On Thursday, February 18, 2016 12:05:14 PM Peter Humphrey wrote: > On Thursday 18 February 2016 11:23:42 I wrote: > > On Thursday 18 February 2016 11:51:19 J. Roeleveld wrote: > > > On Thursday, February 18, 2016 10:06:25 AM Peter Humphrey wrote: > > --->8 > > > > > > I still can't shake the idea that I don't have my kernel set up right. > > > > Do > > > > I > > > > need anything particular in control groups, or name spaces, or > > > > anything? > > > > > > About the kernel: I don't have anything special. > > > > > > USE-flags: > > > > > > [I] app-emulation/virtualbox > > > > > > Installed versions: 4.3.32{tbz2}(03:46:09 PM 11/25/2015)(additions > > > > > > alsa extensions java opengl pam pulseaudio qt4 sdk udev -doc -headless > > > -libressl - python -vboxwebsrv -vnc ELIBC="-FreeBSD" > > > PYTHON_TARGETS="python2_7") > > > > My USE flags: > > Installed versions: 4.3.32{tbz2}(10:25:28 18/02/16)(additions alsa > > > > extensions opengl pam qt4 sdk udev -doc -headless -java -libressl > > -pulseaudio -python -vboxwebsrv -vnc ELIBC="-FreeBSD" > > PYTHON_TARGETS="python2_7") > > > > I don't have pulseaudio here, but do I need java for virtualbox? > > > > > What does " dmesg " have to say? > > > > > > For me: > > > % dmesg | grep -i vbox > > > [ 165.950507] vboxdrv: Found 8 processor cores. > > > [ 165.950787] vboxdrv: fAsync=0 offMin=0x1fe offMax=0xa4f9 > > > [ 165.950828] vboxdrv: TSC mode is 'synchronous', kernel timer mode is > > > 'normal'. > > > [ 165.950829] vboxdrv: Successfully loaded version 4.3.32 (interface > > > 0x001a000b). > > > [ 165.978641] vboxpci: pci-stub module not available, cannot detach PCI > > > devices > > > [ 165.978643] vboxpci: IOMMU found > > > > $ dmesg | grep -i vbox > > [ 4.163645] vboxdrv: Found 4 processor cores. > > [ 4.163748] vboxdrv: fAsync=0 offMin=0x1d8 offMax=0xd44 > > [ 4.163792] vboxdrv: TSC mode is 'synchronous', kernel timer mode is > > 'normal'. > > [ 4.163793] vboxdrv: Successfully loaded version 4.3.32 (interface > > 0x001a000b). > > [ 4.173458] vboxpci: pci-stub module not available, cannot detach PCI > > devices > > [ 4.173461] vboxpci: IOMMU not found (not registered) > > > > That last one is suspicious, presumably connected with this: > > > > $ dmesg | grep IOMMU > > [ 0.119875] dmar: IOMMU: failed to map dmar0 > > [ 4.173461] vboxpci: IOMMU not found (not registered) > > > > I wonder what dmar0 is. > > While exploring that, I found advice to add iommu=soft to the kernel > options. Then I got this: > > # dmesg | grep -i dmar > [ 0.000000] ACPI: DMAR 0x00000000BFE880C0 000090 (v01 AMI OEMDMAR > 00000001 MSFT 00000097) > [ 0.119714] dmar: Host address width 36 > [ 0.119873] dmar: DRHD base: 0x000000fed90000 flags: 0x1 > [ 0.120202] WARNING: CPU: 0 PID: 1 at drivers/iommu/dmar.c:829 > warn_invalid_dmar+0x7c/0x90() > [ 0.120481] Your BIOS is broken; DMAR reported at address fed90000 > returns all ones! > [ 0.123772] [<ffffffff813f12bc>] warn_invalid_dmar+0x7c/0x90 > [ 0.123934] [<ffffffff813f2549>] dmar_parse_one_drhd+0x4f9/0x550 > [ 0.124096] [<ffffffff813f1129>] dmar_walk_remapping_entries+0x29/0x140 > [ 0.124260] [<ffffffff81907be6>] dmar_table_init+0xb9/0x138 > [ 0.124421] [<ffffffff813f2050>] ? dmar_free_dev_scope+0xb0/0xb0 > [ 0.124918] [<ffffffff813f12d0>] ? warn_invalid_dmar+0x90/0x90 > [ 0.127042] dmar: IOMMU: failed to map dmar0 > [ 0.127201] dmar: parse DMAR table failure. > > Without that kernel option: > > [ 0.000000] ACPI: DMAR 0x00000000BFE880C0 000090 (v01 AMI OEMDMAR > 00000001 MSFT 00000097) > [ 0.000000] WARNING: CPU: 0 PID: 0 at drivers/iommu/dmar.c:829 > warn_invalid_dmar+0x7c/0x90() > [ 0.000000] Your BIOS is broken; DMAR reported at address fed90000 > returns all ones! > [ 0.000000] [<ffffffff813f12bc>] warn_invalid_dmar+0x7c/0x90 > [ 0.000000] [<ffffffff815749a0>] dmar_validate_one_drhd+0xb0/0xf0 > [ 0.000000] [<ffffffff813f1129>] dmar_walk_remapping_entries+0x29/0x140 > [ 0.120132] dmar: Host address width 36 > [ 0.120291] dmar: DRHD base: 0x000000fed90000 flags: 0x1 > [ 0.120472] dmar: IOMMU: failed to map dmar0 > [ 0.120631] dmar: parse DMAR table failure. > > So all the kernel option adds is some extra debug info. ATLAS@home still > can't communicate with VirtualBox. > > Now that I think about it, I did update the AMI BIOS several weeks ago. It > went from 1102 to 2101 - a bit of a step. Maybe that's what's broken my > system - well, this bit of it, anyway.
Could very well be the case. I get the following in my dmesg: # dmesg | grep -i iomm [ 0.344602] dmar: IOMMU 0: reg_base_addr fed90000 ver 1:0 cap c0000020660462 ecap f0101a [ 0.344607] dmar: IOMMU 1: reg_base_addr fed91000 ver 1:0 cap d2008020660462 ecap f010da [ 0.344688] IOMMU: dmar0 using Queued invalidation [ 0.344690] IOMMU: dmar1 using Queued invalidation [ 0.344691] IOMMU: Setting RMRR: [ 0.344700] IOMMU: Setting identity map for device 0000:00:02.0 [0xcd000000 - 0xcf1fffff] [ 0.344887] IOMMU: Setting identity map for device 0000:00:14.0 [0xcbea9000 - 0xcbeb7fff] [ 0.344908] IOMMU: Setting identity map for device 0000:00:1a.0 [0xcbea9000 - 0xcbeb7fff] [ 0.344926] IOMMU: Setting identity map for device 0000:00:1d.0 [0xcbea9000 - 0xcbeb7fff] [ 0.344939] IOMMU: Prepare 0-16MiB unity mapping for LPC [ 0.344946] IOMMU: Setting identity map for device 0000:00:1f.0 [0x0 - 0xffffff] [ 165.978643] vboxpci: IOMMU found [14502.509549] created IOMMU domain ffff88009d275748 Also, not sure if the following might help: # zgrep -i iomm /proc/config.gz CONFIG_GART_IOMMU=y # CONFIG_CALGARY_IOMMU is not set CONFIG_IOMMU_HELPER=y CONFIG_IOMMU_API=y CONFIG_IOMMU_SUPPORT=y # Generic IOMMU Pagetable Support CONFIG_IOMMU_IOVA=y # CONFIG_AMD_IOMMU is not set CONFIG_INTEL_IOMMU=y CONFIG_INTEL_IOMMU_DEFAULT_ON=y CONFIG_INTEL_IOMMU_FLOPPY_WA=y # CONFIG_IOMMU_DEBUG is not set # CONFIG_IOMMU_STRESS is not set # zgrep -i dmar /proc/config.gz CONFIG_DMAR_TABLE=y -- Joost