gentoo-overlay/sys-cluster/openmpi/files/hooks-disable-malloc-override-inside-of-Gentoo-sandb.patch

From 3bd5897c7ca8ab61fb024957aeae891e204b3e3f Mon Sep 17 00:00:00 2001
From: Justin Bronder <jsbronder@gmail.com>
Date: Mon, 1 Jul 2013 20:37:17 -0400
Subject: [PATCH] hooks:  disable malloc override inside of Gentoo sandbox

As described in the comments in the source, Gentoo's own version of
fakeroot, sandbox, also runs into hangs when malloc is overridden.
Sandbox environments can easily be detected by looking for SANDBOX_PID
in the environment.  When detected, employ the same fix used for
fakeroot.

See https://bugs.gentoo.org/show_bug.cgi?id=462602
---
 opal/mca/memory/linux/hooks.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/opal/mca/memory/linux/hooks.c b/opal/mca/memory/linux/hooks.c
index 6a1646f..5ded08c 100644
--- a/opal/mca/memory/linux/hooks.c
+++ b/opal/mca/memory/linux/hooks.c
@@ -747,9 +747,16 @@ static void opal_memory_linux_malloc_init_hook(void)
        "fakeroot" build environment that allocates memory during
        stat() (see http://bugs.debian.org/531522).  It may not be
        necessary any more since we're using access(), not stat().  But
-       we'll leave the check, anyway. */
+       we'll leave the check, anyway.
+
+       This is also an issue when using Gentoo's version of 'fakeroot',
+       sandbox v2.5.  Sandbox environments can also be detected fairly
+       easily by looking for SANDBOX_ON.
+    */
+
     if (getenv("FAKEROOTKEY") != NULL ||
-        getenv("FAKED_MODE") != NULL) {
+        getenv("FAKED_MODE") != NULL ||
+        getenv("SANDBOX_ON") != NULL ) {
         return;
     }
 
-- 
1.8.1.5