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Date:      Fri, 19 Jan 2018 12:32:33 -0800
From:      Peter Moody <freebsd@hda3.com>
To:        Mike Tancsa <mike@sentex.net>
Cc:        Nimrod Levy <nimrodl@gmail.com>, Don Lewis <truckman@freebsd.org>, freebsd-stable@freebsd.org, Pete French <petefrench@ingresso.co.uk>
Subject:   Re: Ryzen issues on FreeBSD ?
Message-ID:  <CADbMJxm308Pv1OsSj58WVBnM4oYNy8SeQxn54XNt3w0_zaZVFg@mail.gmail.com>
In-Reply-To: <dd29d77a-deb9-423e-f9b8-cb07387bbfd5@sentex.net>
References:  <8e842dec-ade7-37d1-6bd8-856ea1a827ca@sentex.net> <3b625072-dfb3-6b4f-494d-7fe1b2fa554c@ingresso.co.uk> <2c6ce4dd-f43c-7c40-abc2-732d6f8996ec@sentex.net> <tkrat.6d8f44d87e74fa14@FreeBSD.org> <795dbb79-3c18-d967-98b9-5d09a740dbfe@sentex.net> <CAMgUhpr%2B5HeBi1MRegs=XoKpdHW8-i%2Bec0k-DNaL_pcN6PCPKw@mail.gmail.com> <tkrat.5ec856810e0c7ced@FreeBSD.org> <CAMgUhpqZyCOjqVhMCAi-b_JaKYtyfqDf0pOcX0LwV2dcTuusyg@mail.gmail.com> <CAMgUhpqpYpoi1bD9h_SYvh83g_Csky%2BqMkTsOYZ1zcHYxtMeHg@mail.gmail.com> <dd29d77a-deb9-423e-f9b8-cb07387bbfd5@sentex.net>

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On Fri, Jan 19, 2018 at 12:13 PM, Mike Tancsa <mike@sentex.net> wrote:
> Drag :( I have mine disabled as well as lowering the RAM freq to 2100
> from 2400.  For me the hangs are infrequent.  Its only been a day and a
> half, so not sure if its gone or I have been "lucky"... Either ways,
> this platform feels way too fragile to deploy on anything :(
>
>         ---Mike
>
> On 1/19/2018 3:08 PM, Nimrod Levy wrote:
>> Looks like disabling the C- states in the bios didn't change anything.

it's too early for me to be 100% certain, but disabling SMT in the
bios has thus far resulted in a more stable system.

I have a ryzen5 1600X and an ASRock AB350M and I've tried just about
everything in all of these threads; disabling C state (no effect),
setting the sysctl (doesn't exist on my 11.1 RELEASE), tweaking
voltage and cooling settings, rma'ing the board the cpu and the
memory. nothing helped.

last night I tried disabling SMT and, so far so good.


>> On Wed, Jan 17, 2018 at 9:22 PM Nimrod Levy <nimrodl@gmail.com
>> <mailto:nimrodl@gmail.com>> wrote:
>>
>>     That looks promising. I just found that seeing in the bios and
>>     disabled it. I'll see how it runs.
>>
>>     Thanks
>>
>>
>>     On Wed, Jan 17, 2018, 18:38 Don Lewis <truckman@freebsd.org
>>     <mailto:truckman@freebsd.org>> wrote:
>>
>>         On 17 Jan, Nimrod Levy wrote:
>>         > I'm running 11-STABLE from 12/9.  amdtemp works for me.  It
>>         also has the
>>         > systl indicating that it it has the shared page fix. I'm
>>         pretty sure I've
>>         > seen the lockups since then.  I'll update to the latest STABLE
>>         and see
>>         > what  happens.
>>         >
>>         > One weird thing about my experience is that if I keep
>>         something running
>>         > continuously like the distributed.net <http://distributed.net>;
>>         client on 6 of 12 possible threads,
>>         > it keeps the system up for MUCH longer than without.  This is
>>         a home server
>>         > and very lightly loaded (one could argue insanely overpowered
>>         for the use
>>         > case).
>>
>>         This sounds like the problem with the deep Cx states that has been
>>         reported by numerous Linux users.  I think some motherboard
>>         brands are
>>         more likely to have the problem.  See:
>>         http://forum.asrock.com/forum_posts.asp?TID=5963&title=taichi-x370-with-ubuntu-idle-lock-ups-idle-freeze
>>
>>     --
>>
>>     --
>>     Nimrod
>>
>>
>>
>> --
>>
>> --
>> Nimrod
>>
>
>
> --
> -------------------
> Mike Tancsa, tel +1 519 651 3400
> Sentex Communications, mike@sentex.net
> Providing Internet services since 1994 www.sentex.net
> Cambridge, Ontario Canada   http://www.tancsa.com/
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