[ltt-dev] [Lttng] Need help in running the Lttng on ARMv7 hardware with linux 2.6.35.7 kernel

[sr.muralidhar@gmail.com (Murali S R)]

Hi Mathieu, I tried the higher version of lttng-modules too ... But still
facing the same problem :(

On Thu, Apr 28, 2011 at 10:15 PM, Mathieu Desnoyers <
compudj at krystal.dyndns.org> wrote:

>  * Murali S R (sr.muralidhar at gmail.com) wrote:
> > On Thu, Apr 28, 2011 at 6:01 PM, Mathieu Desnoyers <
> > compudj at krystal.dyndns.org> wrote:
> >
> > > * Murali S R (sr.muralidhar at gmail.com) wrote:
> > > > Hi All,
> > > >
> > > > I am trying to run lttng on ARMv7 target with the following
> > > > Kernel --- linux 2.6.35.7 kernel and
> > > > Lttng Kernel Patch --- patch-2.6.35.7-lttng-0.232.tar.bz2
> > > > Modules --- lttng-modules-0.19.1.tar.bz2
> > > > Control Modules --- ltt-control-0.88-09242010.tar.gz
> > > >
> > > > Whenever i enable the statedump ( by loading the ltt-statedump
> module)
> > > and
> > > > run lttctl tracing ( lttctl -C -w /tmp/trace trace ),
> > > > immediately a log "LTT Statedump end" is thrown.
> > > >
> > > > After which i can still see some trace data being accumulated in the
> > > trace
> > > > path (/tmp/trace).
> > > >
> > > > Now if i close the tracing (lttctl -D trace) & try to view the trace
> > > using
> > > > lttv-gui, It gets terminated with segmentation fault error.
> > >
> > > What version of LTTV are you using ? Does it match your lttng-modules
> > > version as specified in the compatibility list on the lttng.orgwebsite
> > > download section ?
> > >
> > > Thanks,
> > >
> > > Mathieu
> > >
> > > >
> > > > Can anyone help in letting me know where i am doing wrong.
> > > > Also, is there any means to trace only a particular module instead of
> > > entire
> > > > kernel.
> > > >
> > > > Thanks in advance :)
> > > >
> > > > --
> > > > Regards,
> > > > Murali
> > >
> > > > _______________________________________________
> > > > ltt-dev mailing list
> > > > ltt-dev at lists.casi.polymtl.ca
> > > > http://lists.casi.polymtl.ca/cgi-bin/mailman/listinfo/ltt-dev
> > >
> > >
> > > --
> > > Mathieu Desnoyers
> > > Operating System Efficiency R&D Consultant
> > > EfficiOS Inc.
> > > http://www.efficios.com
> > >
> >
> >
> > Hi Mathieu,
> >
> > Thanks for the reply ... am using lttv version : 0.12.36, which is
> > compatible according to the compatibility list.
> > Also, one more thing what i observed is if i do not enable the statedump,
> i
> > am able to get the trace dump, which i can view in lttv-gui.
> >
> > But that doesnt give any details on the process name ...
> >
> > Is there anything i am missing ??
>
> Probably that the statedump module was buggy in that lttng-modules
> version. You might want to try a newer release.
>
> Thanks,
>
> Mathieu
>
> >
> > I followed the foll procedure :
> > 1. downloaded and patched the lttng 0.232 version on 2.6.35.7
> > 2. built the kernel and lttng modules and the ltt-control modules.
> > 3. installed the modules on target.
> > 4. then loaded all the required modules
> > 5. started ltt-armall
> > 6. exported the lttd path
> > 7. then executed lttctl to create trace
> > 8. after collecting the trace (without statedump) from the target onto my
> > pc,
> > i am able to view that trace in lttv on my computer.
> >
> > --
> > Regards,
> > Murali
>
> --
>  Mathieu Desnoyers
> Operating System Efficiency R&D Consultant
> EfficiOS Inc.
> http://www.efficios.com
>



-- 
Regards,
Murali
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