MSTACKSZNA, User-specified M stack size of SSSS KiB not appropriate; must be between LLLL KiB and MMMM KiB; reverting to VVVV KiB
Run Time Information: The gtm_mstack environment variable species an M stack size outside the range GT.M supports, where LLLL and MMMM are the lower and upper bounds respectively; VVVV is the value actually used.
Action: None required immediately as the process operates with the reported size M stack, however it would be preferable to eliminate such messages by setting gtm_mstack to a value in the supported range.