I've created a patch in the branch https://sourceforge.net/p/golly/code/ci/fixmemoryzoneissue/tree/ I've done some testing, but would appreciate more. This can likely wait for our next release.
Update hslifealgo and ghashbase to manage memory better with respect
Made random fill use C++11's Mersenne Twister for random fill, rather
Fix a bug where setbit on very large universes in 8-bit hashlife trashed
Don't permit magnification to go below 2^(-2^20).
Restore bailIfCalculating() everywhere we think it was, and if we can
Fix a critical bug that occurs when parsing a bigint from string
Set the stack size on Windows to a default of 32MB (the normal Windows