On Mon, Apr 30, 2012 at 3:03 PM, Markos Chandras <[email protected]> wrote: > 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" <[email protected] >> <mailto:[email protected]>> wrote: >> >> On 04/28/2012 01:24 AM, Matthew Marlowe wrote: >>> On Fri, Apr 27, 2012 at 3:54 PM, Markos Chandras >> <[email protected] <mailto:[email protected]>> 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. In 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 curious. -- :wq
