On Thu, 23 Jul 1998 17:26:29 +0200 (MET DST) 
 Lennart Augustsson <augustss@cs.chalmers.se> wrote:

 > Are the bus_dma functions supposed to be safe to call in an
 > interrupt context?
 > 
 > I'm freeing some memory in an interrupt routine and I keep
 > getting panics.

Err... they should be, yes... but if you're loading a DMA map, or whatever,
you should protect that section w/ spl...().  If allocating memory, splimp().
If loading a DMA map, w/ spl<whatever_you_device_interrupts_at>().

Jason R. Thorpe                                       thorpej@nas.nasa.gov
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