From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753012Ab1AFOwI (ORCPT ); Thu, 6 Jan 2011 09:52:08 -0500 Received: from mail-bw0-f46.google.com ([209.85.214.46]:48226 "EHLO mail-bw0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752863Ab1AFOwG (ORCPT ); Thu, 6 Jan 2011 09:52:06 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=from:to:cc:subject:date:message-id:x-mailer; b=b/JL1x4mTDxmqoWbAmt/F8vM1PgndZkTlJ7d8OwegOPYjentI+7jOGyvLF4z4I8KG8 bfpvPO8vkqt11j+GJK/UX0IXJdqsRwouHCuc0fgnFd4GCOTjIb7MEjBC0iYtxWIdEzAm iR8DSxIEANG3EERA7yyZ+eBoCtyLZdku7H3dk= From: Frederic Weisbecker To: Ingo Molnar Cc: LKML , Frederic Weisbecker , Peter Zijlstra , Arnaldo Carvalho de Melo , Soeren Sandmann Pedersen Subject: [RFC GIT PULL] perf updates Date: Thu, 6 Jan 2011 15:51:51 +0100 Message-Id: <1294325513-14276-1-git-send-email-fweisbec@gmail.com> X-Mailer: git-send-email 1.7.3.2 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Ingo, Please pull the perf/core branch that can be found at: git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing.git perf/core Soeren reported some time ago that callchains were broken on x86_64 with cpu-clock/task-clock events. After some time I finally found the problem was in the irq low level arg saving. It touches fragile code though, I hope some people can have a look over the fix. Thanks, Frederic --- Frederic Weisbecker (2): x86: Fix rbp saving in pt_regs on irq entry perf: Build tools with frame pointer arch/x86/kernel/entry_64.S | 31 +++++++++++++++++++------------ tools/perf/Makefile | 2 +- 2 files changed, 20 insertions(+), 13 deletions(-)