Avalanche of interruptions and stack sizes

[Rafael Morales]

Dear all,

I'm working with Leon3 at 25Mhz, RTEMS 4.10 and a list of devices that 
generates interruptions.

Nominally, there are 18 tasks running and the program is stable, but at 
certain time, one of the devices generates an avalanche of interruptions 
and the program stops suddenly.

The only way to stabilize  program in is to increase the BSP stack (If 
I'm not wrong it also increases the ISR and task stack).

But, why?,  Which is the effect of a avalanche of interruption in the 
stack size?

Any idea?

Thanks in advance.

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