Mmap engine fixes #1446

Job	Run time
build-containers (oracle, oraclelinux, 9, x86_64)	15m 21s
build-containers (ubuntu, ubuntu, noble, i686)	13m 56s
build-containers (fedora, fedora, 40, x86_64)	15m 27s
build-containers (ubuntu, ubuntu, noble, x86_64)	15m 2s
build (linux-clang)	13m 15s
build-containers (rocky, rockylinux, 9, x86_64)	16m 41s
build-containers (debian, debian, bookworm, x86_64)	14m 49s
build (macos)	13m 32s
build (windows-cygwin-32)	14m 16s
build (linux-gcc)	15m 1s
build (android)	35s
build (windows-msys2-64)	14m 28s
build (linux-i686-gcc)	13m 56s
build (windows-cygwin-64)	16m 36s
build (android-recovery, ubuntu-22.04, aarch64-linux-android32)	35s
build-containers (alma, almalinux, 9, x86_64)	14m 45s
	3h 28m 15s

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