diff --git a/src/ca/client/access.cpp b/src/ca/client/access.cpp
index a36899c02..ec873dd5b 100644
--- a/src/ca/client/access.cpp
+++ b/src/ca/client/access.cpp
@@ -605,7 +605,7 @@ void epicsShareAPI ca_signal_formated ( long ca_status, const char *pfilenm,
     }
     else {
         fprintf ( stderr, "CA exception in thread w/o CA ctx: status=%s file=%s line=%d: \n",
-            ca_message ( ca_status ), pfilenm, lineno );
+            ca_message ( ca_status ), pfilenm ? pfilenm : "<null>", lineno );
         if ( pFormat ) {
             vfprintf ( stderr, pFormat, theArgs );
         }
diff --git a/src/ca/client/tools/cainfo.c b/src/ca/client/tools/cainfo.c
index fc18ccd3f..b12a30aac 100644
--- a/src/ca/client/tools/cainfo.c
+++ b/src/ca/client/tools/cainfo.c
@@ -157,7 +157,7 @@ int main (int argc, char *argv[])
             }
             break;
         case 's':               /* ca_client_status interest level */
-            if (sscanf(optarg,"%du", &statLevel) != 1)
+            if (sscanf(optarg,"%u", &statLevel) != 1)
             {
                 fprintf(stderr, "'%s' is not a valid interest level "
                         "- ignored. ('cainfo -h' for help.)\n", optarg);
diff --git a/src/ca/client/tools/camonitor.c b/src/ca/client/tools/camonitor.c
index 6799182be..1493a1888 100644
--- a/src/ca/client/tools/camonitor.c
+++ b/src/ca/client/tools/camonitor.c
@@ -258,7 +258,7 @@ int main (int argc, char *argv[])
             }
             break;
         case '#':               /* Array count */
-            if (sscanf(optarg,"%ld", &reqElems) != 1)
+            if (sscanf(optarg,"%lu", &reqElems) != 1)
             {
                 fprintf(stderr, "'%s' is not a valid array element count "
                         "- ignored. ('camonitor -h' for help.)\n", optarg);
diff --git a/src/ca/client/tools/caput.c b/src/ca/client/tools/caput.c
index 79ffef8c3..8f88c5398 100644
--- a/src/ca/client/tools/caput.c
+++ b/src/ca/client/tools/caput.c
@@ -437,6 +437,7 @@ int main (int argc, char *argv[])
     dbuf = calloc (count, sizeof(double));
     if(!sbuf || !dbuf) {
         fprintf(stderr, "Memory allocation failed\n");
+        free(sbuf); free(dbuf);
         return 1;
     }
 
@@ -450,6 +451,7 @@ int main (int argc, char *argv[])
         result = ca_pend_io(caTimeout);
         if (result == ECA_TIMEOUT) {
             fprintf(stderr, "Read operation timed out: ENUM data was not read.\n");
+            free(sbuf); free(dbuf);
             return 1;
         }
 
@@ -460,6 +462,7 @@ int main (int argc, char *argv[])
                 if (*(argv+optind+i) == pend) { /* Conversion didn't work */
                     fprintf(stderr, "Enum index value '%s' is not a number.\n",
                             *(argv+optind+i));
+                    free(sbuf); free(dbuf);
                     return 1;
                 }
                 if (dbuf[i] >= bufGrEnum.no_str) {
@@ -486,6 +489,7 @@ int main (int argc, char *argv[])
                     dbuf[i] = epicsStrtod(sbuf[i], &pend);
                     if (sbuf[i] == pend || enumAsString) {
                         fprintf(stderr, "Enum string value '%s' invalid.\n", sbuf[i]);
+                        free(sbuf); free(dbuf);
                         return 1;
                     }
                     if (dbuf[i] >= bufGrEnum.no_str) {
@@ -503,6 +507,7 @@ int main (int argc, char *argv[])
             ebuf = calloc(len, sizeof(char));
             if(!ebuf) {
                 fprintf(stderr, "Memory allocation failed\n");
+                free(sbuf); free(dbuf); free(ebuf);
                 return 1;
             }
             count = epicsStrnRawFromEscaped(ebuf, len, cbuf, len-1) + 1;
@@ -537,12 +542,14 @@ int main (int argc, char *argv[])
     }
     if (result != ECA_NORMAL) {
         fprintf(stderr, "Error from put operation: %s\n", ca_message(result));
+        free(sbuf); free(dbuf); free(ebuf);
         return 1;
     }
 
