Re: [ECOS] Thread stack

[Andrew Parlane <andrewp at carallon dot com>]

Hi Mykhailo,

Have a look at the following ECOS configuration options under the ISO C 
Library package:
CYGSEM_LIBC_MAIN_STACK_FROM_SYSTEM - if not selected the app has to 
assign the stack.
CYGNUM_LIBC_MAIN_DEFAULT_STACK_SIZE - you would have to recompile the 
ecos configuration project each time you change this.

Either way you'll have to recompile the ecos config project at least 
once, but with the former, you would then only need to recompile the app 
each time to change the main thread's stack size.

Hope that helps,

Andrew Parlane

On 09/11/2011 07:34, Mykhailo Lytvyn wrote:
> Hello all,
>
> it seems I have a problem with stack size in multi-threaded application.
> The stack size allocation before crush ("Bad next thread") is:
>
> Thread name: Idle Thread,                Total stack: 4608,      Stack
> used: 1140,       Remaining in stack: 3468
>
> Thread name: main,                       Total stack: 12288, Stack used:
> 12112,  Remaining in stack: 176
>
> Thread name: SharedMemoryReceiver,       Total stack: 8192,  Stack used:
> 3564,   Remaining in stack: 4628
>
> Thread name: task1,                      Total stack: 8192,  Stack used:
> 3328,   Remaining in stack: 4864
>
> Thread name: task2,                      Total stack: 8192,      Stack
> used: 3888,       Remaining in stack: 4304
>
> Thread name: task3,                      Total stack: 8192,      Stack
> used: 368,        Remaining in stack: 7824
>
> Thread name: task4,                      Total stack: 8192,      Stack
> used: 4328,
> Remaining in stack: 3864
>
> Thread name: task5,                      Total stack: 8192,      Stack
> used: 4960,       Remaining in stack: 3232
>
>
> It seems there is too small stack size  in main thread (the free space in
> this stack decreased from 640 bytes at the beginning of software running
> to 176 at the very end). I would like to ask is this possible to increase
> stack size for the main thread without recompiling eCOS kernel? I have
> checked eCOS doc and does not see any good reference for stack issues. Can
> someone point me to good reference on this?
>
> Thank you in advance!


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