The RTT log crashes frequently

RE: The RTT log crashes frequently

Einar Thorsrud — Fri, 29 Nov 2024 14:36:03 GMT

Hi,

The question is how the logger end up in a situation where it is attempting to write an empty line (which the assert tells us is happening). I suspect the most efficient is to debug and see if we can learn more from that. I fyou don't have any progress on your end, can you share a project that reproduce this issue so that I can test on my end?

RE: The RTT log crashes frequently

yuanFang — Wed, 27 Nov 2024 02:35:03 GMT

HI,

When I increase, run a few times, still will appear the crash problem.

00> 
00> [00:01:09.302,703] [1;31m<err> os: r0/a1:  0x00000004  r1/a2:  0x0000007d  r2/a3:  0x00000000
00> [00:01:09.302,734] [1;31m<err> os: r3/a4:  0x0003871d r12/ip:  0x00000000 r14/lr:  0x00029c39
00> [00:01:09.302,734] [1;31m<err> os:  xpsr:  0x61000000[0m
00> [00:01:09.302,764] [1;31m<err> os: Faulting instruction address (r15/pc): 0x0004346a[0m
00> [00:01:09.302,795] [1;31m<err> os: >>> ZEPHYR FATAL ERROR 4: Kernel panic on CPU 0[0m
00> [00:01:09.302,856] [1;31m<err> os: Current thread: 0x20002548 (logging)[0m
00> [00:01:14.634,674] [1;31m<err> fatal_error: Resetting system

pc/r15 ：v2.6.0/zephyr/lib/os/assert.c:44

lr/r14 ： v2.6.0/zephyr/subsys/logging/backends/log_backend_rtt.c:128

The crash site is the same as before.

Thanks

RE: The RTT log crashes frequently

yuanFang — Wed, 27 Nov 2024 02:08:22 GMT

Hi,

When I increase the value of CONFIG_LOG_BACKEND_RTT_MESSAGE_SIZE from 128 to 256, the running time is extended. There is no crash, but "messages droped" occurs.

Here is log.

