bug#29180: 27.0.50; Bootstrapping on MINGW64 fails with "dumped_data_commit: memory exhausted"

[John Mastro]

Bootstrapping master (at commit 1d8f885) on MINGW64 fails for me with
the following error:

[...]
./temacs --batch  --load loadup bootstrap
Loading loadup.el (source)...
Using load-path [...]
Loading emacs-lisp/byte-run (source)...
[... a bunch more ...]
Loading c:/home/jbm/src/emacs/lisp/image.el (source)...
dumped_data_commit: memory exhausted.
Enlarge dumped_data[]!
make[2]: *** [Makefile:738: bootstrap-emacs.exe] Error 127
make[2]: Leaving directory '/c/home/jbm/src/emacs/src'
make[1]: *** [Makefile:416: src] Error 2
make[1]: Leaving directory '/c/home/jbm/src/emacs'
make: *** [Makefile:1098: bootstrap] Error 2

I've attached the full output of "make bootstrap", plus a patch bumping
the size of DUMPED_HEAP_SIZE. The patch allows the bootstrap to succeed,
but I'm not sure if any investigation is required first.

Thanks

John

bootstrap-memory-exhausted.txt
Description: Text document

0001-Bump-up-DUMPED_HEAP_SIZE-in-w32heap.c.patch
Description: Binary data