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From: Per olof Ljungmark <peo@intersonic.se>
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: Per olof Ljungmark <peo@intersonic.se>
To: bug-followup@FreeBSD.org, bofh@terranova.net
Cc:  
Subject: Re: kern/172952: 9.1 hangs on reboot after all buffers synced
Date: Tue, 23 Oct 2012 20:48:00 +0200

 Identical behavior found on the following hardware, all HP:
 
 DL360 G4
 DL360 G5
 XW6400
 XW6600
 
 All with 9-STABLE and ZFS-only filesystems and only after rebuilding
 system from source. For example, we have two 360 G4 installed 9th. of
 October, both were able to reboot after install. Rebuilt one two days
 ago and now it cannot reboot properly except when you issue a "shutdown
 -n -o -r now".
 
 Tried
 hw.usb.no_shutdown_wait=1
 and
 hw.acpi.handle_reboot=1
 no change.
 
 I think "Severity: non-critical" should be changed to critical because
 this could potentially get you into big trouble when you try to reboot a
 remote machine.