6.0-CURRENT SNAP004 hangs on amr (long)

[Wilkinson, Alex]

    0n Wed, Jul 06, 2005 at 11:10:29AM -0600, Scott Long wrote: 

    >I wonder if the AMR interrupt is getting routed to the ata interrupt 
    >pins.  With the ata driver enabled, the OS gets stuck in an infinite
    >loop of trying to service what it thinks in an ata interrupt.  With
    >the ata driver disabled, the ata interrupt lines stay disabled and the
    >OS sees nothing.  Would it be possible to send an NMI to the machine
    >while it's hung with the ata driver enabled?  If not, we can probably
    >drop some simple printf into the ata interrupt handler.

Curious, how does one send a Non-Maskable-Interupt in FreeBSD ?

 -aW