From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755678Ab0KJL4e (ORCPT ); Wed, 10 Nov 2010 06:56:34 -0500 Received: from mx1.redhat.com ([209.132.183.28]:21640 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754404Ab0KJL43 (ORCPT ); Wed, 10 Nov 2010 06:56:29 -0500 From: Jiri Olsa To: mingo@elte.hu, rostedt@goodmis.org, andi@firstfloor.org, lwoodman@redhat.com Cc: linux-kernel@vger.kernel.org Subject: [PATCH 0/2] tracing,mm - add kernel pagefault tracepoint for x86 & x86_64 Date: Wed, 10 Nov 2010 12:56:10 +0100 Message-Id: <1289390172-9730-1-git-send-email-jolsa@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This provides a tracepoint to trace kernel pagefault event for x86 and x86_64 architectures. There's a problem with this tracepoint when having the userstacktrace option enabled, since it might generated the page fault itself. The 2/2 patch address this issue. attached patches: 1/2 tracing,mm - add kernel pagefault tracepoint for x86 & x86_64 2/2 tracing - fix recursive user stack trace wbr, jirka --- arch/x86/mm/fault.c | 32 +++++++++++++++++++++----------- include/trace/events/kmem.h | 22 ++++++++++++++++++++++ kernel/trace/trace.c | 19 +++++++++++++++++++ 3 files changed, 62 insertions(+), 11 deletions(-)