Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030506AbVKCVrA (ORCPT ); Thu, 3 Nov 2005 16:47:00 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1030508AbVKCVq7 (ORCPT ); Thu, 3 Nov 2005 16:46:59 -0500 Received: from mustang.oldcity.dca.net ([216.158.38.3]:9164 "HELO mustang.oldcity.dca.net") by vger.kernel.org with SMTP id S1030506AbVKCVq7 (ORCPT ); Thu, 3 Nov 2005 16:46:59 -0500 Subject: 2.6.14-rt1: oprofile doesn't work anymore From: Lee Revell To: linux-kernel Cc: Ingo Molnar Content-Type: text/plain Date: Thu, 03 Nov 2005 16:39:33 -0500 Message-Id: <1131053974.23154.9.camel@mindpipe> Mime-Version: 1.0 X-Mailer: Evolution 2.4.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1766 Lines: 50 Several months ago oprofile just stopped working on my system. All I have changed on the system was updating the kernel. This used to work perfectly. I figured it was something I overlooked but recently I double checked everything and I can't for the life of me figure out what's wrong. I am using the simple "profile" script that Andrew Morton posted several months ago. But no matter what I do, all I get is: opreport error: No sample file found: try running opcontrol --dump or specify a session containing sample files (Of course I have tried running opcontrol --dump, it has absolutely no effect) Examining the log files I see that it does not collect any samples. root@mindpipe:~# cat /var/lib/oprofile/oprofiled.log oprofiled started Thu Nov 3 16:32:05 2005 kernel pointer size: 4 Thu Nov 3 16:32:31 2005 Nr. sample dumps: 4 Nr. non-backtrace samples: 0 Nr. kernel samples: 0 Nr. lost samples (no kernel/user): 0 Nr. lost kernel samples: 0 Nr. incomplete code structs: 0 Nr. samples lost due to sample file open failure: 0 Nr. samples lost due to no permanent mapping: 0 Nr. event lost due to buffer overflow: 0 Nr. samples lost due to no mapping: 0 Nr. backtraces skipped due to no file mapping: 0 Nr. samples lost due to no mm: 0 Nr. samples lost cpu buffer overflow: 0 Nr. samples received: 0 Nr. backtrace aborted: 0 oprofiled stopped Thu Nov 3 16:32:31 2005 Is there something in the -rt tree that's known to break oprofile? Or did the userspace interface change in an incompatible way? Lee - 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/