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Date:      Tue, 5 Jan 2016 13:58:16 -0500
From:      Mark Saad <nonesuch@longcount.org>
To:        Adam Vande More <amvandemore@gmail.com>
Cc:        FreeBSD-Stable ML <freebsd-stable@freebsd.org>
Subject:   Re: dev/random warning on 10-STABLE after r292122 up till r292855
Message-ID:  <CAMXt9NbOQtX2Xmk_F7PJOOeaj6VLSp6Wki1u7K4j%2BNkx9ZTMzA@mail.gmail.com>
In-Reply-To: <CA%2BtpaK0m0c%2BWJvj4-A8OsoreW1XqKCdZ6gaCu3ybmW49A1XbGA@mail.gmail.com>
References:  <CAMXt9NYVsryEH7JAY3wt6z67oONf=uvXWTdhUzsUSZbG0nZv3g@mail.gmail.com> <CA%2BtpaK0m0c%2BWJvj4-A8OsoreW1XqKCdZ6gaCu3ybmW49A1XbGA@mail.gmail.com>

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On Tue, Jan 5, 2016 at 8:45 AM, Adam Vande More <amvandemore@gmail.com>
wrote:

> On Mon, Jan 4, 2016 at 3:44 PM, Mark Saad <nonesuch@longcount.org> 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



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