Interrupt recursion smashes kernel memory

Mon Jan 14 06:01:41 PST 2008

Matthew Dillon wrote:
    I think the solution is to use TD_NEST_COUNT (curthread->td_nest_count)
    to prevent recursive interrupts from blowing up the stack.
Seems good.

    Please try this patch.
Works and doesn't break things.  However, I'm not sure if this panic is 
100% reproducable.  At least it is no regression.  Please commit.

Thanks,
  simon
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