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authorArthur Hanson Rasmusson <arthur@vgpu.io>2026-11-09 19:08:20 -0500
committerArthur Hanson Rasmusson <arthur@vgpu.io>2026-11-09 19:08:20 -0500
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wiki: 2026-11-09 evening refresh 2 - forced GLX reaches glcore; windowed GL waits on kernel kick completion
Refresh STATE-CURRENT, the Main Page and the status/frontier pages: with SDL_VIDEO_X11_FORCE_EGL=0 the windowed GL path selects libnvidia-glcore, but the minimal glxgears hangs in the glcore kick wait (poll on the per-slot /dev/nvidia-modeset fd) while the host completes the beef notifier memory. The X DDX get-word/notifier completion, the DDX 4 GB sysmem footprint and physical dispatch of the GL draws remain. Published to open-iov.org.
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diff --git a/wiki/Execution-Frontier.md b/wiki/Execution-Frontier.md
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@@ -14,7 +14,7 @@
> [`../docs/04-implementation/03-execution-frontier.md`](../docs/04-implementation/03-execution-frontier.md);
> the docs tree wins on disagreement.
-Status: 2026-11-09, tree `master @ e342bd0f`.
+Status: 2026-11-09, tree `master @ 21e0d611`.
Tags: `[live]` observed; `[wip]` partial; `[wall]` current blocker; theories
are labelled as such.
@@ -103,10 +103,13 @@ OpenGL 4.6.0 with direct rendering, and the X DDX waits are fixed
release applied); the direct GL client's GR and CE channels submit and retire,
and the X DDX kick channel is decoded. GZDoom reached `MAP01` once the DDX
push-buffer loop was unblocked, but on Mesa llvmpipe — not the emulated vGPU.
-What is missing is **rendered pixels through the NVIDIA path**: the renderer
-backend (Vulkan ICD device creation or forced GLX), the DDX get-word/notifier
-completion and physical dispatch of the GL draws are the named walls, and the
-guest Vulkan pipeline's inline-to-memory upload arm remains its gap. The full
+What is missing is **rendered pixels through the NVIDIA path**: forcing GLX
+now selects `libnvidia-glcore`, but the minimal windowed `glxgears` hangs in
+the glcore kick wait (the client polls its per-slot `/dev/nvidia-modeset` fd
+and the guest kernel never signals the event), the DDX push-buffer
+get-word/notifier completion is not implemented, and the direct-GL draws still
+report no physical dispatch; the guest Vulkan pipeline's inline-to-memory
+upload arm remains its gap. The full
picture lives on [`Graphics-Execution.md`](Graphics-Execution.md).
No breadth beyond these is claimed: Windows guests, migration and performance
@@ -165,11 +168,13 @@ CUDA guests is in progress.
**Issue D — the graphics pixel frontier.** The display/KMS stack and the GL
client now run end to end (NvKms registers, X settles, GL 4.6, direct-GL
-channels submit and retire, the X DDX waits are fixed), but no rendered
-(non-black) frame has been produced yet through the NVIDIA path; GZDoom's
-`MAP01` is a Mesa llvmpipe datapoint. The renderer backend (Vulkan ICD or
-forced GLX), the DDX get-word/notifier completion and physical dispatch of
-the GL draws (`forwarded=0`) are the named blockers
+channels submit and retire, the X DDX waits are fixed), and forcing GLX
+selects `libnvidia-glcore`; but the minimal windowed `glxgears` hangs in the
+glcore kick wait (the client polls its per-slot `/dev/nvidia-modeset` fd and
+the guest kernel never signals the event), and no rendered (non-black) frame
+has been produced yet. The kernel-visible present completion, the DDX
+get-word/notifier completion and physical dispatch of the GL draws
+(`forwarded=0`) are the named blockers
([`Graphics-Execution.md`](Graphics-Execution.md)).
## 6. Lines of investigation (live)