)]}'
{
  "commit": "9f591fd76afdc0e5192e9ed00a36f8efc0b4dfe6",
  "tree": "6692dc95d4d799431a8b403a206660546f066a16",
  "parents": [
    "639fe4b12f92b54c9c3b38c82cdafaa38cfd3e63"
  ],
  "author": {
    "name": "Arnaldo Carvalho de Melo",
    "email": "acme@redhat.com",
    "time": "Thu Mar 11 15:53:11 2010 -0300"
  },
  "committer": {
    "name": "Ingo Molnar",
    "email": "mingo@elte.hu",
    "time": "Thu Mar 11 20:00:32 2010 +0100"
  },
  "message": "perf record: Don\u0027t try to find buildids in a zero sized file\n\nFixing this symptom:\n\n [acme@mica linux-2.6-tip]$ perf record -a -f\n   Fatal: Permission error - are you root?\n\n Bus error\n [acme@mica linux-2.6-tip]$\n\nI.e. if for some reason no data is collected, in this case a non\nroot user trying to do systemwide profiling, no data will be\ncollected, and then we end up trying to mmap a zero sized file\nand access the file header, b00m.\n\nReported-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Frédéric Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: \u003cstable@kernel.org\u003e\nLKML-Reference: \u003c1268333592-30872-1-git-send-email-acme@infradead.org\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n",
  "tree_diff": [
    {
      "type": "modify",
      "old_id": "b09d3b27ca14683a935d3227819477d227899bc0",
      "old_mode": 33188,
      "old_path": "tools/perf/builtin-record.c",
      "new_id": "3b8b6387c47ca4de49873990b2c47216c8309aaf",
      "new_mode": 33188,
      "new_path": "tools/perf/builtin-record.c"
    }
  ]
}