[commit: ghc] ghc-7.10: users guide: Add note about #11108 to bugs section (2ee1e69)

[git at git.haskell.org]

Repository : ssh://git@git.haskell.org/ghc

On branch  : ghc-7.10
Link       : http://ghc.haskell.org/trac/ghc/changeset/2ee1e694b63846b179712ecd3aa019aea0a8b5cd/ghc

>---------------------------------------------------------------

commit 2ee1e694b63846b179712ecd3aa019aea0a8b5cd
Author: Ben Gamari <ben at smart-cactus.org>
Date:   Thu Nov 26 00:21:13 2015 +0100

    users guide: Add note about #11108 to bugs section


>---------------------------------------------------------------

2ee1e694b63846b179712ecd3aa019aea0a8b5cd
 docs/users_guide/bugs.xml | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/docs/users_guide/bugs.xml b/docs/users_guide/bugs.xml
index 3eb5304..858291f 100644
--- a/docs/users_guide/bugs.xml
+++ b/docs/users_guide/bugs.xml
@@ -564,6 +564,14 @@ checking for duplicates.  The reason for this is efficiency, pure and simple.
         </para>
       </listitem>
 
+      <listitem>
+        <para>There is known to be maleficent interactions between weak
+        references and laziness. Particularly, it has been observed that placing a thunk
+        containing a reference to a weak reference inside of another weak reference may
+        cause runtime crashes. See <ulink
+        href="https://ghc.haskell.org/trac/ghc/ticket/11108">Trac #11108</ulink>
+        for details.</para>
+      </listitem>
     </itemizedlist>
   </sect2>