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Date: Fri, 16 Nov 2012 07:56:20 -0700 (MST)
From: Warren Block <wblock@wonkity.com>
To: Gary Aitken <freebsd@dreamchaser.org>
Subject: Re: 9.0 crash, ssd or filesystem problem?
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On Fri, 16 Nov 2012, Gary Aitken wrote:

>>> ~$ gpart show ada0
>>> =>       34  250069613  ada0  GPT  (119G)
>>>         34        128     1  freebsd-boot  (64k)
>>>        162   41943040     2  freebsd-ufs  (20G)      /
>>>   41943202    1048576     3  freebsd-swap  (512M)    swap
>>>   42991778    8388608     4  freebsd-ufs  (4.0G)     /var
>>>   51380386    4194304     5  freebsd-ufs  (2.0G)     /tmp
>>>   55574690  192216088     6  freebsd-ufs  (91G)      /usr
>>>  247790778    2278869        - free -  (1.1G)
>>
>> It would not cause this problem, but those partitions are not aligned.
>> That would only affect speed, not reliability.
>
> geezes, it's not even on a 4K boundary from the get-go;
> not sure how that happened.
> let-alone the 1M boundary I just learned about.

That's a normal install.  It's fine for 512-byte devices.  I have other 
suggestions too, but let's save that until the problem is fixed.