* Arnaldo Carvalho de Melo <a...@ghostprotocols.net> wrote:
> Em Wed, Sep 11, 2013 at 07:55:03AM +0200, Ingo Molnar escreveu:
> > 16645 perf_event_open(0x1eb7f00, 0xffffffff, 0, 0xffffffff, 0) = -1 EINVAL
> > (Invalid argument)
> >
> > Caused by:
> >
> > 575a9aab0f85 perf tools: Add attr->mmap2 support
> >
> > We must not force mmap2 support to be present on the kernel side - new
> > perf top should work on older kernels just as well.
> >
> > So I've unpulled the tree for now.
>
> yeah, I noticed this late yesterday, made it to work like the fallback
> for perf_event_attr.{sample_id_all,exclude_{guest,host}} and folded that
> into Stephane's patch, with a committer note, to keep things bisectable.
>
> Can you please do a test pull with the updated branch + tag below? If
> you prefer me to do the whole dance and send a regular pull request,
> please let me now.
Pulled, thanks a lot Arnaldo! 'perf top' works fine here now on older
kernels as well.
Ingo
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