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From: Travis Mikalson <bofh@terranova.net>
Subject: Re: kern/172952: 9.1 hangs on reboot after all buffers synced
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The following reply was made to PR kern/172952; it has been noted by GNATS.

From: Travis Mikalson <bofh@terranova.net>
To: bug-followup@FreeBSD.org, Andriy Gapon <avg@FreeBSD.org>
Cc:  
Subject: Re: kern/172952: 9.1 hangs on reboot after all buffers synced
Date: Mon, 29 Oct 2012 15:17:03 -0400

 After putting this pre-production system into its final configuration,
 (installing the base system to a compact flash) I have now been unable
 to reproduce this issue else I would have followed up earlier. 9.1-RC2
 has soft rebooted successfully for me on this system without fail many
 times for days. This system is a ZFS storage server, but despite how
 much or how little I use ZFS, it is rebooting fine now.
 
 Andriy Gapon, I do still have one less convenient remote system left
 that consistently reproduces this issue. Can I get your WIP patch to try
 on that system to see if that system is experiencing the issue that
 you've been working on?