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Chapter 22: Configuring a System 239 target processors. The user is advised to allocate somewhat more memory than the worksheet recommends to insure compatibility with future releases for a specific target processor and other target processors. To avoid problems, the user should recalculate the memory requirements each time one of the following events occurs: • • • • • a configuration parameter is modified, task or interrupt stack requirements change, task floating point attribute is altered, RTEMS is upgraded, or the target processor is changed. Failure to provide enough space in the RTEMS RAM Workspace will result in the rtems_fatal_error_occurred directive being invoked with the appropriate error code.