https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=200616
Bug ID: 200616
Summary: pmcstat runs out of buckets
Product: Base System
Version: 11.0-CURRENT
Hardware: Any
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: kern
Assignee: [email protected]
Reporter: [email protected]
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
--
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