00> [00:18:32.650,421] <inf> app: log buf size==========>>>>>>>>>>>>(4092|0|4068|0)
00> [00:18:32.651,000] <inf> app: AccWorkingMode(5) accWakeEventMask(0x3)
00> 
00> [00:18:32.651,458] <inf> app: Motion(T4 M1 S2 D10 I(0:0x0))
00> 
00> [00:18:32.652,343] <inf> app: Main(0x0:0 mv) Bat(0xb:72 mv) isBatteryValid(0)
00> 
00> [00:18:32.652,862] <inf> app: vCheck(11:72 mv) Low(0) High(0).
00> 
00> [00:18:33.150,085] <inf> app: Filters matched. Address: E6:42:55:9E:CA:C8 (random) connectable: 0 
00> [00:18:33.150,115] <inf> app: scan:
00>                               11 07 93 26 ce 8f 89 8f  57 72 14 1d 48 fc 01 00 |...&.... Wr..H...
00>                               cd 6f 06 ff 00 11 8a 23  04                      |.o.....# .       
00> [00:18:33.653,594] <inf> app: timer_s: 1112 Intstat(0x0) Sleep(2) WD(6174) SAlarm(6114) NoTSetMotionFlag(0)
00> 
00> [00:18:33.657,043] <inf> app: IntExtstatus(0x0)
00> 
00> [00:18:33.657,379] <inf> app: APM onoff(1) state(0)
00> 
00> [00:18:33.657,775] <inf> app: log buf size==========>>>>>>>>>>>>(4092|0|4068|0)
00> [00:18:33.658,691] <inf> app: AccWorkingMode(5) accWakeEventMask(0x3)
00> 
00> [00:18:33.659,149] <inf> app: Motion(T4 M1 S2 D10 I(0:0x0))
00> 
00> [00:18:33.659,606] <inf> app: Main(0x0:0 mv) Bat(0x7:59 mv) isBatteryValid(0)
00> 
00> [00:18:33.660,125] <inf> app: vCheck(7:59 mv) Low(0) High(0).
00> 
00> [00:18:33.971,893] <inf> app: Filters matched. Address: CF:EF:94:1D:32:20 (random) connectable: 0 
00> [00:18:33.971,923] <inf> app: scan:
00>                               11 07 93 26 ce 8f 89 8f  57 72 14 1d 48 fc 01 00 |...&.... Wr..H...
00>                               cd 6f 06 ff 00 11 01 a1  05                      |.o...... .       
00> [00:18:34.155,700] <inf> app: Filters matched. Address: E6:42:55:9E:CA:C8 (random) connectable: 0 
00> [00:18:34.155,731] <inf> app: scan:
00>                               11 07 93 26 ce 8f 89 8f  57 72 14 1d 48 fc 01 00 |...&.... Wr..H...
00>                               cd 6f 06 ff 00 11 8a 23  04                      |.o.....# .       
00> [00:18:34.660,919] <inf> app: timer_s: 1113 Intstat(0x0) Sleep(2) WD(6173) SAlarm(6113) NoTSetMotionFlag(0)
00> 
00> [00:18:34.666,625] <inf> app: IntExtstatus(0x0)
00> 
00> [00:18:34.667,297] <inf> app: Filters matched. Address: E6:42:55:9E:CA:C8 (random) connectable: 0 
00> [00:18:34.667,358] <inf> app: scan:
00>                               11 07 93 26 ce 8f 89 8f  57 72 14 1d 48 fc 01 00 |...&.... Wr..H...
00>                               cd 6f 06 ff 00 11 8a 23  04                      |.o.....# .       
00> [00:18:34.670,166] <inf> app: APM onoff(1) state(0)
00> 
00> [00:18:34.670,562] <inf> app: log buf size==========>>>>>>>>>>>>(4092|0|4068|0)
00> [00:18:34.671,051] <inf> app: AccWorkingMode(5) accWakeEventMask(0x3)
00> 
00> [00:18:34.671,508] <inf> app: Motion(T4 M1 S2 D10 I(0:0x0))
00> 
00> [00:18:34.672,393] <inf> app: Main(0x0:0 mv) Bat(0x7:59 mv) isBatteryValid(0)
00> 
00> [00:18:34.672,912] <inf> app: vCheck(7:59 mv) Low(0) High(0).
00> 
00> [00:18:34.844,787] <inf> app: Filters matched. Address: E6:8F:DE:53:C2:3E (random) connectable: 0 
00> [00:18:34.844,848] <inf> app: scan:
00>                               11 07 93 26 ce 8f 89 8f  57 72 14 1d 48 fc 01 00 |...&.... Wr..H...
00>                               cd 6f 06 ff 00 11 08 f6  00                      |.o...... .       
00> [00:18:34.986,602] <inf> app: Filters matched. Address: CF:EF:94:1D:32:20 (random) connectable: 0 
00> [00:18:34.986,633] <inf> app: scan:
00>                               11 07 93 26 ce 8f 89 8f  57 72 14 1d 48 fc 01 00 |...&.... Wr..H...
00>                               cd 6f 06 ff 00 11 01 a1  05                      |.o...... .       
00> [00:18:35.168,518] <inf> app: Filters matched. Address: E6:42:55:9E:CA:C8 (random) coo[00:18:35.168,548] <inf> app: scan:
