Applications_nrf5340_audio error(-134)

[HaiwenChen]

I‘m tring to run nRF5340 Audio applications with two nRF5340 Audio boards, following at: https://developer.nordicsemi.com/nRF_Connect_SDK/doc/2.6.0/nrf/applications/nrf5340_audio/doc/building.html

I met two problems：

Gateway Device:

*** Booting nRF Connect SDK v3.5.99-ncs1 ***
GW [00:00:00.270,294] <inf> board_version: Compatible board/HW version found: 1.0.0
GW [00:00:00.294,738] <inf> audio_usb: Ready for USB host to send/receive.
GW [00:00:00.294,769] <inf> fw_info:
nRF5340 Audio nRF5340 Audio DK cpuapp
NCS base version: 2.6.0
Cmake run : Wed May 15 17:20:18 2024
GW [00:00:00.294,769] <inf> fw_info: ------- DEBUG BUILD -------
GW [00:00:00.294,769] <inf> fw_info: Compiled for GATEWAY device
GW [00:00:00.311,920] <inf> bt_mgmt_ctlr_cfg: Controller: SoftDevice: Version 5.4 (0x0d), Revision 8591
GW [00:00:00.312,103] <inf> bt_mgmt: Local identity addr: CD:28:C4:0F:1F:AE (random)
GW [00:00:00.313,018] <err> bt_bap_unicast_client: bt_iso_cig_create failed: -134
GW [00:00:00.313,049] <err> unicast_client: Failed to create unicast group: -134
GW [00:00:00.313,049] <err> main: ERR_CHK Err_code: [-134] @ line: 499
GW [00:00:00.313,049] <err> os: r0/a1: 0x00000003 r1/a2: 0x0000000b r2/a3: 0x0000000a
GW [00:00:00.313,079] <err> os: r3/a4: 0x0005e54f r12/ip: 0x200039d8 r14/lr: 0x0005e5d9
GW [00:00:00.313,079] <err> os: xpsr: 0x69100000
GW [00:00:00.313,079] <err> os: s[ 0]: 0x20001c10 s[ 1]: 0x0005e773 s[ 2]: 0x20002d88 s[ 3]: 0x00000004
GW [00:00:00.313,079] <err> os: s[ 4]: 0x20002ef8 s[ 5]: 0x0003e449 s[ 6]: 0x00000000 s[ 7]: 0x2001ecc0
GW [00:00:00.313,110] <err> os: s[ 8]: 0x2001ec90 s[ 9]: 0xffffffff s[10]: 0xffffffff s[11]: 0x0005e7bf
GW [00:00:00.313,110] <err> os: s[12]: 0x00007651 s[13]: 0x0006f36c s[14]: 0xffffff7a s[15]: 0x000001f3
GW [00:00:00.313,110] <err> os: fpscr: 0x2001ec90
GW [00:00:00.313,110] <err> os: Faulting instruction address (r15/pc): 0x00003afa
GW [00:00:00.313,140] <err> os: >>> ZEPHYR FATAL ERROR 3: Kernel oops on CPU 0
GW [00:00:00.313,140] <err> os: Current thread: 0x20005d38 (main)
GW [00:00:00.313,171] <err> error_handler: Caught system error -- reason 3. Entering infinite loop

Headset Left Device:

