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Date:      Fri, 14 Feb 2020 07:54:06 -0500
From:      Robert Huff <roberthuff@rcn.com>
To:        tech-lists <tech-lists@zyxst.net>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: some questions about disk partitioning and filesystems and booting
Message-ID:  <24134.39022.519866.759080@jerusalem.litteratus.org>
In-Reply-To: <20200214121003.GB39057@bastion.zyxst.net>
References:  <20200213150229.GC14144@bastion.zyxst.net> <CAEJNuHxrVPfU_TB35AEXaq0QdM=p-v0rnuZWtmAgQdm_KRMNTw@mail.gmail.com> <20200213155256.GD14144@bastion.zyxst.net> <1090523a-377c-9412-5db1-38e825e35956@mm.st> <20200214121003.GB39057@bastion.zyxst.net>

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tech-lists writes:

>  On Thu, Feb 13, 2020 at 07:06:54PM +0300, yp@mm.st wrote:
>  >Now this is something I wanted to ask as well, as I didn't find 
>  >anything really describing what needs to be done for large (not really 
>  >so this days, 32 and higher) RAM systems -- I have a system with 64GB 
>  >RAM and adding a 64GB swap partition makes system unhappy (I don't 
>  >remember the exact message).  With minidumps and all, what size it 
>  >should be so that dump is guaranteed to be saved?
>  
>  A while ago I tried this (one big swap partition) and experienced the same.
>  This is why I went with several swap partitions. I think the maximum swap as a
>  partition is 32GB and I'm guessing the reason it's like that is down to
>  some variable buried in the code.

	_If_ that's true, then it's a bug and needs to be fixed.  The
folks posting here may not need it ... but I find it hard to imagine
various organizations that use FreeBSD (or would like to) on hardcore
server hardware wouldn't find that a substantial liability.
	While this may be more suited to hackers@: can anyone here
confirm there is an encoded limit on swap space?


			Respectfully,


				Robert Huff





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