From owner-freebsd-cloud@freebsd.org Sat Mar 25 21:59:00 2017 Return-Path: Delivered-To: freebsd-cloud@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 B9279D1DCF2 for ; Sat, 25 Mar 2017 21:59:00 +0000 (UTC) (envelope-from newt0311@gmail.com) Received: from mail-oi0-x22b.google.com (mail-oi0-x22b.google.com [IPv6:2607:f8b0:4003:c06::22b]) (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 82DDA1E05 for ; Sat, 25 Mar 2017 21:59:00 +0000 (UTC) (envelope-from newt0311@gmail.com) Received: by mail-oi0-x22b.google.com with SMTP id r203so9126703oib.3 for ; Sat, 25 Mar 2017 14:59:00 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc; bh=DuJM3rRYIvJXdEpjThg2XdyHUIzf+X2ivLxDPwDz0aY=; b=mXU5Y1C0C72NppFENUbmuU/b/Lsfok4IUNKxaLBExlnSywFo2SIYWvKh2inV0NgSMD 8uS8xq0MdTA1PJI+LykkgLAPy2G5zveuE24uVoVSX6GT5x1CQeFXAhfCPr3IIEj5a7s7 O0StXA2sk1+jO9c9z+9DEyFLkgQJDM5MB3gdXUWEeZBAeNKX/29SNgmSSFAau5DPYfG6 mo5sorfxhFIuFYqnHqu4G11CPXib51OQfRg4WkX+1tFSuiW4ka83W7mId39O46I5TBHE NQbasQnPko0lFuhJPI2mZE6UrQQfE4XElgHDCA+6MypMqtFnzWbr2IfT2xCrTV6/Bv56 B3Iw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc; bh=DuJM3rRYIvJXdEpjThg2XdyHUIzf+X2ivLxDPwDz0aY=; b=nDk7F1rq6CMr69nugS+p4xzRhOz9hgfoNzUgE/pXCEsUuUue3IW+w6NzkVkqw47On8 kE+CmjSnCDG/+W5lbzrExu54FzMakeqRI20WSqg9alBpQFxKMLMVGL/dh4wfSmGZHi3D i4M464lITqZhjHAIqHVy7F5ZgCtoZcj306OV90GRbglhFcMr+y4t0VNMvReLgTmdZ4AY efOhQYoUvLCv16y2/6DpErHoG3AR9lP1VIBQvUiBzZifmcMEjn4LAbE70Cc7h89bKmHT BAR1+9i8sHioaM7h7vaLS9wJa6bH1tbeSpiGZTBMlOQAE2hXPCp8+eB6o4idj90tPTgQ jxig== X-Gm-Message-State: AFeK/H0pLbyhXgrX0fsGV0OqUFyofPTqjlR/BN3D7hQ1KyoQ9BLQr7q+rgsliWPFT1masxrafmtPjNqpexgRfg== X-Received: by 10.202.106.204 with SMTP id f195mr8355040oic.41.1490479139632; Sat, 25 Mar 2017 14:58:59 -0700 (PDT) MIME-Version: 1.0 Received: by 10.157.22.217 with HTTP; Sat, 25 Mar 2017 14:58:39 -0700 (PDT) In-Reply-To: <0100015b075efd74-2a227e8b-7fc9-4ebb-9187-f549733c1b6c-000000@email.amazonses.com> References: <0100015b075efd74-2a227e8b-7fc9-4ebb-9187-f549733c1b6c-000000@email.amazonses.com> From: Prakhar Goel Date: Sat, 25 Mar 2017 17:58:39 -0400 Message-ID: Subject: Re: Issues with clock skew on GCE To: Colin Percival Cc: freebsd-cloud@freebsd.org Content-Type: text/plain; charset=UTF-8 X-BeenThere: freebsd-cloud@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "FreeBSD on cloud platforms \(EC2, GCE, Azure, etc.\)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 25 Mar 2017 21:59:00 -0000 Looks like that was it. If I had to guess: on the shared CPU instances, something funky happens with the TSC. ACPI-fast seems to be doing a bit better... I'll leave this in for a bit and see how things go. Thanks Colin. -- ________________________ Warm Regards Prakhar Goel