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{ "id": 816082, "url": "http://patchwork.ozlabs.org/api/covers/816082/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linuxppc-dev/cover/20170920071512.19522-1-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": "<20170920071512.19522-1-bsingharora@gmail.com>", "list_archive_url": "https://lore.kernel.org/linuxppc-dev/20170920071512.19522-1-bsingharora@gmail.com/", "date": "2017-09-20T07:15:07", "name": "[v3,0/5] 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/20170920071512.19522-1-bsingharora@gmail.com/mbox/", "series": [ { "id": 4046, "url": "http://patchwork.ozlabs.org/api/series/4046/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linuxppc-dev/list/?series=4046", "date": "2017-09-20T07:15:07", "name": "Revisit MCE handling for UE Errors", "version": 3, "mbox": "http://patchwork.ozlabs.org/series/4046/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/covers/816082/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" ], "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 3xxrf65Z6Tz9s81\n\tfor <patchwork-incoming@ozlabs.org>;\n\tWed, 20 Sep 2017 17:17:02 +1000 (AEST)", "from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3])\n\tby lists.ozlabs.org (Postfix) with ESMTP id 3xxrf64JG5zDqXs\n\tfor <patchwork-incoming@ozlabs.org>;\n\tWed, 20 Sep 2017 17:17:02 +1000 (AEST)", "from mail-pg0-x244.google.com (mail-pg0-x244.google.com\n\t[IPv6:2607:f8b0:400e:c05::244])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128\n\tbits)) (No client certificate requested)\n\tby lists.ozlabs.org (Postfix) with ESMTPS id 3xxrcG4L6qzDqBd\n\tfor <linuxppc-dev@lists.ozlabs.org>;\n\tWed, 20 Sep 2017 17:15:26 +1000 (AEST)", "by mail-pg0-x244.google.com with SMTP id u18so1193286pgo.1\n\tfor <linuxppc-dev@lists.ozlabs.org>;\n\tWed, 20 Sep 2017 00:15:26 -0700 (PDT)", "from firefly.ozlabs.ibm.com.ozlabs.ibm.com ([122.99.82.10])\n\tby smtp.gmail.com with ESMTPSA id\n\ts68sm7482771pfd.72.2017.09.20.00.15.21\n\t(version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128);\n\tWed, 20 Sep 2017 00:15:23 -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=\"H/yBEfAv\"; 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=\"H/yBEfAv\"; dkim-atps=neutral", "ozlabs.org;\n\tspf=pass (mailfrom) smtp.mailfrom=gmail.com\n\t(client-ip=2607:f8b0:400e:c05::244; helo=mail-pg0-x244.google.com;\n\tenvelope-from=bsingharora@gmail.com; receiver=<UNKNOWN>)", "lists.ozlabs.org; dkim=pass (2048-bit key;\n\tunprotected) header.d=gmail.com header.i=@gmail.com\n\theader.b=\"H/yBEfAv\"; 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=iJqF2JnxqkudZn6sSoFC5mvRjrI1KNqj6YhCjJ8Vbx0=;\n\tb=H/yBEfAvHir4/+xrBzO5PZpmn5HpA4emAUMD8rYoik/Tun6V39eTS9CLEZ0OjifViB\n\tLIOMpo0MUZAgNJHxe2LWVmLQYJMfF3dM6zfUm79ODh7wbRNZDORQ4Z+OTJVk+JE3ct38\n\tLZz2ELWb4hjU1amnp2a4GbURDZ61WvE/eacD0jcfNjuEBwUqIzIvSHEUCaJYWCvwJaAf\n\tjWfXcIPxRffnode2hhb6K/X0bGkgPGKLqoPsEq1txq+ZWZUfZNqLcdhGdkezEBgH75sY\n\tTKq5K8thseO9PXSo61nwMAIGvLkFZ+G36aseX7T9Wx4HtsycbbHKe0TvnOTVKgZK4Pvo\n\t+oHA==", "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=iJqF2JnxqkudZn6sSoFC5mvRjrI1KNqj6YhCjJ8Vbx0=;\n\tb=WuvwKLFSACQaUcniEc1GgI0vH/7epbaN500l2fsGpio76+ZgAQoWb6Us1ALaBNvylb\n\tdRk/6aafsjqQL4ALlG6eLX7Q/D9S/QdDqVmNQ1lhck1ls+wgNj8EAZ8WctWNRm6tNUbf\n\t5Z2G31oIGA34QZ1z3VZpSIT8mQYS9SeKsWnzmVMBqReziI1yENKCO+GJyG41rWmvgyko\n\tPt39D0K+dGvOveoMce+zaCWrmwm5MnMDt5m91x6eSCaPjF3J8mwg0jwqYyhISmThUSxM\n\tCBvVzc0PDhtrrlfzFeYYAuxh6I3hPE96HdxYFviqFKJiiaqa9u2/Upl1eY1PXvb9Mklq\n\t67nQ==", "X-Gm-Message-State": "AHPjjUjGYhaSHswa2bqq3GEyqzeOmSvVGicUAJPKXYq79vS+oRXQEdMf\n\tv/71CxHEXXuqQUu/S/MuIpYAKg==", "X-Google-Smtp-Source": "AOwi7QA1YcA6r4ECPrtj34cfrHEif2/cjCsF2ClgnrMn5QmSaYBQFfvqoetas1bAS7BxC6rHQZ4Yow==", "X-Received": "by 10.84.235.7 with SMTP id o7mr1138035plk.163.1505891724359;\n\tWed, 20 Sep 2017 00:15:24 -0700 (PDT)", "From": "Balbir Singh <bsingharora@gmail.com>", "To": "mpe@ellerman.id.au", "Subject": "[PATCH v3 0/5] Revisit MCE handling for UE Errors", "Date": "Wed, 20 Sep 2017 17:15:07 +1000", "Message-Id": "<20170920071512.19522-1-bsingharora@gmail.com>", "X-Mailer": "git-send-email 2.9.5", "X-BeenThere": "linuxppc-dev@lists.ozlabs.org", "X-Mailman-Version": "2.1.24", "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": "mahesh@linux.vnet.ibm.com, linuxppc-dev@lists.ozlabs.org,\n\tnpiggin@gmail.com", "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 two patches cleanup bits, remove dead code.\nI could not find any users of get_mce_fault_addr().\nThe second one improves printing of physical address\n\nThe third 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). The fourth patch hooks\nup the pfn for instruction UE errors (ierror).\n\nThe fifth 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\nChangelog v3:\n\t- Check for recursive MCE invocations (suggested\n\tby Nick)\nChangelog v2:\n\t- Remove pr_warn from real mode to a more delayed\n\tcontext, where its OK to warn.\n\t- Add a trivial patch to align prints of physical\n\tand effective address\nChangelog v1:\n\t- Address review comments from Nick and Mahesh\n\t(initialization of pfn and more comments on failure\n\twhen addr_to_pfn() or anaylse_instr() fail)\n\t- Hookup ierrors to the framework as well\n\t(comments from Mahesh)\n\nBalbir Singh (5):\n powerpc/mce.c: Remove unused function get_mce_fault_addr()\n powerpc/mce: align the print of physical address better\n powerpc/mce: Hookup derror (load/store) UE errors\n powerpc/mce: Hookup ierror (instruction) 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 | 114 ++++++++++++++++++++++++----------------\n arch/powerpc/kernel/mce_power.c | 109 +++++++++++++++++++++++++++++++++++---\n 3 files changed, 172 insertions(+), 55 deletions(-)" }