From owner-freebsd-current@FreeBSD.ORG Tue Feb 3 22:02:43 2015 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 79D8A143 for ; Tue, 3 Feb 2015 22:02:43 +0000 (UTC) Received: from mail-lb0-x22f.google.com (mail-lb0-x22f.google.com [IPv6:2a00:1450:4010:c04::22f]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id ED622690 for ; Tue, 3 Feb 2015 22:02:42 +0000 (UTC) Received: by mail-lb0-f175.google.com with SMTP id 10so41221566lbg.6 for ; Tue, 03 Feb 2015 14:02:41 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:in-reply-to:references:date:message-id:subject :from:to:cc:content-type; bh=hK8Br/jFJHpzeEt9IGgRzxwcFcmYGQsrDHUNLFDDehQ=; b=iptM3Tub9hbaDvap2LURJCl0N6hVexrtp8gL6ndy6aBHCCmHOPOTrcXNhtPVpxZCyk Q+4kGHLkhjWYxtOLgK/O4rp+4DJXIFsN69ehxUEuqZLP3N5dW3tIVojRkUOXcjcPArJG DG7TR5Rq/KeizmfejSmRM34M+0SnrvXFnYx02oicPn6tZVUjFK9BtFBHlU+THAyCPD26 67+oLgd3MbK75QN03HpaZqFNa8JyXFWjuyivd9yR5iwlgFToIdMoXTjw/LIK3LSeNTxc g6UWJsXpu5qTXp24F/JPZP1dokcSHG0ZNP+ZNVTlPkjghWHx7HpynMpJ8Z9wybdQLwWf UcTw== MIME-Version: 1.0 X-Received: by 10.152.43.18 with SMTP id s18mr27335825lal.26.1423000961078; Tue, 03 Feb 2015 14:02:41 -0800 (PST) Sender: rizzo.unipi@gmail.com Received: by 10.114.19.206 with HTTP; Tue, 3 Feb 2015 14:02:41 -0800 (PST) In-Reply-To: <8089702.oYScRm8BTN@overcee.wemm.org> References: <8089702.oYScRm8BTN@overcee.wemm.org> Date: Tue, 3 Feb 2015 23:02:41 +0100 X-Google-Sender-Auth: 3KCX1xfnoY36E6u0Accd7BkLgvw Message-ID: Subject: Re: PSA: If you run -current, beware! From: Luigi Rizzo To: Peter Wemm Content-Type: text/plain; charset=UTF-8 X-Content-Filtered-By: Mailman/MimeDel 2.1.18-1 Cc: freebsd-current X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 03 Feb 2015 22:02:43 -0000 On Tuesday, February 3, 2015, Peter Wemm wrote: > Sometime in the Dec 10th through Jan 7th timeframe a timing bug has been > introduced to 11.x/head/-current. With HZ=1000 (the default for bare > metal, > not for a vm); the clocks stop just after 24 days of uptime. This means > Signed 32 bit overflow it seems from the numbers ? Wasn't that a windows feature in the old days ? :) Cheers Luigi -- -----------------------------------------+------------------------------- Prof. Luigi RIZZO, rizzo@iet.unipi.it . Dip. di Ing. dell'Informazione http://www.iet.unipi.it/~luigi/ . Universita` di Pisa TEL +39-050-2211611 . via Diotisalvi 2 Mobile +39-338-6809875 . 56122 PISA (Italy) -----------------------------------------+-------------------------------