$ gdb ./emu-g
(gdb) run
0xf7f8937d in tss_get () from /lib/ld-musl-i386.so.1
(gdb) bt
#0  0xf7f8937d in tss_get () from /lib/ld-musl-i386.so.1
#1  0x5662e280 in getup () at ../port/kproc-pthreads.c:39
#2  0x5662da5e in cleanexit (x=0) at os.c:136
#3  0x566548ab in panic (fmt=0x5669b49a "can't save startup args") at ../port/main.c:409
#4  0x56654975 in savestartup (argv=0xfffac374, argc=1) at ../port/main.c:198
#5  main (argc=1, argv=0xfffac374) at ../port/main.c:245