From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753482AbeD2OWW (ORCPT ); Sun, 29 Apr 2018 10:22:22 -0400 Received: from atrey.karlin.mff.cuni.cz ([195.113.26.193]:52111 "EHLO atrey.karlin.mff.cuni.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752895AbeD2OWU (ORCPT ); Sun, 29 Apr 2018 10:22:20 -0400 Date: Sun, 29 Apr 2018 16:22:18 +0200 From: Pavel Machek To: Paul Menzel Cc: "Theodore Y. Ts'o" , linux-kernel@vger.kernel.org Subject: Re: Linux messages full of `random: get_random_u32 called from` Message-ID: <20180429142218.GA13475@amd> References: <42c1b84b-ab1f-5577-6304-e0985a637cf9@molgen.mpg.de> <20180424135621.GD4189@thunk.org> <20180424154904.GC30619@thunk.org> <20180425074144.GA18803@thunk.org> <4d707453-0771-2d1f-3ebb-0d19b85177a2@molgen.mpg.de> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="u3/rZRmxL6MmkK24" Content-Disposition: inline In-Reply-To: <4d707453-0771-2d1f-3ebb-0d19b85177a2@molgen.mpg.de> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --u3/rZRmxL6MmkK24 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi! > Am 25.04.2018 um 09:41 schrieb Theodore Y. Ts'o: > >Does this help on your system? >=20 > Thank you, after figuring out how to apply the paste, yes it helped on my > Lenovo X60. >=20 > >commit 4e00b339e264802851aff8e73cde7d24b57b18ce > >Author: Theodore Ts'o > >Date: Wed Apr 25 01:12:32 2018 -0400 > > > > random: rate limit unseeded randomness warnings > > On systems without sufficient boot randomness, no point spamming dm= esg. >=20 > I guess this is a problem with old hardware? Ok, I see it too, thinkpad x60. But... this machine has spinning harddrive and independend RTC; there really should be enough randomness... Could we exploit either of them as randomness source when we run out of entropy? Pavel --=20 (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blo= g.html --u3/rZRmxL6MmkK24 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iEYEARECAAYFAlrl1RoACgkQMOfwapXb+vK5zACgphRq7tc258wO9zvI9IGb4jQK zXkAoJhNTiBnwg9yk3OPlT0HstrNbkW/ =Wb+l -----END PGP SIGNATURE----- --u3/rZRmxL6MmkK24--