shutdown -r / shutdown -h / reboot all hang and don't cleanly dismount

[Steven Hartland]

----- Original Message ----- 
From: "Ronald Klop" <ronald-freebsd8 at klop.yi.org>


> On Wed, 19 Jun 2013 14:53:19 +0200, Adam Strohl  
> <adams-freebsd at ateamsystems.com> wrote:
> 
>> On 6/19/2013 19:21, Jeremy Chadwick wrote:
>>> On Wed, Jun 19, 2013 at 06:35:57PM +0700, Adam Strohl wrote:
>>>> Hello -STABLE@,
>>>>
>>>> So I've seen this situation seemingly randomly on a number of both
>>>> physical 9.1 boxes as well as VMs for I would say 6-9 months at
>>>> least.  I finally have a physical box here that reproduces it
>>>> consistently that I can reboot easily (ie; not a production/client
>>>> server).
> 
> Hi,
> 
> My home computer had the same symptom (not rebooting after 'all buffers  
> flushed' message) a couple of months ago. But I follow 9-STABLE and the  
> problem is gone for a while now.

avg@ did a lot of work on the ZFS vfs locking which fixed at least one
hang on reboot for ZFS. I don't believe this is in 9.1-RELEASE, so you
should test a stable/9 or 8.4-RELEASE (which is newer than 9.1-RELEASE)
kernel.

    Regards
    Steve

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