3 files changed, 38 insertions, 8 deletions
diff --git a/erts/emulator/sys/unix/erl_unix_sys.h b/erts/emulator/sys/unix/erl_unix_sys.h
index b64b0d87f6..054a4678c8 100644
--- a/erts/emulator/sys/unix/erl_unix_sys.h
+++ b/erts/emulator/sys/unix/erl_unix_sys.h
@@ -322,6 +322,7 @@ extern SIGFUNC sys_signal(int, SIGFUNC);
 extern void sys_sigrelease(int);
 extern void sys_sigblock(int);
 extern void sys_init_suspend_handler(void);
+extern void erts_sys_unix_later_init(void);
 
 /*
  * Handling of floating point exceptions.
diff --git a/erts/emulator/sys/unix/sys.c b/erts/emulator/sys/unix/sys.c
index 6459fa064b..de8481b206 100644
--- a/erts/emulator/sys/unix/sys.c
+++ b/erts/emulator/sys/unix/sys.c
@@ -148,11 +148,18 @@ volatile int erts_break_requested = 0;
 #define ERTS_SET_BREAK_REQUESTED (erts_break_requested = 1)
 #define ERTS_UNSET_BREAK_REQUESTED (erts_break_requested = 0)
 #endif
+
+#ifndef ERTS_SMP
+volatile Uint erts_signal_sigterm = 0;
+#define ERTS_SET_SIGNAL_SIGTERM (erts_signal_sigterm = 1)
+#define ERTS_CLEAR_SIGNAL_SIGTERM (erts_signal_sigterm = 0)
+#endif
+
 /* set early so the break handler has access to initial mode */
 static struct termios initial_tty_mode;
 static int replace_intr = 0;
 /* assume yes initially, ttsl_init will clear it */
-int using_oldshell = 1; 
+int using_oldshell = 1;
 
 #ifdef ERTS_ENABLE_KERNEL_POLL
 
@@ -684,11 +691,11 @@ static RETSIGTYPE request_stop(int signum)
 #ifdef ERTS_SMP
     smp_sig_notify('S');
 #else
-    stop_requested();
+    ERTS_SET_SIGNAL_SIGTERM;
+    ERTS_CHK_IO_AS_INTR();
 #endif
 }
 
-
 static ERTS_INLINE void
 sigusr1_exit(void)
 {
@@ -784,10 +791,14 @@ static RETSIGTYPE do_quit(int signum)
 
 /* Disable break */
 void erts_set_ignore_break(void) {
-    sys_signal(SIGINT,  SIG_IGN);
-    sys_signal(SIGTERM, SIG_IGN);
-    sys_signal(SIGQUIT, SIG_IGN);
-    sys_signal(SIGTSTP, SIG_IGN);
+    /*
+     * Ignore signals that can be sent to the VM by
+     * typing certain key combinations at the
+     * controlling terminal...
+     */
+    sys_signal(SIGINT,  SIG_IGN);       /* Ctrl-C */
+    sys_signal(SIGQUIT, SIG_IGN);       /* Ctrl-\ */
+    sys_signal(SIGTSTP, SIG_IGN);       /* Ctrl-Z */
 }
 
 /* Don't use ctrl-c for break handler but let it be 
@@ -811,7 +822,6 @@ void erts_replace_intr(void) {
 void init_break_handler(void)
 {
    sys_signal(SIGINT, request_break);
-   sys_signal(SIGTERM, request_stop);
 #ifndef ETHR_UNUSABLE_SIGUSRX
    sys_signal(SIGUSR1, user_signal1);
 #endif /* #ifndef ETHR_UNUSABLE_SIGUSRX */
@@ -825,6 +835,17 @@ void sys_init_suspend_handler(void)
 #endif
 }
 
+void
+erts_sys_unix_later_init(void)
+{
+    char env[4];
+    size_t envsz = sizeof(env);
+    if (erts_sys_getenv_raw("ERL_ZZ_SIGTERM_KILL", env, &envsz) == 0)
+        if (envsz == 4 && sys_strncmp("true",env,4) == 0)
+            return;
+    sys_signal(SIGTERM, request_stop);
+}
+
 int sys_max_files(void)
 {
    return(max_files);
@@ -958,6 +979,13 @@ void erts_do_break_handling(void)
     erts_smp_thr_progress_unblock();
 }
 
+#ifdef ERTS_SIGNAL_SIGTERM
+void erts_handle_signal_sigterm(void) {
+    ERTS_CLEAR_SIGNAL_SIGTERM;
+    stop_requested();
+}
+#endif
+
 /* Fills in the systems representation of the jam/beam process identifier.
 ** The Pid is put in STRING representation in the supplied buffer,
 ** no interpretatione of this should be done by the rest of the
diff --git a/erts/emulator/sys/unix/sys_drivers.c b/erts/emulator/sys/unix/sys_drivers.c
index 400f163652..93cf64719a 100644
--- a/erts/emulator/sys/unix/sys_drivers.c
+++ b/erts/emulator/sys/unix/sys_drivers.c
@@ -204,6 +204,7 @@ erl_sys_late_init(void)
 #ifdef ERTS_SMP
     erts_mtx_unlock(port->lock);
 #endif
+    erts_sys_unix_later_init(); /* Need to be called after forker has been started */
 }
 
 /* II. Prototypes */