From owner-freebsd-virtualization@FreeBSD.ORG Tue Jun 23 02:24:06 2015 Return-Path: Delivered-To: freebsd-virtualization@nevdull.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 28725C5D for ; Tue, 23 Jun 2015 02:24:06 +0000 (UTC) (envelope-from neelnatu@gmail.com) Received: from mail-wg0-x22a.google.com (mail-wg0-x22a.google.com [IPv6:2a00:1450:400c:c00::22a]) (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 BA2327CA; Tue, 23 Jun 2015 02:24:05 +0000 (UTC) (envelope-from neelnatu@gmail.com) Received: by wgck11 with SMTP id k11so28632558wgc.0; Mon, 22 Jun 2015 19:24:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=DtjOAGTMuta3yuS52rI/OYzuNKAeNgv1fSFPthhlxBA=; b=xaP+CzwziciSySuXzFE+Uehyz2zWTOi99K+P83Urt8ORbGeO3kKm+fna7ns6unTPzQ JaoQrUIcAohqD/uh0LVQV4kXzBbknpgU2SAhIp9f1AC+RPIUH3pO/Xq6cInBEP6ymicm aJK73xVqrwUyb8BfMn6FFf0MA6fOjzGMjyeXRgrt4u/8zYSwLLtNYVPbhylDm/5ZyB+h LAdgrHmVWvwNBbG8CnGRPPWzeAi7P3g31HQKpPxX7BFz5vpuJpUxVkfyNPBReNvXZCro P42EtRTzqjogMUVf54ZcvuGl7e30IeevyZwsdouK7XEKco7wpg+12xkoF5iV88AmQfgU u2lQ== MIME-Version: 1.0 X-Received: by 10.194.179.10 with SMTP id dc10mr45032583wjc.63.1435026242952; Mon, 22 Jun 2015 19:24:02 -0700 (PDT) Received: by 10.27.52.18 with HTTP; Mon, 22 Jun 2015 19:24:02 -0700 (PDT) In-Reply-To: <55883537.3030400@FreeBSD.org> References: <5588317C.8020203@FreeBSD.org> <558832E8.9080407@freebsd.org> <55883537.3030400@FreeBSD.org> Date: Mon, 22 Jun 2015 19:24:02 -0700 Message-ID: Subject: Re: dtrace fbt vs vmm From: Neel Natu To: Andriy Gapon Cc: Peter Grehan , "freebsd-virtualization@freebsd.org" Content-Type: text/plain; charset=UTF-8 X-BeenThere: freebsd-virtualization@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: "Discussion of various virtualization techniques FreeBSD supports." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 23 Jun 2015 02:24:06 -0000 Hi Andriy, On Mon, Jun 22, 2015 at 9:17 AM, Andriy Gapon wrote: > On 22/06/2015 19:08, Peter Grehan wrote: >> Hi Andriy, >> >>> I haven't investigated this issue further, but if there are any unsafe functions >>> in vmm it would be nice to blacklist them in the fbt code. >>> Perhaps blacklisting everything from vmm module could be a stopgap solution. >> >> Intel or AMD ? We've been able to run dtrace on Intel; less (to no) coverage on >> AMD so there's quite possibly bugs there. > > Peter, > > it's AMD again. > Thanks! > This was an issue with 'svm_launch()' FBT tracing and is fixed in r284712. Details are in the commit message: https://svnweb.freebsd.org/base?view=revision&revision=284712 best Neel > -- > Andriy Gapon > _______________________________________________ > freebsd-virtualization@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-virtualization > To unsubscribe, send any mail to "freebsd-virtualization-unsubscribe@freebsd.org"