diff --git a/src/Makefile b/src/Makefile
index 269a70933..d6afa99b6 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -39,7 +39,7 @@ endif
 endif
 
 # To get ARM stack traces if Redis crashes we need a special C flag.
-ifneq (,$(findstring armv,$(uname_M)))
+ifneq (,$(filter aarch64 armv,$(uname_M)))
         CFLAGS+=-funwind-tables
 endif
 
diff --git a/src/debug.c b/src/debug.c
index 293dbe36e..f239eea5a 100644
--- a/src/debug.c
+++ b/src/debug.c
@@ -688,6 +688,8 @@ static void *getMcontextEip(ucontext_t *uc) {
     return (void*) uc->uc_mcontext.sc_ip;
     #elif defined(__arm__) /* Linux ARM */
     return (void*) uc->uc_mcontext.arm_pc;
+    #elif defined(__aarch64__) /* Linux AArch64 */
+    return (void*) uc->uc_mcontext.pc;
     #endif
 #else
     return NULL;
diff --git a/src/redis-cli.c b/src/redis-cli.c
index 850b10241..d106d8f5d 100644
--- a/src/redis-cli.c
+++ b/src/redis-cli.c
@@ -1058,7 +1058,7 @@ static int cliReadReply(int output_raw_strings) {
     return REDIS_OK;
 }
 
-static int cliSendCommand(int argc, char **argv, int repeat) {
+static int cliSendCommand(int argc, char **argv, long repeat) {
     char *command = argv[0];
     size_t *argvlen;
     int j, output_raw;
@@ -1121,7 +1121,7 @@ static int cliSendCommand(int argc, char **argv, int repeat) {
     for (j = 0; j < argc; j++)
         argvlen[j] = sdslen(argv[j]);
 
-    while(repeat--) {
+    while(repeat-- > 0) {
         redisAppendCommandArgv(context,argc,(const char**)argv,argvlen);
         while (config.monitor_mode) {
             if (cliReadReply(output_raw) != REDIS_OK) exit(1);
@@ -1229,6 +1229,7 @@ static int parseOptions(int argc, char **argv) {
         } else if (!strcmp(argv[i],"-n") && !lastarg) {
             config.dbnum = atoi(argv[++i]);
         } else if (!strcmp(argv[i],"-a") && !lastarg) {
+            fputs("Warning: Using a password with '-a' option on the command line interface may not be safe.\n", stderr);
             config.auth = argv[++i];
         } else if (!strcmp(argv[i],"-u") && !lastarg) {
             parseRedisUri(argv[++i]);
@@ -1621,9 +1622,35 @@ static void repl(void) {
     cliRefreshPrompt();
     while((line = linenoise(context ? config.prompt : "not connected> ")) != NULL) {
         if (line[0] != '\0') {
+            long repeat = 1;
+            int skipargs = 0;
+            char *endptr = NULL;
+
             argv = cliSplitArgs(line,&argc);
-            if (history) linenoiseHistoryAdd(line);
-            if (historyfile) linenoiseHistorySave(historyfile);
+
+            /* check if we have a repeat command option and
+             * need to skip the first arg */
+            if (argv && argc > 0) {
+                errno = 0;
+                repeat = strtol(argv[0], &endptr, 10);
+                if (argc > 1 && *endptr == '\0') {
+                    if (errno == ERANGE || errno == EINVAL || repeat <= 0) {
+                        fputs("Invalid redis-cli repeat command option value.\n", stdout);
+                        sdsfreesplitres(argv, argc);
+                        linenoiseFree(line);
+                        continue;
+                    }
+                    skipargs = 1;
+                } else {
+                    repeat = 1;
+                }
+            }
+
+            /* Won't save auth command in history file */
+            if (!(argv && argc > 0 && !strcasecmp(argv[0+skipargs], "auth"))) {
+                if (history) linenoiseHistoryAdd(line);
+                if (historyfile) linenoiseHistorySave(historyfile);
+            }
 
             if (argv == NULL) {
                 printf("Invalid argument(s)\n");
@@ -1636,6 +1663,8 @@ static void repl(void) {
                     exit(0);
                 } else if (argv[0][0] == ':') {
                     cliSetPreferences(argv,argc,1);
+                    sdsfreesplitres(argv,argc);
+                    linenoiseFree(line);
                     continue;
                 } else if (strcasecmp(argv[0],"restart") == 0) {
                     if (config.eval) {
@@ -1655,15 +1684,6 @@ static void repl(void) {
                     linenoiseClearScreen();
                 } else {
                     long long start_time = mstime(), elapsed;
-                    int repeat, skipargs = 0;
-                    char *endptr;
-
-                    repeat = strtol(argv[0], &endptr, 10);
-                    if (argc > 1 && *endptr == '\0' && repeat) {
-                        skipargs = 1;
-                    } else {
-                        repeat = 1;
-                    }
 
                     issueCommandRepeat(argc-skipargs, argv+skipargs, repeat);
 
diff --git a/src/t_stream.c b/src/t_stream.c
index 1e46c6367..8f0505c30 100644
--- a/src/t_stream.c
+++ b/src/t_stream.c
@@ -1073,7 +1073,7 @@ void xaddCommand(client *c) {
     int field_pos = i+1;
 
     /* Check arity. */
-    if ((c->argc - field_pos) < 2 || (c->argc-field_pos % 2) == 1) {
+    if ((c->argc - field_pos) < 2 || ((c->argc-field_pos) % 2) == 1) {
         addReplyError(c,"wrong number of arguments for XADD");
         return;
     }