)]}'
{
  "commit": "b2e8d557cb45c9497db41e2c3ab2b365d2b7ab9f",
  "tree": "54130f0a6d6d09b81f056d91ac298901075687c8",
  "parents": [
    "5e392825edaaa3374b99ba6dd6e50aca10803b8e"
  ],
  "author": {
    "name": "Xiao Ma",
    "email": "xiaom@fuchsia.infra.roller.google.com",
    "time": "Wed Apr 08 02:13:28 2026 -0700"
  },
  "committer": {
    "name": "Copybara-Service",
    "email": "copybara-worker@google.com",
    "time": "Wed Apr 08 02:14:28 2026 -0700"
  },
  "message": "[roll] Roll fuchsia [lowpan] Explicitly drop `prefix_watch` when stopping PD client.\n\nDuring the teamfood stage of the Thread PD feature launch, a crash was\ndetected on the PD client side when the Wi-Fi interface toggled offline\nand back online.\n\nThe root cause is that we only dropped the `PrefixControl` endpoint when\nstopping the PD client, while the `PrefixControl.WatchPrefix` was still\nholding a future to monitor upcoming prefix events. Consequently,\ndropping `PrefixControl` alone did not trigger the\n`Dhcpv6PrefixControlRequest` closure event on the server side.\n\nWhen the PD client restarted and called `PrefixProvider.AcquirePrefix`\nto solicit a new prefix, the server-side internal state check failed.\nBecause currently only one active PD client at a time is supported, so\nit rejected the new request.\n\nThis CL fixes the issue by explicitly dropping the `prefix_watch` handle\nalongside `PrefixControl` when stopping the client. This ensures the\nserver\u0027s `on_dhcpv6_prefix_control_close` callback is triggered and the\nprevious FIDL channel is cleaned up before a new prefix is solicited.\n\nOriginal-Bug: 491112007\nTest: manual testing\nOriginal-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/1566993\nOriginal-Revision: 44ab367398eaf9e49da64b5aec7168c449cf54e4\nGitOrigin-RevId: 531d4a0c2d72d3c9d84ee2418f46886689313313\nChange-Id: I56bd4bd61930eab1f1939a42be7e7ad37bd3f3a0\n",
  "tree_diff": [
    {
      "type": "modify",
      "old_id": "87fe6b4e372887da858172764feef2159ba8880e",
      "old_mode": 33188,
      "old_path": "stem",
      "new_id": "cb780dfac57cc841dac5d7354c76474699ae1375",
      "new_mode": 33188,
      "new_path": "stem"
    }
  ]
}