Merge lp:~akopytov/percona-xtradb-cluster/addendum_bug1382797-5.5 into lp:percona-xtradb-cluster/5.5

[Alexey Kopytov]

[Alexey Kopytov (akopytov)]

review: Approve

=== modified file 'sql/wsrep_utils.cc'
--- sql/wsrep_utils.cc	2014-12-08 16:17:14 +0000
+++ sql/wsrep_utils.cc	2015-02-27 07:35:21 +0000
@@ -173,6 +173,17 @@
     }
 #endif
 
+    /* Reset the process signal mask to unblock signals blocked by the server */
+
+    sigset_t set;
+    (void) sigemptyset(&set);
+
+    if (sigprocmask(SIG_SETMASK, &set, NULL))
+    {
+      sql_perror("sigprocmask() failed");
+      _exit(EXIT_FAILURE);
+    }
+
     /* Reset all ignored signals to SIG_DFL */
 
     memset(&sa, 0, sizeof(sa));