Also present in 2.5.1. There is no output, but I confirmed manually that this is caused by SIGBUS. Backtrace and UBSAN run forthcoming. Reproducible: Always
Created attachment 880967 [details] build.log and emerge --info
Created attachment 880970 [details] UBSAN run So, the first failure is actually a fault in media-libs/sdl2-ttf. However there is a second failure that I suspect will come up next should the first one be fixed. loading pygame.tests.font_test /var/tmp/portage/media-libs/sdl2-ttf-2.20.2/work/SDL2_ttf-2.20.2/SDL_ttf.c:919:9: runtime error: load of misaligned address 0x0001478311c7 for type 'const Uint64', which requires 8 byte alignment 0x0001478311c7: note: pointer points here 00 00 00 00 01 01 01 01 01 01 01 01 01 01 00 00 00 00 00 00 00 01 01 01 01 01 01 01 01 01 01 00 ^ Culprit somewhere in here: https://github.com/libsdl-org/SDL_ttf/blob/release-2.20.2/SDL_ttf.c#L910-L926
Created attachment 880971 [details] backtrace I also tried -UUSE_DUFFS_LOOP here but it didn't work, because the actual unalignment seems to occur outside of the loop body.
Minimized reproducer: $ wget "https://github.com/pygame/pygame/raw/main/src_py/freesansbold.ttf" $ cat test.c #include <SDL2/SDL_ttf.h> int main() { TTF_Init(); TTF_RenderUTF8_Solid( TTF_OpenFont("./freesansbold.ttf", 24), "Test", (struct SDL_Color){ 255, 255, 255, 255 } ); return 0; } $ gcc -O0 -ggdb3 -pipe test.c -o test -lSDL2_ttf $ ./test Bus error (core dumped) And with UBSAN: $ ./test /var/tmp/portage/media-libs/sdl2-ttf-2.20.2/work/SDL2_ttf-2.20.2/SDL_ttf.c:919:9: runtime error: load of misaligned address 0x000122b09817 for type 'const Uint64', which requires 8 byte alignment 0x000122b09817: note: pointer points here 00 00 00 00 01 01 01 01 01 01 01 01 01 01 01 01 01 01 00 00 00 00 00 00 00 01 01 01 01 01 01 01 ^
