Understand OS_ERR_FIFO_OVF ?

Hi,

sometimes my program crashes and I do not know why. I have a error "OS_ERR_FIFO_OVF".
I read the information Keil :
http://www.keil.com/support/docs/3604.htm
and
http://www.keil.com/support/man/docs/rlarm/rlarm_ar_cfgfifosz.htm
I followed the advice but nothing happens.
I use a lot of interruptions in my program.

I'd like to know what interruptions are in the buffer "os_fifo[]" when my programm craches. It would give me a direction to look.

someone is how it works?

Thanks.
JB

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