howto debug a complete hard reset

[Robert Huff]

Jeremie Le Hen writes:

>  This is probably a sysctl handler that is causing the reboot.  You can
>  run this one-liner to spot the culprit (use sh):
>  
>      for i in $(sysctl -Na); do sysctl $i >> ~/sysctl.out; sync; done
>  
>  Each sysctl will be called in turn and the output is appended to
>  a file, but the file will forcibly written to the disk before the
>  next occurence.

	Um ... it is my understanding sync(8) does not guarantee
pending i/o will be written before it returns, but merely requests
this happen irrespective of when it would normally occur.
	An I mistaken?


					Robert Huff