)]}'
{
  "commit": "ef80538ba1b9b6d49380eb0f7fbf0612db2f7f3b",
  "tree": "0b81a4f54ebb3c37a39c272b28ebdb069a203c5a",
  "parents": [
    "a4708521d495ae3c9086a38e6241aa984953f684"
  ],
  "author": {
    "name": "Barret Rhoden",
    "email": "brho@cs.berkeley.edu",
    "time": "Wed Oct 02 14:30:50 2019 -0400"
  },
  "committer": {
    "name": "Barret Rhoden",
    "email": "brho@cs.berkeley.edu",
    "time": "Tue Oct 08 17:11:11 2019 -0400"
  },
  "message": "arena: check for imports when destroying\n\nThis catches bugs where we tear down an arena while other arenas or\nslabs still depend on it.  It\u0027s the equivalent of a use-after-free.\n\nSigned-off-by: Barret Rhoden \u003cbrho@cs.berkeley.edu\u003e\n",
  "tree_diff": [
    {
      "type": "modify",
      "old_id": "6f6e400f4b074f66ee59ffb35bebb70369382556",
      "old_mode": 33188,
      "old_path": "kern/src/arena.c",
      "new_id": "c23ac41cb1d60a6b4420ee6424a7e9e534837a21",
      "new_mode": 33188,
      "new_path": "kern/src/arena.c"
    }
  ]
}