Re: Facing problem while patching LTTng 0.9.5 with linux kernel 2.6.21

Hi Mathieu,

I am using the lttv version of 0.8.82 which is compatible for 2.6.21
kernel.

So when I try to open the trace generated, it has given the following
error messages: 
************************************************************************
*

test-devsys:/home/rrao/NFS/NFS_test/home/sreddy/LinuxTraceToolkitViewer-
0.8.82-09042007/lttv/lttv# ./lttv-gui
** Message: statistics viewer : background computation data ready.
** Message: statistics viewer : background computation data ready.

** (lt-lttv.real:6548): WARNING **: Facility checksum mismatch for
facility core : kernel 0xB96B8A8D vs XML 0x1212DF53


** (lt-lttv.real:6548): WARNING **: Facility checksum mismatch for
facility mm : kernel 0xE2F8E03B vs XML 0x5DD3900C


** (lt-lttv.real:6548): WARNING **: Facility checksum mismatch for
facility kernel_arch : kernel 0x3D22856 vs XML 0xFCD2247B


** (lt-lttv.real:6548): WARNING **: Facility checksum mismatch for
facility list : kernel 0x55E7EB91 vs XML 0x4DA5EA7A


** (lt-lttv.real:6548): WARNING **: Facility checksum mismatch for
facility net : kernel 0xF3E69EB3 vs XML 0x4BF8A6A8


** (lt-lttv.real:6548): WARNING **: Facility checksum mismatch for
facility kernel : kernel 0x1DDF2BD3 vs XML 0x58E1793A


** (lt-lttv.real:6548): WARNING **: Facility checksum mismatch for
facility fs : kernel 0xEC4B78E1 vs XML 0x7D72FF54


** ERROR **: Kernel/LTTV event size differs for event fs.lseek: kernel
16, LTTV 12
aborting...
./lttv-gui: line 10:  6548 Aborted                 $LTTV_CMD.real -m
guievents -m guifilter -m guicontrolflow -m guistatistics -m
guitracecontrol $*
test-devsys:/home/rrao/NFS/NFS_test/home/sreddy/LinuxTraceToolkitViewer-
0.8.82-09042007/lttv/lttv#   

************************************************************************
***

Please let me know about this.

-Srinivas.




-----Original Message-----
From: Mathieu Desnoyers [mailto:[email protected]] 
Sent: Thursday, July 26, 2007 7:45 PM
To: Srinivasa Reddy
Cc: [email protected]
Subject: Re: [Ltt-dev] Facing problem while patching LTTng 0.9.5 with
linux kernel 2.6.21

* Srinivasa Reddy ([email protected]) wrote:
> Hi Mathieu,
> 
> Good news.. Now I am able to generate some trace data.
> The problem was mounting debugfs.
> So when I gave "mount /mnt/debugfs" command after booting, then it
> started generating the trace information.
> 
> But unfortunately the viewer gave the following bundle of errors. 
> 
> ************************************************************
> 
> test-devsys:/home/rrao/NFS/NFS_test/home/sreddy# lttv-gui
> 
> ** (lttv.real:9515): WARNING **: parse_trace_header error
> 
> ** (lttv.real:9515): WARNING **: parse_trace_header error
> 
> ** (lttv.real:9515): WARNING **: parse_trace_header error
> 
> ** (lttv.real:9515): WARNING **: parse_trace_header error
> 
> ** (lttv.real:9515): WARNING **: parse_trace_header error
> 
> ** (lttv.real:9515): WARNING **: parse_trace_header error
> 
> ** ERROR **: Trace /home/rrao/NFS/NFS_test/home/sreddy/trace1 has no
> facility tracefile
> aborting...
> /usr/bin/lttv-gui: line 10:  9515 Aborted
$LTTV_CMD.real
> -m guievents -m guifilter -m guicontrolflow -m guistatistics -m
> guitracecontrol $*
> 
> 
> **********************************************************
> 
> So is the data generated is proper or something is missing in the
data.
> If you want is will send those generated files.
> Please let me know about this.
> 

Please go back in this email thread and repeat the steps I pointed to. I
suspect that you use the wrong LTTV version. Please provide the listings
I have requested earlier (listing of trace directory at least) so I can
help you further.

Mathieu

> Regards,
> Srinivas.
> 

-- 
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F  BA06 3F25 A8FE 3BAE
9A68