qst_0414
degraded gpu node root cause
GPU OOM / generic kernel failure
intermittent driver/kernel launch stalls (corrected 2026-09-01)
Exact spans from the benchmark corpus
Re: Critical: inference latency spike + 5xx affecting throughput (Crucible Health)
Root cause: ... rare kernel failure on a single GPU instance ... degraded kernel performance. Email 2026-08-28.
dsid_5611f05242ae4e6b9ae68d3c3e91bd54
Crucible Health: inference latency spike + transient 5xx on /v1/generate (INC-9821)
2026-09-01 (Marcus Lin): Correction after deeper node telemetry review: primary node issue was intermittent driver/kernel launch stalls (no sustained OOM).
dsid_0c1f1c83e8d44d2fa3a9f6c7b2d7b9f1
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MATCH (c:ClaimKey {question_id: $question_id}) RETURN c.id AS id, c.entity_id AS entity_id, c.key AS key, c.predicate AS predicate, c.question_id AS question_idMATCH (e:Entity)-[:HAS_CLAIM]->(c:ClaimKey {id: $claim_key_id}) RETURN e.id AS id, e.name AS name, e.entity_type AS entity_typeMATCH (c:ClaimKey {id: $claim_key_id})-[:HAS_VALUE]->(p:Proposition) RETURN p.id AS id, p.value AS value, p.status AS status ORDER BY p.idMATCH (c:ClaimKey {id: $claim_key_id})-[:HAS_VALUE]->(p:Proposition)<-[:SELECTS]-(ev:CanonEvent) OPTIONAL MATCH (newer:CanonEvent)-[:SUPERSEDES]->(ev) RETURN ev.id AS id, ev.claim_key_id AS claim_key_id, ev.selects_proposition_id AS selects_proposition_id, ev.transition AS transition, ev.temporal_quality AS temporal_quality, ev.evidence_doc_id AS evidence_doc_id, ev.occurred_at AS occurred_at, p.id AS proposition_id, newer.id AS superseded_byMATCH (ev:CanonEvent {id: $event_id})-[:SUPERSEDES*1..10]->(old:CanonEvent)-[:SELECTS]->(p:Proposition) RETURN old.id AS id, old.transition AS transition, old.temporal_quality AS temporal_quality, old.evidence_doc_id AS evidence_doc_id, old.occurred_at AS occurred_at, p.id AS proposition_id, p.value AS valueMATCH (p:Proposition {id: $proposition_id})<-[:ASSERTS]-(a:Assertion)-[:IN_ARTIFACT]->(d:Artifact) RETURN a.id AS id, a.doc_id AS doc_id, a.source_type AS source_type, a.evidence_span AS evidence_span, a.stance AS stance, a.extraction_method AS extraction_method, a.structured AS structured, a.discovery AS discovery, a.asserted_at AS asserted_at, a.source_field AS source_field, a.residue_class AS residue_class, a.proposition_id AS proposition_id, a.artifact_id AS artifact_id, d.title AS title ORDER BY a.doc_idMATCH (p:Proposition {id: $proposition_id})<-[:ASSERTS]-(a:Assertion)-[:IN_ARTIFACT]->(d:Artifact) RETURN a.id AS id, a.doc_id AS doc_id, a.source_type AS source_type, a.evidence_span AS evidence_span, a.stance AS stance, a.extraction_method AS extraction_method, a.structured AS structured, a.discovery AS discovery, a.asserted_at AS asserted_at, a.source_field AS source_field, a.residue_class AS residue_class, a.proposition_id AS proposition_id, a.artifact_id AS artifact_id, d.title AS title ORDER BY a.doc_idMATCH (p:Proposition {id: $proposition_id})<-[:ASSERTS]-(a:Assertion)-[:IN_ARTIFACT]->(d:Artifact) RETURN a.id AS id, a.doc_id AS doc_id, a.source_type AS source_type, a.evidence_span AS evidence_span, a.stance AS stance, a.extraction_method AS extraction_method, a.structured AS structured, a.discovery AS discovery, a.asserted_at AS asserted_at, a.source_field AS source_field, a.residue_class AS residue_class, a.proposition_id AS proposition_id, a.artifact_id AS artifact_id, d.title AS title ORDER BY a.doc_id