00>                               11 07 93 26 ce 8f 89 8f  57 72 14 1d 48 fc 01 00 |...&.... Wr..H...
00>                               cd 6f 06 ff 00 11 8a 23  04                      |.o.....# .       
00> [00:18:35.348,236] <inf> app: Filters matched. Address: E6:8F:DE:53:C2:3E (random) connectable: 0 
00> [00:18:35.348,266] <inf> app: scan:
00>                               11 07 93 26 ce 8f 89 8f  57 72 14 1d 48 fc 01 00 |...&.... Wr..H...
00>                               cd 6f 06 ff 00 11 08 f6  00                      |.o...... .       
00> [00:18:35.667,327] <inf> app: Filters matched. Address: E6:42:55:9E:CA:C8 (random) connectable: 0 
00> [00:18:35.667,358] <inf> app: scan:
00>                               11 07 93 26 ce 8f 89 8f  57 72 14 1d 48 fc 01 00 |...&.... Wr..H...
00>                               cd 6f 06 ff 00 11 8a 23  04                      |.o.....# .       
00> [00:18:35.673,645] <inf> app: timer_s: 1114 Intstat(0x0) Sleep(2) WD(6172) SAlarm(6112) NoTSetMotionFlag(0)
00> 
00> [00:18:35.682,006] <inf> app: IntExtstatus(0x0)
00> 
00> [00:18:35.682,708] <inf> app: APM onoff(1) state(0)
00> 
00> [00:18:35.683,105] <inf> app: log buf size==========>>>>>>>>>>>>(4092|468|4068|0)
00> [00:18:35.683,685] <inf> app: AccWorkingMode(5) accWakeEventMask(0x3)
00> 
00> [00:18:35.684,143] <inf> app: Motion(T4 M1 S2 D10 I(0:0x0))
00> 
00> [00:18:35.684,600] <inf> app: Main(0x0:0 mv) Bat(0xc:75 mv) isBatteryValid(0)
00> 
00> [00:18:35.685,119] <inf> app: vCheck(12:75 mv) Low(0) High(0).
00> 
00> nnectable: 0 
00> [00:18:36.178,222] <inf> app: Filters matched. Address: E6:42:55:9E:CA:C8 (random) connectable: 0 
00> [00:18:36.178,253] <inf> app: scan:
00>                               11 07 93 26 ce 8f 89 8f  57 72 14 1d 48 fc 01 00 |...&.... Wr..H...
00>                               cd 6f 06 ff 00 11 8a 23  04                      |.o.....# .       
00> [00:18:36.680,328] <inf> app: Filters matched. Address: E6:42:55:9E:CA:C8 (random) connectable: 0 
00> [00:18:36.680,358] <inf> app: scan:
00>                               11 07 93 26 ce 8f 89 8f  57 72 14 1d 48 fc 01 00 |...&.... Wr..H...
00>                               cd 6f 06 ff 00 11 8a 23  04                      |.o.....# .       
00> [00:18:36.686,248] <inf> app: timer_s: 1115 Intstat(0x0) Sleep(2) WD(6171) SAlarm(6111) NoTSetMotionFlag(0)
00> 
00> [00:18:36.691,528] <inf> app: IntExtstatus(0x0)
00> 
00> [00:18:36.691,894] <inf> app: APM onoff(1) state(0)
00> 
00> [00:18:36.692,291] <inf> app: log buf size==========>>>>>>>>>>>>(4092|1028|4068|0)
00> [00:18:36.692,779] <inf> app: AccWorkingMode(5) accWakeEventMask(0x3)
00> 
00> [00:18:36.693,237] <inf> app: Motion(T4 M1 S2 D10 I(0:0x0))
00> 
00> [00:18:36.693,695] <inf> app: Main(0x0:0 mv) Bat(0x8:63 mv) isBatteryValid(0)
00> 
00> [00:18:36.694,213] <inf> app: vCheck(8:63 mv) Low(0) High(0).
00> 
00> [00:18:36.864,776] <inf> app: Filters matched. Address: E6:8F:DE:53:C2:3E (random) connectable: 0 
00> [00:18:36.864,807] <inf> app: scan:
00>                               11 07 93 26 ce 8f 89 8f  57 72 14 1d 48 fc 01 00 |...&.... Wr..H...
00>                               cd 6f 06 ff 00 11 08 f6  00                      |.o...... .       
00> [00:18:36.939,331] <inf> app: Filters matched. Address: F2:5D:69:92:4B:65 (random) connectable: 0 
00> [00:18:36.939,361] <inf> app: scan:
00>                               11 07 93 26 ce 8f 89 8f  57 72 14 1d 48 fc 01 00 |...&.... Wr..H...
00>                               cd 6f 06 ff 00 11 15 6e  05                      |.o.....n .       
00> [00:18:37.369,781] <inf> app: Filters matched. Address: E6:8F:DE:53:C2:3E (random) connectable: 0 
00> [00:18:37.369,812] <inf> app: scan:
00>                               11 07 93 26 ce 8f 89 8f  57 72 14 1d 48 fc 01 00 |...&.... Wr..H...
00>                               cd 6f 06 ff 00 11 08 f6  00                      |.o...... .       
