Date: Tue, 4 Oct 2011 00:27:25 +0200 From: Ivan Voras <ivoras@freebsd.org> To: Xin LI <delphij@gmail.com> Cc: "freebsd-fs@freebsd.org" <freebsd-fs@freebsd.org> Subject: Re: is TMPFS still highly experimental? Message-ID: <CAF-QHFXZ9vqiAhKx1ndF=FVACoWBVLaK6nn_M_=o7VebQju4bg@mail.gmail.com> In-Reply-To: <CAGMYy3s7RrP8oWC%2BJYgSG3hU1EXgKmnf%2BWQRiE2CDu4bHuz3UA@mail.gmail.com> References: <CAOfDtXMm9K_fbOmvG2gvXxDfKakkgpPt9MLifqDxa4wCibMExg@mail.gmail.com> <alpine.GSO.1.10.1110011122030.882@multics.mit.edu> <CADLo83-s_3H8PbbxOPPxbe0m10U0U5JW-feB294dFs%2BQ3iTWvg@mail.gmail.com> <CAGMYy3ssi%2BkAuufDTHA1z6u7jRrZwRRkCCkcO94GHNGF9Rku_w@mail.gmail.com> <20111002020231.GA70864@icarus.home.lan> <CAGMYy3sCCxOiVqeP4PVbvxnpcyoyQZoL%2Bw3nY8STYnpUNfj6JQ@mail.gmail.com> <j6aorc$hf0$1@dough.gmane.org> <CAGMYy3tbMWU6JU1%2B%2B5XmzjZTrV1=oAgRaaDE3-=MMT73F_ojQQ@mail.gmail.com> <CABzXLYNLhP%2BYFvT5Sw=hKVF6d_Yvmt%2Be_QjH7ghX-2MyzS0wWA@mail.gmail.com> <CAGMYy3s7RrP8oWC%2BJYgSG3hU1EXgKmnf%2BWQRiE2CDu4bHuz3UA@mail.gmail.com>
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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.
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