Date: Sun, 2 Mar 2014 23:15:24 -0700 From: Warner Losh <imp@bsdimp.com> To: John Hay <jhay@meraka.org.za> Cc: George Rosamond <george@ceetonetechnology.com>, freebsd-arm@freebsd.org Subject: Re: TMPFS in kernels Message-ID: <595B99F0-264D-41D3-9151-FFCFD0261AFD@bsdimp.com> In-Reply-To: <20140303061136.GB85204@zibbi.meraka.csir.co.za> References: <5313D0FE.8010008@ceetonetechnology.com> <1393818974.1149.270.camel@revolution.hippie.lan> <5314016B.1000107@ceetonetechnology.com> <20140303061136.GB85204@zibbi.meraka.csir.co.za>
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On Mar 2, 2014, at 11:11 PM, John Hay <jhay@meraka.org.za> wrote: > On Sun, Mar 02, 2014 at 11:13:31PM -0500, George Rosamond wrote: >> Ian Lepore: >>> On Sun, 2014-03-02 at 19:46 -0500, George Rosamond wrote: >>>> Is there a reason why TMPFS(5) is not in the 10-Stable's ALIX and = RPI-B >>>> kernels, yet in BEAGLEBONE? Haven't checked the others. >>>>=20 >>>> Seems like a strong and mature replacement for md(4) from my >>>> experiences, and probably belongs in the Crochet fstabs. I have = been >>>> using on Alix, RPis, x86 for a long while, and never had any >>>> (noticeable) issues. >>>>=20 >>>> g >>>=20 >>> I agree. Should we add it to all configs, or just to armv6 configs? >>>=20 >>=20 >> I'd assume we should have it all the kernels.. especially since most = of >> them are running off flash-type media, which makes memory-based disks >> pretty vital. >=20 > Our embedded systems also use compact flash disks mounted ro. We have > been (ab)using the nice etc/rc.initdiskless and etc/rc.d/var scripts > by just having an etc/diskless and populated conf/base and = conf/defaults > directories. But it seems those scripts just work with md devices. NANOBSD works that way too=85 tmpfs is a bit nicer since it doesn=92t = hard-wire the allocation, but that can suffer a bit from the vagaries of system demand=85. Warner
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