00> [00:18:37.694,946] <inf> app: timer_s: 1116 Intstat(0x0) Sleep(2) WD(6170) SAlarm(6110) NoTSetMotionFlag(0)
00> 
00> [00:18:37.702,392] <inf> app: IntExtstatus(0x0)
00> 
00> [00:18:37.702,728] <inf> app: APM onoff(1) state(0)
00> 
00> [00:18:37.703,125] <inf> app: log buf size==========>>>>>>>>>>>>(4092|1708|4068|0)
00> [00:18:37.703,643] <inf> app: AccWorkingMode(5) accWakeEventMask(0x3)
00> 
00> [00:18:37.704,101] <inf> app: Motion(T4 M1 S2 D10 I(0:0x0))
00> 
00> [00:18:37.704,559] <inf> app: Main(0x0:0 mv) Bat(0xb:72 mv) isBatteryValid(0)
00> 
00> [00:18:37.705,078] <inf> app: vCheck(11:72 mv) Low(0) High(0).
00> 
00> [00:18:37.940,093] <inf> app: Filters matched. Address: FE:E7:5E:3E:59:F5 (random) connectable: 0 
00> [00:18:37.940,124] <inf> app: scan:
00>                               11 07 93 26 ce 8f 89 8f  57 72 14 1d 48 fc 01 00 |...&.... Wr..H...
00>                               cd 6f 06 ff 00 11 00 a1  05                      |.o...... .       
00> [00:18:37.955,505] <inf> app: Filters matched. Address: F2:5D:69:92:4B:65 (random) connectable: 0 
00> [00:18:37.955,535] <inf> app: scan:
00>                               11 07 93 26 ce 8f 89 8f  57 72 14 1d 48 fc 01 00 |...&.... Wr..H...
00>                               cd 6f 06 ff 00 11 15 6e  05                      |.o.....n .       
00> [00:18:38.376,403] <inf> app: Filters matched. Address: E6:8F:DE:53:C2:3E (random) connectable: 0 
00> [00:18:38.376,434] <inf> app: scan:
00>                               11 07 93 26 ce 8f 89 8f  57 72 14 1d 48 fc 01 00 |...&.... Wr..H...
00>                               cd 6f 06 ff 00 11 08 f6  00                      |.o...... .       
00> [00:18:38.705,810] <inf> app: timer_s: 1117 Intstat(0x0) Sleep(2) WD(6169) SAlarm(6109) NoTSetMotionFlag(0)
00> 
00> [00:18:38.713,256] <inf> app: IntExtstatus(0x0)
00> 
00> [00:18:38.713,592] <inf> app: APM onoff(1) state(0)
00> 
00> [00:18:38.713,989] <inf> app: log buf size==========>>>>>>>>>>>>(4092|2388|4068|0)
00> [00:18:38.714,508] <inf> app: AccWorkingMode(5) accWakeEventMask(0x3)
00> 
00> [00:18:38.714,965] <inf> app: Motion(T4 M1 S2 D10 I(0:0x0))
00> 
00> [00:18:38.715,423] <inf> app: Main(0x0:0 mv) Bat(0xc:75 mv) isBatteryValid(0)
00> 
00> [00:18:38.715,942] <inf> app: vCheck(12:75 mv) Low(0) High(0).
00> 
00> [00:18:38.968,170] <inf> app: Filters matched. Address: F2:5D:69:92:4B:65 (random) connectable: 0 
00> [00:18:38.968,231] <inf> app: scan:
00>                               11 07 93 26 ce 8f 89 8f  57 72 14 1d 48 fc 01 00 |...&.... Wr..H...
00>                               cd 6f 06 ff 00 11 15 6e  05                      |.o.....n .       
00> [00:18:39.479,248] <inf> app: Filters matched. Address: F2:5D:69:92:4B:65 (random) connectable: 0 
00> [00:18:39.479,278] <inf> app: scan:
00>                               11 07 93 26 ce 8f 89 8f  57 72 14 1d 48 fc 01 00 |...&.... Wr..H...
00>                               cd 6f 06 ff 00 11 15 6e  05                      |.o.....n .       
00> [00:18:39.716,674] <inf> app: timer_s: 1118 Intstat(0x0) Sleep(2) WD(6168) SAlarm(6108) NoTSetMotionFlag(0)
00> 
00> [00:18:39.721,832] <inf> app: IntExtstatus(0x0)
00> 
00> [00:18:39.722,198] <inf> app: APM onoff(1) state(0)
00> 
00> [00:18:39.722,564] <inf> app: log buf size==========>>>>>>>>>>>>(4092|2948|4068|0)
00> [00:18:39.723,083] <inf> app: AccWorkingMode(5) accWakeEventMask(0x3)
00> 
00> [00:18:39.723,541] <inf> app: Motion(T4 M1 S2 D10 I(0:0x0))
00> 
00> [00:18:39.723,999] <inf> app: Main(0x0:0 mv) Bat(0x6:56 mv) isBatteryValid(0)
00> 
00> [00:18:39.724,517] <inf> app: vCheck(6:56 mv) Low(0) High(0).
00> 
00> [00:18:39.956,604] <inf> app: Filters matched. Address: FE:E7:5E:3E:59:F5 (random) connectable: 0 
00> [00:18:39.956,665] <inf> app: scan:
00>                               11 07 93 26 ce 8f 89 8f  57 72 14 1d 48 fc 01 00 |...&.... Wr..H...
