[Xymon] Could not fork checkpoint child:Cannot allocate memory

[Raul GN]

After upgrading from xymon version 4.3.12 to 4.3.17  xymond daemon memory
grow without any limit. After a 2 or 3 days this messages appear in logs:

2014-07-17 16:27:46 Setup complete
2014-07-18 04:16:49 Flapping detected for web.int:http - 10 changes in 868
seconds
2014-07-18 04:16:49 Flapping detected for web.int:tomcat - 10 changes in
868 seconds
2014-07-18 04:18:23 Flapping detected for web.int:http - 10 changes in 892
seconds
2014-07-18 04:18:23 Flapping detected for web.int:tomcat - 10 changes in
892 seconds
2014-07-18 18:25:44 Flapping detected for web.int:http - 10 changes in 808
seconds
2014-07-18 18:25:44 Flapping detected for web.int:tomcat - 10 changes in
808 seconds
2014-07-18 23:40:53 Could not fork checkpoint child:Cannot allocate memory
2014-07-18 23:50:54 Could not fork checkpoint child:Cannot allocate memory
2014-07-19 00:00:55 Could not fork checkpoint child:Cannot allocate memory
2014-07-19 00:10:56 Could not fork checkpoint child:Cannot allocate memory
2014-07-19 00:20:57 Could not fork checkpoint child:Cannot allocate memory
2014-07-19 00:30:58 Could not fork checkpoint child:Cannot allocate memory
2014-07-19 00:40:59 Could not fork checkpoint child:Cannot allocate memory
2014-07-19 00:51:00 Could not fork checkpoint child:Cannot allocate memory
2014-07-19 01:01:01 Could not fork checkpoint child:Cannot allocate memory
2014-07-19 01:11:02 Could not fork checkpoint child:Cannot allocate memory
2014-07-19 01:21:03 Could not fork checkpoint child:Cannot allocate memory
2014-07-19 01:31:04 Could not fork checkpoint child:Cannot allocate memory
2014-07-19 01:41:05 Could not fork checkpoint child:Cannot allocate memory
2014-07-19 01:51:06 Could not fork checkpoint child:Cannot allocate memory
2014-07-19 02:01:07 Could not fork checkpoint child:Cannot allocate memory
2014-07-19 02:11:08 Could not fork checkpoint child:Cannot allocate memory

¿Anybody knows how to avoid this problem? If I don't reboot xymon it crash.
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