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, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,MAILING_LIST_MULTI, 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 D348EC432BE for ; Fri, 23 Jul 2021 11:07:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BBA7C60725 for ; Fri, 23 Jul 2021 11:07:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231933AbhGWK1M (ORCPT ); Fri, 23 Jul 2021 06:27:12 -0400 Received: from foss.arm.com ([217.140.110.172]:44520 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230135AbhGWK1L (ORCPT ); Fri, 23 Jul 2021 06:27:11 -0400 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 8765C106F; Fri, 23 Jul 2021 04:07:44 -0700 (PDT) Received: from e113632-lin (usa-sjc-imap-foss1.foss.arm.com [10.121.207.14]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 7D96A3F694; Fri, 23 Jul 2021 04:07:42 -0700 (PDT) From: Valentin Schneider To: Mark Brown Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rt-users@vger.kernel.org, x86@kernel.org, Catalin Marinas , Will Deacon , Thomas Gleixner , Steven Rostedt , Daniel Bristot de Oliveira , "Peter Zijlstra \(Intel\)" , Ingo Molnar , Borislav Petkov , "H. Peter Anvin" , Dave Martin , Ard Biesheuvel Subject: Re: [PATCH 3/3] arm64/fpsimd: Fix FPSIMD context handling vs PREEMPT_RT In-Reply-To: <20210722183210.GF5258@sirena.org.uk> References: <20210722175157.1367122-1-valentin.schneider@arm.com> <20210722175157.1367122-4-valentin.schneider@arm.com> <20210722183210.GF5258@sirena.org.uk> Date: Fri, 23 Jul 2021 12:07:35 +0100 Message-ID: <875yx1mgp4.mognet@arm.com> MIME-Version: 1.0 Content-Type: text/plain Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 22/07/21 19:32, Mark Brown wrote: > On Thu, Jul 22, 2021 at 06:51:57PM +0100, Valentin Schneider wrote: >> Running v5.13-rt1 on my arm64 Juno board triggers: > > Acked-by: Mark Brown > Thanks! >> [ 11.337654] WARNING: CPU: 4 PID: 1 at arch/arm64/kernel/fpsimd.c:296 task_fpsimd_load (arch/arm64/kernel/fpsimd.c:296 (discriminator 1)) >> [ 11.337692] Modules linked in: >> [ 11.337705] CPU: 4 PID: 1 Comm: init Not tainted 5.13.0-rt1 #52 >> [ 11.337719] Hardware name: ARM Juno development board (r0) (DT) >> [ 11.337727] pstate: 40000005 (nZcv daif -PAN -UAO -TCO BTYPE=--) >> [ 11.337740] pc : task_fpsimd_load (arch/arm64/kernel/fpsimd.c:296 (discriminator 1)) >> [ 11.337755] lr : task_fpsimd_load (arch/arm64/kernel/fpsimd.c:296 (discriminator 3)) >> [ 11.337769] sp : ffff800012f4bdd0 >> [ 11.337775] x29: ffff800012f4bdd0 x28: ffff000800160000 x27: 0000000000000000 >> [ 11.337797] x26: 0000000000000000 x25: 0000000000000000 x24: ffff0008001606f0 >> [ 11.337816] x23: ffff000800160000 x22: ffff000800160700 x21: ffff000800160000 > > For readability it's probably better to not include the entire register > contents here - the backtrace ends up about as large as the actual > changelog, a good chunk of which is just the register contents. Noted. 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=-10.