Stack overflow

[Learner]

Hello,

I have been running this program without any problem then I added some code to read and write to flash using NVS when the error shown below appeared.

I am running a single ( main() ) thread application in Segger Embedded Studio v5.34a.

*** Booting Zephyr OS build v2.4.99-ncs1-rc1 ***
[00:00:13.434,600] [1;31m<err> os: ***** USAGE FAULT *****
[00:00:13.434,600] [1;31m<err> os: Stack overflow (context area not valid)
[00:00:13.434,600] [1;31m<err> os: r0/a1: 0x00000000 r1/a2: 0x0000cbfd r2/a3: 0x00000000
[00:00:13.434,600] [1;31m<err> os: r3/a4: 0x0000cbfd r12/ip: 0x207bc4ae r14/lr: 0x77fadffe
[00:00:13.434,600] [1;31m<err> os: xpsr: 0xfdd9ca00
[00:00:13.434,600] [1;31m<err> os: Faulting instruction address (r15/pc): 0x05221210
[00:00:13.434,631] [1;31m<err> os: >>> ZEPHYR FATAL ERROR 2: Stack overflow on CPU 0
[00:00:13.434,631] [1;31m<err> os: Current thread: 0x20000668 (unknown)
[00:00:13.696,472] [1;31m<err> fatal_error: Resetting system

If I the solution is to increase the stack size, how do I do it?

Can someone please help?

Kind regards

Mohamed

[Simon]

If the function that caused the stack overflow is called from main, increasing CONFIG_MAIN_STACK_SIZE would be the solution then.

Best regards,

Simon

[Learner]

Thank you Simon.

I will have a look at the suggested links.

Will the .map file reveal the source of the problem?

Kind regards

Mohamed