00>                               cd 6f 06 ff 00 11 00 a1  05                      |.o...... .       
00> [00:18:39.979,675] <inf> app: Filters matched. Address: F2:5D:69:92:4B:65 (random) connectable: 0 
00> [00:18:39.979,705] <inf> app: scan:
00>                               11 07 93 26 ce 8f 89 8f  57 72 14 1d 48 fc 01 00 |...&.... Wr..H...
00>                               cd 6f 06 ff 00 11 15 6e  05                      |.o.....n .       
00> [00:18:40.480,438] <inf> app: Filters matched. Address: F2:5D:69:92:4B:65 (random) connectable: 0 
00> [00:18:40.480,468] <inf> app: scan:
00>                               11 07 93 26 ce 8f 89 8f  57 72 14 1d 48 fc 01 00 |...&.... Wr..H...
00>                               cd 6f 06 ff 00 11 15 6e  05                      |.o.....n .       
00> [00:18:40.725,250] <inf> app: timer_s: 1119 Intstat(0x0) Sleep(2) WD(6167) SAlarm(6107) NoTSetMotionFlag(0)
00> 
00> [00:18:40.732,696] <inf> app: IntExtstatus(0x0)
00> 
00> [00:18:40.733,032] <inf> app: APM onoff(1) state(0)
00> 
00> [00:18:40.733,428] <inf> app: log buf size==========>>>>>>>>>>>>(4092|3628|4068|0)
00> [00:18:40.733,947] <inf> app: AccWorkingMode(5) accWakeEventMask(0x3)
00> 
00> [00:18:40.734,405] <inf> app: Motion(T4 M1 S2 D10 I(0:0x0))
00> 
00> [00:18:40.734,863] <inf> app: Main(0x0:0 mv) Bat(0x7:59 mv) isBatteryValid(0)
00> 
00> [00:18:40.735,382] <inf> app: vCheck(7:59 mv) Low(0) High(0).
00> 
00> [00:18:40.970,092] <inf> app: Filters matched. Address: FE:E7:5E:3E:59:F5 (random) connectable: 0 
00> --- 1 messages dropped ---
00> [00:18:40.970,153] <inf> app: scan:
00>                               11 07 93 26 ce 8f 89 8f  57 72 14 1d 48 fc 01 00 |...&.... Wr..H...
00>                               cd 6f 06 ff 00 11 00 a1  05                      |.o...... .       
00> [00:18:41.040,771] <inf> app: Filters matched. Address: CF:EF:94:1D:32:20 (random) connectable: 0 
00> [00:18:41.040,802] <inf> app: scan:
00>                               11 07 93 26 ce 8f 89 8f  57 72 14 1d 48 fc 01 00 |...&.... Wr..H...
00>                               cd 6f 06 ff 00 11 01 a1  05                      |.o...... .       
00> --- 1 messages dropped ---
00> --- 1 messages dropped ---
00> --- 1 messages dropped ---
00> --- 1 messages dropped ---
00> --- 1 messages dropped ---
00> --- 1 messages dropped ---
00> --- 1 messages dropped ---
00> --- 7 messages dropped ---
00> --- 1 messages dropped ---
00> --- 1 messages dropped ---
00> --- 1 messages dropped ---
00> --- 1 messages dropped ---
00> --- 1 messages dropped ---
00> --- 1 messages dropped ---
00> --- 1 messages dropped ---
00> --- 7 messages dropped ---
00> --- 1 messages dropped ---
00> --- 1 messages dropped ---
00> --- 1 messages dropped ---
00> --- 1 messages dropped ---
00> --- 1 messages dropped ---
00> --- 1 messages dropped ---
00> --- 1 messages dropped ---
00> --- 3 messages dropped ---
00> --- 1 messages dropped ---
00> --- 1 messages dropped ---
00> --- 1 messages dropped ---
00> --- 1 messages dropped ---
00> --- 1 messages dropped ---
00> --- 1 messages dropped ---
00> --- 1 messages dropped ---
00> --- 3 messages dropped ---
00> --- 1 messages dropped ---
00> --- 1 messages dropped ---
00> --- 1 messages dropped ---
00> --- 1 messages dropped ---
00> --- 1 messages dropped ---
00> --- 1 messages dropped ---
00> --- 1 messages dropped ---
00> --- 7 messages dropped ---
00> --- 1 messages dropped ---
00> --- 1 messages dropped ---
00> --- 1 messages dropped ---
00> --- 1 messages dropped ---
00> --- 1 messages dropped ---
00> --- 1 messages dropped ---
00> --- 1 messages dropped ---
00> --- 9 messages dropped ---
00> --- 1 messages dropped ---
00> --- 1 messages dropped ---
00> --- 1 messages dropped ---
00> --- 1 messages dropped ---
00> --- 1 messages dropped ---
00> --- 1 messages dropped ---
00> --- 1 messages dropped ---

