel w/o your patch and one with your patch > >> applied? I've linked to a dmesg with "apic=verbose" below with the irq 7 override hack applied. Would you still like a copy without either of these patches applied? What's the convention for including a dmesg on the mailing list? I've included the copy via gist as pasting it into email seems incorrect, but that's also probably not the correct convention. > Sachi, can you please try the hack below to confirm the above? > > It's not meant to be a solution, but it's the most trivial way to > validate this. I've applied that patch and the GPIO driver loads and functions. The dmesg with the patch and "apic=verbose" I've placed at: https://gist.github.com/nakato/08c6962a540d91b6f9597303d54bffe5 Thanks, Sachi