[Bug 198149] [hwpmc] pmcstat -P -t (top mode, process sampling) stops after a while

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Thu May 7 19:59:05 UTC 2015


--- Comment #11 from John Baldwin <jhb at FreeBSD.org> ---
Created attachment 156477
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=156477&action=edit

I tried this change which would cause iaf_read_pmc() to return -2 in this case
instead of a large number.  I added some additional debugging so I could verify
this was being triggered in my testing.  It did seem to make things last
longer, but in at least one of my test runs I still saw pmcstat eventually stop
getting samples.

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