From 1595b257df98b361d178b3ce3e4ca5ac463be0cd Mon Sep 17 00:00:00 2001
From: Daniel <dkozovsk@redhat.com>
Date: Thu, 26 Jul 2018 15:39:12 +0200
Subject: [PATCH] void call of page_size guarantees that sysconf is not called
 from signal handler

---
 src/basic/sigbus.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/basic/sigbus.c b/src/basic/sigbus.c
index 70afba6bcf..d5254eab9d 100644
--- a/src/basic/sigbus.c
+++ b/src/basic/sigbus.c
@@ -113,6 +113,10 @@ void sigbus_install(void) {
                 .sa_flags = SA_SIGINFO,
         };
 
+        /* make sure that sysconf() is not called from a signal handler because
+        * it is not guaranteed to be async-signal-safe since POSIX.1-2008 */
+        (void) page_size();
+
         n_installed++;
 
         if (n_installed == 1)