{"id":816297,"url":"http://patchwork.ozlabs.org/api/covers/816297/?format=json","web_url":"http://patchwork.ozlabs.org/project/ubuntu-kernel/cover/cover.1505244765.git.joseph.salisbury@canonical.com/","project":{"id":15,"url":"http://patchwork.ozlabs.org/api/projects/15/?format=json","name":"Ubuntu Kernel","link_name":"ubuntu-kernel","list_id":"kernel-team.lists.ubuntu.com","list_email":"kernel-team@lists.ubuntu.com","web_url":null,"scm_url":null,"webscm_url":null,"list_archive_url":"","list_archive_url_format":"","commit_url_format":""},"msgid":"","list_archive_url":null,"date":"2017-09-20T15:17:16","name":"[SRU,Zesty,0/2] Fixes for LP:1716491","submitter":{"id":7793,"url":"http://patchwork.ozlabs.org/api/people/7793/?format=json","name":"Joseph Salisbury","email":"joseph.salisbury@canonical.com"},"mbox":"http://patchwork.ozlabs.org/project/ubuntu-kernel/cover/cover.1505244765.git.joseph.salisbury@canonical.com/mbox/","series":[{"id":4145,"url":"http://patchwork.ozlabs.org/api/series/4145/?format=json","web_url":"http://patchwork.ozlabs.org/project/ubuntu-kernel/list/?series=4145","date":"2017-09-20T15:17:17","name":"Fixes for LP:1716491","version":1,"mbox":"http://patchwork.ozlabs.org/series/4145/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/covers/816297/comments/","headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@bilbo.ozlabs.org","Authentication-Results":"ozlabs.org;\n\tspf=none (mailfrom) smtp.mailfrom=lists.ubuntu.com\n\t(client-ip=91.189.94.19; helo=huckleberry.canonical.com;\n\tenvelope-from=kernel-team-bounces@lists.ubuntu.com;\n\treceiver=)","Received":["from huckleberry.canonical.com (huckleberry.canonical.com\n\t[91.189.94.19])\n\tby ozlabs.org (Postfix) with ESMTP id 3xy3JQ1Vlrz9s7B;\n\tThu, 21 Sep 2017 01:17:26 +1000 (AEST)","from localhost ([127.0.0.1] helo=huckleberry.canonical.com)\n\tby huckleberry.canonical.com with esmtp (Exim 4.86_2)\n\t(envelope-from )\n\tid 1dugkc-0003gp-CK; Wed, 20 Sep 2017 15:17:22 +0000","from youngberry.canonical.com ([91.189.89.112])\n\tby huckleberry.canonical.com with esmtps\n\t(TLS1.0:DHE_RSA_AES_128_CBC_SHA1:128)\n\t(Exim 4.86_2) (envelope-from )\n\tid 1dugkZ-0003ec-Uf\n\tfor kernel-team@lists.ubuntu.com; Wed, 20 Sep 2017 15:17:19 +0000","from 1.general.jsalisbury.us.vpn ([10.172.67.212] helo=salisbury)\n\tby youngberry.canonical.com with esmtpsa\n\t(TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32)\n\t(Exim 4.76) (envelope-from )\n\tid 1dugkZ-0002S6-KC\n\tfor kernel-team@lists.ubuntu.com; Wed, 20 Sep 2017 15:17:19 +0000","by salisbury (Postfix, from userid 1000)\n\tid 9A31E7E2809; Wed, 20 Sep 2017 11:17:18 -0400 (EDT)"],"From":"Joseph Salisbury ","To":"kernel-team@lists.ubuntu.com","Subject":"[SRU][Zesty][PATCH 0/2] Fixes for LP:1716491 ","Date":"Wed, 20 Sep 2017 11:17:16 -0400","Message-Id":"","X-Mailer":"git-send-email 2.7.4","X-BeenThere":"kernel-team@lists.ubuntu.com","X-Mailman-Version":"2.1.20","Precedence":"list","List-Id":"Kernel team discussions ","List-Unsubscribe":",\n\t","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n\t","MIME-Version":"1.0","Content-Type":"text/plain; charset=\"utf-8\"","Content-Transfer-Encoding":"base64","Errors-To":"kernel-team-bounces@lists.ubuntu.com","Sender":"\"kernel-team\" "},"content":"BugLink: http://bugs.launchpad.net/bugs/1716491\n\n\n== SRU Justification ==\nThe current Zesty kernel does not enable marked events on Power9. The \nfollowing fixes are required:\n\n101dd590a7fa (\"powerpc/perf: Avoid spurious PMU interrupts after idle\")\n09539f9b1236 (\"powerpc/perf: POWER9 PMU stops after idle workaround\")\n \nCommit 101dd590a7fa was added to mainline in v4.13-rc3 and commit 09539f9b1236 \nwas added in v4.13-rc4. \n\n \n== Fixes ==\ncommit 101dd590a7fa37954540cf3149a1c502c0acc524\nAuthor: Nicholas Piggin \nDate: Mon Jul 10 16:19:38 2017 +1000\n\n powerpc/perf: Avoid spurious PMU interrupts after idle\n\ncommit 09539f9b123652e969894d6299ae0df2fe12cb5d\nAuthor: Nicholas Piggin \nDate: Thu Jul 20 11:53:22 2017 +1000\n\n powerpc/perf: POWER9 PMU stops after idle workaround\n\n\n== Regression Potential ==\nLow, since these commits are specific to powerpc.\n\n== Test Case ==\nA test kernel was built with these patches and tested by the original bug reporter.\nThe bug reporter states the test kernel resolved the bug.\n\n powerpc/perf: Avoid spurious PMU interrupts after idle\n powerpc/perf: POWER9 PMU stops after idle workaround\n\n arch/powerpc/kernel/idle_book3s.S | 21 ++++++++++++++++++++-\n 1 file changed, 20 insertions(+), 1 deletion(-)"}