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    SubjectRe: [BUG] perf sched broken
    Em Wed, Jan 12, 2011 at 05:53:55PM -0800, Corey Ashford escreveu:
    > On 01/12/2011 01:29 AM, Stephane Eranian wrote:
    >> Hi,
    >>
    >> I am trying to use perf sched from tip-x86 but it fails for all my attempts.
    >>
    >> First of, I think the event list is stale. This is not so much the
    >> events themselves
    >> but rather the flags.
    >>
    >> Looks to me like the :r modifier is not supported anymore, so a patch like the
    >> one below is needed. That helps collect a trace. But then, you can dump
    >> the trace.
    >
    > After looking at this in more detail, I agree with Stephane: the 'r'
    > option appears to only be supported for hardware breakpoint events. My
    > patch just causes the 'r' to be properly processed and rejected as a
    > legal option.

    And thus broke 'perf sched' because it uses it, thanks to this
    discussion we figured out that 'perf sched' shouldn't be using it :)

    So thank you and Stephane, I'm applying his patch. That ':r' stuff makes
    no sense and I couldn't find it being parsed anywhere, historical
    bitrotted baggage it seems.

    Thanks a lot!

    - Arnaldo


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