From debbugs-submit-bounces@debbugs.gnu.org Sun Mar 22 04:43:43 2020 Received: (at 36380) by debbugs.gnu.org; 22 Mar 2020 08:43:43 +0000 Received: from localhost ([127.0.0.1]:48581 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1jFwCt-0002HU-H1 for submit@debbugs.gnu.org; Sun, 22 Mar 2020 04:43:43 -0400 Received: from relay4-d.mail.gandi.net ([217.70.183.196]:42457) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1jFwCq-0002HC-T3 for 36380@debbugs.gnu.org; Sun, 22 Mar 2020 04:43:42 -0400 Received: from webmail.gandi.net (webmail18.sd4.0x35.net [10.200.201.18]) (Authenticated sender: brice@waegenei.re) by relay4-d.mail.gandi.net (Postfix) with ESMTPA id 4F701E0002 for <36380@debbugs.gnu.org>; Sun, 22 Mar 2020 08:43:33 +0000 (UTC) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7bit Date: Sun, 22 Mar 2020 08:43:33 +0000 From: Brice Waegeneire To: 36380@debbugs.gnu.org Subject: Re: bug#36380: service urandom-seed takes too long on boot Message-ID: X-Sender: brice@waegenei.re User-Agent: Roundcube Webmail/1.3.8 X-Spam-Score: -0.7 (/) X-Debbugs-Envelope-To: 36380 X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -1.7 (-) Hello, It would be nice if we could reproduce this issue. Robert Vollmert writes: > Just ran across this article about Debian dealing with similar issues. > > https://daniel-lange.com/archives/152-hello-buster.html This article has been updated since then with a section[0] about a fix authored by Linus[1][2] and merged in Linux 5.4. The gist of it that now `getrandom()' will actively try to collect entropy in early boot, if it is missing, by using the CPU jitter. The Debian wiki is saying the same[3]. Since we are using actually using Linux-libre 5.4 as the default kernel this issue should probably be closed. [0]: https://daniel-lange.com/archives/152-hello-buster.html#linustotherescue [1]: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3f2dc2798b81531fd93a3b9b7c39da47ec689e55 [2]: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=50ee7529ec4500c88f8664560770a7a1b65db72b [3]: https://wiki.debian.org/BoottimeEntropyStarvation Brice.