Focus on the change to the second value

"[00:18:40.733,428] <inf> app: log buf size==========>>>>>>>>>>>>(4092|3628|4068|0)"

It works fine when buf_use is at 0, but problems start to occur when buf_use increases.

I hope this finding helps.

void ptint_log_buff_size()
{
    log_mem_get_usage(&buf_size,&buf_use);
    log_mem_get_max_usage(&max_buf);
    pf_log_raw(1,"log buf size==========>>>>>>>>>>>>(%d|%d|%d|%d)",buf_size,buf_use,max_buf,log_buffered_cnt());
}

If you need to do any other experiments, please ask.

looking forward to your reply.

Thanks

RE: The RTT log crashes frequently

Einar Thorsrud — Tue, 26 Nov 2024 14:39:52 GMT

Hi,

I am not sure, to be honest. I have not been able to reproduce or understand exactly how this happens. However, I wonder if it could help to increase CONFIG_LOG_BACKEND_RTT_MESSAGE_SIZE a bit from the default value. Does that make a difference?

RE: The RTT log crashes frequently

yuanFang — Mon, 25 Nov 2024 09:01:11 GMT

Hi,

Do you have any good ways to circumvent this problem?

When I use the pf_log_raw() function to print, each statement has a newline. Could it have something to do with that?

Something like that.

