Multi-threaded MFC and other operations can be killed by idle session timeout
When a system has STN_GEM_TIMEOUT set to a non-zero value, sessions that
do not interact with the stone for that period of time may be killed. The
new multi-threaded operations, including markForCollection, were not protected
from this mechanism, so an MFC that ran for a period longer than STN_GEM_TIMEOUT
could be killed.
Workaround
Disable STN_GEM_TIMEOUT while the MFC is running
Last updated: 12/19/12