Closed
Description
Using beta 7 I was testing some i2c address code and needed to scan the bus on the REPL, then tried to re-start the code and was sent into safe mode.
code.py:
import time
import board
import busio
import adafruit_veml7700
i2c = board.I2C()
veml7700 = adafruit_veml7700.VEML7700(i2c)
while True:
print("Ambient light:", veml7700.light)
time.sleep(0.1)
To reproduce, have the above code.py saved on the device, start a REPL and do the following:
import board
i2c = board.I2C()
i2c.try_lock()
i2c.scan() # not needed to repro
then CTRL-D to re-start the code.py
I after some fussing I was able to get a backtrace:
Breakpoint 2 at 0x3143a: file ../../supervisor/shared/safe_mode.c, line 81.
(gdb) c
Continuing.
Breakpoint 1, reset_into_safe_mode (
reason=HARD_CRASH)
at ../../supervisor/shared/safe_mode.c:81
81 if (current_safe_mode > BROWNOUT && reason > BROWNOUT) {
(gdb) bt
#0 reset_into_safe_mode (reason=HARD_CRASH)
at ../../supervisor/shared/safe_mode.c:81
#1 0x00032822 in HardFault_Handler ()
at supervisor/port.c:290
#2 <signal handler called>
#3 0x00052b28 in mp_load_method_maybe (
obj=0x20029a80, attr=859, dest=0x20003574)
at ../../py/runtime.c:1074
#4 0x000530d2 in mp_load_method (base=0x20029a80,
attr=859, dest=0x20003574)
at ../../py/runtime.c:1093
#5 0x00038446 in mp_execute_bytecode (
code_state=0x20003560,
inject_exc=<optimized out>) at ../../py/vm.c:368
#6 0x00046902 in fun_bc_call.lto_priv.66 (
self_in=0x20028c40, n_args=3, n_kw=0,
args=0x20002d64) at ../../py/objfun.c:284
#7 0x0004e954 in mp_call_function_n_kw (
fun_in=0x20028c40, n_args=3, n_kw=0,
args=0x20002d64) at ../../py/runtime.c:624
#8 0x0004ea12 in mp_call_method_n_kw (n_args=2,
n_kw=0, args=0x20002d60)
at ../../py/runtime.c:639
#9 0x0004033e in mp_obj_instance_make_new (
self=0x20029350, n_args=2, args=0x2002fc24,
kw_args=0x2002fb2c) at ../../py/objtype.c:366
#10 0x00040756 in type_call.lto_priv.9 (
self_in=0x20029350, n_args=2, n_kw=0,
args=0x2002fc24) at ../../py/objtype.c:1026
#11 0x0004e954 in mp_call_function_n_kw (
fun_in=0x20029350, n_args=2, n_kw=0,
args=0x2002fc24) at ../../py/runtime.c:624
#12 0x0004ea12 in mp_call_method_n_kw (n_args=2,
n_kw=0, args=0x2002fc1c)
at ../../py/runtime.c:639
#13 0x000381f4 in mp_execute_bytecode (
---Type <return> to continue, or q <return> to quit---
code_state=0x2002fc08,
inject_exc=<optimized out>) at ../../py/vm.c:1015
#14 0x00046902 in fun_bc_call.lto_priv.66 (
self_in=0x20027840, n_args=2, n_kw=0,
args=0x20002d44) at ../../py/objfun.c:284
#15 0x0004e954 in mp_call_function_n_kw (
fun_in=0x20027840, n_args=2, n_kw=0,
args=0x20002d44) at ../../py/runtime.c:624
#16 0x0004ea12 in mp_call_method_n_kw (n_args=1,
n_kw=0, args=0x20002d40)
at ../../py/runtime.c:639
#17 0x0004033e in mp_obj_instance_make_new (
self=0x20027b00, n_args=1, args=0x2002fe2c,
kw_args=0x2002fd34) at ../../py/objtype.c:366
#18 0x00040756 in type_call.lto_priv.9 (
self_in=0x20027b00, n_args=1, n_kw=0,
args=0x2002fe2c) at ../../py/objtype.c:1026
#19 0x0004e954 in mp_call_function_n_kw (
fun_in=0x20027b00, n_args=1, n_kw=0,
args=0x2002fe2c) at ../../py/runtime.c:624
#20 0x0004ea12 in mp_call_method_n_kw (n_args=1,
n_kw=0, args=0x2002fe24)
at ../../py/runtime.c:639
#21 0x000381f4 in mp_execute_bytecode (
code_state=0x2002fe10,
inject_exc=<optimized out>) at ../../py/vm.c:1015
#22 0x00046902 in fun_bc_call.lto_priv.66 (
self_in=0x20029a00, n_args=0, n_kw=0, args=0x0)
at ../../py/objfun.c:284
#23 0x0004e954 in mp_call_function_n_kw (
fun_in=0x20029a00, n_args=0, n_kw=0, args=0x0)
at ../../py/runtime.c:624
#24 0x0004ea50 in mp_call_function_0 (fun=0x20029a00)
at ../../py/runtime.c:598
#25 0x000208fc in parse_compile_execute (
source=0x709d0, input_kind=MP_PARSE_FILE_INPUT,
---Type <return> to continue, or q <return> to quit---
exec_flags=32, result=0x2002ffb4)
at ../../lib/utils/pyexec.c:114
#26 0x00020a72 in pyexec_file (
filename=0x709d0 "code.py", result=0x2002ffb4)
at ../../lib/utils/pyexec.c:527
#27 0x0003434e in maybe_run_list (
filenames=0x200001c4 <supported_filenames>,
exec_result=0x2002ffb4) at ../../main.c:175
#28 0x000345f0 in run_code_py (
safe_mode=NO_SAFE_MODE) at ../../main.c:215
#29 0x0003486e in main () at ../../main.c:447