00> [00:00:13.221,008] <inf> app: CT75 Temp: tmpVar = 18c0, temp = 247
00> 
00> [00:00:13.221,466] <inf> app: AccWorkingMode(0) accWakeEventMask(0x0)
00> 
00> [00:00:13.221,923] <inf> app: Main(0x0:0 mv) Bat(0x578:4424 mv) isBatteryValid(1)
00> 
00> [00:00:13.222,473] <inf> app: Bat2(0x581:4452 mv) Select bat(1)
00> 
00> [00:00:13.222,900] <inf> app: vCheck(0:0 mv) Low(0) High(0).
00> 
00> [00:00:13.224,578] <inf> app: MCU Temperature: 23, ACC Temperature: 24
00> 
00> [00:00:13.259,887] <inf> app: Pressure (Pa) 10236
00> 
00> [00:00:13.317,993] <inf> app: IO_CMD(0xcf) len(1) Value:
00> 
00> [00:00:13.318,450] <inf> app: 07 
00> 
00> [00:00:13.318,786] <inf> app: .  
00> 
00> [00:00:13.319,305] <inf> app: 24 08 cf 07 f0 00 e6 00 f7 00 5c 0d 
00> 
00> [00:00:13.319,793] <inf> app: $  .  .  .  .  .  .  .  .  .  \  .  
00> 
00> [00:00:13.320,465] <inf> app: IO_CMD(0xba) len(0) Value:

Thanks

RE: The RTT log crashes frequently

yuanFang — Mon, 25 Nov 2024 08:56:32 GMT

Hi,

Without Bluetooth, the pf_log_raw() function ran for three days without problems.

Using LOG_INF() to print broadcast packets and BROADCAST RESPONSE packets causes frequent crashes when Bluetooth is on.

static void scan_filter_match(struct bt_scan_device_info *device_info,
                struct bt_scan_filter_match *filter_match,
                bool connectable)
{
    char addr[BT_ADDR_LE_STR_LEN];

    bt_addr_le_to_str(device_info->recv_info->addr, addr, sizeof(addr));

    LOG_INF("Filters matched. Address: %s connectable: %d ",addr, connectable);

    if(device_info->recv_info->adv_type == BT_GAP_ADV_TYPE_ADV_SCAN_IND)
    {
        // LOG_HEXDUMP_INF(device_info->adv_data->data,device_info->adv_data->len,"scan:");
    }
}

looking forward to your reply.

Thanks

RE: The RTT log crashes frequently

Einar Thorsrud — Mon, 25 Nov 2024 08:42:56 GMT

Hi,

It seems the assert at line 125 detected an issue (I expect you will get the exact line number if you test with a debug buidl without optimization):

static int line_out_drop_mode(void)
{
	/* line cannot be empty */
	__ASSERT_NO_MSG(line_pos > line_buf);
...

So something is wrong internally as it is attempting to write an empty line (there is nothing left to write). I have not found any other references for this though I am not sure how you can end up in this state. Is it so that this only happens when you call your pf_log_raw() function? Does it matter from where you call it (thread or ISR, and if a thread, the priority of the thread)?

RE: The RTT log crashes frequently

yuanFang — Mon, 25 Nov 2024 01:14:49 GMT

hello,

Do you have any good suggestions?

The project is about to be done, and it has been delayed for a long time by the log problem.

looking forward to your reply.

Thanks

RE: The RTT log crashes frequently

yuanFang — Thu, 21 Nov 2024 02:00:50 GMT

hello:

Thank you for your reply

r15/pc: /v2.6.0/zephyr/lib/os/assert.c:44.

r14/lr: /zephyr/subsys/logging/backends/log_backend_rtt.c:128

Looking forward to your reply

Thanks

RE: The RTT log crashes frequently

Einar Thorsrud — Wed, 20 Nov 2024 13:26:00 GMT

Hi,

I do not immediately have an explaantion for this. Can you check the faulting address from the log with addr2line and see in which file and line number this is? (0x00043422 in this case but it will change if you make any modifications and re-build)