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=-13.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 2646CC43460 for ; Wed, 21 Apr 2021 18:09:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DB2B76142F for ; Wed, 21 Apr 2021 18:09:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242460AbhDUSKY (ORCPT ); Wed, 21 Apr 2021 14:10:24 -0400 Received: from youngberry.canonical.com ([91.189.89.112]:34528 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240952AbhDUSKW (ORCPT ); Wed, 21 Apr 2021 14:10:22 -0400 Received: from mail-il1-f197.google.com ([209.85.166.197]) by youngberry.canonical.com with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.86_2) (envelope-from ) id 1lZHIK-0000dG-FZ for linux-kernel@vger.kernel.org; Wed, 21 Apr 2021 18:09:48 +0000 Received: by mail-il1-f197.google.com with SMTP id v3-20020a056e0213c3b029016165a33c15so16566699ilj.6 for ; Wed, 21 Apr 2021 11:09:48 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=hWjwHxIOFRhofmysaApLRpmaeSuY0CQj1n7uMTgnl5Y=; b=cJEK5bneeD1I8zFU8h9t5UYDUjI4DxHmInVRL7es+OPtX/afqFqbsfUPAQwuG6cJsO NgC3oVB4aIhk97Or9VaqZ9KT2uL4byB5MiMBA09EWqoOjrPYkOPXfnHR2cObSG/55WZ7 tZs99SMjtfNmryIra6tJwBD/VD1EpCHx9zsT0RNSo+3OTWafunENcel0EWRV/lUYt5iC oCcHOfJuiEKB+29UnZI/Pe5rNLACQbiBjnv//31u3maBEN5BIR3NXFI9QRgCPFUhPPTN W0jQ0beP9JFJWa4cdvAzNGgFSIpqpd974HVedf2cNMl2OfzYjw7zR599WqE8O5s4+Vb6 qotQ== X-Gm-Message-State: AOAM530u93c+SCBaIMNM4fjrmBr4lkUMLN/8cgnW9QYyEIxDgIhCJR/U Y50TjRC5AIFfN/6hqtC1MA2VMzEPo4aeJ7m/bVYpZk126Pi+wf+OujxiAmS9J4NE+pUe9LMyqP9 c+oxqcxGhHRBCJP42vN6uQNlXlhVk4GvlUAdUAzDu5Q== X-Received: by 2002:a05:6e02:2197:: with SMTP id j23mr27636500ila.269.1619028587539; Wed, 21 Apr 2021 11:09:47 -0700 (PDT) X-Google-Smtp-Source: ABdhPJwM+ERtaD+oau8p0ZRaMWgHV0MRuEys8xEYJcvbu541bBxY8/j4v6fYjRX2Gxi/8+mUU2hyQQ== X-Received: by 2002:a05:6e02:2197:: with SMTP id j23mr27636486ila.269.1619028587247; Wed, 21 Apr 2021 11:09:47 -0700 (PDT) Received: from xps13.dannf (c-71-56-235-36.hsd1.co.comcast.net. [71.56.235.36]) by smtp.gmail.com with ESMTPSA id x18sm81998ior.10.2021.04.21.11.09.45 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 21 Apr 2021 11:09:46 -0700 (PDT) Date: Wed, 21 Apr 2021 12:09:44 -0600 From: dann frazier To: Marc Zyngier Cc: Lorenzo Pieralisi , Sudeep Holla , Hanjun Guo , Fu Wei , Len Brown , "Rafael J. Wysocki" , linux-acpi@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, kernel-team@android.com Subject: Re: [PATCH 0/2] arm64: ACPI GTDT watchdog fixes Message-ID: References: <20210421164317.1718831-1-maz@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210421164317.1718831-1-maz@kernel.org> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Apr 21, 2021 at 05:43:15PM +0100, Marc Zyngier wrote: > Dann recently reported that his ThunderX machine failed to boot since > 64b499d8df40 ("irqchip/gic-v3: Configure SGIs as standard > interrupts"), with a not so pretty crash while trying to send an IPI. > > It turned out to be caused by a mix of broken firmware and a buggy > GTDT watchdog driver. Both have forever been buggy, but the above > commit revealed that the error handling path of the driver was > probably the worse part of it all. > > Anyway, this short series has two goals: > - handle broken firmware in a less broken way > - make sure that the route cause of the problem can be identified > quickly > > Thanks, > > M. > > Marc Zyngier (2): > ACPI: GTDT: Don't corrupt interrupt mappings on watchdow probe failure > ACPI: irq: Prevent unregistering of GIC SGIs > > drivers/acpi/arm64/gtdt.c | 10 ++++++---- > drivers/acpi/irq.c | 6 +++++- > 2 files changed, 11 insertions(+), 5 deletions(-) For the series: Tested-by: dann frazier