BSD 4.3 Kernel panic question

[Stefan Press]

   I was asked to post this to hopefully attain an answer to a problem
one of my colleagues is having with a Vax 11/750 running BSD 4.3 . It 
seems that every now and then the machine gets a:

      panic: KSP not valid
      trap type 2, code = 0, pc = 80000fa2
      panic: Reserved operand
      trap type 2, code = 0, pc = 80000fa2
      panic: Reserved operand
      trap type 2, code = 0, pc = 80000fa2
      panic: Reserved operand
      trap type 2, code = 0, pc = 80000fa2
      panic: Reserved operand
      trap type 2, code = 0, pc = 80000fa2
      panic: Reserved operand
      trap type 2, code = 0, pc = 80000fa2
      panic: Reserved operand

   The following was the result of the compiler utility "nm" on the kernel. 
We greped for addresses close to the failing pc =80000fa2.


      80000f00 T _Xwtime
      80000f30 T _Xmba3int
      80000f38 T _Xmba2int
      80000f40 T _Xmba1int
      80000f48 T _Xmba0int
      80000f5c T _Xcnrint
      80000f70 T _Xcnxint
      80000f84 T _Xhardclock
      80000fa4 T _Xsoftclock
      80000fb8 T _Xnetintr
      80000fdc T _Xconsdin
      80000ff4 T _Xconsdout


   Now, the only advice we were given so far is that we would like to
"increase the interrupt stack size".  What does this mean ?  How can we
do it ?  Does this mean the Kernel stack size ?  How do we do that ?

   Any input is very welcome.

Thanks in advance,

Stefan
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