{
  "schemaVersion": 1,
  "generatedAt": "2026-10-16T03:08:35.496038+00:00",
  "method": "Ordered nonblocking probes by fresh subprocesses while the parent holds flock",
  "environment": {
    "python": "3.12.3",
    "kernelRelease": "6.8.0-146-generic",
    "temporaryFilesystem": "ext2/ext3"
  },
  "sourceSha256": "146f9847f65ba6e290a1f86fa314efc6754f8c5c0a843d1dc4f3c032fef36e50",
  "rows": [
    {
      "case": "replaced-target",
      "holderIdentity": [
        2049,
        2145349
      ],
      "beforeReplacement": {
        "identity": [
          2049,
          2145349
        ],
        "acquired": false,
        "sameFileAsHolder": true
      },
      "whileHolderLocked": {
        "identity": [
          2049,
          2145350
        ],
        "acquired": true,
        "sameFileAsHolder": false
      },
      "originalFileWhileHeld": {
        "identity": [
          2049,
          2145349
        ],
        "acquired": false,
        "sameFileAsHolder": true
      },
      "afterRelease": {
        "identity": [
          2049,
          2145350
        ],
        "acquired": true,
        "sameFileAsHolder": false
      },
      "targetContent": "new"
    },
    {
      "case": "retained-sidecar",
      "holderIdentity": [
        2049,
        2145353
      ],
      "beforeReplacement": {
        "identity": [
          2049,
          2145353
        ],
        "acquired": false,
        "sameFileAsHolder": true
      },
      "whileHolderLocked": {
        "identity": [
          2049,
          2145353
        ],
        "acquired": false,
        "sameFileAsHolder": true
      },
      "originalFileWhileHeld": {
        "identity": [
          2049,
          2145353
        ],
        "acquired": false,
        "sameFileAsHolder": true
      },
      "afterRelease": {
        "identity": [
          2049,
          2145353
        ],
        "acquired": true,
        "sameFileAsHolder": true
      },
      "targetContent": "new"
    },
    {
      "case": "recreated-sidecar",
      "holderIdentity": [
        2049,
        2145356
      ],
      "beforeReplacement": {
        "identity": [
          2049,
          2145356
        ],
        "acquired": false,
        "sameFileAsHolder": true
      },
      "whileHolderLocked": {
        "identity": [
          2049,
          2145355
        ],
        "acquired": true,
        "sameFileAsHolder": false
      },
      "originalFileWhileHeld": {
        "identity": [
          2049,
          2145356
        ],
        "acquired": false,
        "sameFileAsHolder": true
      },
      "afterRelease": {
        "identity": [
          2049,
          2145355
        ],
        "acquired": true,
        "sameFileAsHolder": false
      },
      "targetContent": "new"
    }
  ],
  "limitations": [
    "One local-filesystem run, not a probability estimate or a crash test.",
    "No fsync, power loss, network filesystem or F_OFD_* operation was tested.",
    "The original file has a temporary hard-link alias for the held-lock control.",
    "A filesystem label is not a full mount configuration; inspect your own environment."
  ]
}