Hi,
Currently, I am building an application with Bluetooth mesh and I tried to use Zephyr's logging v2 modules. However, when I build it I get MPU-fault errors at boot. For verification, I tried it also with a BT mesh sample project. For the test, I used the light fixture example and added the following configs. Each config gave the same result.
CONFIG_LOG_MODE_MINIMAL=n CONFIG_LOG2_MODE_DEFERRED=y CONFIG_LOG_BACKEND_UART=y
CONFIG_LOG_MODE_MINIMAL=n CONFIG_LOG2_MODE_IMMEDIATE=y CONFIG_LOG_BACKEND_UART=y
I also tried this with RTT backend instead of UART, but also same result.
CONFIG_LOG_BACKEND_RTT=n CONFIG_LOG_BACKEND_UART=y
Log ouput:
▒*** Booting Zephyr OS build v2.7.99-ncs1-1 ***system Initializing... [00:00:00.012,298] <err> os: ***** HARD FAULT ***** [00:00:00.012,329] <err> os: Fault escalation (see below) [00:00:00.012,329] <err> os: ***** MPU FAULT ***** [00:00:00.012,329] <err> os: Data Access Violation [00:00:00.012,359] <err> os: MMFAR Address: 0x20006eac [00:00:00.012,359] <err> os: r0/a1: 0x00000008 r1/a2: 0x00000195 r2/a3: 0x00000000 [00:00:00.012,390] <err> os: r3/a4: 0x00000004 r12/ip: 0x0000019d r14/lr: 0x00000000 [00:00:00.012,390] <err> os: xpsr: 0x61000000 [00:00:00.012,390] <err> os: Faulting instruction address (r15/pc): 0x0000128c [00:00:00.012,451] <err> os: >>> ZEPHYR FATAL ERROR 0: CPU exception on CPU 0 [00:00:00.012,481] <err> os: Current thread: 0x20003708 (main)
Using log minimal or logging v1 does work. Does anyone know how I can get this to work with logging v2?
Setup:
- nRF52833DK
- nRF Connect SDK v1.9.1
- Example: Bluetooth mesh Light fixture
