Add CHANGES note for GL #2396

diff --git a/CHANGES b/CHANGES
index aa7dc359039f253ff6732f557b44b4418ef37484..b131b13d65e9300334baadd51cc37ee0f85654e0 100644 (file)
--- a/CHANGES
+++ b/CHANGES
@@ -1,3 +1,10 @@
+5592.  [bug]           Add globally available thread_id (isc_tid_v) that's
+                       incremented for each new thread, but the old thread
+                       ids are reused, so the maximum thread_id always
+                       correspond to the maximum number of threads running
+                       at the time. This fixes the hazard pointer tables
+                       overflow on machines with many cores. [GL #2396]
+
 5591.  [bug]           Fix a crash happening when "stale-answer-client-timeout"
                        is triggered and there is no (stale) data for it in the
                        cache. [GL #2503]