Invalid Administration Shared Memory 

After updating the startup framework, you may receive the following error message in dev_jcontrol or dev_<component name> trace files:

*** ERROR => Can't create to administration shared memory *** ERROR => Can't attach to administration shared memory

This problem usually appears on UNIX.

Solution

The reason for this error message is an already existing shared memory segment with wrong size. In this case:

...

       1.      Stop the J2EE instance.

       2.      Go to the os_libs directory of the J2EE instance.

       3.      To invoke the shared memory cleanup, execute:

jcontrol pf=<SAP instance profile> -c.

       4.      Restart the J2EE instance.