Re: [PATCH] perf record: Change error message on failure

From: Ingo Molnar
Date: Thu Sep 13 2012 - 11:07:40 EST

* Robert Richter <robert.richter@xxxxxxx> wrote:

> Only report
> No CONFIG_PERF_EVENTS=y kernel support configured?
> if the syscall fails with ENOSYS. In other cases CONFIG_PERF_EVENTS is
> set and might confuse users. The default message is now:
> Not all events could be opened.

Indeed, and it would be nice to be even less passive-aggressive
and figure out and display the exact error condition?


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