diff --git a/poky/meta/recipes-kernel/perf/perf.bb b/poky/meta/recipes-kernel/perf/perf.bb
index adefc44..603d3f9 100644
--- a/poky/meta/recipes-kernel/perf/perf.bb
+++ b/poky/meta/recipes-kernel/perf/perf.bb
@@ -228,6 +228,12 @@
         sed -i -e 's,$(call get-executable-or-default\,PYTHON\,$(PYTHON_AUTO)),$(notdir $(call get-executable-or-default\,PYTHON\,$(PYTHON_AUTO))),g' \
             ${S}/tools/perf/Makefile.config
 
+	# likewise with this substitution. Kernels with commit 18f2967418d031a39
+	# [perf tools: Use Python devtools for version autodetection rather than runtime]
+	# need this substitution for reproducibility.
+	sed -i -e 's,$(call get-executable-or-default\,PYTHON\,$(subst -config\,\,$(PYTHON_AUTO))),$(notdir $(call get-executable-or-default\,PYTHON\,$(subst -config\,\,$(PYTHON_AUTO)))),g' \
+	    ${S}/tools/perf/Makefile.config
+
         # The following line:
         #     srcdir_SQ = $(patsubst %tools/perf,tools/perf,$(subst ','\'',$(srcdir))),
         # Captures the full src path of perf, which of course makes it not
diff --git a/poky/meta/recipes-kernel/perf/perf/sort-pmuevents.py b/poky/meta/recipes-kernel/perf/perf/sort-pmuevents.py
index 09ba332..0362f2d 100755
--- a/poky/meta/recipes-kernel/perf/perf/sort-pmuevents.py
+++ b/poky/meta/recipes-kernel/perf/perf/sort-pmuevents.py
@@ -62,7 +62,10 @@
             #print( "    name found: %s" % name.group(1) )
             entry_dict[struct[2]]['fields'][name.group(1)] = entry
 
-        if not entry_dict[struct[2]]['fields']:
+        # unmatched entries are most likely array terminators and
+        # should end up as the last element in the sorted list, which
+        # is achieved by using '0' as the key
+        if not cpuid and not name:
             entry_dict[struct[2]]['fields']['0'] = entry
 
 # created ordered dictionaries from the captured values. These are ordered by