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fix: memory leak in notebook cell status bar commands - #336028
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Dmitriy Vasyura (dmitrivMS) merged 1 commit intoSep 29, 2026
Merged
Dmitriy Vasyura (dmitrivMS) merged 1 commit into
Dmitriy Vasyura (dmitrivMS) merged 1 commit into
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Simon Siefke (SimonSiefke)
September 13, 2026 09:27
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🟢 Approval recommended
The targeted fix is correct and its lifecycle edge cases are adequately tested.
Pull request overview
Disposes notebook status-bar command resources when cached results are released, preventing extension-host memory leaks.
Changes:
- Dispose cached command stores before deletion.
- Add tests for cleanup, isolation, and repeated releases.
File summaries
| File | Description |
|---|---|
extHostNotebook.ts |
Disposes status-bar cache entries. |
extHostNotebookStatusCommands.test.ts |
Tests command-resource lifetimes. |
Review details
- Files reviewed: 2/2 changed files
- Comments generated: 0
- Review effort level: Balanced
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Dmitriy Vasyura (dmitrivMS)
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freeze-slow-crash-leak
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Kyle Cutler (kycutler)
Dmitriy Vasyura (dmitrivMS)
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September 29, 2026 02:09
Dmitriy Vasyura (dmitrivMS)
approved these changes
Sep 29, 2026
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Simon Siefke (@SimonSiefke) Thank you! |
Anthony Kim (anthonykim1)
approved these changes
Sep 29, 2026
Ladislau Szomoru (lszomoru)
approved these changes
Sep 29, 2026
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Details
Notebook cell status-bar items can register commands with arguments. Releasing the items deletes their cache entry, but does not dispose the command store saved in that entry.
Change
Dispose the cached command store before deleting the status-bar cache entry.
Before
When refreshing notebook cell status-bar items 37 times, 37 old command arguments remain in the extension host:
After
No more released status-bar command arguments accumulate in the same 37-cycle test.
Test Video
notebook-status-desktop-video.webm