From owner-freebsd-xen@FreeBSD.ORG Fri Feb 18 23:26:06 2011 Return-Path: Delivered-To: freebsd-xen@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 7E69F1065670 for ; Fri, 18 Feb 2011 23:26:06 +0000 (UTC) (envelope-from ivoras@gmail.com) Received: from mail-qw0-f54.google.com (mail-qw0-f54.google.com [209.85.216.54]) by mx1.freebsd.org (Postfix) with ESMTP id 2D9CD8FC0A for ; Fri, 18 Feb 2011 23:26:05 +0000 (UTC) Received: by qwj9 with SMTP id 9so3631245qwj.13 for ; Fri, 18 Feb 2011 15:26:05 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:sender:in-reply-to:references:from :date:x-google-sender-auth:message-id:subject:to:cc:content-type :content-transfer-encoding; bh=G2tHCxhTHMk26kQcgj3hdEa0u/E7M5NRtaTKok5sKIU=; b=N7ni5MgD1Wkolcij5rjcnh9Jrjmxwf2uTolyjpd6fAbuo7AvV9yVeNdej0pGsDNVcq 0Vi/crwRt5mmUl12SmxAPrci1FG4d6PgXMp6qpH/7USaAepMEj4k7J1tSy1vtbP0Vy21 wj9SnFwkHYI8n6df8LeZ2gsPMeA2DA8Qfgrvg= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:from:date :x-google-sender-auth:message-id:subject:to:cc:content-type :content-transfer-encoding; b=PL/Ga2bCv5X3gbn4munfvlcH5F2AB50hZEiemhoYrlP6AQSSwOqGYjU/Pgtrq5xHay UVz0XeOhu2Hu01ab2QK3mKy2zEe+Tjf8NMBnBiVPIDKkKQfTYQ3kX8bGHp2i4Uup3n0V i6wl/p4Rr6DCH7gDWkDTIkGJ40lqFz1LSG+Lw= Received: by 10.229.137.15 with SMTP id u15mr38588qct.220.1298071565123; Fri, 18 Feb 2011 15:26:05 -0800 (PST) MIME-Version: 1.0 Sender: ivoras@gmail.com Received: by 10.229.188.140 with HTTP; Fri, 18 Feb 2011 15:25:25 -0800 (PST) In-Reply-To: <4D5E92F3.6050709@barafranca.com> References: <4D5E7CF7.8020209@barafranca.com> <4D5E92F3.6050709@barafranca.com> From: Ivan Voras Date: Sat, 19 Feb 2011 00:25:25 +0100 X-Google-Sender-Auth: C-0iVfcB0MJ3nmhoujo08ulOIPk Message-ID: To: Hugo Silva Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Cc: freebsd-xen@freebsd.org Subject: Re: XenServer? X-BeenThere: freebsd-xen@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussion of the freebsd port to xen - implementation and usage List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 18 Feb 2011 23:26:06 -0000 On 18 February 2011 16:40, Hugo Silva wrote: > I haven't tested with high vcpu counts, but in this particular VM, it's b= een > running happily with 2 VCPUs and no noticeable problems. No panics, =C2= =A0 no > noticeable performance problems (after the tso fix) and certainly not the > famous 'time went backwards' problem. No such luck here; I've just tried an amd64 machine (8-STABLE from today) in a new installation of XenServer 5.6 and while the GENERIC kernel works stable enough, the XENHVM kernel produces all kinds of timer-related problems, accompanied by messages like: Feb 18 23:20:03 xbsd kernel: calcru: runtime went backwards from 28669021884109 usec to 22622950 usec for pid 11 (idle) The difference between 28669021884109 and 22622950 is huge! It almost looks like a memory corruption.