# NousResearch/hermes-agent · Fix ancestry check failing under sandboxed /proc

## Open now

- Nothing open on GitHub.

A bug where unreadable /proc/1 entries (e.g. under firejail or sandboxed environments) caused the PID ancestry check to fail, breaking desktop updates. The fix traverses the process ancestry link by link instead of relying on /proc/1 being readable.

## TL;DR

- 3 member(s): 0 open issue(s), 1 closed issue(s), 0 open PR(s), 1 merged PR(s), 1 PR(s) closed without merging.
- A fix was merged to main in PR #128511. Verify it addresses your case.
- **Recommended:** read PR #128511 (and any competing PRs below) before filing. Confirm the merged change covers your symptom.

## Maintainer resolution verdict

- Internal-tracker verdict over this cluster's issue members: `resolved` · deciding PR(s): `pr-128511`. 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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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.

## Closed / duplicate issues

- #87514: \[Bug\]: Desktop update always fails under firejail/sandboxed /proc — _is_ancestor_pid() dies on unreadable PID 1 (regression of #75847)

## Prior & competing PRs

- **#128511: fix(update): decide ancestry link by link so an unreadable /proc/1 cannot hide the orchestrator**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`
  - files: `hermes_cli/update_lock.py`, `tests/hermes_cli/test_update_lock.py`
- **#87536: fix(update): decide ancestry link by link so an unreadable /proc/1 cannot hide the orchestrator**. closed without merge
  - maintainer direction: category `implemented_elsewhere`; implication `superseded`

## Fix status

- Merged to main in PR #128511 (cited above). No release data is tracked. Verify downstream.
- Fix last verified (merged) `2026-09-30`.
- Subsystem: `apps/desktop`