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From: =?utf-8?Q?Dag-Erling_Sm=C3=B8rgrav?= <des@des.no>
To: Devin Teske <dteske@freebsd.org>
Subject: Re: svn commit: r256377 - in head: etc/defaults etc/rc.d
 share/examples/kld/random_adaptor share/man/man4 sys/boot/forth sys/conf
 sys/dev/glxsb sys/dev/hifn sys/dev/random sys/dev/rndtest sys/dev/safe ...
References: <201310121257.r9CCvvjO006546@svn.freebsd.org>
 <CAJ-VmomMvW3k+D-t29nb9JByrE_rt7yXEyBnKzvN3KnhXjdXVw@mail.gmail.com>
 <13CA24D6AB415D428143D44749F57D720FC5BE74@LTCFISWMSGMB21.FNFIS.com>
Date: Sat, 12 Oct 2013 19:29:47 +0200
In-Reply-To: <13CA24D6AB415D428143D44749F57D720FC5BE74@LTCFISWMSGMB21.FNFIS.com>
 (Devin Teske's message of "Sat, 12 Oct 2013 16:35:39 +0000")
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Cc: Adrian Chadd <adrian@freebsd.org>,
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 "svn-src-all@freebsd.org" <svn-src-all@freebsd.org>, "Teske,
 Devin" <Devin.Teske@fisglobal.com>,
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"Teske, Devin" <Devin.Teske@fisglobal.com> writes:
> Can you maybe test with ZFS + Geli? I'm concerned because we told it
> to use random(4) instead of urandom(4). I hope there's enough entropy
> when creating the geli stuff that said process doesn't hang.

/dev/urandom is a symlink to /dev/random.  Neither will block, because
we explicitly mark /dev/random as seeded with a SYSINIT late in the boot
(not as late as I'd like, but not too early either).

> I think DES's patch will help there too (not that anyone testing our
> ZFS patches reported any hangs... including when testing GELI -- this
> was before DES's patch).

If you mean the device attach entropy gathering, that was a case of
parallel invention from Pawel and myself, where I ended up using Pawel's
patch with minor modifications.

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