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From: =?utf-8?Q?Dag-Erling_Sm=C3=B8rgrav?= <des@des.no>
To: John Baldwin <jhb@freebsd.org>
References: <502831B7.1080309@freebsd.org> <86zk5y55rg.fsf@ds4.des.no>
	<201208141346.12782.jhb@freebsd.org>
Date: Fri, 24 Aug 2012 11:44:48 +0200
In-Reply-To: <201208141346.12782.jhb@freebsd.org> (John Baldwin's message of
	"Tue, 14 Aug 2012 13:46:12 -0400")
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Cc: alc@freebsd.org, freebsd-current@freebsd.org,
	Colin Percival <cperciva@freebsd.org>
Subject: Re: Time to bump default VM_SWZONE_SIZE_MAX?
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John Baldwin <jhb@freebsd.org> writes:
> Hmm, this is not true on i386 where the problem is not just the physical
> RAM required, but also address space.  (The swap zone is all mapped into =
KVA=20
> even if it isn't used.)  This is why Alan's e-mail specifically
> mentioned amd64, ia64, etc. but not i386 in his list.  I think i386 still
> needs this limit, and I think your commit jumped the gun a bit.

How about we reinstate the limit on i386, but increase it to 64 MB?
That would increase the theoretical maximum to ~15 GB.  People with 8 GB
swap would get a warning, but would be unlikely to run into trouble.

(or we could increase the limit to 72351744 bytes, which is the precise
amount required to support 16 GB)

DES
--=20
Dag-Erling Sm=C3=B8rgrav - des@des.no