     result = ca_pend_io(caTimeout);
     if (result == ECA_TIMEOUT) {
         fprintf(stderr, "Write operation timed out: Data was not written.\n");
+        free(sbuf); free(dbuf); free(ebuf);
         return 1;
     }
     if (request == callback) {   /* Also wait for callbacks */
@@ -556,6 +563,7 @@ int main (int argc, char *argv[])
 
     if (result != ECA_NORMAL) {
         fprintf(stderr, "Error occured writing data: %s\n", ca_message(result));
+        free(sbuf); free(dbuf); free(ebuf);
         return 1;
     }
 
@@ -567,6 +575,7 @@ int main (int argc, char *argv[])
 
                                 /* Shut down Channel Access */
     ca_context_destroy();
+    free(sbuf); free(dbuf); free(ebuf);
 
     return result;
 }
diff --git a/src/ioc/db/dbChannel.c b/src/ioc/db/dbChannel.c
index 399d13dab..a6fd64450 100644
--- a/src/ioc/db/dbChannel.c
+++ b/src/ioc/db/dbChannel.c
@@ -38,6 +38,7 @@
 #include "link.h"
 #include "recSup.h"
 #include "special.h"
+#include "alarm.h"
 
 typedef struct parseContext {
     dbChannel *chan;
@@ -619,6 +620,11 @@ long dbChannelOpen(dbChannel *chan)
     probe.field_type  = dbChannelExportType(chan);
     probe.no_elements = dbChannelElements(chan);
     probe.field_size  = dbChannelFieldSize(chan);
+    probe.sevr = NO_ALARM;
+    probe.stat = NO_ALARM;
+    probe.time.secPastEpoch = 0;
+    probe.time.nsec = 0;
+
     p = probe;
 
     /*
diff --git a/src/ioc/db/recGbl.c b/src/ioc/db/recGbl.c
index 6406b3773..29b7c19ed 100644
--- a/src/ioc/db/recGbl.c
+++ b/src/ioc/db/recGbl.c
@@ -67,7 +67,7 @@ void recGblDbaddrError(long status, const struct dbAddr *paddr,
     errPrintf(status,0,0,
         "PV: %s.%s "
         "error detected in routine: %s\n",
-        (paddr ? precord->name : "Unknown"),
+        (precord ? precord->name : "Unknown"),
         (pdbFldDes ? pdbFldDes->name : ""),
         (pmessage ? pmessage : "Unknown"));
     return;
@@ -104,7 +104,7 @@ void recGblRecSupError(long status, const struct dbAddr *paddr,
         " %s\n",
         (psupport_name ? psupport_name : "Unknown"),
         (pdbRecordType ? pdbRecordType->name : "Unknown"),
-        (paddr ? precord->name : "Unknown"),
+        (precord ? precord->name : "Unknown"),
         (pdbFldDes ? pdbFldDes->name : ""),
         (pmessage ? pmessage : ""));
     return;
diff --git a/src/libCom/cxxTemplates/test/tsSLListTest.cc b/src/libCom/cxxTemplates/test/tsSLListTest.cc
index 32f96359d..311ffee49 100644
--- a/src/libCom/cxxTemplates/test/tsSLListTest.cc
+++ b/src/libCom/cxxTemplates/test/tsSLListTest.cc
@@ -46,6 +46,10 @@ int main ()
         tsSLIter<fred> iter1 = list.firstIter ();
 		tsSLIter<fred> iter2 = iter1;
 		tsSLIter<fred> iter3 = iter1;
+		tsSLIter<fred> itert = iter3++
+		assert ( iter1 == itert );
+		itert = ++iter2;
+		assert ( iter3 == itert );
 		assert ( iter1 == iter3++ );
 		assert ( iter3 == ++iter2 );
         list.remove ( *pFredII ); // removes pFred
diff --git a/src/libCom/flex/misc.c b/src/libCom/flex/misc.c
index b8a7a0399..b41668f3a 100644
--- a/src/libCom/flex/misc.c
+++ b/src/libCom/flex/misc.c
@@ -438,7 +438,7 @@ int htoi(unsigned char *str)
 {
     int result;
 
