problem with PRINTF when i use it in a thread different than Root

Embedded Devices NET+OS
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1

I’m working 7.5 NEt+Os with a mutlti thread application.
When the app in in ROOT thread , i can use printf function to write on a console
In all others threads , when i use the printf fonction, nothing is displayed on my console
I tried with some threads with a lower or a higher priority than my thread root(15) but nothing.
Is it a initialization problem of my thread ?

thanks for your help

2

can you reproduce this on a sample app with two trivial threads?

3

I found the problem
the global variable in netosConfigStdio()
naTxGlobalStdioFd should be initialized with the com handler