[ECOS] Spurious interrupt on ARM.

[Nick Garnett]

On 31/10/13 17:15, Andrew Parlane wrote:
> Looking at hal/arm/arch/current/src/vectors.S in IRQ:
> 
> We increment the scheduler lock and decrement it again in interrupt_end.
> 
> In the case of there being a spurious interrupt, we don't call 
> interrupt_end, and so the scheduler never gets decremented.
> 
> Am I missing something here?

interrupt_end() does get called. A spurious interrupt only causes the
code to skip calling an ISR by jumping to the spurious_IRQ label. From
there it follows the same code path and will call interrupt_end() as normal.

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