2157990 - GW: GwGetMemory, overflow exceeded

Gateway trace file (dev_rd) shows:

***LOG S0O=> GwGetMemory, overflow exceeded () [gwxxrd.c     17150]
*****************************************************************************
*  LOCATION    SAP-Gateway on host <hostname> / sapgw<nr>
*  ERROR       can't get memory in function GwGetMemory(overflow exceeded) (
*              xxxxx bytes )
* TIME
* RELEASE
* COMPONENT   SAP-Gateway
* VERSION
* RC          222
* MODULE gwxxrd.c
*****************************************************************************

On System Log entries, it can be found:
 "No free space in overflow area of gateway"

In some cases there could be a dump in ST22 transaction:
Runtime Errors         CALL_FUNCTION_SEND_ERROR/CALL_FUNCTION_ACCEPT_FAILED

Short Text
    "can't get memory in function GwGetMemory(overflow exceeded) ( xxxxx bytes )"

What happened?
An error occurred when executing a Remote Function Call.

   "CPIC-CALL: 'ThCMSEND' : cmRc=26 thRc=222#Gateway memory bottleneck "

 Place................ "SAP-Gateway on host <hostname> / sapgw<nr>"
 Error code........... 222
 Error text........... "can't get memory in function GwGetMemory(overflow
  exceeded) ( xxxxx bytes )""

SAP NetWeaver system

GwGetMemory, overflow exceeded, 222, CANT_GET_MEMORY, Memory bottleneck, Gateway memory bottleneck, No free space in overflow area of gateway, can't get memory in function GwGetMemory(overflow  exceeded), gw/max_overflow_size, gw/max_overflow_usage , KBA , BC-CST-GW , Gateway/CPIC , How To