diff --git a/plugins/carbon/carbon.c b/plugins/carbon/carbon.c
index 2d3023e0..2394499f 100644
--- a/plugins/carbon/carbon.c
+++ b/plugins/carbon/carbon.c
@@ -117,7 +117,7 @@ void carbon_master_cycle() {
 			if (rlen < 1) goto clear;
 			if (write(fd, ptr, rlen) <= 0) { uwsgi_error("write()"); goto clear;}
 
-			rlen = snprintf(ptr, 4096, "uwsgi.%s.%s.avg_rt %llu %llu\n", uwsgi.hostname, u_carbon.id, (unsigned long long ) total_avg_rt / avg_rt_workers, (unsigned long long ) uwsgi.current_time);
+			rlen = snprintf(ptr, 4096, "uwsgi.%s.%s.avg_rt %llu %llu\n", uwsgi.hostname, u_carbon.id, (unsigned long long ) avg_rt_workers ? total_avg_rt / avg_rt_workers : 0, (unsigned long long ) uwsgi.current_time);
 			if (rlen < 1) goto clear;
 			if (write(fd, ptr, rlen) <= 0) { uwsgi_error("write()"); goto clear;}
 
diff --git a/uwsgi.c b/uwsgi.c
index 6d689d81..20a206f8 100644
--- a/uwsgi.c
+++ b/uwsgi.c
@@ -1105,6 +1105,19 @@ void uwsgi_segfault(int signum) {
 	exit(1);
 }
 
+void uwsgi_fpe(int signum) {
+
+	uwsgi_log("!!! uWSGI process %d got Floating Point Exception !!!\n", (int) getpid());
+	uwsgi_backtrace(uwsgi.backtrace_depth);
+
+	// restore default handler to generate core
+	signal(signum, SIG_DFL);
+    	kill(getpid(), signum);
+
+	// never here...
+	exit(1);
+}
+
 
 #ifdef UWSGI_AS_SHARED_LIBRARY
 int uwsgi_init(int argc, char *argv[], char *envp[]) {
@@ -1142,6 +1155,7 @@ int main(int argc, char *argv[], char *envp[]) {
 	//char *optname;
 
 	signal(SIGSEGV, uwsgi_segfault);
+	signal(SIGFPE, uwsgi_fpe);
 	signal(SIGHUP, SIG_IGN);
 	signal(SIGTERM, SIG_IGN);
 	signal(SIGPIPE, SIG_IGN);