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=-15.3 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=ham 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 90E88C433ED for ; Thu, 22 Apr 2021 14:25:39 +0000 (UTC) Received: from desiato.infradead.org (desiato.infradead.org [90.155.92.199]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 2AB6A6144A for ; Thu, 22 Apr 2021 14:25:39 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2AB6A6144A Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=desiato.20200630; h=Sender:Content-Transfer-Encoding :Content-Type:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References:Message-ID: Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=S+l1IOCu/Lmt3+bI7BcH5RN+kViuKA28CAlGkgDabig=; b=h/mfyd7LcAr0gT31A+f3oMQ1U QhWDEy1WVt/mwe2VZs3viNJjI2ruOvWsbr04r5twLHfUV6jkWb9tm2E54BjDSJOkeshrbCFGIAML9 1DwxGkQZe+0lRDkkVIL3s1h56VapjG031NnBBzCO94KBBCIyjaaBr94PXje2DGbrvdch9qwWRSWd9 b21X8eTy/weYW11m6QdWsKpBKZQ+2zcCR6qSUf27P/y2kqO6eT7pvcq1zDgG8p+YQOt4A8q77Lqch dXs03Rae873evXQ98kNrjWAzMI6eb3MC7Xb+gyf48w2+9RPIB793CelF9gIO2hbubv+d2EEvU3nCK ytcfoEO8g==; Received: from localhost ([::1] helo=desiato.infradead.org) by desiato.infradead.org with esmtp (Exim 4.94 #2 (Red Hat Linux)) id 1lZaFO-00GteR-NU; Thu, 22 Apr 2021 14:24:02 +0000 Received: from bombadil.infradead.org ([2607:7c80:54:e::133]) by desiato.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1lZaFM-00Gte8-9z for linux-arm-kernel@desiato.infradead.org; Thu, 22 Apr 2021 14:24:00 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=VXcU4OTSIw0pFmmcwvbSzV9NB5BVL627+pmBTDUhYWQ=; b=fGXe1fQ1I4d2b+tfZP/A8arWQe mxI069KVLQoG9JLuEvQZ+Ij744GlDjtc/YwBCueA2k9paF2hSRcMjToX2hr9E44lTIL+kZCmF0hq5 v4oKWvlSIYc8RhE4ylsb82npvFKAJeEYg6SDYiZTCnBJ1GvfrpYYkya/VsSv7ss/iWh9DIFQOFqY5 +2mCqNed3i3EX/u5C4N47b3MYWt4/Ui6ZrjiKJUFy7MtrQRLbLLz1sg+U+h0oG9zWJj52mnh5u1yh puWzbcSXgxelVHY6wWv2XYsq+wbK8Wc1TiOpawuozEQBSKvvwCzFsayLLKOXv+4OKiRYOe0wspMDs dBzyL+Vg==; Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.94 #2 (Red Hat Linux)) id 1lZaFJ-00DkyS-Ln for linux-arm-kernel@lists.infradead.org; Thu, 22 Apr 2021 14:23:59 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 9694413A1; Thu, 22 Apr 2021 07:23:53 -0700 (PDT) Received: from lpieralisi (e121166-lin.cambridge.arm.com [10.1.196.255]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 2B1943F73B; Thu, 22 Apr 2021 07:23:52 -0700 (PDT) Date: Thu, 22 Apr 2021 15:23:42 +0100 From: Lorenzo Pieralisi To: Marc Zyngier Cc: Sudeep Holla , Hanjun Guo , dann frazier , 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: <20210422142334.GA24087@lpieralisi> References: <20210421164317.1718831-1-maz@kernel.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20210421164317.1718831-1-maz@kernel.org> User-Agent: Mutt/1.9.4 (2018-02-28) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210422_072357_781473_DA64836E X-CRM114-Status: GOOD ( 16.33 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.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(-) Patch(2) needs an ACK from Rafael - usually these patches go via the ARM64 tree but I don't think it is compulsory for this series. Thank you ! Reviewed-by: Lorenzo Pieralisi _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel