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{ "id": 809916, "url": "http://patchwork.ozlabs.org/api/covers/809916/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linuxppc-dev/cover/20170905041555.27696-1-bsingharora@gmail.com/", "project": { "id": 2, "url": "http://patchwork.ozlabs.org/api/projects/2/?format=api", "name": "Linux PPC development", "link_name": "linuxppc-dev", "list_id": "linuxppc-dev.lists.ozlabs.org", "list_email": "linuxppc-dev@lists.ozlabs.org", "web_url": "https://github.com/linuxppc/wiki/wiki", "scm_url": "https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git", "webscm_url": "https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/", "list_archive_url": "https://lore.kernel.org/linuxppc-dev/", "list_archive_url_format": "https://lore.kernel.org/linuxppc-dev/{}/", "commit_url_format": "https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/commit/?id={}" }, "msgid": "<20170905041555.27696-1-bsingharora@gmail.com>", "list_archive_url": "https://lore.kernel.org/linuxppc-dev/20170905041555.27696-1-bsingharora@gmail.com/", "date": "2017-09-05T04:15:52", "name": "[rfc,0/3] Revisit MCE handling for UE errors", "submitter": { "id": 9347, "url": "http://patchwork.ozlabs.org/api/people/9347/?format=api", "name": "Balbir Singh", "email": "bsingharora@gmail.com" }, "mbox": "http://patchwork.ozlabs.org/project/linuxppc-dev/cover/20170905041555.27696-1-bsingharora@gmail.com/mbox/", "series": [ { "id": 1484, "url": "http://patchwork.ozlabs.org/api/series/1484/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linuxppc-dev/list/?series=1484", "date": "2017-09-05T04:15:52", "name": "Revisit MCE handling for UE errors", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/1484/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/covers/809916/comments/", "headers": { "Return-Path": "<linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org>", "X-Original-To": [ "patchwork-incoming@ozlabs.org", "linuxppc-dev@lists.ozlabs.org" ], "Delivered-To": [ "patchwork-incoming@ozlabs.org", "linuxppc-dev@lists.ozlabs.org", "linuxppc-dev@ozlabs.org" ], "Received": [ "from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3])\n\t(using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 3xmYN93dSsz9s9Y\n\tfor <patchwork-incoming@ozlabs.org>;\n\tTue, 5 Sep 2017 14:17:45 +1000 (AEST)", "from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3])\n\tby lists.ozlabs.org (Postfix) with ESMTP id 3xmYN92VTgzDrGr\n\tfor <patchwork-incoming@ozlabs.org>;\n\tTue, 5 Sep 2017 14:17:45 +1000 (AEST)", "from ozlabs.org (ozlabs.org [IPv6:2401:3900:2:1::2])\n\t(using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby lists.ozlabs.org (Postfix) with ESMTPS id 3xmYLL3TnMzDqnQ\n\tfor <linuxppc-dev@lists.ozlabs.org>;\n\tTue, 5 Sep 2017 14:16:10 +1000 (AEST)", "from ozlabs.org (ozlabs.org [IPv6:2401:3900:2:1::2])\n\tby bilbo.ozlabs.org (Postfix) with ESMTP id 3xmYLL1ZcPz8vDW\n\tfor <linuxppc-dev@lists.ozlabs.org>;\n\tTue, 5 Sep 2017 14:16:10 +1000 (AEST)", "by ozlabs.org (Postfix)\n\tid 3xmYLL16TDz9sPk; Tue, 5 Sep 2017 14:16:10 +1000 (AEST)", "from mail-pf0-x244.google.com (mail-pf0-x244.google.com\n\t[IPv6:2607:f8b0:400e:c00::244])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128\n\tbits)) (No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 3xmYLK3htlz9s9Y\n\tfor <linuxppc-dev@ozlabs.org>; Tue, 5 Sep 2017 14:16:09 +1000 (AEST)", "by mail-pf0-x244.google.com with SMTP id g13so771427pfm.2\n\tfor <linuxppc-dev@ozlabs.org>; Mon, 04 Sep 2017 21:16:08 -0700 (PDT)", "from firefly.ozlabs.ibm.com.ozlabs.ibm.com ([122.99.82.10])\n\tby smtp.gmail.com with ESMTPSA id\n\tw6sm11634415pfb.13.2017.09.04.21.16.04\n\t(version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128);\n\tMon, 04 Sep 2017 21:16:06 -0700 (PDT)" ], "Authentication-Results": [ "ozlabs.org;\n\tdkim=fail reason=\"signature verification failed\" (2048-bit key;\n\tunprotected) header.d=gmail.com header.i=@gmail.com\n\theader.b=\"E6AflxD2\"; dkim-atps=neutral", "lists.ozlabs.org;\n\tdkim=fail reason=\"signature verification failed\" (2048-bit key;\n\tunprotected) header.d=gmail.com header.i=@gmail.com\n\theader.b=\"E6AflxD2\"; dkim-atps=neutral", "lists.ozlabs.org; dkim=pass (2048-bit key;\n\tunprotected) header.d=gmail.com header.i=@gmail.com\n\theader.b=\"E6AflxD2\"; dkim-atps=neutral", "ozlabs.org;\n\tspf=pass (mailfrom) smtp.mailfrom=gmail.com\n\t(client-ip=2607:f8b0:400e:c00::244; helo=mail-pf0-x244.google.com;\n\tenvelope-from=bsingharora@gmail.com; receiver=<UNKNOWN>)", "ozlabs.org; dkim=pass (2048-bit key;\n\tunprotected) header.d=gmail.com header.i=@gmail.com\n\theader.b=\"E6AflxD2\"; dkim-atps=neutral" ], "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025;\n\th=from:to:cc:subject:date:message-id;\n\tbh=iR6g/i2CBJ2twc6RlnCyoXhEjShFqR3bPjZI1nqIxmM=;\n\tb=E6AflxD26/nzrxPBP3ZBDvfusfNAemt8pcwiaOXY3s+TqfKUNozj5e3aC41tYb56wx\n\t8e4fLQyjw7eCtYSX/ckhl/+XiAM4nL8U1LQnkJQP7//g8EI0Em+wgM84rO35RCB3Ar9b\n\tPx84sEsihqzscYzjbfyITe1C2SHPpTl+o8kbV97s99djFiXCngROdq04GwSUWp3UnNS/\n\tvlibENBN6cOvVD9JTBJVyUu58jbMGZogCCnunajRCN3RXbd0QZazbgoWaa2hZxgbnYoc\n\tNqm4AQxw99bMMt6uzsw5+RDKC8l/y6FWGMEkz8eOp25vFGbdd7aQ94BRz5y7p7TbGZjk\n\tCMKQ==", "X-Google-DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed;\n\td=1e100.net; s=20161025;\n\th=x-gm-message-state:from:to:cc:subject:date:message-id;\n\tbh=iR6g/i2CBJ2twc6RlnCyoXhEjShFqR3bPjZI1nqIxmM=;\n\tb=dUzgk9+JSmLOKuqHZGHz11AIUv+YtqQYjWTVp+1WJgfEukhqYlkCayPjLQlENXTFqT\n\tFnw5s1YcsgeiqDfaDhibEO/OD1n/NDe7r4NBH3QN891LlihcKV1DnaLAP53x/oHBjNcX\n\tzYSEX5BhzMCOrr9eYvnkEJjJi6gGcrjSati+JjLvuY9Ar6WulKIm2f2u5hl5rhqCq1A+\n\tq5C0EI0WKfwFwn2IyPyyqY2iDkryx1BASq6RBht+rnHyjPDPz89oyGlUEsFxHvScmTs4\n\tK465++PbqCK+QIlGmZpxCSHN01IZR3HcIsYBv8ooK+H3CPTVKECPvaFnfJjkLyDA1nZF\n\tQ4hw==", "X-Gm-Message-State": "AHPjjUg/HB9+YnglH1XJ8mW+nzBc54CdxaC6Es27Kjp/CkIoewENCWE4\n\tOjKvypL1CzxuXQ==", "X-Google-Smtp-Source": "ADKCNb7twx1b0ezpbLuV/CY0B6aiO9b7IjcUYgn6fQsP37m58z+Ed4o2Hz9140c1sm32PdQKobXt4g==", "X-Received": "by 10.99.126.84 with SMTP id o20mr2672347pgn.137.1504584967298; \n\tMon, 04 Sep 2017 21:16:07 -0700 (PDT)", "From": "Balbir Singh <bsingharora@gmail.com>", "To": "npiggin@gmail.com,\n\tmahesh@linux.vnet.ibm.com,\n\talistair@popple.id.au", "Subject": "[rfc 0/3] Revisit MCE handling for UE errors", "Date": "Tue, 5 Sep 2017 14:15:52 +1000", "Message-Id": "<20170905041555.27696-1-bsingharora@gmail.com>", "X-Mailer": "git-send-email 2.9.5", "X-BeenThere": "linuxppc-dev@lists.ozlabs.org", "X-Mailman-Version": "2.1.23", "Precedence": "list", "List-Id": "Linux on PowerPC Developers Mail List\n\t<linuxppc-dev.lists.ozlabs.org>", "List-Unsubscribe": "<https://lists.ozlabs.org/options/linuxppc-dev>,\n\t<mailto:linuxppc-dev-request@lists.ozlabs.org?subject=unsubscribe>", "List-Archive": "<http://lists.ozlabs.org/pipermail/linuxppc-dev/>", "List-Post": "<mailto:linuxppc-dev@lists.ozlabs.org>", "List-Help": "<mailto:linuxppc-dev-request@lists.ozlabs.org?subject=help>", "List-Subscribe": "<https://lists.ozlabs.org/listinfo/linuxppc-dev>,\n\t<mailto:linuxppc-dev-request@lists.ozlabs.org?subject=subscribe>", "Cc": "linuxppc-dev@ozlabs.org", "Errors-To": "linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org", "Sender": "\"Linuxppc-dev\"\n\t<linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org>" }, "content": "This patch series is designed to hook up memory_failure on\nUE errors, this is specially helpful for user_mode UE errors.\n\nThe first patch is a cleanup patch, it removes dead code.\nI could not find any users of get_mce_fault_addr().\nThe second patch walks kernel/user mode page tables in\nreal mode to extract the effective address of the instruction\nthat caused the UE error and the effective address it was\ntrying to access (for load/store).\nThe third patch hooks up memory_failure to the MCE patch.\n\nTODO:\nLog the address in NVRAM, so that we can recover from\nbad pages at boot and keep the blacklist persistent.\n\nBalbir Singh (3):\n powerpc/mce.c: Remove unused function get_mce_fault_addr()\n powerpc/mce: Extract physical_address for UE errors\n powerpc/mce: hookup memory_failure for UE errors\n\n arch/powerpc/include/asm/mce.h | 4 +-\n arch/powerpc/kernel/mce.c | 107 ++++++++++++++++++++++++----------------\n arch/powerpc/kernel/mce_power.c | 60 ++++++++++++++++++++--\n 3 files changed, 120 insertions(+), 51 deletions(-)" }