https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115750
--- Comment #5 from John David Anglin <danglin at gcc dot gnu.org> --- I did a build with gcc-14. It fails here: ./temacs --batch -l loadup --temacs=pbootstrap \ --bin-dest /usr/bin/ --eln-dest /usr/lib/emacs/29.4/ Memory exhausted--use M-x save-some-buffers then exit and restart Emacs make[4]: *** [Makefile:923: bootstrap-emacs.pdmp] Error 255 I see the following with strace running temacs: mremap(0x623c6000, 2145378304, 2145382400, MREMAP_MAYMOVE) = 0x623c6000 mremap(0x623c6000, 2145382400, 2145386496, MREMAP_MAYMOVE) = -1 ENOMEM (Cannot a llocate memory) mmap2(NULL, 2145386496, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = -1 ENOMEM (Cannot allocate memory) brk(0x80544000) = 0x745000 mmap2(NULL, 2145517568, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = -1 ENOMEM (Cannot allocate memory) write(2, "M", 1) = 1 There are 523740 calls to mremap starting here: mremap(0xf9a5c000, 147456, 151552, MREMAP_MAYMOVE) = 0xf99fc000 mremap(0xf99fc000, 151552, 155648, MREMAP_MAYMOVE) = 0xf9a5a000 mremap(0xf9a5a000, 155648, 159744, MREMAP_MAYMOVE) = 0xf99fa000