bt
Tracing pid 86083 tid 708845 td 0xffffa00aea539600
db_trace_self() at db_trace_self
db_stack_trace() at db_stack_trace+0x11c
db_command() at db_command+0x368
db_command_loop() at db_command_loop+0x54
db_trap() at db_trap+0xf8
kdb_trap() at kdb_trap+0x1cc
handle_el1h_sync() at handle_el1h_sync+0x10
--- exception, esr 0xf2000000
kdb_enter() at kdb_enter+0x40
vpanic() at vpanic+0x1b0
panic() at panic+0x44
vm_object_collapse() at vm_object_collapse+0xbf8
vm_object_deallocate() at vm_object_deallocate+0x3e0
vm_map_process_deferred() at vm_map_process_deferred+0xa0
vm_map_remove() at vm_map_remove+0xc4
exec_new_vmspace() at exec_new_vmspace+0x1d8
exec_elf64_imgact() at exec_elf64_imgact+0xa10
kern_execve() at kern_execve+0x594
sys_execve() at sys_execve+0x60
do_el0_sync() at do_el0_sync+0x524
handle_el0_sync() at handle_el0_sync+0x40
--- exception, esr 0x56000000