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

[Naresh Bhat]

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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