MSP430F5437A: Consequences of a RST pulse width less than the minimum required.

The minimum RST pulse width requirement for the MSP430 is 2us.
What would be the consequences if this pin saw a pulse width less than 2us (say around 1us).
Would the MSP completely ignore any pulse that's less than 2us, or would there be undesired/undocumented consequences?

We're seeing some occasional stack pointer corruption type issues and we're looking to see if a less than 2us RST pulse (pretty much noise on the RST line) could cause such behavior?

Thanks