ACL: in "regex" condition, release store every thousand lines. Bug 3047

[exim.git] / doc / doc-txt / ChangeLog

diff --git a/doc/doc-txt/ChangeLog b/doc/doc-txt/ChangeLog
index 14cd45d85d9af943e64f13f1de8442028593ac1d..48cc629109c18a04d9ce1fbe117165490622373a 100644 (file)
--- a/doc/doc-txt/ChangeLog
+++ b/doc/doc-txt/ChangeLog
@@ -93,6 +93,15 @@ JH/19 Fix TLS startup. When the last expansion done before the initiation of a
       parts.  It could also potentially affect tls_privatekeys.  The underlyding
       coding errors go back to 4.90 but were only exposed in 4.97.
 
+JH/20 Bug 3047: A recent (somewhere between 10.34 and 10.42) version of the
+      pcre2 library starting allocating 20kB rather than 112 bytes per match
+      call, which broke the 2GB total limitation on Exim's memory management
+      when a user had over 104207 messages stored and the appendfile
+      maildir_quota_directory_regex option is in use.  Release the allocated
+      memory every thosand files to avoid this.
+      The same issue arises with the ACL regex condition, which is applied
+      to every line of a received message.
+
 
 Exim version 4.97
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