Tracing pid 0 tid 102147 td 0xffffa0081c0fc600
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
deadlkres() at deadlkres+0x2bc
fork_exit() at fork_exit+0x74
fork_trampoline() at fork_trampoline+0x14