On Sun, May 20, 2012 at 11:19 AM, Rui DaCosta <ruidc@yahoo.com> wrote:
>
> Sure and thanks,
> (v1.13 worked fine btw)
> Processor       : Feroceon 88FR131 rev 1 (v5l)
> BogoMIPS        : 1191.11
> Features        : swp half thumb fastmult edsp
> CPU implementer : 0x56
> CPU architecture: 5TE
> CPU variant     : 0x2
> CPU part        : 0x131
> CPU revision    : 1
>
> Hardware        : Marvell SheevaPlug Reference Board
> Revision        : 0000
> Serial          : 0000000000000000

Here perf is trying to open this file:
/sys/kernel/debug/tracing/events/power/cpu_frequency/id
with the old version it was:
/sys/kernel/debug/tracing/events/vfs/dirty_inode/id
(which doesn't exist here anymore)

Could you please look which files of those two exist on your arm device?

Greetings,
    Tom