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

[Naresh Bhat]

Hi Alexandre Montplaisir,

I got the answer from Mathew last e-mail.
*
Thanks and Regards
-Naresh Bhat*

On Tue, Dec 21, 2010 at 1:58 PM, Naresh Bhat <nareshgbhat at gmail.com> wrote:

> Hi Alexandre Montplaisir,
>
> My script contains the following lines
>
> ===========================================================
> *#!/bin/bash
> rm -rf /home/root/trace1
> mount -t debugfs debugfs /mnt/debugfs
> ltt-armall
> #echo 1 > /mnt/debugfs/ltt/markers/mm/swap_file_close/enable
> lttctl -c trace1 -w  /home/root/trace1
> lttctl -s trace1
> sleep 2
> lttctl -p trace1
> lttctl -d trace1
>
> lttctl -c trace1 -w  /home/root/trace1 -a
> lttctl -s trace1
> sleep 2
> lttctl -p trace1
> lttctl -d trace1
>
> ltt-disarmall
> #echo 0 > /mnt/debugfs/ltt/markers/mm/swap_file_close/enable
>
> lttv -m textDump -t /home/root/trace1
> #-d -v
> umount /mnt/debugfs
> *==============================================================
>
> Please, let me know if any thing wrong with my script.
>
>
> *Thanks and Regards
> -Naresh Bhat*
>
> On Fri, Dec 17, 2010 at 1:20 AM, Alexandre Montplaisir <
> alexandre.montplaisir at polymtl.ca> wrote:
>
>> On 10-12-16 10:38 AM, Naresh Bhat wrote:
>> > *root at x86-generic:~# ls -l /usr/lib/libltt*
>> > lrwxrwxrwx 1 root root    18 Dec 16 14:06 /usr/lib/liblttctl.so.0 ->
>> > liblttctl.so.0.0.0
>> > -rwxr-xr-x 1 root root 12560 Dec 13 10:49 /usr/lib/liblttctl.so.0.0.0
>> > -rwxr-xr-x 1 root root 34580 Dec 16 14:02 /usr/lib/
>> liblttvtraceread-2.6.so
>> > -rwxr-xr-x 1 root root  1103 Dec 16 14:02 /usr/lib/liblttvtraceread.la
>> > lrwxrwxrwx 1 root root    23 Dec 16 14:06 /usr/lib/liblttvtraceread.so
>> ->
>> > liblttvtraceread-2.6.so
>> > root at x86-generic:~#*
>> >
>>
>> Is this really your /usr/lib ?  (And not /usr/local/lib) ?
>>
>> You installed a version from the packages didn't you? Or did you just
>> manually install them in /usr/lib ?
>> Like Yannick said, that probably explains the error you were getting :
>> you were generating traces in the 2.5 format but the trace reading
>> library was expecting 2.6
>>
>> >> An alternative would be to update to a more recent version. You
>> >> mentioned in your previous email you are using kernel 2.6.32.21.  You
>> >> should be able to patch it with LTTng version 0.198 without too much
>> >> problems.
>> >> http://lttng.org/files/lttng/patch-2.6.32.9-lttng-0.198.tar.bz2
>> >>
>> >> This will generate patches using the trace format 2.6. You could then
>> >> use lttctl 0.87 and LTTV 0.12.36. Make sure you "make uninstall" the
>> old
>> >> versions before installing those.
>> >>
>> > With the * 2.6.32.9-lttng-0.198, ltt-control-0.87-09062010.tar.gz,
>> > lttv-0.12.36-18112010.tar.gz* I am getting the following error message
>>
>> Can you post you script?
>>
>> Then try again but making sure you only have 1 version of each tool
>> installed, either from packages or from sources.
>>
>> --
>> Alexandre Montplaisir
>> DORSAL lab,
>> École Polytechnique de Montréal
>>
>>
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