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 1B2C9C4338F for ; Fri, 23 Jul 2021 11:09:47 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 D306A60EBC for ; Fri, 23 Jul 2021 11:09:46 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org D306A60EBC Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:References :In-Reply-To:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=Zk48Kqyd4W/Rp2CRJeWXgVl6s5fSo5Y726Bb9X9jkD4=; b=Ek/5E1HaXJtY+c 16x68R1YIgI+TWZM5C3r86763MXMAAsdSZvmVFL3qbdXs/mcXnaDVdZvF5aDBnCS9095XdD5VUpkQ XX1Ql/K3L+q91ysWgDUGojEpLj2pNMkX6noVtblv3q6mVfRKFFHXUZnh/WWl0Oj4/hr8Vozx+El65 YBAjf25affo9RgEjiaHo3/71RLXBGLGORAlbzLcVBVJAefcD7jTsVwT8qybT+WnBFKi47hXkULYYO U5bC5S6O97BvfsjC8vz6yQjJACgQeMB9Tjs2EjC98Zt1QwpOIW0e2E7COhursVMBoziXt7ipVLk/X wS/B6Xz+1BuMuxC5rB8Q==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1m6t20-004S2n-Km; Fri, 23 Jul 2021 11:07:52 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1m6t1v-004S0a-Iz for linux-arm-kernel@lists.infradead.org; Fri, 23 Jul 2021 11:07:49 +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 8765C106F; Fri, 23 Jul 2021 04:07:44 -0700 (PDT) Received: from e113632-lin (usa-sjc-imap-foss1.foss.arm.com [10.121.207.14]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 7D96A3F694; Fri, 23 Jul 2021 04:07:42 -0700 (PDT) From: Valentin Schneider To: Mark Brown Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rt-users@vger.kernel.org, x86@kernel.org, Catalin Marinas , Will Deacon , Thomas Gleixner , Steven Rostedt , Daniel Bristot de Oliveira , "Peter Zijlstra \(Intel\)" , Ingo Molnar , Borislav Petkov , "H. Peter Anvin" , Dave Martin , Ard Biesheuvel Subject: Re: [PATCH 3/3] arm64/fpsimd: Fix FPSIMD context handling vs PREEMPT_RT In-Reply-To: <20210722183210.GF5258@sirena.org.uk> References: <20210722175157.1367122-1-valentin.schneider@arm.com> <20210722175157.1367122-4-valentin.schneider@arm.com> <20210722183210.GF5258@sirena.org.uk> Date: Fri, 23 Jul 2021 12:07:35 +0100 Message-ID: <875yx1mgp4.mognet@arm.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210723_040747_735007_6DF93F79 X-CRM114-Status: UNSURE ( 9.34 ) X-CRM114-Notice: Please train this message. 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 22/07/21 19:32, Mark Brown wrote: > On Thu, Jul 22, 2021 at 06:51:57PM +0100, Valentin Schneider wrote: >> Running v5.13-rt1 on my arm64 Juno board triggers: > > Acked-by: Mark Brown > Thanks! >> [ 11.337654] WARNING: CPU: 4 PID: 1 at arch/arm64/kernel/fpsimd.c:296 task_fpsimd_load (arch/arm64/kernel/fpsimd.c:296 (discriminator 1)) >> [ 11.337692] Modules linked in: >> [ 11.337705] CPU: 4 PID: 1 Comm: init Not tainted 5.13.0-rt1 #52 >> [ 11.337719] Hardware name: ARM Juno development board (r0) (DT) >> [ 11.337727] pstate: 40000005 (nZcv daif -PAN -UAO -TCO BTYPE=--) >> [ 11.337740] pc : task_fpsimd_load (arch/arm64/kernel/fpsimd.c:296 (discriminator 1)) >> [ 11.337755] lr : task_fpsimd_load (arch/arm64/kernel/fpsimd.c:296 (discriminator 3)) >> [ 11.337769] sp : ffff800012f4bdd0 >> [ 11.337775] x29: ffff800012f4bdd0 x28: ffff000800160000 x27: 0000000000000000 >> [ 11.337797] x26: 0000000000000000 x25: 0000000000000000 x24: ffff0008001606f0 >> [ 11.337816] x23: ffff000800160000 x22: ffff000800160700 x21: ffff000800160000 > > For readability it's probably better to not include the entire register > contents here - the backtrace ends up about as large as the actual > changelog, a good chunk of which is just the register contents. Noted. _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel