lance-proxy edited a comment on issue #834:
URL: https://github.com/apache/mynewt-nimble/issues/834#issuecomment-651292716
@andrzej-kaczmarek @rymanluk I finally caught a test device in the
debugger. See attached gdb backtrace:
```
(gdb) bt
#0 hal_debug_break () at
repos/apache-mynewt-core/hw/mcu/nordic/nrf52xxx/include/mcu/cortex_m4.h:37
#1 ble_ll_scan_aux_data_unref (aux_data=0x0) at
repos/apache-mynewt-nimble/nimble/controller/src/ble_ll_scan.c:1079
#2 0x000309a8 in ble_ll_scan_rx_pkt_in_on_aux (addrd=0x2001396c
<g_ble_ll_stack+380>, hdr=0x2000d694 <os_msys_1_data+1168>, om=0x2000d67c
<os_msys_1_data+1144>, pdu_type=<optimized out>) at
repos/apache-mynewt-nimble/nimble/controller/src/ble_ll_scan.c:3183
#3 ble_ll_scan_rx_pkt_in (ptype=<optimized out>, om=om@entry=0x2000d67c
<os_msys_1_data+1144>, hdr=0x2000d694 <os_msys_1_data+1168>) at
repos/apache-mynewt-nimble/nimble/controller/src/ble_ll_scan.c:3207
#4 0x00029896 in ble_ll_rx_pkt_in () at
repos/apache-mynewt-nimble/nimble/controller/src/ble_ll.c:834
#5 ble_ll_event_rx_pkt (ev=<optimized out>) at
repos/apache-mynewt-nimble/nimble/controller/src/ble_ll.c:1161
#6 0x000297ae in ble_npl_event_run (ev=<optimized out>) at
repos/apache-mynewt-nimble/porting/npl/mynewt/include/nimble/nimble_npl_os.h:116
#7 ble_ll_task (arg=<optimized out>) at
repos/apache-mynewt-nimble/nimble/controller/src/ble_ll.c:1211
#8 0x000163d2 in os_time_ms_to_ticks (ms=536951248, out_ticks=0x2001398c
<g_ble_ll_stack+412>) at repos/apache-mynewt-core/kernel/os/src/os_time.c:346
#9 0x00000000 in ?? ()
```
Some LL global variable inspections:
```
(gdb) p g_ble_phy_data
$4 = {
phy_stats_initialized = 1 '\001',
phy_txpwr_dbm = 0 '\000',
phy_chan = 37 '%',
phy_state = 0 '\000',
phy_transition = 2 '\002',
phy_transition_late = 0 '\000',
phy_rx_started = 1 '\001',
phy_encrypted = 0 '\000',
phy_privacy = 0 '\000',
phy_tx_pyld_len = 12 '\f',
phy_cur_phy_mode = 1 '\001',
phy_tx_phy_mode = 1 '\001',
phy_rx_phy_mode = 1 '\001',
phy_bcc_offset = 0 '\000',
rx_pwr_compensation = 0 '\000',
phy_aar_scratch = 0,
phy_access_address = 2391391958,
rxhdr = {
{
rxinfo = {
flags = 2050,
channel = 37 '%',
handle = 0 '\000',
rssi = -92 '\244',
phy = 1 '\001',
phy_mode = 1 '\001',
user_data = 0x0
},
txinfo = {
flags = 2 '\002',
offset = 8 '\b',
pyld_len = 37 '%',
hdr_byte = 0 '\000'
}
},
beg_cputime = 616833506,
rem_usecs = 18
},
txend_arg = 0x0,
txend_cb = 0x0,
phy_start_cputime = 616833416
}
```
```
(gdb) p g_ble_ll_data
$5 = {
ll_supp_features = 4110,
ll_state = 0 '\000',
ll_num_acl_pkts = 4 '\004',
ll_acl_pkt_size = 255,
ll_pref_tx_phys = 0 '\000',
ll_pref_rx_phys = 0 '\000',
ll_evq = {
evq = {
evq_owner = 0x200139d0 <g_ble_ll_task>,
evq_task = 0x0,
evq_list = {
stqh_first = 0x20016b68 <g_ble_ll_rfmgmt_data+52>,
stqh_last = 0x20016b74 <g_ble_ll_rfmgmt_data+64>
}
}
},
ll_wfr_timer = {
bsp_timer = 0x0,
cb_func = 0x0,
cb_arg = 0x0,
expiry = 0,
link = {
tqe_next = 0x0,
tqe_prev = 0x0
}
},
ll_rx_pkt_ev = {
ev = {
ev_queued = 0 '\000',
ev_cb = 0x29831 <ble_ll_event_rx_pkt>,
ev_arg = 0x0,
ev_next = {
stqe_next = 0x20016b68 <g_ble_ll_rfmgmt_data+52>
}
}
},
ll_rx_pkt_q = {
stqh_first = 0x0,
stqh_last = 0x20013790 <g_ble_ll_data+72>
},
ll_tx_pkt_ev = {
ev = {
ev_queued = 0 '\000',
ev_cb = 0x297c9 <ble_ll_event_tx_pkt>,
ev_arg = 0x0,
ev_next = {
stqe_next = 0x0
}
}
},
ll_tx_pkt_q = {
stqh_first = 0x0,
stqh_last = 0x200137a8 <g_ble_ll_data+96>
},
ll_dbuf_overflow_ev = {
ev = {
ev_queued = 0 '\000',
ev_cb = 0x297c3 <ble_ll_event_dbuf_overflow>,
ev_arg = 0x0,
ev_next = {
stqe_next = 0x0
}
}
},
ll_comp_pkt_ev = {
ev = {
ev_queued = 0 '\000',
ev_cb = 0x297bd <ble_ll_event_comp_pkts>,
ev_arg = 0x0,
ev_next = {
stqe_next = 0x0
}
}
},
ll_hw_err_timer = {
co = {
c_ev = {
ev_queued = 0 '\000',
ev_cb = 0x298a5 <ble_ll_hw_err_timer_cb>,
ev_arg = 0x0,
ev_next = {
stqe_next = 0x0
}
},
c_evq = 0x20013758 <g_ble_ll_data+16>,
c_ticks = 0,
c_next = {
tqe_next = 0x0,
tqe_prev = 0x0
}
}
}
}
```
```
(gdb) p g_ble_ll_scan_sm
$6 = {
scan_enabled = 0 '\000',
own_addr_type = 1 '\001',
scan_filt_dups = 0 '\000',
scan_rsp_pending = 0 '\000',
scan_rsp_cons_fails = 1 '\001',
scan_rsp_cons_ok = 0 '\000',
scan_peer_rpa = "\000\000\000\000\000",
pdu_data = {
hdr_byte = 195 '\303',
{
scana = "|\210\034\063", <incomplete sequence \303>,
inita = "|\210\034\063", <incomplete sequence \303>
},
adva = "9~H\276\317", <incomplete sequence \327>
},
upper_limit = 4,
backoff_count = 3,
scan_win_start_time = 0,
scan_sched_ev = {
ev = {
ev_queued = 0 '\000',
ev_cb = 0x2fabf <ble_ll_scan_event_proc>,
ev_arg = 0x20016db4 <g_ble_ll_scan_sm>,
ev_next = {
stqe_next = 0x0
}
}
},
scan_timer = {
bsp_timer = 0x2000c610 <nrf52_hal_timer5>,
cb_func = 0x2f925 <ble_ll_scan_timer_cb>,
cb_arg = 0x20016db4 <g_ble_ll_scan_sm>,
expiry = 616833867,
link = {
tqe_next = 0x20016f50 <g_ble_ll_sched_timer>,
tqe_prev = 0x0
}
},
scan_interrupted_ev = {
ev = {
ev_queued = 0 '\000',
ev_cb = 0x30441 <ble_ll_scan_interrupted_event_cb>,
ev_arg = 0x0,
ev_next = {
stqe_next = 0x0
}
}
},
duration_timer = {
bsp_timer = 0x2000c610 <nrf52_hal_timer5>,
cb_func = 0x30149 <ble_ll_scan_duration_timer_cb>,
cb_arg = 0x20016db4 <g_ble_ll_scan_sm>,
expiry = 616833516,
link = {
tqe_next = 0x20016de8 <g_ble_ll_scan_sm+52>,
tqe_prev = 0x0
}
},
period_timer = {
bsp_timer = 0x2000c610 <nrf52_hal_timer5>,
cb_func = 0x2fcc5 <ble_ll_scan_period_timer_cb>,
cb_arg = 0x20016db4 <g_ble_ll_scan_sm>,
expiry = 0,
link = {
tqe_next = 0x0,
tqe_prev = 0x0
}
},
duration_ticks = 51773,
period_ticks = 0,
ext_scanning = 0 '\000',
restart_timer_needed = 0 '\000',
cur_aux_data = 0x0,
scanp = 0x20016e58 <g_ble_ll_scan_sm+164>,
scanp_next = 0x0,
scanp_phys = {{
phy = 1 '\001',
own_addr_type = 1 '\001',
scan_filt_policy = 0 '\000',
configured = 1 '\001',
scan_type = 1 '\001',
scan_chan = 37 '%',
timing = {
interval = 1310,
window = 983,
start_time = 616832884
}
}, {
phy = 3 '\003',
own_addr_type = 0 '\000',
scan_filt_policy = 0 '\000',
configured = 0 '\000',
scan_type = 0 '\000',
scan_chan = 0 '\000',
timing = {
interval = 0,
window = 0,
start_time = 0
}
}}
}
```
```
(gdb) p p ble_ll_stats
No symbol "p" in current context.
(gdb)
```
```
(gdb) p p g_ble_ll_conn_create_sm
No symbol "p" in current context.
(gdb)
```
I will keep the DUT trapped in the debugger in this state. Please let me
know if there is any other globals you would like me instead while its in this
state to help you root cause the issue here.
----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
For queries about this service, please contact Infrastructure at:
us...@infra.apache.org
