blakinio · blakinio · Aug 16, 2026 · Aug 16, 2026 · Aug 16, 2026
@@ -0,0 +1,108 @@
+---
+task_id: OTC-20260816-track-a-canonical-xvfb-dri-path-fix
+status: completed
+agent: ChatGPT
+session_id: chatgpt-coord-canonical-xvfb-dri-fix-20260816-2219
+session_role: promotion_integration_coordinator
+project_lane: otclient
+lane: RUNTIME-INFRA
+track_id: official-client-re
+task_kind: implementation
+phase: archived
+base_branch: main
+risk: high
+updated: 2026-08-16T22:19:00+02:00
+implementation_authorized: true
+mutation_authorized: false
+owner_funded_ai_api_authorized: false
+execution_class: github_hosted
+runtime_access: none
+physical_e2e_required: false
+physical_e2e_reason: repository repair only; any official-client physical revalidation requires a separately admitted non-canonical RUNTIME task
+ownership_released: true
+owned_paths: []
+modules_touched:
+  - canonical Track A runtime session worker
+promoted_dependency:
+  task: OTC-20260816-track-a-xvfb-dri-path-default-glx
+  proof_pr: 427
+  archive_pr: 428
+  proof_merge: d9a91554dfa1da9232bbef89f818c71d6c2dca7d
+  archive_merge: acbc05866b6abec471425822a57c3bcf47c0edd5
+  classification: PROVEN_LIBGL_DRIVERS_PATH_ALONE_ENABLES_GLX_UNDER_CURRENT_CANONICAL_XVFB_ARGUMENTS
+source_implementation:
+  pr: 423
+  final_head: 1496fc83ee92326ebd2a1f9da06a926d50f7d040
+  disposition: CLOSED_SUPERSEDED
+  coordinator_decision: ACCEPT
+  material_findings_open: 0
+implementation:
+  contained_dri_root_helper: added
+  toolroot_requires_contained_dri_provider: true
+  swrast_must_resolve_below_dri_and_toolroot: true
+  resolved_provider_must_be_regular_file: true
+  bootstrap_derives_dri_from_selected_toolroot: true
+  xvfb_environment_LIBGL_DRIVERS_PATH: '$dri'
+  xvfb_argument_change: none
+  client_environment_change: none
+  explicit_glx_flag_added: false
+hosted_validation:
+  validator_run: 31966128631
+  validator_job: 95211462614
+  result: SUCCESS
+  shell_syntax: PASS
+  canonical_session_tests: 14_of_14_PASS
+  canonical_transition_tests: 9_of_9_PASS
+  canonical_guard_tests: 3_of_3_PASS
+  canonical_lease_tests: 14_of_14_PASS
+  minimal_xvfb_dri_source_contract: PASS
+  temporary_validator_removed: true
+promotion:
+  pr: 429
+  exact_head: 146ded11240281f2517572ea47b948bba8f193b3
+  merge_commit: feb5c087eba70bd649602737742e4f2fe3e72bc3
+  merge_method: squash
+  source_pr: 423
+  replay_method: exact audited source blobs onto current main without importing stale branch history
+final_validation:
+  track_a_governance_run: 31967657045
+  track_a_governance_result: SUCCESS
+  pre_ready_repository_ci_run: 31967657142
+  pre_ready_repository_ci_result: SUCCESS
+  pre_ready_required_ci_job: 95215375125
+  pre_ready_required_ci_result: SUCCESS
+  ready_repository_ci_run: 31967796354
+  ready_repository_ci_result: SUCCESS
+  ready_required_ci_job: 95215673425
+  ready_required_ci_result: SUCCESS
+  review_threads_open: 0
+  physical_e2e: NOT_APPLICABLE
+audit:
+  result: PASS
+  material_findings_open: 0
+  notes:
+    - current-main source/test blobs matched the source implementation merge-base blobs before replay
+    - fail-closed DRI/swrast containment was independently reviewed
+    - only Xvfb receives LIBGL_DRIVERS_PATH
+    - Xvfb arguments remain unchanged and no +extension GLX was introduced
+    - no official-client or canonical-runtime execution occurred during implementation or promotion
+runtime_nonclaims:
+  display_98_current_canonical_status: UNKNOWN
+  rfb_6082_current_backend_mapping: UNKNOWN
+  current_exact_client_pid: NOT_REGISTERED
+  current_exact_client_session: NOT_REGISTERED
+  canonical_registration: ABSENT
+  canonical_bootstrap_authorized: false
+closeout:
+  implementation_complete: true
+  vertical_slice_complete: true
+  promotion_merged: true
+  archive_complete: true
+  ownership_released: true
+last_completed_step: merged coordinator promotion PR #429 at feb5c087eba70bd649602737742e4f2fe3e72bc3 after final ready-state CI / Required succeeded on the unchanged exact head, then archived the task and released ownership
+next_action: none for this task; any further physical validation must be a separately admitted non-canonical RUNTIME task and must not retry canonical bootstrap from the blocked canonical-runtime checkpoint
+---
+
+# Track A canonical Xvfb DRI-path repair — archived
+
+The trusted-main worker now fail-closes on the contained DRI provider contract and supplies only the validated contained `LIBGL_DRIVERS_PATH` to Xvfb. This task does not establish a canonical runtime or a successful official-client window.