*** Booting nRF Connect SDK v3.5.99-ncs1 ***
HL [00:00:00.269,958] <inf> board_version: Compatible board/HW version found: 1.0.0
HL [00:00:00.322,326] <inf> fw_info: 
         nRF5340 Audio nRF5340 Audio DK cpuapp                      
         NCS base version: 2.6.0                            
         Cmake run : Wed May 15 17:06:53 2024
HL [00:00:00.322,326] <inf> fw_info: ------- DEBUG BUILD -------
HL [00:00:00.322,326] <inf> fw_info: HEADSET left device
HL [00:00:00.340,270] <inf> bt_mgmt_ctlr_cfg: Controller: SoftDevice: Version 5.4 (0x0d), Revision 8591
HL [00:00:00.340,454] <inf> bt_mgmt: Local identity addr: C6:94:B2:0B:35:28 (random)
HL [00:00:00.341,217] <err> bt_ascs: Failed to register ISO server -134
HL [00:00:00.343,627] <wrn> bt_hci_core: opcode 0x2036 status 0x01
HL [00:00:00.343,627] <err> bt_mgmt_adv: Unable to create a connectable extended advertising set: -5
HL [00:00:00.343,627] <err> main: ERR_CHK Err_code: [-5] @ line: 531
HL [00:00:00.343,658] <err> os: r0/a1:  0x00000003  r1/a2:  0x0000000b  r2/a3:  0x0000000a
HL [00:00:00.343,658] <err> os: r3/a4:  0x0005a0e9 r12/ip:  0x20002e90 r14/lr:  0x0005a173
HL [00:00:00.343,658] <err> os:  xpsr:  0x69100000
HL [00:00:00.343,658] <err> os: s[ 0]:  0x200016ec  s[ 1]:  0x0005a30d  s[ 2]:  0x2001cbd8  s[ 3]:  0x00000004
HL [00:00:00.343,688] <err> os: s[ 4]:  0x00000000  s[ 5]:  0x00000000  s[ 6]:  0x00039f7d  s[ 7]:  0x2001cc08
HL [00:00:00.343,688] <err> os: s[ 8]:  0x2001cbd8  s[ 9]:  0xffffffff  s[10]:  0xffffffff  s[11]:  0x0005a359
HL [00:00:00.343,688] <err> os: s[12]:  0x00000000  s[13]:  0x0006aebc  s[14]:  0xfffffffb  s[15]:  0x00000213
HL [00:00:00.343,688] <err> os: fpscr:  0x00039f7d
HL [00:00:00.343,719] <err> os: Faulting instruction address (r15/pc): 0x00003da6
HL [00:00:00.343,719] <err> os: >>> ZEPHYR FATAL ERROR 3: Kernel oops on CPU 0
HL [00:00:00.343,750] <err> os: Current thread: 0x200049a8 (main)
HL [00:00:00.343,750] <err> error_handler: Caught system error -- reason 3. Entering infinite loop

The SDK version is 2.6.0. What could be causing this? Maybe should change some config_files？Thanks in advance. 

[Susheel Nuguru]

The logs show that this could be a stack overflow and the current executing thread that faulted was main. So try increasing CONFIG_MAIN_STACK_SIZE in your prj.conf.

Also enable STACK_SENTINELS as shown here.

Thread Analyzer and Thread Monitor is good way to know your thread stack usage while in development phase of your project. 

[HaiwenChen]

Hi Susheel,

Your method is very effective, according to your suggestion I modified prj.conf(applications\nrf5340_audio) to add: CONFIG_MAIN_STACK_SIZE=4096, which was not originally available.

After recompiling, I can run the sample successfully.

In addition, I am new to Nordic chip, I want to develop the sample, could you please tell me where the sample source code is located? Because I compiled and flashed it using bash command:"python buildprog.py -c app -b debug -d both -p "instead of nRF Connect in VS Code.

Thanks again for your reply:)! ! !

[Susheel Nuguru]

Sorry for the late reply Haiwen, 

We have few public holidays in Norway this month and fewer working days. Glad that the main stack reconfiguration helped the issue. I will request my colleague Maria to help you with the samples and she is more expert in the Audio domain. Transferring this thread to her and thanks a ton for your patience so far.

[HaiwenChen]

The same problem happend in HEADSET Device again:

I've modified the CONFIG_MAIN_STACK_SIZE to 4096.

The GATEWAY device  run successfully:

[HaiwenChen]

I found that after flashing the sample(ncs\v2.6.0\zephyr\samples\bluetooth\unicast_audio_client or server):

then flash and run nRF5340 Audio this sample，the error ( ISO SERVER -134) occurred：