Agent/gateway hangs and session overflow edge cases
Cluster 89297 · agent. Data as of
Nothing open on GitHub. Fix merged in #90605 on 20 Aug 2026. Check it covers your case.
The short answer
- Known?
- Yes. 3 related items grouped here, 1 issue already closed.
- Fix event
- A fix was merged to main in PR #90605. Check it covers your case. No release data is tracked.
- Tracker
- The maintainers' tracker marks this
unresolved. That is separate from the fix event. - Still open
- Nothing open on GitHub.
Covers a gateway process that hangs indefinitely when a model API call never returns, and two related fixes warning against or guarding against uncompressed session context-window overflow when compression is disabled.
Open issues0
Open PRs0
Fixes on record
-
#90605 fix(agent): warn when an uncompressed session exceeds the context window (compression disabled)
files:
agent/conversation_loop.py,agent/turn_context.py,run_agent.py,tests/agent/test_uncompressed_context_guardrail.py
1 PR closed without merging
From the close comments: merged via another change 1
-
#89444 fix(agent): guard against uncompressed session overflow when compression is disabled (#89297) · merged via another change →
246477a,#90605,#89297
Closed issues · 1
- Closed#89297Gateway hangs permanently when a model API call never returns (heartbeat stops, STAT=U, SIGTERM ignored, needs SIGKILL)
How this cluster was grouped
-
Link evidence (
structural links throughout): every member is connected by structural evidence: shared changed files, or a closing/superseded reference. -
Pairwise link density
0.67: the share of item pairs that carry a link, counting a structural link in full and a relevance-only link at 0.36.1.00means every pair is linked.
Pick up a Lab task
Check whether a fix covers the open issues here, with your own agent. Bring back evidence for maintainers.
Open the LabAt a glance
- Subsystem
- agent
- Merged PRs
- #90605
- Closed issues
- 1
- Attempts
- 1 PR closed without merging
- Fix link checked
- 20 Aug 2026