# lldb -c firefox.core /usr/local/lib/firefox/firefox (lldb) target create "/usr/local/lib/firefox/firefox" --core "firefox.core" Core file '/root/firefox.core' (aarch64) was loaded. (lldb) bt * thread #1, name = 'firefox', stop reason = signal SIGSEGV * frame #0: 0x000000004049f0c8 libc.so.7`__je_arena_ralloc [inlined] rtree_extent_read(dependent=true) at rtree.h:406 frame #1: 0x000000004049f0c4 libc.so.7`__je_arena_ralloc at arena_inlines_b.h:335 frame #2: 0x000000004049ef84 libc.so.7`__je_arena_ralloc [inlined] isdalloct(slow_path=true) at jemalloc_internal_inlines_c.h:110 frame #3: 0x000000004049ef14 libc.so.7`__je_arena_ralloc(tsdn=0x000000000000000b, arena=, ptr=0x0000ffffffffe0a0, oldsize=, size=, alignment=0, zero=true, tcache=0x0000ffffffffe050) at jemalloc_arena.c:1842 frame #4: 0x0000000046588330 libxul.so`nsProfileLock::FatalSignalHandler(int, __siginfo*, void*) + 336 frame #5: 0x0000000040372e80 libthr.so.3`handle_signal(actp=0x0000ffffffffdfe0, sig=11, info=0x0000ffffffffe050, ucp=0x0000ffffffffe0a0) at thr_sig.c:244 frame #6: 0x00000000403725a4 libthr.so.3`thr_sighandler(sig=11, info=0x0000ffffffffe050, _ucp=0x0000ffffffffe0a0) at thr_sig.c:189 frame #7: 0x0000fffffffff000 frame #8: 0x0000000043e22db0 libxul.so`NS_InitXPCOM2 + 940 frame #9: 0x0000000046592848 libxul.so`XREMain::XRE_main(int, char**, mozilla::BootstrapConfig const&) + 764 frame #10: 0x0000000046592d88 libxul.so`XRE_main(int, char**, mozilla::BootstrapConfig const&) + 160 frame #11: 0x0000000000110614 firefox`main + 800 frame #12: 0x0000000000110198 firefox`__start(argc=1, argv=0x0000ffffffffec88, env=0x0000ffffffffec98, cleanup=) at crt1.c:84 frame #13: 0x0000000040140018 ld-elf.so.1`.rtld_start at rtld_start.S:41 (lldb)