TRANSIENT LIBRARIES under RSX11M One problem with transient libraries is that if memory is tight the region required for the library sometimes can not get created and LDLIB produces an annoying message that the task can't run because the region could not be created. Several steps are taken to solve this problem (at least partially) 1. The SUSPEND/RESUME logic/handshaking between LDLIB.TSK and LDLIBS is replaced with STOP/UNSTOP for systems having parent/offspring tasking GENed into their system. A STOPed task has 0 effective priority and is immediately elegible for checkpointing. A suspended task only can get checkpointed by a higher priority task. This makes it easier to checkpoint the initiating task while LDLIB is doing its thing. 2. CKP... has been modified to accept requests from LDLIB to clear out core. LDLIB now sends off requests to CKP... to checkpoint everything (!!!) it can when LDLIB needs to load a loadable library. Clearly this would cause a lot of thrashing on a system in which tasks with loadable libraries were bouncing in and out of core constantly. However, in many systems, the tasks built with loadable libraries are infrequently used. 3. CKP... has been modified so a privileged user can RUN CKP... and checkpoint everything out of core.