This bug was already fixed; on an up to date machine running 11.10 you wouldn't be getting hit by it. Not sure if 11.04 is affected.
Now, this kind of failure just means you're probably trying to do stuff on unref'd variables; perhaps because the hash table has already been freed but it could be for a variety of reasons, all of them dependent on the application's code. I suggest instead to post your issue on a side like StackExchange.
Manuel,
This bug was already fixed; on an up to date machine running 11.10 you wouldn't be getting hit by it. Not sure if 11.04 is affected.
Now, this kind of failure just means you're probably trying to do stuff on unref'd variables; perhaps because the hash table has already been freed but it could be for a variety of reasons, all of them dependent on the application's code. I suggest instead to post your issue on a side like StackExchange.