From 63c2a334ca2d1c13f8f6d424ff5ebdc2c166ce63 Mon Sep 17 00:00:00 2001
From: "Daniel P. Berrange" <berrange@redhat.com>
Date: Fri, 13 Sep 2013 12:06:57 +0100
Subject: [PATCH] Free coroutine stack when releasing coroutine

For

  https://bugzilla.redhat.com/show_bug.cgi?id=1007837

The coroutine_init function mmap's a stack for the
ucontext coroutine, but nothing ever munmaps it.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
(cherry picked from commit 49fbd957cb686ff3f9c31923ff17a9529edd9c13)
---
 src/coroutine_ucontext.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/coroutine_ucontext.c b/src/coroutine_ucontext.c
index 848016e..8fe650e 100644
--- a/src/coroutine_ucontext.c
+++ b/src/coroutine_ucontext.c
@@ -42,6 +42,8 @@ static int _coroutine_release(struct continuation *cc)
             return ret;
     }
 
+    munmap(co->cc.stack, co->cc.stack_size);
+
     co->caller = NULL;
 
     return 0;