Program received signal SIGFPE: Floating-point exception - erroneous arithmetic operation.

Backtrace for this error:
#0  0x7ffff694e7a2 in ???
#1  0x7ffff694d935 in ???
#2  0x7ffff584e5af in ???
#3  0x783e71 in __rotation_mix_info_MOD_set_rotation_mixing_info._omp_fn.0
	at ../private/rotation_mix_info.f90:209
#4  0x7ffff7d487a1 in ???
#5  0x785267 in __rotation_mix_info_MOD_set_rotation_mixing_info
	at ../private/rotation_mix_info.f90:112
#6  0x5b61fb in __mix_info_MOD_update_rotation_mixing_info
	at ../private/mix_info.f90:1581
#7  0x5bd7a3 in __mix_info_MOD_set_mixing_info
	at ../private/mix_info.f90:285
#8  0x5ded8f in __hydro_vars_MOD_set_hydro_vars
	at ../private/hydro_vars.f90:615
#9  0x5e0cb2 in __hydro_vars_MOD_update_vars
	at ../private/hydro_vars.f90:241
#10  0x5e103e in set_some_vars
	at ../private/hydro_vars.f90:194
#11  0x5e13a8 in __hydro_vars_MOD_set_vars
	at ../private/hydro_vars.f90:86
#12  0x7109b4 in set_start_of_step_info
	at ../private/evolve.f90:1773
#13  0x717931 in prepare_for_new_step
	at ../private/evolve.f90:1888
#14  0x717931 in do_step_part1
	at ../private/evolve.f90:380
#15  0x717931 in __evolve_MOD_do_evolve_step_part1
	at ../private/evolve.f90:73
#16  0x4f0e91 in __star_lib_MOD_star_evolve_step_part1
	at ../public/star_lib.f90:585
#17  0x429c5f in __run_binary_support_MOD_do_run1_binary
	at ../private/run_binary_support.f90:449
#18  0x40b15c in __binary_lib_MOD_run1_binary
	at ../public/binary_lib.f90:74
#19  0x40aa49 in __run_binary_MOD_do_run_binary
	at /mnt/home/pmocz/ceph/mesa-git-tests/tmp.FUNUXBJEGp/binary/job/run_binary.f90:7
#20  0x40aa8c in binary_run
	at ../src/binary_run.f90:6
#21  0x40aaf0 in main
	at ../src/binary_run.f90:2
./rn1: line 6: 584602 Floating point exception(core dumped) ./binary