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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 587C4C4321E for ; Mon, 5 Dec 2022 10:56:47 +0000 (UTC) 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: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=65rzlI9CW8KV+C4HUkWUzrAx/sfw7TxsigGsZTduK5U=; b=QqHhS3mgp9ZSBZ hTxZYDYO6g0s1ChH1lhwtRPQYIzxlRd3hNoFWqAwLL3emYv0TtOI+0dEVJKcYV2affh0KRGrx2kj/ +3c1Uw6ikgIPCKb3JAf3dPMjiL0+lpRPO6F9CT83e4NzgCwCITYRx45rlZTHGMgDEHqX8kNIjwPOo xkOdpY68JbCO5EECF74osoisjNyJ3+Py2UypeG+UqmH96W6BtzqexdFSdjl26Nxta8CmdaLMMjFX+ bP1JO9vqndpKRRGvSjTql3j3iwbWx/O3ylg61JEHVvJ6UIZypTafwJ8p1/bDvnijbK33fM+9siPqq yJWeE1dIK9aU04k7spag==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1p298Y-001JzP-GT; Mon, 05 Dec 2022 10:55:50 +0000 Received: from mail.8bytes.org ([2a01:238:42d9:3f00:e505:6202:4f0c:f051]) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1p298V-001Jxr-RM; Mon, 05 Dec 2022 10:55:49 +0000 Received: from 8bytes.org (p200300c27724780086ad4f9d2505dd0d.dip0.t-ipconnect.de [IPv6:2003:c2:7724:7800:86ad:4f9d:2505:dd0d]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-256) server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mail.8bytes.org (Postfix) with ESMTPSA id A5EE42202AB; Mon, 5 Dec 2022 11:55:46 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=8bytes.org; s=default; t=1670237746; bh=UVOyFFaGYlpHJfm3mAMdFZ8zDZRV5tP+GuufCO475L4=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=50ZzaDPqm6zSg1911499wI12ZJg8Zfh0ZeU4ptABj61knUN9uman1W/Zj3OEYkx5o DT9ag6YE8z9ZTFTyx8NXeKVyX07AjJ5Y6upV3L3aXZ/D460VDVWyQafxz15zOjjp4S FgdSVQjAe6xWxLCc2OH6AjuG6WHUyTjlxiuvxDq5rQ2/mXrNf4qAAR1Pe5N1Y/pvFQ Yhj/72n4bxUlGQer/1yKN42pLQMYn0kWFsXltRhMpwfVCMAT6640YBKA6YihbyoJeU NGKhXkJLpH1XQucxnBVkOjqWKoVoQneM7GOQ/2JkWO+TE92+yU4RW13aCKBdVkF2a2 Tb0yRdJ7AuqDA== Date: Mon, 5 Dec 2022 11:55:45 +0100 From: Joerg Roedel To: Ricardo Ribalda Cc: Matthias Brugger , Yong Wu , Will Deacon , Robin Murphy , linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, iommu@lists.linux.dev, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2] iommu/mediatek: Fix crash on isr after kexec() Message-ID: References: <20221125-mtk-iommu-v2-0-e168dff7d43e@chromium.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20221125-mtk-iommu-v2-0-e168dff7d43e@chromium.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20221205_025548_057445_C2EEF733 X-CRM114-Status: UNSURE ( 9.19 ) 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 Mon, Nov 28, 2022 at 11:16:48PM +0100, Ricardo Ribalda wrote: > If the system is rebooted via isr(), the IRQ handler might be triggerd > before the domain is initialized. Resulting on an invalid memory access > error. > > Fix: > [ 0.500930] Unable to handle kernel read from unreadable memory at virtual address 0000000000000070 > [ 0.501166] Call trace: > [ 0.501174] report_iommu_fault+0x28/0xfc > [ 0.501180] mtk_iommu_isr+0x10c/0x1c0 > > Signed-off-by: Ricardo Ribalda Applied with commit-message spelling fix. _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel