From debbugs-submit-bounces@debbugs.gnu.org Wed Jun 26 05:41:55 2019 Received: (at submit) by debbugs.gnu.org; 26 Jun 2019 09:41:55 +0000 Received: from localhost ([127.0.0.1]:34281 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1hg4R9-00016U-A1 for submit@debbugs.gnu.org; Wed, 26 Jun 2019 05:41:55 -0400 Received: from lists.gnu.org ([209.51.188.17]:37580) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1hg4R6-00016L-GH for submit@debbugs.gnu.org; Wed, 26 Jun 2019 05:41:53 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:38031) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1hg4R5-0004yw-3C for bug-guix@gnu.org; Wed, 26 Jun 2019 05:41:52 -0400 X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on eggs.gnu.org X-Spam-Level: X-Spam-Status: No, score=0.8 required=5.0 tests=BAYES_50,FREEMAIL_FROM, URIBL_BLOCKED autolearn=disabled version=3.3.2 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hg4R4-0003Dq-75 for bug-guix@gnu.org; Wed, 26 Jun 2019 05:41:51 -0400 Received: from mail-wr1-x433.google.com ([2a00:1450:4864:20::433]:45427) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1hg4R4-0003CN-14 for bug-guix@gnu.org; Wed, 26 Jun 2019 05:41:50 -0400 Received: by mail-wr1-x433.google.com with SMTP id f9so1881863wre.12 for ; Wed, 26 Jun 2019 02:41:49 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=references:user-agent:from:to:cc:subject:reply-to:in-reply-to:date :message-id:mime-version:content-transfer-encoding; bh=f2ZBC/5OOYRcK1qUvTLJIwX4itUV3wbPXZ5Zara2Ruw=; b=Vg4nyVbkwXDdY76jHRFpgHksKaaP593i8oe5ikrgLdRVyuOFLBLXonEFbShFHzsYzc pn6YZBb9N44zuImIjgUUwwRQTvyJztZitZDR/RB/0yGE+n7JVMRyYrDY0Ix/54kv06RO W2s73EnSKsWESvRZGffIUEWfeg2NXLh8KKZPr1sazjOQC8oRoS1bPvrR81g4Be0OreU0 Ehe73SrHbngdA5u2eKrfWerZA7RVp929b3KksCn3BW0ZtiVokHdtGTTaMHXdG1w7lmrK PzH7Hc50hLB9dPw6DA0d+UAWa/kQwLbeyhOgA85pSWOHXAoQQH7AxagShxtB+4cEJAqs 4yWA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:references:user-agent:from:to:cc:subject :reply-to:in-reply-to:date:message-id:mime-version :content-transfer-encoding; bh=f2ZBC/5OOYRcK1qUvTLJIwX4itUV3wbPXZ5Zara2Ruw=; b=ocIuYGM8PzZR0HjAEvounXXlGlavoEKRK50AxrjYbatC/uH1wCibIq9CbDRNer/28M mNNboONz5oZ/8oq7kpk5fh064OCvkDcxwKXORF6QYoVDHlvZ1LdrJfcU+JS/5qMNVdm2 9GMRvRgSfueT+v9I2OTB+4rIXnd22UuVN5F2Ov92VpBb1lll0N+KVSoyHlsB39hkw6/i mY8xMCzFpdq51cD9ehZwbxZ+3XMbq9N8Vef+yChzICgzVFYpMoD+usFUlbGfONM1qpQ7 JD2J+tHrbr9ymddpvMvJDR+Itldj5kBEjVjpKTsYaEF5/lA25ZNaSVO2UkCKRXcc6ksH P84g== X-Gm-Message-State: APjAAAV8NNm8R28HGtfwA+ZDO53H1lBOtS11Nm5ZQ+tcoNm1d1rwea3+ wX/HgcS0cjc5hxnYpxH9RU8= X-Google-Smtp-Source: APXvYqyc2CPfpKMhpab3Hi8thmFcGSJ2n1z6D+4gmNLH2CTJo2YOVgjEbIbgw5SszrEHEDC1a7yB2Q== X-Received: by 2002:adf:a345:: with SMTP id d5mr2764838wrb.234.1561542108790; Wed, 26 Jun 2019 02:41:48 -0700 (PDT) Received: from watership ([87.236.135.19]) by smtp.gmail.com with ESMTPSA id o20sm20331599wro.65.2019.06.26.02.41.48 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Wed, 26 Jun 2019 02:41:48 -0700 (PDT) References: User-agent: mu4e 1.2.0; emacs 26.2 From: Alex Sassmannshausen To: bug-guix@gnu.org Subject: Re: bug#36380: service urandom-seed takes too long on boot In-reply-to: Date: Wed, 26 Jun 2019 10:41:47 +0100 Message-ID: <871rzg3cpw.fsf@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2a00:1450:4864:20::433 X-Spam-Score: -1.3 (-) X-Debbugs-Envelope-To: submit Cc: 36380@debbugs.gnu.org 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: , Reply-To: alex.sassmannshausen@gmail.com Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -2.3 (--) Hi Robert, Robert Vollmert writes: > On my VPS, booting takes forever (long enough that for a long > time I thought the install had failed). I just rebooted again, > and it took over 7 minutes, see attached screenshot. > > I would suggest skipping the seeding from /dev/hwrng by default > if /var/lib/random-seed is available. I=E2=80=99m assuming here that my > problem is not too rare =E2=80=94 if it is, an option to disable the > seeding from /dev/hwrng seems like a good idea. I'm not sure I'm qualified on best practices with regard to urandom, but anecdotally, my servers are booting pretty fast, within a minute, consistently. This is even when booting a qemu virtual image rather than a VPS. Perhaps something else is going on here? Alex