Description Hans Petter Selasky 2015-06-03 16:11:07 UTC

Hi,

It has been observed that pmcstat can run out of buckets leading to an assert, when converting trace data into gprof compatible format. Applying the following patch, temporarily solves the problem:

diff --git a/usr.sbin/pmcstat/pmcpl_gprof.c b/usr.sbin/pmcstat/pmcpl_gprof.c
index 9ff78e8..4a8849f 100644
--- a/usr.sbin/pmcstat/pmcpl_gprof.c
+++ b/usr.sbin/pmcstat/pmcpl_gprof.c
@@ -445,8 +445,8 @@ pmcpl_gmon_process(struct pmcstat_process *pp, struct pmcstat_pmcrecord *pmcr,
                image, pmcid);
            pgf->pgf_pmcid = pmcid;
            assert(image->pi_end > image->pi_start);
-               pgf->pgf_nbuckets = (image->pi_end - image->pi_start) /
-                   FUNCTION_ALIGNMENT; /* see <machine/profile.h> */
+               pgf->pgf_nbuckets = (image->pi_end - image->pi_start); // /
+       //                  FUNCTION_ALIGNMENT; /* see <machine/profile.h> */
            pgf->pgf_ndatabytes = sizeof(struct gmonhdr) +
                pgf->pgf_nbuckets * sizeof(HISTCOUNTER);
            pgf->pgf_nsamples = 0; 

--HPS