Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752522AbbEGLlN (ORCPT ); Thu, 7 May 2015 07:41:13 -0400 Received: from szxga03-in.huawei.com ([119.145.14.66]:63503 "EHLO szxga03-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751699AbbEGLlL (ORCPT ); Thu, 7 May 2015 07:41:11 -0400 From: Xie XiuQi To: , , CC: , , , , , , Subject: [PATCH v5 0/3] tracing: add trace event for memory-failure Date: Thu, 7 May 2015 19:37:58 +0800 Message-ID: <1430998681-24953-1-git-send-email-xiexiuqi@huawei.com> X-Mailer: git-send-email 1.7.1 MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.175.100.166] X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A020203.554B4F54.029A,ss=1,re=0.000,recu=0.000,reip=0.000,cl=1,cld=1,fgs=0, ip=0.0.0.0, so=2013-05-26 15:14:31, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: d0bf7799c441fb4d60b01f4fbea2ed6a Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2128 Lines: 60 RAS user space tools like rasdaemon which base on trace event, could receive mce error event, but no memory recovery result event. So, I want to add this event to make this scenario complete. This patchset add a event at ras group for memory-failure. The output like below: # tracer: nop # # entries-in-buffer/entries-written: 2/2 #P:24 # # _-----=> irqs-off # / _----=> need-resched # | / _---=> hardirq/softirq # || / _--=> preempt-depth # ||| / delay # TASK-PID CPU# |||| TIMESTAMP FUNCTION # | | | |||| | | mce-inject-13150 [001] .... 277.019359: memory_failure_event: pfn 0x19869: recovery action for free buddy page: Delayed -- v4->v5: - fix a typo - rebase on top of latest mainline v3->v4: - rebase on top of latest linux-next - update comments as Naoya's suggestion - add #ifdef CONFIG_MEMORY_FAILURE for this trace event - change type of action_result's param 3 to enum v2->v3: - rebase on top of linux-next - based on Steven Rostedt's "tracing: Add TRACE_DEFINE_ENUM() macro to map enums to their values" patch set v1. v1->v2: - Comment update - Just passing 'result' instead of 'action_name[result]', suggested by Steve. And hard coded there because trace-cmd and perf do not have a way to process enums. Xie XiuQi (3): memory-failure: export page_type and action result memory-failure: change type of action_result's param 3 to enum tracing: add trace event for memory-failure include/linux/mm.h | 34 ++++++++++ include/ras/ras_event.h | 85 ++++++++++++++++++++++++ mm/memory-failure.c | 172 ++++++++++++++++++++---------------------------- 3 files changed, 190 insertions(+), 101 deletions(-) -- 1.8.3.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/