Re: No sample file found

[Robert R. <rob...@am...>]

On 03.11.09 10:21:40, job...@ao... wrote:
> I tried that and am still seeing the "bad magic number" error when  
> running opreport and "Invalid argument" entries in oprofiled.log.
> 
> 
> The commands I am using and part of oprofiled.log follow.  Any  
> suggestions?
> 
> Eclipse # rm /var/lib/oprofile/samples/oprofiled.log
> Eclipse # rm -rf /var/lib/oprofile/samples/current/
> Eclipse # cd /usr/bin/
> Eclipse # ./opcontrol --init
> mount: mounting nodev on /dev/oprofile failed: Device or resource busy

There is an error mounting oprofilefs, try the following steps to
debug this:

First, unmount /dev/oprofile if it is there.

The script tries to mount the oprofile filesystem that the kernel
should provide. It checks /proc/filesystems, you should get something
like this on your system:

 # cat /proc/filesystems | grep oprofile
 nodev  oprofilefs

If it is not there, the script tries then to load the oprofile module
and checks the filesystem again. oprofile should then be listed in
/proc/modules and also oprofilefs in /proc/filesystems. If not, the
script fails. Maybe /proc is disabled or not available? Not sure if
this is a config option.

You can also try to mount oprofile directly:

 # mkdir /dev/oprofile
 # mount -t oprofilefs nodev /dev/oprofile

Also, it seems you are using an own build of oprofile, which version
are you using. Did you use configure/make/make install to install the
package on your system? Which config did you use to compile your
kernel?

-Robert

-- 
Advanced Micro Devices, Inc.
Operating System Research Center
email: rob...@am...