perf tool or oprofile on Pandaboard? (hardware counters)

[kdar]

Was anyone able to get perf tool or oprofile working on Pandaboard (to collect hardware counters)?

I have tried several Linaro builds of Ubuntu and still unable to correctly run perf tool (I tried several kernel versions and several releases of Linaro).

The only kernel version that was able to run perf somewhat was 3.1, however the results which it produced on longer executions were incorrect (I believe it was only displaying overflows values for several events, for example for number of instructions executed).

Otherwise... (if I used any othr kernel version) I am getting following error:
$this->bbcode_second_pass_code('', 'root@linaro-ubuntu-desktop:~# perf stat sleep 1
Error: open_counter returned with 19 (No such device). /bin/dmesg may provide additional information.

Fatal: Not all events could be opened.
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