Pull in patch to avoid division-by-0.

papi-divzero.patch

@@ -0,0 +1,43 @@
+commit 7a6ae407b62615d3ffa9b0d2ac17771b7fc63056
+Author: Vince Weaver <vince@deater.net>
+Date:   Thu Sep 27 23:47:58 2018 -0400
+
+    perf_event: avoid floating point exception if running is 0
+    
+    The perf_event interface isn't supposed to return 0 for running, but
+    it happens occasionally.  So be sure not to divide by zero if this
+    happens.  This makes the rdpmc code match the generic perf code in this
+    case.
+    
+    This is in response to bitbucket issue #52
+
+diff --git a/src/components/perf_event/perf_event.c b/src/components/perf_event/perf_event.c
+index 7fd753ed..82b7d398 100644
+--- a/src/components/perf_event/perf_event.c
++++ b/src/components/perf_event/perf_event.c
+@@ -1099,14 +1099,23 @@ _pe_rdpmc_read( hwd_context_t *ctx, hwd_control_state_t *ctl,
+ 		count = mmap_read_self(pe_ctl->events[i].mmap_buf,
+ 						&enabled,&running);
+ 
+-		/* TODO: error checking? */
++		/* TODO: more error checking? */
+ 
+ 		/* Handle multiplexing case */
+-		if (enabled!=running) {
++		if (enabled == running) {
++			/* no adjustment needed */
++		}
++		else if (enabled && running) {
+ 			adjusted = (enabled * 128LL) / running;
+ 			adjusted = adjusted * count;
+ 			adjusted = adjusted / 128LL;
+ 			count = adjusted;
++		} else {
++			/* This should not happen, but we have had it reported */
++			SUBDBG("perf_event kernel bug(?) count, enabled, "
++				"running: %lld, %lld, %lld\n",
++				papi_pe_buffer[0],enabled,running);
++
+ 		}
+ 
+ 		pe_ctl->counts[i] = count;

papi.spec

@@ -8,13 +8,14 @@
 Summary: Performance Application Programming Interface
 Name: papi
 Version: 5.6.0
-Release: 7%{?dist}
+Release: 8%{?dist}
 License: BSD
 Group: Development/System
 Requires: papi-libs = %{version}-%{release}
 URL: http://icl.cs.utk.edu/papi/
 Source0: http://icl.cs.utk.edu/projects/papi/downloads/%{name}-%{version}.tar.gz
 Patch1: papi-ldflags.patch
+Patch2: papi-divzero.patch
 BuildRequires: autoconf
 BuildRequires: doxygen
 BuildRequires: ncurses-devel
@@ -77,6 +78,7 @@ the PAPI user-space libraries and interfaces.
 %prep
 %setup -q
 %patch1 -p1 -b .ldflags
+%patch2 -p1 -b .divzero
 
 %build
 %if %{without bundled_libpfm}
@@ -159,6 +161,9 @@ chrpath --delete $RPM_BUILD_ROOT%{_libdir}/*.so*
 %{_libdir}/*.a
 
 %changelog
+* Fri Nov 2 2018 Fedora Release Engineering <releng@fedoraproject.org> - 5.6.0-8
+- Pull in patch to avoid division-by-0.
+
 * Fri Jul 13 2018 Fedora Release Engineering <releng@fedoraproject.org> - 5.6.0-7
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_29_Mass_Rebuild