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30c806a094
If perf is run on a !CONFIG_PERF_COUNTER kernel right now it bails out with no messages or with confusing messages. Standardize this case some more and explain the situation. Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> LKML-Reference: <new-submission> Signed-off-by: Ingo Molnar <mingo@elte.hu>