From patchwork Wed Sep 27 15:32:40 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Joseph Salisbury X-Patchwork-Id: 819216 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) 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]) by ozlabs.org (Postfix) with ESMTP id 3y2MLG5ZNsz9tXw; Thu, 28 Sep 2017 01:33:58 +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 1dxELR-0000CF-NO; Wed, 27 Sep 2017 15:33:53 +0000 Received: from youngberry.canonical.com ([91.189.89.112]) by huckleberry.canonical.com with esmtps (TLS1.0:DHE_RSA_AES_128_CBC_SHA1:128) (Exim 4.86_2) (envelope-from ) id 1dxELQ-0000Bl-3X for kernel-team@lists.ubuntu.com; Wed, 27 Sep 2017 15:33:52 +0000 Received: from 1.general.jsalisbury.us.vpn ([10.172.67.212] helo=salisbury) by youngberry.canonical.com with esmtpsa (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.76) (envelope-from ) id 1dxEKI-0000wr-Ha for kernel-team@lists.ubuntu.com; Wed, 27 Sep 2017 15:32:42 +0000 Received: by salisbury (Postfix, from userid 1000) id AF5877E28CE; Wed, 27 Sep 2017 11:32:41 -0400 (EDT) From: Joseph Salisbury To: kernel-team@lists.ubuntu.com Subject: [SRU][Zesty][PATCH 0/1] powerpc/64s: Handle data breakpoints in Radix mode Date: Wed, 27 Sep 2017 11:32:40 -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: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: kernel-team-bounces@lists.ubuntu.com Sender: "kernel-team" BugLink: http://bugs.launchpad.net/bugs/1706033 == SRU Justification == IBM found this bug while running the perftool testsuite. The perf hw breakpoint fails and it result in call traces, which then causes the system to reboot. This bug is fixed by commit d89ba5353f301971dd7d2f9fdf25c4432728f38e which is in mainline as of v4.12-rc7. This commit was also cc'd to upstream stable, but Zesty never recieved it because upstream 4.10 is EOL. == Fix == commit d89ba5353f301971dd7d2f9fdf25c4432728f38e Author: Naveen N. Rao Date: Wed Jun 14 00:12:00 2017 +0530 powerpc/64s: Handle data breakpoints in Radix mode == Regression Potential == Specific to powerpc. Also, this commit was also cc'd to stable and accepted, so additional upstream review was performed. == Test Case == A test kernel was built with this patch and tested by the original bug reporter. The bug reporter states the test kernel resolved the bug. Naveen N. Rao (1): powerpc/64s: Handle data breakpoints in Radix mode arch/powerpc/kernel/exceptions-64s.S | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-)