From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752250Ab1JSSsg (ORCPT ); Wed, 19 Oct 2011 14:48:36 -0400 Received: from va3ehsobe006.messaging.microsoft.com ([216.32.180.16]:41975 "EHLO VA3EHSOBE009.bigfish.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751710Ab1JSSsf (ORCPT ); Wed, 19 Oct 2011 14:48:35 -0400 X-SpamScore: -3 X-BigFish: VPS-3(zz4015Lzz1202hzzz32i668h839h61h) X-Spam-TCS-SCL: 0:0 X-Forefront-Antispam-Report: CIP:163.181.249.108;KIP:(null);UIP:(null);IPVD:NLI;H:ausb3twp01.amd.com;RD:none;EFVD:NLI X-WSS-ID: 0LTBTKS-01-JZK-02 X-M-MSG: From: Robert Richter To: Ingo Molnar CC: LKML , oprofile-list , Robert Richter Subject: [V2][PATCH 0/5] oprofile: Updates and fixes for timer modes Date: Wed, 19 Oct 2011 20:47:50 +0200 Message-ID: <1319050075-23901-1-git-send-email-robert.richter@amd.com> X-Mailer: git-send-email 1.7.7 MIME-Version: 1.0 Content-Type: text/plain X-OriginatorOrg: amd.com Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch series fixes and updates hr and nmi timer modes of oprofile. I got bug reports of crashes while unloading the oprofile module. There are two fixes that address this. The fixes are also for linux-stable. Another patch reworks the nmi timer mode. This was neccessary due to the removal of the x86 watchdog. Now nmi timer mode uses perf event to setup the nmi tick source. The other patches improve testability and ease exit code. After review I will apply the patches to the oprofile tree. Thanks, -Robert V2: Only changes in patch #5: * removing pr_info() * fix undefined reference to `__udivdi3' for 32 bit build * fix section mismatch of .cpuinit.data:nmi_timer_cpu_nb * removed nmi timer setup in arch/x86 * implemented function stubs for op_nmi_init/exit() * made code more readable in oprofile_init() Robert Richter (5): oprofile, x86: Add kernel parameter oprofile.cpu_type=timer oprofile: Fix crash when unloading module (hr timer mode) oprofile, x86: Fix crash when unloading module (nmi timer mode) oprofile: Remove exit function for timer mode oprofile, x86: Reimplement nmi timer mode using perf event Documentation/kernel-parameters.txt | 3 + arch/Kconfig | 4 + arch/x86/oprofile/Makefile | 3 +- arch/x86/oprofile/init.c | 25 ++---- arch/x86/oprofile/nmi_int.c | 27 ++++- arch/x86/oprofile/nmi_timer_int.c | 66 ------------- drivers/oprofile/nmi_timer_int.c | 173 +++++++++++++++++++++++++++++++++++ drivers/oprofile/oprof.c | 21 ++++- drivers/oprofile/oprof.h | 9 ++ drivers/oprofile/timer_int.c | 29 +++--- kernel/events/core.c | 2 + 11 files changed, 252 insertions(+), 110 deletions(-) delete mode 100644 arch/x86/oprofile/nmi_timer_int.c create mode 100644 drivers/oprofile/nmi_timer_int.c -- 1.7.7