Problem with lttng-0.6.3 for MIPS arch

  
Hello,

I have ported lttng-0.6.3 on kernel 2.6.18 on MIPS target. I am facing problem while getting traces as "trace: no such file or directory." The NFS filesystme is mounted on target.

The procesure followed to start the ltt daemon and lttctl are:

#./lttd -t /tmp/trace -c /mnt/debugfs/ltt -d
This runs ltt daemon in background successfully
As it display the message 

"Linux Trace Toolkit Trace Daemon

Reading from debugfs directory : /mnt/debugfs/ltt/
Writing to trace directory : /tmp/trace"

I am able to start the trace using following command

#./lttctl -n trace_name -s
and the tracing starts as console message is 

controlling trace : trace_name

but when I try to stop the trace I get the following error:

#./lttctl -n trace_name -q

ltt_control : trace trace_name
Linux Trace Toolkit Trace Control

Stop Trace Error: No Such File or Directory 

I could debug the lttctl by insertign some printfs. I added them in lttctl_stop function after lttctl_netlink_sendto and lttctl_netlink_recvfrom.  As mentioned below.

476  err = lttctl_netlink_sendto(h, (void *)&req, req.nlh.nlmsg_len);
475     if(err < 0) goto senderr;
476
477     printf("Error after sendto %d\n",err);
478     err=0;
479     err = lttctl_netlink_recvfrom(h, (void*)&ack, sizeof(ack), 0);
480     if(err < 0) goto senderr;
481
482     printf("Error after recv %d\n",err);
483
484     err = ack.nlerr.error;
485     if(err != 0) {
486         errno = err;
487         lttctl_perror("Second  Stop Trace Error : Error Code");
488         printf("Second Received error code : %d\n",err);
489         return err;
490     }


Then the message received was :

Error after sendto 560
Error after recv 36
Second  Stop Trace Error : Error Code: No such file or directory
Second Received error code : 2


Any inputs? 
Am I missing any wrong steps?

Thanks and Best Regards,
Sagar Borikar