From owner-freebsd-hackers@freebsd.org Mon Nov 5 21:23:35 2018 Return-Path: Delivered-To: freebsd-hackers@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 0D75A110C24E for ; Mon, 5 Nov 2018 21:23:35 +0000 (UTC) (envelope-from zbeeble@gmail.com) Received: from mail-it1-x135.google.com (mail-it1-x135.google.com [IPv6:2607:f8b0:4864:20::135]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 683CB73983 for ; Mon, 5 Nov 2018 21:23:34 +0000 (UTC) (envelope-from zbeeble@gmail.com) Received: by mail-it1-x135.google.com with SMTP id k206-v6so14973103ite.0 for ; Mon, 05 Nov 2018 13:23:34 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:from:date:message-id:subject:to; bh=XoNWpjKvqUfNOjCRyjsHK3x9UBB23dmpsEi4WD0hQxc=; b=OzFBZJPwJrNvVAK4AzspBbXyEvTTIZ8HpMmZfKXag7YEQZGHivS+lDk20fVrUA965A 4vTeuSoSXrylpgGSsPxWKP0QibxsNvTDvzMGMEby1Tw9XrTSFDUdn4/Gg4A+/SpXr4CA bM/SfijJWFLHJzREeEei3I/UVb27oOce1o58rbVvMyH14JwyS6rk8joIGhnkCfI8lORI riTpcYlkACqPO1/TtUjFBsskc5U+H/gFoXFfnWwMOPVgt5iFOVHvyOXqgTJR4P2veO9H ixYN16MfI2hubL2GrgxB2yfdh3AufIb5HwWmLwXWb9Ot+7gBObO3AiSUaTy2ASmaoqmp OCuA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=XoNWpjKvqUfNOjCRyjsHK3x9UBB23dmpsEi4WD0hQxc=; b=LEhLiWTrK+dbKkKMkxl0Q7CZbXZ7xH0e9R301yhJHPI8Ur3x/kIwFPGM+5tkKgnhFj PuA3BIcKZfzEyawY6AQuwQ7q7yadE2tfC0BQxxlcBGROjU98Kod+UHvT+E3HYF7XkBsp iqls6llf2SL+3Cr+qD51u2vbyddFYY8yCLjulnbiig+Iwuz9qRQVW1fG525sQyIK3wdX kWt8DeMU2d13eOVVniPI4cbNkRu26cgOHVLp6Mq96jGvcCfTWd8js9nok644L964PHy+ uIUuBpBuMYsqnqv9hHqDq9YZNhMr+ojOT8TDnT2JN82hTBs1vt1mo4sIKjLhPizSQWzk zU3A== X-Gm-Message-State: AGRZ1gJT6wMPVf2WviL17+CxqBwc8TiEj14S/AxYeNVsjRyQcKZcB8s6 D1Xe6qJNdK9bY5UO64s4L0pA0PH/5PC+73GwQFhzI9I= X-Google-Smtp-Source: AJdET5e7wDurD3MNwc0Q1cAaL5bUxv2YAbNtuNENEnHMrl6GBiZ/kNNm6yunSv49JFMi9MDxZBoTaNU2GjH5EOKejdA= X-Received: by 2002:a24:e0b:: with SMTP id 11-v6mr8400377ite.60.1541453013386; Mon, 05 Nov 2018 13:23:33 -0800 (PST) MIME-Version: 1.0 From: Zaphod Beeblebrox Date: Mon, 5 Nov 2018 16:23:22 -0500 Message-ID: Subject: Threadripper Thermal strangeness. To: FreeBSD Hackers X-Rspamd-Queue-Id: 683CB73983 X-Spamd-Result: default: False [-2.98 / 200.00]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-0.91)[-0.905,0]; R_DKIM_ALLOW(-0.20)[gmail.com]; FROM_HAS_DN(0.00)[]; R_SPF_ALLOW(-0.20)[+ip6:2607:f8b0:4000::/36]; FREEMAIL_FROM(0.00)[gmail.com]; MIME_GOOD(-0.10)[multipart/alternative,text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-hackers@freebsd.org]; RCPT_COUNT_ONE(0.00)[1]; IP_SCORE(-0.37)[ipnet: 2607:f8b0::/32(-0.49), asn: 15169(-1.29), country: US(-0.06)]; TO_DN_ALL(0.00)[]; DKIM_TRACE(0.00)[gmail.com:+]; MX_GOOD(-0.01)[cached: alt3.gmail-smtp-in.l.google.com]; DMARC_POLICY_ALLOW(-0.50)[gmail.com,none]; RCVD_IN_DNSWL_NONE(0.00)[5.3.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.0.4.6.8.4.0.b.8.f.7.0.6.2.list.dnswl.org : 127.0.5.0]; TO_MATCH_ENVRCPT_ALL(0.00)[]; NEURAL_HAM_SHORT(-0.70)[-0.696,0]; FROM_EQ_ENVFROM(0.00)[]; RCVD_TLS_LAST(0.00)[]; FREEMAIL_ENVFROM(0.00)[gmail.com]; ASN(0.00)[asn:15169, ipnet:2607:f8b0::/32, country:US]; RCVD_COUNT_TWO(0.00)[2] X-Rspamd-Server: mx1.freebsd.org Content-Type: text/plain; charset="UTF-8" X-Content-Filtered-By: Mailman/MimeDel 2.1.29 X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 05 Nov 2018 21:23:35 -0000 So ... I have the lowliest threadripper ... the 1900X in a motherboard that I dual-boot between Windows 10 and FreeBSD. Under windows 10, the variable fan stuff behaves. Under light load, the CPU sticks around 40C and under heavy load it can spike as high as 55C as the water pump and fans spool up. Even though the variable fan stuff seems to operate under FreeBSD (as a function of the motherboard's microcontroller or whatnot), as I was having problems, I disabled the feature and set all fans to simply "on" or 100%. kldloading "amdtemp.ko" reports an idle temp of 55C or so and heavy compiling (make world -j32) reports temperatures as high as 95C ... upto and including some instability and/or crash or rebooting. ... now... is this due to thermal throttling not kicking in? Is windows miss-reporting the temperature? Is FreeBSD miss-reporting the temperature? Has anyone else experienced this?