Re: drm-kmod vmwgfx.ko Crashes system

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 <[email protected]> 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 <[email protected]>
> Sent: Friday, October 18, 2019 11:35 PM
> To: Jacob Meadows <[email protected]>
> Cc: [email protected]
> Subject: Re: drm-kmod vmwgfx.ko Crashes system
>
>
>
> On Fri, Oct 18, 2019 at 12:54 PM Jacob Meadows <[email protected]
> <mailto:[email protected]> > 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: [email protected] <mailto:[email protected]>
>
> PGP Fingerprint: D03FB98AFA78E3B78C1694B318AB39EF1B055683
>
>
>
>
>
> On Friday, October 18, 2019, 1:57:32 PM EDT, Kevin Oberman <
> [email protected] <mailto:[email protected]> > wrote:
>
>
>
>
>
> On Fri, Oct 18, 2019 at 8:45 AM Jacob Meadows <[email protected]
> <mailto:[email protected]> > 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: [email protected] <mailto:[email protected]>
>
> PGP Fingerprint: D03FB98AFA78E3B78C1694B318AB39EF1B055683
>
>
>
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