On Wed, 10 Jun 1998 18:05:20 -0700 (MST) 
 Tim Rightnour <root@garbled.net> wrote:

 > # No... if it had been an error in user space, it would have been SIGSEGV.  But
 > # the address (a0) is in kernel space.
 > 
 > Well.. cc said "fatal signal 11"  I just assumed the mmu was saying "nothing
 > there fred"

Oh!  The kernel didn't panic?  Do you have "DEBUG" enabled in your kernel?
If so, that would explain why that spew was sent to the console :-)

 > # Let's take a look at what we have here:
 > # 
 > #       a0 == 0xffffffffc8000004.  That is in K1SEG, i.e. a mapped kernel
 > #       segment.
 > 
 > Curious, how did you know this?

Look at <machine/alpha_cpu.h> :-)  (I'm also somewhat familiar with the
architecture, and hav read the arch manual ... countless times :-)

Jason R. Thorpe                                       thorpej@nas.nasa.gov
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