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Date: Sat, 14 Apr 2012 08:59:42 -0400
To: Jeremie Le Hen <jeremie@le-hen.org>
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Cc: Alexander Best <arundel@freebsd.org>, freebsd-current@freebsd.org
Subject: Re: howto debug a complete hard reset
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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