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non-maskable interrupt?


Is it possible for a NIC card to generate a non-maskable interrupt, say if
it were malfunctioning?

On a general note, does the kernel define interrupt handling routines for
non-maskable interrupts, or is this not possible?  From what I have read,
it seems that non-maskable interrupts are generated when something
exceptionally bad happens such as an unrecoverable memory error.  Does
this imply that the system can only crash when such an interrupt is
generated or are there circumstances in which a non-maskable interrupt can
be handled and the system continue to function (even if it is in some
limited state)?

Thanks,

--Mike

Michael B. Rash
http://www.math.umd.edu/~mbr

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