Stack overflow (context area not valid) on ncs v2.4.2

RE: Stack overflow (context area not valid) on ncs v2.4.2

snowuyl — Wed, 29 Nov 2023 11:21:45 GMT

Thanks for your great support! No stack overflow issue after increasing stack size of flash thread to 8192.

RE: Stack overflow (context area not valid) on ncs v2.4.2

Susheel Nuguru — Wed, 29 Nov 2023 11:18:25 GMT

There is no generic answer to the stack size as it always depends on your application and can vary between application to application. You always need to know the stack sizes needed by different contexts when doing the application architecture. Check if enabling the Thread Analyzer can give you more hints on which thread is using up most of its stack so that you can increase it with something your software architect can suggest.

RE: Stack overflow (context area not valid) on ncs v2.4.2

snowuyl — Wed, 29 Nov 2023 11:04:48 GMT

Thanks for your reply! Do you have suggestions about stack size?

RE: Stack overflow (context area not valid) on ncs v2.4.2

Susheel Nuguru — Wed, 29 Nov 2023 11:03:21 GMT

check what you have for the below in your \build\zephyr\.config and increase those values in prj.conf

CONFIG_MAIN_STACK_SIZE for main stack and

increase the stack size for the thread named "flash thread" as it shows in your log.

RE: Stack overflow (context area not valid) on ncs v2.4.2

snowuyl — Wed, 29 Nov 2023 10:01:07 GMT

Thanks for your reply! How to increase the main and ISR stack size in per. conf file?

RE: Stack overflow (context area not valid) on ncs v2.4.2

Turbo J — Wed, 29 Nov 2023 09:57:58 GMT

Stack overflows tend to destroy important informtion for the RTOS to work.

Usually fixed by either turning the log level down (logs can use a ton of extra stack space) or increase the main and isr stack size in the project config.