[ltt-dev] ** ERROR **: Kernel/LTTV event size differs for event tree_call_rcu_bh

Naresh Bhat nareshgbhat at gmail.com
Wed Dec 15 06:38:41 EST 2010


Hi Mathew/Alexandre Montplaisir,

Thanks for clarifying. I have the following versions

1. My linux kernel version is - *2.6.32.21*

2. lttv version is
    root at x86-generic:~# lttv --help
   * Linux Trace Toolkit Visualizer 0.12.29-02022010*

3.  lttctl version is
    root at x86-generic:~# lttctl --help
   * Linux Trace Toolkit Trace Control 0.78-04122009*


I have tried with the following combinations on x86 32bit generic
architecture.  The *GREEN* colour one's are best combination which I found
from compatibility list. But I have marked it as failed because I am getting
following error.

*lttv -m textDump -t tc-lttng-002 -d -v > tc-lttng-006.log

** ERROR **: Kernel/LTTV event size differs for event
tree_call_rcu_bh: kernel 4, LTTV 8
aborting...
Aborted
test:target$ *

*lttv failed to parse trace files in textDump mode*



   lttv-0.12.24-27112009.tar.gz ltt-control-0.75-15112009 Failed
ltt-control-0.76-16112009 Failed
ltt-control-0.77-18112009 Failed
ltt-control-0.78-04122009 Failed
ltt-control-0.79-01022010 Failed


 lttv-0.12.27-29012010.tar.gz ltt-control-0.75-15112009 Failed
ltt-control-0.76-16112009 Failed
ltt-control-0.77-18112009 Failed
ltt-control-0.78-04122009 Failed
ltt-control-0.79-01022010 Failed
ltt-control-0.80-25032010 Failed
ltt-control-0.81-26032010 Failed





 lttv-0.12.28-29012010.tar.gz ltt-control-0.75-15112009 Failed
ltt-control-0.76-16112009 Failed
ltt-control-0.77-18112009 Failed
ltt-control-0.78-04122009 Failed
ltt-control-0.79-01022010 Failed
ltt-control-0.80-25032010 Failed
ltt-control-0.81-26032010 Failed





 lttv-0.12.29-02022010.tar.gz ltt-control-0.75-15112009 Failed
ltt-control-0.76-16112009 Failed
ltt-control-0.77-18112009 Failed
ltt-control-0.78-04122009 Failed
ltt-control-0.79-01022010 Failed
ltt-control-0.80-25032010 Failed
ltt-control-0.81-26032010 Failed


 lttv-0.12.30-02102010.tar.gz ltt-control-0.75-15112009 Failed
ltt-control-0.76-16112009 Failed
ltt-control-0.77-18112009 Failed
ltt-control-0.78-04122009 Failed
ltt-control-0.79-01022010 Failed
ltt-control-0.80-25032010 Failed
ltt-control-0.81-26032010 Failed





 lttv-0.12.31-04072010.tar.gz ltt-control-0.75-15112009 Failed
ltt-control-0.76-16112009 Failed
ltt-control-0.77-18112009 Failed
ltt-control-0.78-04122009 Failed
ltt-control-0.79-01022010 Failed
ltt-control-0.80-25032010 Failed
ltt-control-0.81-26032010 Failed




Let me know is there any other informations required ?

*Thanks and Regards
-Naresh Bhat*

On Wed, Nov 24, 2010 at 6:36 PM, Alexandre Montplaisir <
alexandre.montplaisir at polymtl.ca> wrote:

> On 10-11-24 04:17 AM, Naresh Bhat wrote:
>
>> Hi Mathew,
>>
>> Thank you very much for the information. My kernel version
>> is*"2.6.32.4-lttng-0.188"
>> * and LTTV version is* "**Linux Trace Toolkit Trace Control
>> 0.78-04122009".
>> *But according to compatibility list it should work.*
>>
>> Thanks and Regards
>> -Naresh Bhat
>>
>
> Hi Naresh,
>
> I think you are mistaking "lttctl" for "LTTV" ;)
>
> lttctl = Linux Trace Toolkit Control. You have version 0.78 of this.
> lttv = Linux Trace Toolkit Viewer. You can get its version by running "lttv
> --help" and checking the first line of the output.
>
> It's possible you are using a version of LTTV that was made for a different
> version of LTTng, which could explain the "event size differs" error you are
> getting.
>
> Cheers,
>
> --
> Alexandre Montplaisir
> DORSAL lab,
> École Polytechnique de Montréal
>
>
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