diff -uprN psm-3.3_raw/psm_utils.c psm-3.3/psm_utils.c
--- psm-3.3_raw/psm_utils.c	2014-08-21 04:00:18.000000000 +0800
+++ psm-3.3/psm_utils.c		2020-03-13 21:21:12.018263242 +0800
@@ -955,7 +955,7 @@ psmi_faultinj_getspec(char *spec_name, i
 	union psmi_envvar_val env_fi;
 	char fvals_str[128];
 	char fname[128];
-	char fdesc[256];
+	char fdesc[512];
 
 	snprintf(fvals_str, sizeof fvals_str - 1, "%d:%d:1", num, denom);
 	fvals_str[sizeof fvals_str - 1] = '\0';