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From: Ivan Voras <ivoras@freebsd.org>
Date: Tue, 4 Oct 2011 00:27:25 +0200
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To: Xin LI <delphij@gmail.com>
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Cc: "freebsd-fs@freebsd.org" <freebsd-fs@freebsd.org>
Subject: Re: is TMPFS still highly experimental?
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On 4 October 2011 00:13, Xin LI <delphij@gmail.com> wrote:
> On Mon, Oct 3, 2011 at 2:36 PM, Olivier Smedts <olivier@gid0.org> wrote:
> [...]
>> Try reducing the swap size to less than the RAM size. No "configuration
>> issue", try with some RAM + swap that should fit all.
>
> But it's not ZFS+tmpfs specific, it can happen anywhere when memory
> and swap is not sufficient. =C2=A0Of course tmpfs and ZFS should play mor=
e
> well together but it's pretty much a "you get what you paid for"
> situation IMHO.

That would be ok...

> One thing I can not yet reproduce, but sounds like a serious issue is
> that when system have sufficient RAM available, ZFS reports 0 in free
> space... =C2=A0If there is a test case for that then that's definitely
> something we need to solve sooner.

Yes, this is the point of my original bug report - I thought that this
is what you were going to test. Note that on that machine I have both
free memory and free swap and still 0 bytes free in tmpfs.