Re: [gentoo-user] virtualbox: no x-server after kernel upgrade to 4.12.12-gentoo

[Alexander Puchmayr]

Am Freitag, 15. September 2017, 10:43:52 schrieb R0b0t1:
> On Fri, Sep 15, 2017 at 9:47 AM, Alexander Puchmayr
>
> <alexander.puchmayr@×××××××.at> wrote:
> > Hi there,
> >
> > I'm using a gentoo-guest inside a virtual box on a Win10 host. The last
> > somewhat working combination was kernel 4.4.39/virtualbox-5.1.24.
> >
> > When I update to kernel 4.12.12, the X-Server does not work anymore (I've
> > also tried with 4.9.xx, same result -- no X)
> >
> > I used genkernel to compile the kernel, copied the previous 4.4.39-config
> > from /proc/config.gz to /usr/src/linux-4.12.12-gentoo via zcat, and did
> > no further changes; so nothing relevant should be changed, at least to my
> > knowledge.
> >
> > After compilation of the kernel, required packages have been re-emerged:
> > - app-emulation/virtualbox-guest-additions
> > - x11-drivers/xf86-video-virtualbox
> >
> > Booting with 4.12.12:
> > - sddm crashes with segfaults
> > - Starting X from the command line: X complains missing EGL_MESA_drm
> > EGL_MESA_drm_image required.
> >
> > : CommandLine Error: Option 'asan-instrument-assembly' registered more
> > : than
> >
> > once!
> > LLVM ERROR: inconsistency in registered CommandLine options
> > [??? No idea where this comes from :-( ]
> >
> >
> > cat /var/log/Xorg.0.log
> > [   793.159] (II) LoadModule: "vboxvideo"
> > [   793.159] (II) Loading /usr/lib64/xorg/modules/drivers/vboxvideo_drv.so
> > [   793.159] (II) Module vboxvideo: vendor="Oracle Corporation"
> > [   793.159]    compiled for 1.19.3, module version = 1.0.1
> > [   793.159]    Module class: X.Org Video Driver
> > [   793.159]    ABI class: X.Org Video Driver, version 23.0
> > [   793.159] (**) Load address of symbol "VBOXVIDEO" is 0x7f3840a24380
> > [   793.160] (II) VBoxVideo: guest driver for VirtualBox: vbox
> > [   793.160] (II) modesetting: Driver for Modesetting Kernel Drivers: kms
> > [   793.160] (II) FBDEV: driver for framebuffer: fbdev
> > [   793.160] (II) VESA: driver for VESA chipsets: vesa
> > [   793.160] (II) vboxvideo: kernel driver found, not loading.
> > <-- !!!!!! [   793.160] (II) vboxvideo: kernel driver found, not loading.
> > [   793.160] (II) modeset(0): using drv /dev/dri/card0
> > [   793.160] (II) Loading sub module "glamoregl"
> > [   793.160] (II) LoadModule: "glamoregl"
> > [   793.160] (II) Loading /usr/lib64/xorg/modules/libglamoregl.so
> > [   793.163] (II) Module glamoregl: vendor="X.Org Foundation"
> > [   793.163]    compiled for 1.19.3, module version = 1.0.0
> > [   793.163]    ABI class: X.Org ANSI C Emulation, version 0.4
> > [   793.163] (II) glamor: OpenGL accelerated X.org driver based.
> > [   793.217] (II) glamor: EGL version 1.4 (DRI2):
> > [   793.217] EGL_MESA_drm_image required.
> > [   793.218] (EE) modeset(0): glamor initialization failed
> >
> > dmesg shows:
> > 5.269630] VBoxService 5.1.24 r117012 (verbosity: 0) linux.amd64 (Sep 15
> > 2017 16:09:26) release log
> >
> >               00:00:00.000046 main     Log opened
> >
> > 2017-09-15T15:23:25.220990000Z
> > [    5.269691] 00:00:00.000133 main     OS Product: Linux
> > [    5.269717] 00:00:00.000165 main     OS Release: 4.12.12-gentoo
> > [    5.269740] 00:00:00.000191 main     OS Version: #1 SMP Fri Sep 15
> > 15:33:45 CEST 2017
> > [    5.269772] 00:00:00.000213 main     Executable: /usr/sbin/vboxguest-
> > service
> >
> >                00:00:00.000214 main     Process ID: 4275
> >                00:00:00.000215 main     Package type: LINUX_64BITS_GENERIC
> >
> > (OSE)
> > [    5.272160] 00:00:00.002532 main     5.1.24 r117012 started. Verbose
> > level = 0
> > [7.780006] vboxvideo 0000:00:02.0: fb0: vboxdrmfb frame buffer device
> >
> > Booting old 4.4.39 kernel    [Just select old kernel in grub]
> > - sddm shows login screen
> > - /var/log/Xorg.0.log shows lots of lines regarding VBoxVideo driver.
> > - dmesg does not show the  vboxvideo line from above
> >
> > Obviously, something is going terribly wrong here, and I'm getting stuck
> > as I do not have any Idea where to start. The only thing that changed is
> > a kernel upgrade and a rebuild of the virtual box modules.
> >
> > Any ideas?
>
> Details on this are sparse but you need to run @x11-modules-rebuild
> after a kernel upgrade. You may also want to run @module-rebuild
> depending on how you rebuilt your kernel.
>
> https://wiki.gentoo.org/wiki/X_server/upgrade
> https://forums.gentoo.org/viewtopic-p-6633091.html
>
Thanks for the answer!

I re-emerged both @x11-modules-rebuild and @module-rebuild, but it did not 
help a bit. Still the same problem.

I assume that the key is the vboxvideo line from dmesg. It registers a 
framebuffer device fb0, which may cause the Xorg-driver to fail. But I do not 
know how to disable this, since it comes from the vbox driver module itself.

Regards
	Alex