Larrd problem on upgrade to 4.0.3

[Geoff Steer]

I've just upgraded my test server to 4.0.3 and there is a problem with
(I think) hobbitd_larrd. 
I was previously using hobbit 4.0.2 with no problem. 
The server is running Centos 4.0 (Redhat AS 4.0 equiv) 
The various config files are as installed by the hobbit install process,
only the alerts file is changed. I'm providing sendmail and mailq data
via the BB scripts.

In the larrd-status.log I get:

2005-05-22 03:44:49 Tried to down BOARDBUSY: Invalid argument
2005-05-22 15:50:53 Gave up waiting for GOCLIENT to go low.
2005-05-22 16:37:50 Tried to down BOARDBUSY: Invalid argument
2005-05-23 04:18:51 Gave up waiting for GOCLIENT to go low.
2005-05-23 16:45:29 Tried to down BOARDBUSY: Invalid argument
2005-05-23 17:08:36 Tried to down BOARDBUSY: Invalid argument
2005-05-23 17:10:07 Tried to down BOARDBUSY: Invalid argument

In the larrd-status.log I get:
2005-05-23 17:10:07 Tried to down BOARDBUSY: Invalid argument
*** glibc detected *** corrupted double-linked list: 0x00479838 ***
2005-05-23 17:11:45 Worker process died with exit code 134, terminating
*** glibc detected *** corrupted double-linked list: 0x00479838 ***
2005-05-23 17:12:54 Worker process died with exit code 134, terminating

ANy suggestions? I was planning to put the server in as a production
server tomorrow morning :-(

Regards
Geoff