nRF5340 audio application ZEPHYR FATAL ERROR in NCS v2.7.0

Question

Hello,

I'm using nRF5340 audio application with nRF Connect SDK v2.7.0 on nrf5340 Audio DK.

I didn't change anything in the sample code but only modifying the NRF5340_AUDIO_TRANSPORT_MODE to change it to bis headset.

When I burned the code, the error always occurred.

Here is the error log.

*** Booting nRF Connect SDK v2.7.0-5cb85570ca43 ***
*** Using Zephyr OS v3.6.99-100befc70c74 ***
HL [00:00:00.267,181] [0m<inf> board_version: [0;32mCompatible board/HW version found: 1.0.0[0m[0m
HL [00:00:00.291,992] [0m<inf> fw_info: [0;32m
	 nRHL [00:00:00.292,022] [0m<inf> fw_info: ------- DEBUG BUILD -------[0m
HL [00:00:00.292,022] [0m<inf> fw_info: [0;36mHEADSET left device[0m[0m
HL [00:00:00.319,580] [1;33m<wrn> bt_hci_core: opcode 0x203a status 0x01[0m
HL [00:00:00.319,580] [1;33m<wrn> bt_hci_core: Controller does not support 'LE_READ_MAX_ADV_DATA_LEN'. Assuming maximum length is 31 bytes.[0m
HL [00:00:00.356,719] [0m<inf> bt_mgmt_ctlr_cfg: Controller: SoftDevice: Version 5.4 (0x0d), Revision 8699[0m
HL [00:00:00.356,903] [0m<inf> bt_mgmt: Local identity addr: FE:F4:EA:7D:D7:B9 (random)[0m
HL [00:00:00.386,047] [1;33m<wrn> bt_hci_core: opcode 0x2041 status 0x01[0m
HL [00:00:00.386,077] [1;31m<err> main: Failed to start scanning[0m
HL [00:00:00.386,077] [1;31m<err> main: ERR_CHK Err_code: [-5] @ line: 481	[0m
HL [00:00:00.386,077] [1;31m<err> os: r0/a1:  0x00000003  r1/a2:  0x00000009  r2/a3:  0x00000008[0m
HL [00:00:00.386,108] [1;31m<err> os: r3/a4:  0x00000003 r12/ip:  0x20002848 r14/lr:  0x000530ad[0m
HL [00:00:00.386,108] [1;31m<err> os:  xpsr:  0x09100000[0m
HL [00:00:00.386,108] [1;31m<err> os: s[ 0]:  0x20001048  s[ 1]:  0x00053281  s[ 2]:  0x2001c828  s[ 3]:  0x00000004[0m
HL [00:00:00.386,138] [1;31m<err> os: s[ 4]:  0x2001c830  s[ 5]:  0xfffffffb  s[ 6]:  0x2001c828  s[ 7]:  0x2001c858[0m
HL [00:00:00.386,138] [1;31m<err> os: s[ 8]:  0x2001c830  s[ 9]:  0xffffffff  s[10]:  0xffffffff  s[11]:  0x000532c5[0m
HL [00:00:00.386,138] [1;31m<err> os: s[12]:  0x20004570  s[13]:  0x00063240  s[14]:  0xfffffffb  s[15]:  0x000001e1[0m
HL [00:00:00.386,138] [1;31m<err> os: fpscr:  0x01000003[0m
HL [00:00:00.386,138] [1;31m<err> os: Faulting instruction address (r15/pc): 0x00003dc8[0m
HL [00:00:00.386,169] [1;31m<err> os: >>> ZEPHYR FATAL ERROR 3: Kernel oops on CPU 0[0m
HL [00:00:00.386,199] [1;31m<err> os: Current thread: 0x20004570 (main)[0m
HL [00:00:00.386,199] [1;31m<err> error_handler: Caught system error -- reason 3. Entering infinite loop[0m

I have not encountered this problem when using either NCS v2.6.0 or NCS v2.2.0.

Is there anything else I need to modify in NCS v2.7.0?

LandyWang · Answer

I now know how this error occurs. 
 I did not check "Use sysbuild" when editing build configuration. 
 
 After I checked Use sybuild and rebuilt, I didn't encounter ZEPHYR FATAL ERROR again.