IPC error receiving a message
ORA-27510 – Oracle Error Code
IPC error waiting for a request to complete
ORA-27512 – Oracle Error Code
IPC error posting a process
ORA-27528 – Oracle Error Code
Cannot allocate communication buffers of zero size
ORA-27529 – Oracle Error Code
Cannot allocate zero sized communication buffers
ORA-27530 – Oracle Error Code
Cannot deallocate pointer to NULL memory
ORA-27531 – Oracle Error Code
Cannot destroy invalid port
ORA-27532 – Oracle Error Code
IPC global name service is not supported
ORA-27500 – Oracle Error Code
Inter-instance IPC error
ORA-27533 – Oracle Error Code
Trying to destroy invalid connection identifier