SQL Server memory high usage.

Hi

I Have a SQL 2008 R2 SP1 running on 64bits. The memory usage grows until no memory is available. We have Max memory set to 6 GB. The server has 24 GB of RAM. I understand that the limit is only for buffer pool, and there could be external component which uses more memory.

Currently I have seen that there's a component called MEMORYCLERK_SQLGENERAL which uses more than 8 GB of memory. What is this component? How can I know which session is using the memory?

Thanks in advance.

Regards.