> On 2016–12–20, at 22:34, Eli Zaretskii wrote: > >> From: Alexis Layton >> Date: Tue, 20 Dec 2016 21:45:47 -0500 >> >> I run the Mac OS (X) binary distributions built by David Caldwell at www.emacsformacosx.com, which claim to be pure GNU Emacs. The latest pretest 25.1.90 immediately crashes on OS X 10.10.5 Yosemite. >> >> $ emacs -nw -q >> Illegal instruction: 4 >> >> I can't really give much more information. 25.1 and all of its protests and release candidates ran fine, and the released version continues to do so. > > It would help if you could run Emacs under a debugger and show > backtrace when it crashes. > > Thanks. Sadly this is not as informative as it looks: $ lldb /Applications/Emacs.app/Contents/MacOS/Emacs-x86_64-10_9 (lldb) target create "/Applications/Emacs.app/Contents/MacOS/Emacs-x86_64-10_9" Current executable set to '/Applications/Emacs.app/Contents/MacOS/Emacs-x86_64-10_9' (x86_64). (lldb) r Process 23181 launched: '/Applications/Emacs.app/Contents/MacOS/Emacs-x86_64-10_9' (x86_64) Process 23181 stopped * thread #1: tid = 0x1550e6, 0x000000010084979d libnettle.6.dylib`nettle_sha256_init + 4, queue = 'com.apple.main-thread', stop reason = EXC_BAD_INSTRUCTION (code=EXC_I386_INVOP, subcode=0x0) frame #0: 0x000000010084979d libnettle.6.dylib`nettle_sha256_init + 4 libnettle.6.dylib`nettle_sha256_init: -> 0x10084979d <+4>: vmovaps 0x130bb(%rip), %xmm0 ; nettle_sha256_init.H0 + 16 0x1008497a5 <+12>: vmovups %xmm0, 0x10(%rdi) 0x1008497aa <+17>: vmovaps 0x1309e(%rip), %xmm0 ; nettle_sha256_init.H0 0x1008497b2 <+25>: vmovups %xmm0, (%rdi)