drm-kmod vmwgfx.ko Crashes system

[Johannes Lundberg]

Hi

Don’t expect anything from 4.16 based kmods. It works better with 5.0
branches but still there are bugs that need to be fixed for vmwgfx. for
example race condition on multi-cpu vms.  I meant to write up a blog post
about the driver ones it was in workable state. Work has gotten in between
so the whole thing has been delayed.


On Sat, Oct 19, 2019 at 11:46 <jardows at sbcglobal.net> wrote:

> I appreciate the insight, but I do not believe that is what I am
> experiencing.  I just installed a 12.0-RELEASE VM, installed src, updated
> with freebsd-update, downloaded the ports tree, then installed drm-kmod via
> ports.  I am experiencing the same issue.
>
>
>
> If this driver works at all, I figure there should be somebody who has
> used it successfully, and would know what conditions are necessary to make
> it work.
>
>
>
> Even though I cannot find any documentation as to its use, I am beginning
> to suspect that this driver only works with ESXi, and not VMWare
> Workstation.
>
>
>
> From: Kevin Oberman <rkoberman at gmail.com>
> Sent: Friday, October 18, 2019 11:35 PM
> To: Jacob Meadows <jardows at sbcglobal.net>
> Cc: freebsd-x11 at freebsd.org
> Subject: Re: drm-kmod vmwgfx.ko Crashes system
>
>
>
> On Fri, Oct 18, 2019 at 12:54 PM Jacob Meadows <jardows at sbcglobal.net
> <mailto:jardows at sbcglobal.net> > wrote:
>
>
> I have installed with pkg on latest and on release_1 (currently running on
> 12.1-RC1, but have used other versions with the same results).
> I have also freshly installed from ports with the latest updates.
> I have not rebuilt my kernel after system installation.
> I am not sure what version of kmod I would need to be in sync with my
> currently installed vmware version. I am currently using VMWare Workstation
> Player 15.5.0 build-14665864 installed on Windows 10 1809 Enterprise.
>
>
>
> This is a problem. ATM, packages for 12 are being compiled against
> 12.0-RELEASE. KBI stability between minor releases is not guaranteed. At
> least once in the 11-STABLE tree, a change broke the virtualbox-ose-kmod
> resulting in a system panic. Until the first build of packages after 11.1
> went EOL, the only fix was to download port and kernel sources and build
> the port against those sources. This may be another case. It's why it is
> recommended that all kernel modules in ports be rebuilt whenever the kernel
> is updated, but that does not work with packages and, in the last case, it
> did not work until 11.2 reached EOL and the packages were built against
> 11.2.
>
>
>
> This could well be totally wrong. It's really speculation.
>
> --
>
>
> Kevin Oberman, Part time kid herder and retired Network Engineer
> E-mail: rkoberman at gmail.com <mailto:rkoberman at gmail.com>
>
> PGP Fingerprint: D03FB98AFA78E3B78C1694B318AB39EF1B055683
>
>
>
>
>
> On Friday, October 18, 2019, 1:57:32 PM EDT, Kevin Oberman <
> rkoberman at gmail.com <mailto:rkoberman at gmail.com> > wrote:
>
>
>
>
>
> On Fri, Oct 18, 2019 at 8:45 AM Jacob Meadows <jardows at sbcglobal.net
> <mailto:jardows at sbcglobal.net> > wrote:
>
> I saw that drm-kmod installs vmwgfx.ko.  I thought this would be nice to
> enable 3d acceleration in my VMWare player VM, but every time I load it,
> the virtual machine freezes.
>
> I have tried putting a line in the rc.conf like for the amdgpu.ko, and
> directly loading via kldload.  I have tried with the VM setting 3d
> acceleration on and off.  I have tried with 12.0-RELEASE, 13-CURRENT, and
> now 12.1-RC1.  The crazy thing is I cannot find any errors recorded
> /var/log/messages, simply some information about the driver loading, then
> nothing and the system locks up.
>
> I am having a hard time finding any documentation regarding this driver.
> Is it designed to work with VMWare player, or perhaps it is for ESXi only?
>
>
>
> Check the mtime on /boot/kernel/kernel and /boot/modules/vmwgfx.ko. Since
> this module is installed by a port, not the base system, it is critical
> that it be in sync with the kernel. Have you rebuilt your drm kmod port
> port since your kernel was last built? It's really critical that kernel
> modules be in sync with the kernel. It is also possible that it needs to be
> in sync with the currently installed vmware.
>
> --
>
>
> Kevin Oberman, Part time kid herder and retired Network Engineer
> E-mail: rkoberman at gmail.com <mailto:rkoberman at gmail.com>
>
> PGP Fingerprint: D03FB98AFA78E3B78C1694B318AB39EF1B055683
>
>
>
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