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Date:      Mon, 17 Feb 2020 01:24:41 +0000 (UTC)
From:      Greg V <greg@unrelenting.technology>
To:        Yuri Pankov <yuripv@yuripv.me>
Cc:        freebsd-x11 <freebsd-x11@freebsd.org>
Subject:   Re: does vmwgfx work at all?
Message-ID:  <aa6a4b7d-2715-48ee-8ce8-8eb128407169@localhost>
In-Reply-To: <2775d554-c451-119d-4e2e-ed335b0c84ad@yuripv.me>
References:  <2775d554-c451-119d-4e2e-ed335b0c84ad@yuripv.me>

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Feb 17, 2020 12:36:17 AM Yuri Pankov :

> (resending as apparently the message didn't get through)
>
> I am trying to use the vmwgfx module on VMware Workstation 15.5.1 VM,
> running 13.0-CURRENT, and it seems that none of drm-current-kmod and
> drm-devel-kmod's modules work -- former simply reboots the system
> (panic, unable to save dump), latter panics as well (below).
>
> https://wiki.freebsd.org/Graphics lists vmwgfx as "experimental", but
> OTOH the wording there seems to suggest it should at least load.
>
> Any hints?

IIRC there was a concurrency bug and you need to run a single-core VM. The trace below hints at locking too:

> thread_lock_validate() at thread_lock_validate+0x4/frame 0xfffffe00a2b47a30





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