From owner-freebsd-stable@freebsd.org Tue Jan 5 18:58:17 2016 Return-Path: Delivered-To: freebsd-stable@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id BEEC6A6268D for ; Tue, 5 Jan 2016 18:58:17 +0000 (UTC) (envelope-from nonesuch@longcount.org) Received: from mail-yk0-x22c.google.com (mail-yk0-x22c.google.com [IPv6:2607:f8b0:4002:c07::22c]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 8729B1A43 for ; Tue, 5 Jan 2016 18:58:17 +0000 (UTC) (envelope-from nonesuch@longcount.org) Received: by mail-yk0-x22c.google.com with SMTP id a85so214077801ykb.1 for ; Tue, 05 Jan 2016 10:58:17 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=longcount-org.20150623.gappssmtp.com; s=20150623; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=lxMbL4R2UACZ+I3ns+2abDoLU8MoYGgFM/j7sRUagBY=; b=Ds6lRsiv5qvr1VJqGg9TEYz9Id+RhEQlFY75rNEiJL/0jxtNcBdfRtSc4lANYH58dI GkqiZP6f9Q7jZBBKiJn7yfgjEil5/7TTsPTXQFOsrhPDYHZMd75yUwWdrOZpwLIcG8kB Un6aEPIfeu5lBnvtLTnD10ylAmF8DD6Mgl+FWligo+vtdj6ZNJwielNFHwzAXobpeOYN NLHtz7+8k6IeP4jPnbZc90U5krL84dVKtLWEs4k/kSibsQnB+l6J0SamAqwkg8K5qYfP 3S7laBpUxeTsTTRX0zcf0KYUw5cPbse41jR0/ZFmRP6M6+Fiam40cIvL4LBCUeKogkBW LUDw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=lxMbL4R2UACZ+I3ns+2abDoLU8MoYGgFM/j7sRUagBY=; b=RyJLo33csnsUi2PrElmvxpjCtzziuRTTIkvFEPK3YO3naZK6OyAvjOsl4bJG80CTSe TjDL/4sMWaGbRvnzMgSlQkYNfw0fOVpog5EIQ/1OfuH+S0dvm7NDHGQHTKT8gwoHV122 YUBniI58qqBJ0occJqWwOt00l95ySyStqn39Ohb79KtXSFf2iMGf8LNcOiBShN/ACijk hn33xFhGqGzggdF8d8BfIWgDmurEOecFp58k9UNBzUC8tzXDK7cZE4ADCUBFFS4Pvq86 +/siqhdcuuPv9Qk26yaHmL5fvxZb8Otiws7QbFDCPlYCg6/D+GkgBZFZ9sp+sj8t2yNQ fBcA== X-Gm-Message-State: ALoCoQnao6EXfQMEeZGKYhySLtVJy/jio68BrliHCTN6w5qPBCCQC+OYJAswNDP2+fTri5oYV/h2v9vMO3PX8KvW5plzfkh3Zw== MIME-Version: 1.0 X-Received: by 10.129.82.134 with SMTP id g128mr67988306ywb.335.1452020296550; Tue, 05 Jan 2016 10:58:16 -0800 (PST) Received: by 10.13.240.134 with HTTP; Tue, 5 Jan 2016 10:58:16 -0800 (PST) X-Originating-IP: [38.104.68.66] In-Reply-To: References: Date: Tue, 5 Jan 2016 13:58:16 -0500 Message-ID: Subject: Re: dev/random warning on 10-STABLE after r292122 up till r292855 From: Mark Saad To: Adam Vande More Cc: FreeBSD-Stable ML Content-Type: text/plain; charset=UTF-8 X-Content-Filtered-By: Mailman/MimeDel 2.1.20 X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 05 Jan 2016 18:58:17 -0000 On Tue, Jan 5, 2016 at 8:45 AM, Adam Vande More wrote: > On Mon, Jan 4, 2016 at 3:44 PM, Mark Saad wrote: > >> All >> At NYC*BUG we are looking into a warning seen on FreeBSD 10-STABLE amd64 >> starting at or about r292122 and still up till r292855. >> >> On boot dmesg logs the following warning not seen on 10.2-RELEASE amd64. >> >> random device not loaded; using insecure entropy >> >> The full dmesg can be seen here >> http://dmesgd.nycbug.org/index.cgi?action=dmesgd&do=view&id=2871 >> >> I checked in svn and there are no recent changes to sys/dev/random . >> >> Does anyone have any insight into this ? >> > > It's more of an informational message about seeding the random number > generator. Probably man 4 random is the best explanation. > > > > -- > Adam > Adam Not sure why I didn't think of that, thanks for the pointer; I didn't see any change in the relevant default sysctls . On a 10-RELEASE box no warning [msaad@ny4-c108-nocbox ~]$ uname -a FreeBSD ny4-c108-nocbox 10.2-RELEASE-p7 FreeBSD 10.2-RELEASE-p7 #0: Mon Nov 2 14:19:39 UTC 2015 root@amd64-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC amd64 [msaad@ny4-c108-nocbox ~]$ sysctl kern.random kern.random.sys.harvest.swi: 1 kern.random.sys.harvest.interrupt: 1 kern.random.sys.harvest.point_to_point: 1 kern.random.sys.harvest.ethernet: 1 kern.random.sys.seeded: 1 kern.random.yarrow.slowoverthresh: 2 kern.random.yarrow.slowthresh: 128 kern.random.yarrow.fastthresh: 96 kern.random.yarrow.bins: 10 kern.random.yarrow.gengateinterval: 10 kern.random.live_entropy_sources: kern.random.active_adaptor: yarrow kern.random.adaptors: yarrow,dummy ----- On 10-STABLE with warning msaad@smokeping:~ % uname -a FreeBSD smokeping 10.2-STABLE FreeBSD 10.2-STABLE #0 r292855: Tue Dec 29 06:17:50 UTC 2015 root@releng1.nyi.freebsd.org:/usr/obj/usr/src/sys/GENERIC amd64 msaad@smokeping:~ % sysctl kern.random kern.random.sys.harvest.swi: 1 kern.random.sys.harvest.interrupt: 1 kern.random.sys.harvest.point_to_point: 1 kern.random.sys.harvest.ethernet: 1 kern.random.sys.seeded: 1 kern.random.yarrow.slowoverthresh: 2 kern.random.yarrow.slowthresh: 128 kern.random.yarrow.fastthresh: 96 kern.random.yarrow.bins: 10 kern.random.yarrow.gengateinterval: 10 kern.random.live_entropy_sources: kern.random.active_adaptor: yarrow kern.random.adaptors: yarrow,dummy -- mark saad | nonesuch@longcount.org