--- ./top/top.c.orig	2021-02-09 10:11:25.000000000 +0000
+++ ./top/top.c	2021-05-07 05:35:17.936501694 +0000
@@ -2504,7 +2504,7 @@
       (sorry Linux, but you'll have to close it for us) */
    if (!fp) {
       if (!(fp = fopen("/proc/stat", "r")))
-         error_exit(fmtmk(N_fmt(FAIL_statopn_fmt), strerror(errno)));
+         return;
       /* note: we allocate one more CPU_t via totSLOT than 'cpus' so that a
                slot can hold tics representing the /proc/stat cpu summary */
       Cpu_tics = alloc_c(totSLOT * sizeof(CPU_t));
@@ -4389,7 +4389,7 @@
       tmptty.c_cc[VERASE] = *key_backspace;
 #ifdef TERMIOS_ONLY
    if (-1 == tcsetattr(STDIN_FILENO, TCSAFLUSH, &tmptty))
-      error_exit(fmtmk(N_fmt(FAIL_tty_set_fmt), strerror(errno)));
+      {}
    tcgetattr(STDIN_FILENO, &Tty_tweaked);
 #endif
    // lastly, a nearly raw mode for unsolicited single keystrokes
@@ -4397,7 +4397,7 @@
    tmptty.c_cc[VMIN] = 1;
    tmptty.c_cc[VTIME] = 0;
    if (-1 == tcsetattr(STDIN_FILENO, TCSAFLUSH, &tmptty))
-      error_exit(fmtmk(N_fmt(FAIL_tty_set_fmt), strerror(errno)));
+      {}
    tcgetattr(STDIN_FILENO, &Tty_raw);
 
 #ifndef OFF_STDIOLBF
@@ -5969,7 +5969,7 @@
 
       if (!Numa_node_tot) goto numa_nope;
 
-      if (CHKw(w, View_CPUNOD)) {
+      if (Cpu_tics && CHKw(w, View_CPUNOD)) {
          if (Numa_node_sel < 0) {
             // display the 1st /proc/stat line, then the nodes (if room)
             Msg_row += cpu_tics(&Cpu_tics[smp_num_cpus], N_txt(WORD_allcpus_txt), 1);
@@ -6004,10 +6004,10 @@
          }
       } else
 numa_nope:
-      if (CHKw(w, View_CPUSUM)) {
+      if (Cpu_tics && CHKw(w, View_CPUSUM)) {
          // display just the 1st /proc/stat line
          Msg_row += cpu_tics(&Cpu_tics[smp_num_cpus], N_txt(WORD_allcpus_txt), 1);
-      } else {
+      } else if (Cpu_tics) {
          // display each cpu's states separately, screen height permitting...
          if (w->rc.combine_cpus) {
             for (i = 0; i < Cpu_faux_tot; i++) {