With WIP changes rescue's "ls -G" is segfaulting for me: root@:~ # /rescue/ls -G Segmentation fault (core dumped) the rescue build forces debug files off: share/mk/bsd.crunchgen.mk 50:MK_DEBUG_FILES= no making debugging difficult: root@:~ # lldb /rescue/ls -c ls.core (lldb) target create "/rescue/ls" --core "ls.core" Core file '/root/ls.core' (x86_64) was loaded. (lldb) bt * thread #1: tid = 100065, 0x00000000006b4050 ls`??? + 112, name = 'ls', stop reason = signal SIGSEGV * frame #0: 0x00000000006b4050 ls`??? + 112 frame #1: 0x00000000006b1a6b ls`??? + 1595 frame #2: 0x000000000069917f ls`??? + 383 (lldb) This is a little awkward to address, as the crunched binaries are built using a Makefile generated by crunchgen(1).