[Mesa-dev] [Bug 106677] vmwgfx: atom (electron-based app) causes corruption, hangs

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=106677

--- Comment #2 from Deepak <drawat at vmware.com> ---
(In reply to David Cuthbert from comment #0)
> I'm filing this currently so I have a place to keep notes on this bug.
> 
> Running the atom text editor under various OSes (tried Linux Mint 18.3,
> Ubuntu 18.04, and currently using Fedora 28) results in minor screen
> glitches, eventually followed by drawing going completely haywire. I
> recompiled vmwgfx.ko from the current HEAD which resulted in fewer glitches,
> but it never completely goes away.
> 
> The hangs are always immediately preceded by:
> [drm:vmw_cmdbuf_work_func [vmwgfx]] *ERROR* Command "(null)" causing device
> error.
> [drm:vmw_cmdbuf_work_func [vmwgfx]] *ERROR* Command buffer offset is 28
> [drm:vmw_cmdbuf_work_func [vmwgfx]] *ERROR* Command size is 24
> 

Hi David, thanks for the bug report. Do you see the command buffer error with
the new top of the tree vmwgfx only ? I tried to reproduce this bug with clean
Ubuntu 18.04 and Atom installed from software center. I see that Atom text
editor will be unresponsive but couldn't see the kernel command buffer errors.

Will try with Fedora 28 later.

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