On Oct 18, 2006, at 3:54 PM, Christos Zoulas wrote:

> Yes, such as referencing an invalid/non-existant register, but
> usually something related to the internal functioning of the
> cpu/co-processor and un-related to the memory/io subsystem.
> SIGSEGV/SIGBUS are the signals used to indicate a problem outside
> the cpu subsystem.

But I thought the issue here is that, with certain types of GPFs,  
there isn't enough info to send a proper SIGSEGV or SIGBUS, hence the  
need to send something else (like a SIGILL, which doesn't require as  
much extra data).

-- thorpej