Re: Restore is failing

I am copying schema data to qa box from prod.its failing and giving below error :

WARNING:  terminating connection because of crash of another server process

DETAIL:  The postmaster has commanded this server process to roll back the current transaction and exit, because another server process exited abnormally and possibly corrupted shared memory.

HINT:  In a moment you should be able to reconnect to the database and repeat your command.

server closed the connection unexpectedly. 

Can some one please help. Work_mem is set to 8gb. 

Thanks , Sonam

What version of postgres?
Method of copy?
Identify which server process is failing, what's the error there.