From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pigeon.gentoo.org ([208.92.234.80] helo=lists.gentoo.org) by finch.gentoo.org with esmtp (Exim 4.60) (envelope-from ) id 1SOwDT-0001TS-Um for garchives@archives.gentoo.org; Mon, 30 Apr 2012 19:25:00 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id CFDF6E0C16; Mon, 30 Apr 2012 19:24:40 +0000 (UTC) Received: from mail-bk0-f53.google.com (mail-bk0-f53.google.com [209.85.214.53]) by pigeon.gentoo.org (Postfix) with ESMTP id 7EB69E0C9A for ; Mon, 30 Apr 2012 19:22:20 +0000 (UTC) Received: by bkcjk13 with SMTP id jk13so2440295bkc.40 for ; Mon, 30 Apr 2012 12:22:19 -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 :content-type:content-transfer-encoding; bh=mMh8xBMBA/D/jm8b/AzfyTE5xRxmMDf+duiolt0yL6o=; b=cnr78vkJXcu6APKIeQiAktc+h4xkVqvRsUsioiDU3UpOZOC+Csh4ShFWP87L0jPOIi tDkQENf/ukKVrbt6rYDQvF1qfTTSflHZnKClydXfRMH8Y6OvTUvWShgRFt4bJM/hse0Y euRli3RoRP4QPBWPCKWiUVrfdjiixqkAPNBAyOQviNMnT4c6olDqNCstlT40PH4rH8h1 2PtfwZPWIAvtbX4tGMevZUfMEpKiOE2+PLf7p4HVqvBa39XBNRi9UShVtt7cbyCUF6yW HD3AT78xRW9qf/anXUqxiGPNCHHD5Oy0LNWnbK0PLp07vs89eNOlAA0/Sq1x8srH68rc HuHA== Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org MIME-Version: 1.0 Received: by 10.204.9.204 with SMTP id m12mr7395986bkm.114.1335813739602; Mon, 30 Apr 2012 12:22:19 -0700 (PDT) Received: by 10.204.153.213 with HTTP; Mon, 30 Apr 2012 12:22:19 -0700 (PDT) In-Reply-To: <4F9EE1EC.4010402@gentoo.org> References: <4F9AF513.6080207@gentoo.org> <4F9B23C0.5080405@gentoo.org> <4F9D9516.9020308@gentoo.org> <4F9EE1EC.4010402@gentoo.org> Date: Mon, 30 Apr 2012 15:22:19 -0400 Message-ID: Subject: Re: [gentoo-user] Re: Gentoo segfaults on virtualbox-4.1.14 when running on AMD bulldozer From: Michael Mol To: gentoo-user@lists.gentoo.org Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Archives-Salt: 638ff0f8-a1fd-4396-9adf-1ff7a65d14f1 X-Archives-Hash: 964924d17c275046373b5a0635ea369e On Mon, Apr 30, 2012 at 3:03 PM, Markos Chandras wrot= e: > On 04/30/2012 02:33 PM, Michael Mol wrote: >> Neat. Random guess, but it could be a bug in Bulldozer's memory >> controller or IOMMU. Try disabling IOMMU support in your kernel? >> >> On Apr 29, 2012 3:29 PM, "Markos Chandras" > > wrote: >> >> On 04/28/2012 01:24 AM, Matthew Marlowe wrote: >>> On Fri, Apr 27, 2012 at 3:54 PM, Markos Chandras >> > wrote: >>>> On 04/27/2012 11:45 PM, Nikos Chantziaras wrote: >>>>> On 27/04/12 22:35, Markos Chandras wrote: >>>>>> I replaced my Phenom II cpu with a new 6-core AMD >>>>>> bulldozer. >> However, I >>>>>> noticed that all of my Gentoo virtual machines throw >>>>>> (compiler) segmentation faults when building or running any >>>>>> application. >>>>> >>> >>> I'm not familiar with virtualbox, but I've seen similar issues >>> occur with vmware and the solution was to at least temporarily >>> mask whatever new cpu flags the new hypervisor was passing to the >>> guest. =C2=A0In vmware, one could limit the cpu flags to maintain >>> compatibility with various cpu releases which was especially >>> helpful in clusters.... Yes, your gentoo vms should have been >>> fine ..but at least until you track down the issue, see if >>> virtualbox has a similar feature? >>> >> Interestingly this seems to be caused when using my wireless card >> to bridge the virtualbox interfaces onto. I can't reproduce (yet) >> any segfaults when I use the onboard ethernet card. I have the >> following wireless card (supported by the rtl8180 kernel module) >> >> 04:06.0 Ethernet controller: Belkin F5D7000 v7000 Wireless G >> Desktop Card [Realtek RTL8185] (rev 20) >> >> -- Regards, Markos Chandras / Gentoo Linux Developer / Key ID: >> B4AFF2C2 >> > AMD IOMMU (Device Drivers -> Hardware IOMMU ) makes no difference. I > will have to move the discussion to virtualbox forums/ML as this seems > a driver or virtualbox problem. Bridge networking on that wireless > card work flawlessly when using Windows 7 as host. Report back when you find out the meat of the problem. I'm intensely curiou= s. --=20 :wq