From patchwork Thu Apr 7 11:50:23 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dimitri John Ledkov X-Patchwork-Id: 1614463 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: bilbo.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=canonical.com header.i=@canonical.com header.a=rsa-sha256 header.s=20210705 header.b=GR8x2LIq; dkim-atps=neutral Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lists.ubuntu.com (client-ip=91.189.94.19; helo=huckleberry.canonical.com; envelope-from=kernel-team-bounces@lists.ubuntu.com; receiver=) Received: from huckleberry.canonical.com (huckleberry.canonical.com [91.189.94.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by bilbo.ozlabs.org (Postfix) with ESMTPS id 4KZ07p3GJ4z9sGh for ; Thu, 7 Apr 2022 21:50:45 +1000 (AEST) Received: from localhost ([127.0.0.1] helo=huckleberry.canonical.com) by huckleberry.canonical.com with esmtp (Exim 4.86_2) (envelope-from ) id 1ncQel-0003PG-WD; Thu, 07 Apr 2022 11:50:31 +0000 Received: from smtp-relay-internal-0.internal ([10.131.114.225] helo=smtp-relay-internal-0.canonical.com) by huckleberry.canonical.com with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.86_2) (envelope-from ) id 1ncQel-0003P9-3S for kernel-team@lists.ubuntu.com; Thu, 07 Apr 2022 11:50:31 +0000 Received: from mail-wm1-f71.google.com (mail-wm1-f71.google.com [209.85.128.71]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by smtp-relay-internal-0.canonical.com (Postfix) with ESMTPS id E8D3E3F6FB for ; Thu, 7 Apr 2022 11:50:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=canonical.com; s=20210705; t=1649332230; bh=F0tqcGOUdjE50B9oiJvClDsRJXg+eCEK3Ft66qeQhvw=; h=From:To:Subject:Date:Message-Id:MIME-Version; b=GR8x2LIqDdR9B3JNl0++ChWfMHhUExacrdj10zAKvs1IXLAtuAleUk8dLXo6LY/lH kIfnyBwzzwINlBmr4wiugxy3HTjW8MlZR3eh/0ICA6rRmaKsWnh+TPkns8H4mIfjpU HC/Eh2LRxmR1GwedNqRy1sBej8i/eAvBPZ3YAi9EcOSHHJsbfL9NRyntDUgx1W49b0 IsQiDsKhkpA4Lqxsg/ylhger0Pf3xHjtvjKISyHhRo/h0gJlAqZqmvxp683o37EF51 ZaNWksxuHU/TBJGpg429w4hj8uu+sz+YdRJOin+v4MaNkuJUWiVSRgZvko+gXk6glM TxpfkreG4XU4w== Received: by mail-wm1-f71.google.com with SMTP id n21-20020a05600c4f9500b0038e3b0aa367so3083883wmq.1 for ; Thu, 07 Apr 2022 04:50:30 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:subject:date:message-id:mime-version :content-transfer-encoding; bh=F0tqcGOUdjE50B9oiJvClDsRJXg+eCEK3Ft66qeQhvw=; b=p5Us6qXwI+P0pWbX8oQncNKKvHPOp8zTcJ6Cpw5S66psFMvEQDSFEW3meYL6BmMIgr pWqGiT3BXTMI4uZpWOThnLUWI2GMaWz/0QLcZ+zrgc32ZOpJDoCJwceg/ahDytZE7R9Y HN54x0fBH8yewDbJBb4gwlFyJfhkq9TT3BLUyKMhnzNPX3MIMK8FgfaaRY0Qm9z7G6K2 tv15GkcuoJyTGybixw3SSn+LvIVQZBEEHahCtHqFYalM3HD3/sYbf0myEDgD6krCcm7V rOV5V+A54MnU4CRriHY0R1MsVc9uMpr/Cl01ljBnRXp4e6HREqNEYCcZxPTpFN0x8rIw T6kw== X-Gm-Message-State: AOAM5323DelcAQIu6VJN/QSbJfO7sG8YSP8lgjy1N9vMDCUDIcmKEk/2 vrEj6CDIJ5JFIEFSt6lINDGxxmt2u0iNbYC3mPzyJPuIqlooPYZKF7+hsvbpXzOxzDATTW5AcaW ojkqkfJyJp1N6SBrUNWP3roM0Ve4n73v080qbq6Im1w== X-Received: by 2002:adf:d1e1:0:b0:204:1e6a:d2b6 with SMTP id g1-20020adfd1e1000000b002041e6ad2b6mr10426763wrd.487.1649332230403; Thu, 07 Apr 2022 04:50:30 -0700 (PDT) X-Google-Smtp-Source: ABdhPJyw/iacGubltzuRrYq0wJnzKxM6YeBB4c6fBCu4KDzXb8b99DFvXXr1IMeYE8HAYi9opbxQHA== X-Received: by 2002:adf:d1e1:0:b0:204:1e6a:d2b6 with SMTP id g1-20020adfd1e1000000b002041e6ad2b6mr10426747wrd.487.1649332230094; Thu, 07 Apr 2022 04:50:30 -0700 (PDT) Received: from localhost ([2a01:4b00:85fd:d700:5d32:ce10:62dc:9e05]) by smtp.gmail.com with ESMTPSA id t15-20020adfeb8f000000b002060d26c211sm11514169wrn.114.2022.04.07.04.50.29 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 07 Apr 2022 04:50:29 -0700 (PDT) From: Dimitri John Ledkov To: kernel-team@lists.ubuntu.com Subject: [J/linux-riscv][PATCH] UBUNTU: [Config] Disable VMAP_STACK due to CPU stalls on EFI Date: Thu, 7 Apr 2022 12:50:23 +0100 Message-Id: <20220407115023.103642-1-dimitri.ledkov@canonical.com> X-Mailer: git-send-email 2.32.0 MIME-Version: 1.0 X-BeenThere: kernel-team@lists.ubuntu.com X-Mailman-Version: 2.1.20 Precedence: list List-Id: Kernel team discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: kernel-team-bounces@lists.ubuntu.com Sender: "kernel-team" BugLink: https://bugs.launchpad.net/bugs/1967130 When booting with EFI, VMAP_STACK causes CPU stalls. Disable this config option, until a fix exists that allows using VMAP_STACK together with EFI. VMAP_STACK on RISC-V was first added in v5.14 kernels, thus this option has not yet shipped in any stable series. EFI support is new in Jammy as well. Signed-off-by: Dimitri John Ledkov Acked-by: Tim Gardner --- debian.riscv/config/config.common.ubuntu | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/debian.riscv/config/config.common.ubuntu b/debian.riscv/config/config.common.ubuntu index 2eac551e14..34a6c3f6b6 100644 --- a/debian.riscv/config/config.common.ubuntu +++ b/debian.riscv/config/config.common.ubuntu @@ -8228,7 +8228,7 @@ CONFIG_VL6180=m CONFIG_VLAN_8021Q=m CONFIG_VLAN_8021Q_GVRP=y CONFIG_VLAN_8021Q_MVRP=y -CONFIG_VMAP_STACK=y +# CONFIG_VMAP_STACK is not set CONFIG_VME_BUS=y CONFIG_VME_FAKE=m CONFIG_VME_TSI148=m