From owner-freebsd-questions@FreeBSD.ORG  Tue Sep 20 14:14:36 2005
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Date: Tue, 20 Sep 2005 10:14:33 -0400
From: cs <cs-fbsd@ctzen.com>
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Subject: Need help on reboot issue (hang during shutdown)
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Hi,

I have a headless colo server and sometimes (after issuing the reboot 
command) it would hang and did not reboot.

I have enabled console logging:

normal reboot:

	Sep 19 13:24:26 foo kernel: Writing entropy file:
	Sep 19 13:26:30 foo kernel: Pre-seeding PRNG:
	Sep 19 13:26:30 foo kernel: kickstart
	Sep 19 13:26:30 foo kernel: .
	Sep 19 13:26:30 foo kernel: Loading configuration files.

reboot hang:

	Sep 19 16:56:06 foo kernel: Writing entropy file:
	Sep 19 16:56:06 foo kernel: .
	<tech support reset pc>
	Sep 19 19:40:00 foo kernel: Pre-seeding PRNG:
	Sep 19 19:40:00 foo kernel: kickstart
	Sep 19 19:40:00 foo kernel: .
	Sep 19 19:40:00 foo kernel: Loading configuration files.

The console log can't tell me much...

My question is that is there other ways/settings/etc for me to diagnose 
this issue ?  Like to find out exactly what was hanging ?

Thanx.

-cs