Avoid endless loop when handling fatal signal.

* src/emacs.c (terminate_due_to_signal): Move totally_unblock_input after
setting fatal_error_in_progress, so gobble_input and *read_socket are
not read if there are pending_signals.

2 files changed, 7 insertions, 1 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index 1126dde7450..dc33e417ef4 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,9 @@
+2015-02-20  Jan Djärv  <jan.h.d@swipnet.se>
+
+        * emacs.c (terminate_due_to_signal): Move totally_unblock_input after
+        setting fatal_error_in_progress, so gobble_input and *read_socket are
+        not read if there are pending_signals.
+
 2015-02-20  Paul Eggert  <eggert@cs.ucla.edu>
 
         Simplify binary I/O configuration
diff --git a/src/emacs.c b/src/emacs.c
index f933eb1443d..590579907ff 100644
--- a/src/emacs.c
+++ b/src/emacs.c
@@ -345,13 +345,13 @@ _Noreturn void
 terminate_due_to_signal (int sig, int backtrace_limit)
 {
   signal (sig, SIG_DFL);
-  totally_unblock_input ();
 
   /* If fatal error occurs in code below, avoid infinite recursion.  */
   if (! fatal_error_in_progress)
     {
       fatal_error_in_progress = 1;
 
+      totally_unblock_input ();
       if (sig == SIGTERM || sig == SIGHUP || sig == SIGINT)
         Fkill_emacs (make_number (sig));