Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752897AbZIWOBT (ORCPT ); Wed, 23 Sep 2009 10:01:19 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751151AbZIWOBS (ORCPT ); Wed, 23 Sep 2009 10:01:18 -0400 Received: from mx1.redhat.com ([209.132.183.28]:52118 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751041AbZIWOBR (ORCPT ); Wed, 23 Sep 2009 10:01:17 -0400 Message-ID: <4ABA2A0B.1010103@redhat.com> Date: Wed, 23 Sep 2009 17:00:43 +0300 From: Avi Kivity User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.1) Gecko/20090814 Fedora/3.0-2.6.b3.fc11 Thunderbird/3.0b3 MIME-Version: 1.0 To: Mike Galbraith CC: Arnaldo Carvalho de Melo , rostedt@goodmis.org, LKML , Ingo Molnar , Mathieu Desnoyers , Peter Zijlstra , Frederic Weisbecker , Thomas Gleixner , Masami Hiramatsu Subject: Re: [patch] Re: [perf] Finding uninstalled modules Was Re: mailing list for trace users References: <1253132182.20020.242.camel@gandalf.stny.rr.com> <4AB89520.2050900@redhat.com> <1253618894.13917.18.camel@marge.simson.net> <4AB8B65F.7030602@redhat.com> <1253620041.13917.24.camel@marge.simson.net> <4AB8BA37.4010305@redhat.com> <20090922201746.GH5216@ghostprotocols.net> <4AB9DCC8.5050603@redhat.com> <1253697658.11461.36.camel@marge.simson.net> <4AB9F08E.1020106@redhat.com> <1253705515.7835.41.camel@marge.simson.net> <4ABA1B75.7040900@redhat.com> <4ABA1E3B.40800@redhat.com> <1253713800.7816.15.camel@marge.simson.net> In-Reply-To: <1253713800.7816.15.camel@marge.simson.net> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2436 Lines: 88 On 09/23/2009 04:50 PM, Mike Galbraith wrote: > On Wed, 2009-09-23 at 16:10 +0300, Avi Kivity wrote: > >> On 09/23/2009 03:58 PM, Avi Kivity wrote:On 09/23/2009 03:58 PM, Avi >> Kivity wrote: >> >>> Not for me. 'perf report', for example, shows >>> >>> 63.08% qemu-system-x86 >>> [kernel] [k] packet_exit >>> 4.71% qemu-system-x86 >>> [kernel] [k] hpet_next_event >>> 4.38% init >>> [kernel] [k] >>> mwait_idle_with_hints >>> >>> While 'perf top' still shows vmx_vcpu_run. >>> >>> >> strace says: >> >> getcwd("/home/avi/kvm/linux-2.6"..., 4096) = 24 >> ... >> [no chdir] >> ... >> open("kernel/arch/x86/kvm/kvm-intel.ko", O_RDONLY) = -1 ENOENT (No >> such file or directory) >> > *blink* > > >> That "kernel/" looks like it was meant for /lib/modules, not a kernel >> tree. If I run 'perf report' from /lib/modules/2.6.31 I see vmx_vcpu_run. >> > So I need what's in your modules.dep to figure out where the rest of the > path went. > > Mine says: kernel/arch/x86/kvm/kvm.ko: kernel/arch/x86/kvm/kvm-intel.ko: kernel/arch/x86/kvm/kvm.ko Which is reasonable for /lib/modules/2.6.31, not for a source directory. > /lib/modules/2.6.32-tip-smp/kernel/arch/x86/kvm/kvm-intel.ko > > static int mod_dso__load_module_paths(struct mod_dso *self) > { > struct utsname uts; > int count = 0, len; > char *line = NULL; > FILE *file; > char *path; > size_t n; > > if (uname(&uts)< 0) > goto out_failure; > > len = strlen("/lib/modules/"); > len += strlen(uts.release); > len += strlen("/modules.dep"); > > path = calloc(1, len); > len + 1 > if (path == NULL) > goto out_failure; > > strcat(path, "/lib/modules/"); > strcat(path, uts.release); > strcat(path, "/modules.dep"); > > file = fopen(path, "r"); > > -- error compiling committee.c: too many arguments to function -- 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/