Stack Size

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1

Good morning everyone,

ps says:

2018-01-26 08:39:52,570 - INFO # pid | name | state Q | pri | stack ( used) | base addr | current 2018-01-26 08:39:52,618 - INFO # 1 | idle | pending Q | 15 | 128 ( 74) | 0x2252 | 0x228f 2018-01-26 08:39:52,666 - INFO # 2 | main | running Q | 7 | 512 ( 316) | 0x22d2 | 0x23e2 2018-01-26 08:39:52,714 - INFO # 3 | at86rf2xx | bl rx _ | 2 | 256 ( 230) | 0x27fe | 0x285f 2018-01-26 08:39:52,762 - INFO # 4 | dump_thread | bl rx _ | 8 | 1279 ( 1277) | 0x1ce5 | 0x2004 2018-01-26 08:39:52,811 - INFO # 5 | send_thread | bl rx _ | 9 | 1279 ( 1277) | 0x17e6 | 0x1b73 2018-01-26 08:39:52,842 - INFO # | SUM | > > 3454 ( 3174)

If I double the stack size for dump_thread and send_thread then again the used size indicated only two free bytes.

Is there a quick answer to it? Why is the used stack size growing right after the init, if I increase it? Does it indicate that the stack is too small anyway?

Thanks, Robert

2

Oh. Code at [1]

[1] https://gitlab.ibr.cs.tu-bs.de/hartung/ieee802154-radio-eval/blob/master/software/main.c

3

Is there a quick answer to it? Why is the used stack size growing right after the init, if I increase it? Does it indicate that the stack is too small anyway?

Or you have something in the init that loads tonnes of bytes on the stack immediately, e.g. a recursive function.

4

Hi,

5

works, thanks!