# NousResearch/hermes-agent · Sidebar cache rebuild causing desktop OOM crash

## Open now

- 1 issue, 2 PRs open on GitHub.
- #62964: Desktop renderer OOM crash within ~25s of launch (Linux, fresh main build)
- PR #133953: fix(desktop): stop the sidebar session list rebuilding its measurement cache every render
- PR #134041: fix(desktop): stop the sidebar session list rebuilding its measurement cache every render \[risk 0.65\]

A bug where the sidebar session list was rebuilding its measurement cache on every render, leading to an out-of-memory crash on Linux desktop within roughly 25 seconds of launch. Two entries appear to be the same fix at different risk assessments.

## TL;DR

- 3 member(s): 1 open issue(s), 0 closed issue(s), 2 open PR(s), 0 merged PR(s), 0 PR(s) closed without merging.
- No fix has been merged to main; one or more PRs were attempted (see below).
- **Recommended:** review the prior/competing PR(s) below. A fix was attempted but not merged; your case may extend or revive that work.

## Maintainer resolution verdict

- Internal-tracker verdict over this cluster's issue members: `unresolved`. This is distinct from the fix status above. Weigh it yourself.

## How this cluster was grouped

- Link evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.
- Pairwise link density `0.67`: the share of member pairs that carry a link, counting a structural link in full and a relevance-only link at 0.36. `1.00` means every pair is linked.

## Open related issues

- #62964: Desktop renderer OOM crash within ~25s of launch (Linux, fresh main build)

## Prior & competing PRs

- **#133953: fix(desktop): stop the sidebar session list rebuilding its measurement cache every render**. open
  - maintainer direction: category `uncategorized`; implication `needs_llm`; refs `cd41923f28ff926bd59a629d33e26f9a63d76072`
  - files: `apps/desktop/src/app/chat/sidebar/virtual-session-list.render-budget.test.tsx`, `apps/desktop/src/app/chat/sidebar/virtual-session-list.tsx`
- **#134041: fix(desktop): stop the sidebar session list rebuilding its measurement cache every render \[risk 0.65\]**. open
  - maintainer direction: category `uncategorized`; implication `needs_llm`; refs `03ae76e0b5b407e2b657b9794448a2befc1d30e5`
  - files: `apps/desktop/src/app/chat/sidebar/virtual-session-list.render-budget.test.tsx`, `apps/desktop/src/app/chat/sidebar/virtual-session-list.tsx`

## Fix status

- No merged fix on record.
- Subsystem: `apps/desktop`