Re: [PATCH 8/8] perf, tools, test: Add test case for alias and JSON parsing

[Andi Kleen]

> I think the problem is in parse_events_fixup, which assumes
> the 'cpu' pmu globaly for all events

I investigated this now. The problem is that the event is listed,
but cannot be set up. I saw it also with 'data_writes' on another
system. 

That's a generic problem, the test just exposes it. It's a side effect
of the fragile kernel->user interface in perf and likely hard to fix.

The only thing I can do is to ignore failures here and only
print messages.

-Andi
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