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Date:      Mon, 07 Feb 2011 21:12:05 -0600
From:      Eric Schuele <>
To:        Adam Vande More <>
Cc:        FreeBSD Questions <>
Subject:   Re: 8.2 prerelease, virtualbox, and windows guests that freeze... [Solved]
Message-ID:  <>
In-Reply-To: <>
References:  <>	<>	<>	<>	<> <>

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On 02/07/2011 05:58, Eric Schuele wrote:
> On 02/06/2011 22:02, Adam Vande More wrote:
>> On Sun, Feb 6, 2011 at 9:23 PM, Eric Schuele <> =
>>> Ok... found the logs.  :)
>>> Looks as if each machine has 4 log files, and that the set of files i=
>>> from the last run.  Anything in there I could post to help diagnose?
>> Let's see what's in the most recent log of an affected VM.  If you hav=
e any
>> funky options like page fusion enabled disable them.
> After looking in the logs I found an error.  :)
> 	"AIOMgr: Error happened "
> This led me to an open issues in VirtualBox's bug tracker.  The propose=
> work around is to either *enable* th "Use Host I/O cache" on your
> virtualized SATA disks, or just use virtualized IDE disks.  I am testin=
> this now.
> Will let you know how it turns out.

Thanks guys!  I've had my VMs running longer this evening than before.
I'm gonna call this one fixed.

For the archives, here is the VirtualBox bug report I was referring to
that mentions the host I/O cache.

>> What the output of gstat(8) and top(1) look like when you reach this
>> degraded state?


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