From a79858036130de6ca7cc712a89e6df2c93244685 Mon Sep 17 00:00:00 2001
From: wolf <wolf@0785d39b-7218-0410-832d-ea1e28bc413d>
Date: Fri, 24 Aug 2001 13:38:28 +0000
Subject: [PATCH] Fix a rather rare race condition in MT mode: we checked that
 we did not yet visit a face by looking at a value that is written when
 visiting this face. We double checked later when writing into it. In some
 rare conditions, it could happen that another process was working on it, but
 only wrote between the two checks, making the latter fail.

git-svn-id: https://svn.dealii.org/trunk@4910 0785d39b-7218-0410-832d-ea1e28bc413d
---
 deal.II/doc/news/2001/c-3-1.html | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/deal.II/doc/news/2001/c-3-1.html b/deal.II/doc/news/2001/c-3-1.html
index 6da9f8736d..ef7d213ef1 100644
--- a/deal.II/doc/news/2001/c-3-1.html
+++ b/deal.II/doc/news/2001/c-3-1.html
@@ -568,6 +568,14 @@ documentation, etc</a>.
 <h3>deal.II</h3>
 
 <ol>
+  <li> <p>
+       Fixed: in a rather rare case, some work was done twice in the
+       <code class="class">KellyErrorEstimator</code> class when in
+       multithread mode. This is now fixed.
+       <br>
+       (WB 2001/08/24)
+       </p>
+
   <li> <p>
        New: There is now a class <code class="class">GridTools</code>
        which provides algorithms working on triangulations. At
-- 
2.39.5