>1) I seem to get a lot of seemingly random program aborts.  When I use 
>gdb to look at the .core file, it always says that the program exitted 
>with a "bus error".  It happens quite a bit with ls especially, and it 
>even happened to routed during my last boot.  But immediately reexecuting 
>the same command almost always works.  This makes it "feel" like maybe 
>the program tried to do some I/O, and then forgot to wait for the I/O to 
>complete!

Also sounds like it could be hardware going bad.  Assuming this is
hardware that has worked fine in the past, maybe you have a memory
chip dying, or the fan/heat sink worked loose on your CPU, or....

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  Michael L. VanLoon                                 michaelv@HeadCandy.com
       --<  Free your mind and your machine -- NetBSD free un*x  >--
     NetBSD working ports: 386+PC, Mac, Amiga, HP300, Sun3, Sun4, PC532,
                           DEC pmax (MIPS R2k/3k), DEC/AXP (Alpha)
     NetBSD ports in progress: VAX and others...
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