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Date:      Thu, 14 Feb 2008 11:01:26 +0100
From:      Kris Kennaway <kris@FreeBSD.org>
To:        Scott Long <scottl@samsco.org>
Cc:        Ian FREISLICH <ianf@clue.co.za>, Ken Smith <kensmith@cse.Buffalo.EDU>, freebsd-current@freebsd.org
Subject:   Re: FreeBSD 7.0-RC2 Available
Message-ID:  <47B41176.9070405@FreeBSD.org>
In-Reply-To: <47B3BA6B.7080106@samsco.org>
References:  <E1JPCWL-0000pN-IF@clue.co.za> <47B38809.5000500@FreeBSD.org> <47B3BA6B.7080106@samsco.org>

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Scott Long wrote:
> Kris Kennaway wrote:
>> Ian FREISLICH wrote:
>>> Hi
>>>
>>> I just installed and only now noticed this oddity (to me at least).
>>> Maybe it's been explained before, but I can't quite remember.
>>>
>>> I selected auto defaults for the slice editor.  The system I installed
>>> (amd64) on has 16GB of RAM yet it only assigned 4GB for swap.  I
>>> remember reading that on amd64 minidumps could corrupt neighbouring
>>> filesystems, so a full dump could be up to 16GB.  There won't be
>>> enough space for a full dump.  That said, 16GB is quite a *lot* to
>>> swap out and I'm not sure how the system would perform under that
>>> scenario.
>>
>> I havent seen reports of problems with minidump on amd64.  I use it 
>> myself.
> 
> Until fairly recently, there were no seatbelts to prevent the dumpsys
> code from exceeding the dump partition.  It was discussed in several
> forums, and the fix was developed and committed to HEAD and 7-mumble
> by Ruslan a couple of weeks ago.  It was not a problem specific to any
> particular platform.

OK, so problem solved then.

Kris



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