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Subject: [OMPI users] [PATCH] hooks: disable malloc override inside of Gentoo sandbox
From: Justin Bronder (jsbronder_at_[hidden])
Date: 2013-07-01 23:06:16


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..ce91e76 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_PID.
+    */
+
     if (getenv("FAKEROOTKEY") != NULL ||
-        getenv("FAKED_MODE") != NULL) {
+        getenv("FAKED_MODE") != NULL ||
+        getenv("SANDBOX_PID") != NULL ) {
         return;
     }
 
-- 
1.8.1.5
-- 
Justin Bronder