* Murali S R ([email protected]) wrote: > On Thu, Apr 28, 2011 at 6:01 PM, Mathieu Desnoyers < > [email protected]> wrote: > > > * Murali S R ([email protected]) 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.org website > > 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 > > > [email protected] > > > 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 _______________________________________________ ltt-dev mailing list [email protected] http://lists.casi.polymtl.ca/cgi-bin/mailman/listinfo/ltt-dev
