Hi,
We are running continuous active scan on NRF52 with duplicate filtering disabled. Under some circumstances all scan data stops being generated. This has been difficult to reproduce but is a serious bug for our application. It takes thousands of hours of device run time for us to create and identify this issue. I was able to capture a memory dump of such a device and am trying to examine it for any indication of the problem. I'm looking primarily at _radio state, but if anyone has any pointers I would appreciate it. The zephyr version that create this dump is master branch as of 10/26.
(gdb) p 'ctrl.c'::_radio
$20 = {
hf_clock = 0x20007668 <__device_clock_nrf5_m16src>,
entropy = 0x20007680 <__device_entropy_nrf5>,
ticks_anchor = 3215498,
remainder_anchor = 0,
is_k32src_stable = 1 '\001',
ticker_id_prepare = 5 '\005',
ticker_id_event = 0 '\000',
ticker_id_stop = 0 '\000',
role = ROLE_NONE,
state = STATE_NONE,
advertiser = {
hdr = {
ticks_xtal_to_start = 39,
ticks_active_to_start = 0,
ticks_preempt_to_start = 0,
ticks_slot = 150
},
chan_map_current = 0 '\000',
rfu = 0 '\000',
is_hdcd = 0 '\000',
is_enabled = 1 '\001',
phy_p = 1 '\001',
chan_map = 7 '\a',
filter_policy = 0 '\000',
rl_idx = 255 '\377',
adv_data = {
data = {"`\033\070\r\230X't\002\001\004\021\a\236\312\334$\016\345\251\340\223\363\243\265\001\000@n\000\000\000\000\000\000\000\000\000", "`\033\070\r\230X't\002\001\004\021\a\236\312\334$\016\345\251\340\223\363\243\265\001\000@n\000\000\000\000\000\000\000\000\000"},
first = 0 '\000',
last = 0 '\000'
},
scan_data = {
data = {"D\022\070\r\230X't\v\tStarGateΛ", '\000' <repeats 18 times>, "D\022\070\r\230X't\v\tStarGateΛ", '\000' <repeats 18 times>},
first = 0 '\000',
last = 0 '\000'
},
conn = 0x20002220 <_radio>
},
scanner = {
hdr = {
ticks_xtal_to_start = 39,
ticks_active_to_start = 0,
ticks_preempt_to_start = 10,
ticks_slot = 5948
},
is_enabled = 1 '\001',
state = 0 '\000',
chan = 0 '\000',
rfu = 0 '\000',
phy = 0 '\000',
type = 1 '\001',
filter_policy = 0 '\000',
adv_addr_type = 0 '\000',
init_addr_type = 1 '\001',
rpa_gen = 1 '\001',
rl_idx = 255 '\377',
init_addr = "8\r\230X't",
adv_addr = "\344\350\016\036\341", <incomplete sequence \364>,
ticks_window = 5939,
conn_interval = 40,
conn_latency = 0,
conn_timeout = 400,
ticks_conn_slot = 37,
conn = 0x0 <z_clock_driver_init>,
win_offset_us = 2
},
conn_pool = 0x20002220 <_radio>,
conn_free = 0x0 <z_clock_driver_init>,
connection_count = 1 '\001',
conn_curr = 0x0 <z_clock_driver_init>,
packet_counter = 1 '\001',
crc_expire = 0 '\000',
data_chan_map = "\377\377\377\377\037",
data_chan_count = 37 '%',
sca = 5 '\005',
default_tx_octets = 27,
default_tx_time = 328,
default_phy_tx = 3,
default_phy_rx = 3,
pkt_rx_data_pool = 0x200023d8 <_radio+440>,
pkt_rx_data_free = 0x0 <z_clock_driver_init>,
packet_data_octets_max = 27,
packet_rx_data_pool_size = 208,
packet_rx_data_size = 52,
packet_rx_data_count = 4 '\004',
packet_rx = 0x20002374 <_radio+340>,
packet_rx_count = 5 '\005',
packet_rx_last = 0 '\000',
packet_rx_acquire = 2 '\002',
link_rx_pool = 0x200024a8 <_radio+648>,
link_rx_free = 0x200024d0 <_radio+688>,
link_rx_head = 0x200024a8 <_radio+648>,
link_rx_tail = 0x200024a8 <_radio+648>,
link_rx_data_quota = 2 '\002',
pkt_tx_ctrl_pool = 0x200024d8 <_radio+696>,
pkt_tx_ctrl_free = 0x200024d8 <_radio+696>,
pkt_tx_data_pool = 0x20002520 <_radio+768>,
pkt_tx_data_free = 0x20002520 <_radio+768>,
packet_tx_data_size = 36,
pkt_tx = 0x20002388 <_radio+360>,
pkt_release = 0x200023b0 <_radio+400>,
packet_tx_count = 5 '\005',
packet_tx_first = 1 '\001',
packet_tx_last = 1 '\001',
packet_release_first = 1 '\001',
packet_release_last = 1 '\001',
fc_handle = {0, 0, 0},
fc_req = 2 '\002',
fc_ack = 2 '\002',
fc_ena = 1 '\001',
ticks_active_to_start = 0,
conn_upd = 0x0 <z_clock_driver_init>
}
Thanks,
Jon Pry
