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 8D6CBC76196 for ; Mon, 10 Apr 2023 12:01:56 +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:MIME-Version:Message-Id:Date:Subject:Cc :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=MVeY6yNXDgOUdIcP/+/au/5QfbenxKPokgz7jaJsvrk=; b=rLHL1d+udaa8TW trlB3MO78U9q0IqgaCXhqYhWnAdpTPUp8zEB2tU9zJ3R1MzEGdrq7H3uDQi0w8WtFmfplLddOpWG+ qjFiuPfPec3VI0hHAbji/JvZx3DHGXlqYKF7dK9Rv2WfJOsd6HIM0Y2Uz6G501klJmCZ7a8Vz08x2 w/1ORDCJQqYs6eoVunsmqzT3Re6GKnGqugX2Pq6GogbYtYlMrrp7I/fNp0n73t7sHBm/JN3NLsXiY PpJJAdh5q9exc7dTNblo1lq0KzqjrqRh00rmBmVUF1u9c10e/pYawydojn23adOmv931PwDhLRfbW X2XbsbSpYkEmorGUkGyw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1plqCF-00FBp2-1E; Mon, 10 Apr 2023 12:00:31 +0000 Received: from mail-oa1-f49.google.com ([209.85.160.49]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1plqCC-00FBnr-0Y; Mon, 10 Apr 2023 12:00:29 +0000 Received: by mail-oa1-f49.google.com with SMTP id 586e51a60fabf-18447b9a633so2947203fac.7; Mon, 10 Apr 2023 05:00:26 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1681128025; x=1683720025; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=MwzRQ43MPzZ+0En/PxCReyprlGKQZaWmp43PqnWxhn8=; b=0wBr2n19ad/sPBcMhhoVJts7UqNv+QhHjEBv3GfMcXQMY1lHDP/gFS99UoFtxDXyaq fUBVP4cCXvI2IoQAZnoSS1pMbmmDS3lgfEsmAKfW7np7fppfah5PTF9WZRG6X+hCc9aT tGuwlJwPEzCgbkWbhShTF+SbiKfEe7WXKAzNNHyqpg3FcxqoDjqe/F2NE9mpHg9HTckS bCkKJQuDifQu25XkDAoPYYcWr6/lxwdr9cvDBo+kf8Bsu1k1Jm3LlRC2Nlb6OEEB3KrQ e1Q5+OiKI+8jW2fs5bu+HNh3wa0HF2222HWRQhnTn8B1yy1NDNr1GuodSA+g3LuKYaOU g5fA== X-Gm-Message-State: AAQBX9eITgPPSTPKvXQ2rBr0/jqu7bg8XS96pw9O6Ai5zQYB4fB7jezp gDTtjB38duvaOoo5oHzaijo= X-Google-Smtp-Source: AKy350bn7Zy6Zd8wgM/7uCU7v1NyBl3VX26fotCHAfNXRGwWijIajnJqHa+1xWIXpql08YO37l89iQ== X-Received: by 2002:a05:6870:ac29:b0:184:222:6655 with SMTP id kw41-20020a056870ac2900b0018402226655mr4551329oab.4.1681128024258; Mon, 10 Apr 2023 05:00:24 -0700 (PDT) Received: from archfamilia.lan ([181.219.149.7]) by smtp.gmail.com with ESMTPSA id j4-20020a9d7384000000b0069f9203967bsm4141884otk.76.2023.04.10.05.00.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 10 Apr 2023 05:00:23 -0700 (PDT) From: Lucas Tanure To: Rob Herring , Frank Rowand , Mike Rapoport , Andrew Morton Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, jbrunet@baylibre.com, linux-amlogic@lists.infradead.org, linux-arm-kernel@lists.infradead.org, martin.blumenstingl@googlemail.com, narmstrong@baylibre.com, stefan@agner.ch, Lucas Tanure Subject: [PATCH v2 0/1] Fix Random Kernel panic from when fail to reserve memory Date: Mon, 10 Apr 2023 08:00:16 -0400 Message-Id: <20230410120017.41664-1-tanure@linux.com> X-Mailer: git-send-email 2.40.0 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230410_050028_207575_D983827E X-CRM114-Status: GOOD ( 11.90 ) 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 I am trying to fix an issue where the kernel panics randomly on my Vim3 board. The problem happens when the ARM Trusted Firmware memory is not removed from the available ram. This happens because my u-boot provides /memreserve/, but it doesn't flag it as nomap. And the kernel scan of /reserved-memory node can't map as nomap as the region is already reserved. The idea now is to scan /memreserve/ after /reserved-memory node, and /memreserve/ will skip regions already reserved by /reserved-memory node. V1 Patch series: https://lore.kernel.org/all/20230406151429.524591-1-tanure@linux.com/ Previous Threads: #regzbot link: https://lore.kernel.org/linux-arm-kernel/40ca11f84b7cdbfb9ad2ddd480cb204a@agner.ch/#regzbot #regzbot link: https://lore.kernel.org/all/CAJX_Q+1Tjc+-TjZ6JW9X0NxEdFe=82a9626yL63j7uVD4LpxEA@mail.gmail.com/ Change from V1: - Instead of allowing to mark nomap a region already reserved, give precedence to /reserved-memory node scan. Lucas Tanure (1): of: fdt: Scan /memreserve/ last drivers/of/fdt.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) -- 2.40.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel