Hi, I'm installing LTTng on a BlueGene/P cluster, with Linux 2.6.29.1, patch-2.6.29.1-lttng-0.124 and ltt-control-0.75-15112-2009. After installing the patch and compiling the daemon, I run:
> lttctl -C -w ~/trace1 trace1 And I obtain: >Linux Trace Toolkit Trace Control 0.75-15112009 > >Controlling trace : trace1 > >lttctl: Creating trace >lttctl: Forking lttd >Linux Trace Toolkit Trace Daemon 0.75-15112009 > >Reading from debugfs directory : /mnt/debugfs/ltt/trace1 >Writing to trace directory : /root/trace1 > >lttctl: Starting trace and then I do the command: >lttctl -D -w ~/trace1 trace1 and I obtain : >Linux Trace Toolkit Trace Control 0.75-15112009 > >Controlling trace : trace1 > >lttctl: Pausing trace >lttctl: Forking lttd >Linux Trace Toolkit Trace Daemon 0.75-15112009 > >Reading from debugfs directory : /mnt/debugfs/ltt/trace1 >Writing to trace directory : /root/trace1 > >No channel available for reading, exiting >lttd process running failed > > /mnt/debugfs/ltt/control/trace1/channel contains only the directory metadata I verified what happen inside the code and it seems that only the "metadata" channel exists. What may be the cause of the problem? Thanks, -- Alessandro
_______________________________________________ ltt-dev mailing list [email protected] http://lists.casi.polymtl.ca/cgi-bin/mailman/listinfo/ltt-dev