-    (void) sscanf( (char *) str, "%x", &result );
+    (void) sscanf( (char *) str, "%x", (unsigned *) &result );
 
     return ( result );
     }
@@ -653,7 +653,7 @@ int otoi(Char *str)
 {
     int result;
 
-    (void) sscanf( (char *) str, "%o", &result );
+    (void) sscanf( (char *) str, "%o", (unsigned *) &result );
 
     return ( result );
     }
diff --git a/src/libCom/osi/os/WIN32/osdSock.c b/src/libCom/osi/os/WIN32/osdSock.c
index b8c8363fb..8b9869423 100644
--- a/src/libCom/osi/os/WIN32/osdSock.c
+++ b/src/libCom/osi/os/WIN32/osdSock.c
@@ -64,10 +64,10 @@ epicsShareFunc int epicsShareAPI osiSockAttach()
 		DWORD titleLength = GetConsoleTitle(title, sizeof(title));
 		if (titleLength) {
 			titleLength = strlen (title);
-			strncat (title, " " EPICS_VERSION_STRING, sizeof(title));
+			strncat (title, " " EPICS_VERSION_STRING, sizeof(title)-1);
 		}
 		else {
-			strncpy(title, EPICS_VERSION_STRING, sizeof(title));	
+			strncpy(title, EPICS_VERSION_STRING, sizeof(title)-1);	
 		}
 		title[sizeof(title)-1]= '\0';
 		SetConsoleTitle(title);
diff --git a/src/libCom/osi/os/default/osdNetIntf.c b/src/libCom/osi/os/default/osdNetIntf.c
index fbee6b03e..702660e15 100644
--- a/src/libCom/osi/os/default/osdNetIntf.c
+++ b/src/libCom/osi/os/default/osdNetIntf.c
@@ -207,7 +207,7 @@ epicsShareFunc void epicsShareAPI osiSockDiscoverBroadcastAddresses
                 pNewNode->addr.sa = pIfreqList->ifr_broadaddr;
                 ifDepenDebugPrintf ( ( "found broadcast addr = %x\n", ntohl ( baddr.ia.sin_addr.s_addr ) ) );
             } else {
-                ifDepenDebugPrintf ( ( "Ignoring broadcast addr = \n", ntohl ( baddr.ia.sin_addr.s_addr ) ) );
+                ifDepenDebugPrintf ( ( "Ignoring broadcast addr = %x\n", ntohl ( baddr.ia.sin_addr.s_addr ) ) );
                 free ( pNewNode );
                 continue;
             }
diff --git a/src/libCom/osi/os/default/osdThreadHooks.c b/src/libCom/osi/os/default/osdThreadHooks.c
index cbe28a4ff..3c2f49667 100644
--- a/src/libCom/osi/os/default/osdThreadHooks.c
+++ b/src/libCom/osi/os/default/osdThreadHooks.c
@@ -72,6 +72,7 @@ epicsShareFunc int epicsThreadHookAdd(EPICS_THREAD_HOOK_ROUTINE hook)
         return 0;
     }
     fprintf(stderr, "epicsThreadHookAdd: Locking problem\n");
+    free(pHook);
     return -1;
 }
 
diff --git a/src/libCom/osi/os/vxWorks/osdThread.c b/src/libCom/osi/os/vxWorks/osdThread.c
index ce01ea609..cc8a1a539 100644
--- a/src/libCom/osi/os/vxWorks/osdThread.c
+++ b/src/libCom/osi/os/vxWorks/osdThread.c
@@ -348,8 +348,9 @@ epicsShareFunc void epicsThreadMap ( EPICS_THREAD_HOOK_ROUTINE func )
     while (noTasks == 0) {
         noTasks = taskIdListGet(taskIdList, taskIdListSize);
         if (noTasks == taskIdListSize) {
-            taskIdList = realloc(taskIdList, (taskIdListSize+ID_LIST_CHUNK)*sizeof(int));
-            assert(taskIdList);
+            int *newlist = realloc(taskIdList, (taskIdListSize+ID_LIST_CHUNK)*sizeof(int));
+            assert(newlist);
+            taskIdList = newlist;
             taskIdListSize += ID_LIST_CHUNK;
             noTasks = 0;
         }