)]}'
{
  "commit": "d7f04c486e494bf96166ff53b0957369e32509c6",
  "tree": "5f133f3a4b823bcbdbe66aa1265254bf8f7e316f",
  "parents": [
    "e35c99bc50ef74c02244d6e6d40868f9a49a59be"
  ],
  "author": {
    "name": "Steven Rostedt",
    "email": "srostedt@redhat.com",
    "time": "Thu Jul 07 11:09:22 2011 -0400"
  },
  "committer": {
    "name": "Greg Kroah-Hartman",
    "email": "gregkh@suse.de",
    "time": "Sun Oct 16 14:14:55 2011 -0700"
  },
  "message": "ftrace: Fix regression of :mod:module function enabling\n\ncommit 43dd61c9a09bd413e837df829e6bfb42159be52a upstream.\n\nThe new code that allows different utilities to pick and choose\nwhat functions they trace broke the :mod: hook that allows users\nto trace only functions of a particular module.\n\nThe reason is that the :mod: hook bypasses the hash that is setup\nto allow individual users to trace their own functions and uses\nthe global hash directly. But if the global hash has not been\nset up, it will cause a bug:\n\necho \u0027*:mod:radeon\u0027 \u003e /sys/kernel/debug/set_ftrace_filter\n\nproduces:\n\n [drm:drm_mode_getfb] *ERROR* invalid framebuffer id\n [drm:radeon_crtc_page_flip] *ERROR* failed to reserve new rbo buffer before flip\n BUG: unable to handle kernel paging request at ffffffff8160ec90\n IP: [\u003cffffffff810d9136\u003e] add_hash_entry+0x66/0xd0\n PGD 1a05067 PUD 1a09063 PMD 80000000016001e1\n Oops: 0003 [#1] SMP Jul  7 04:02:28 phyllis kernel: [55303.858604] CPU 1\n Modules linked in: cryptd aes_x86_64 aes_generic binfmt_misc rfcomm bnep ip6table_filter hid radeon r8169 ahci libahci mii ttm drm_kms_helper drm video i2c_algo_bit intel_agp intel_gtt\n\n Pid: 10344, comm: bash Tainted: G        WC  3.0.0-rc5 #1 Dell Inc. Inspiron N5010/0YXXJJ\n RIP: 0010:[\u003cffffffff810d9136\u003e]  [\u003cffffffff810d9136\u003e] add_hash_entry+0x66/0xd0\n RSP: 0018:ffff88003a96bda8  EFLAGS: 00010246\n RAX: ffff8801301735c0 RBX: ffffffff8160ec80 RCX: 0000000000306ee0\n RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff880137c92940\n RBP: ffff88003a96bdb8 R08: ffff880137c95680 R09: 0000000000000000\n R10: 0000000000000001 R11: 0000000000000000 R12: ffffffff81c9df78\n R13: ffff8801153d1000 R14: 0000000000000000 R15: 0000000000000000\n FS: 00007f329c18a700(0000) GS:ffff880137c80000(0000) knlGS:0000000000000000\n CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: ffffffff8160ec90 CR3: 000000003002b000 CR4: 00000000000006e0\n DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400\n Process bash (pid: 10344, threadinfo ffff88003a96a000, task ffff88012fcfc470)\n Stack:\n  0000000000000fd0 00000000000000fc ffff88003a96be38 ffffffff810d92f5\n  ffff88011c4c4e00 ffff880000000000 000000000b69f4d0 ffffffff8160ec80\n  ffff8800300e6f06 0000000081130295 0000000000000282 ffff8800300e6f00\n Call Trace:\n  [\u003cffffffff810d92f5\u003e] match_records+0x155/0x1b0\n  [\u003cffffffff810d940c\u003e] ftrace_mod_callback+0xbc/0x100\n  [\u003cffffffff810dafdf\u003e] ftrace_regex_write+0x16f/0x210\n  [\u003cffffffff810db09f\u003e] ftrace_filter_write+0xf/0x20\n  [\u003cffffffff81166e48\u003e] vfs_write+0xc8/0x190\n  [\u003cffffffff81167001\u003e] sys_write+0x51/0x90\n  [\u003cffffffff815c7e02\u003e] system_call_fastpath+0x16/0x1b\n Code: 48 8b 33 31 d2 48 85 f6 75 33 49 89 d4 4c 03 63 08 49 8b 14 24 48 85 d2 48 89 10 74 04 48 89 42 08 49 89 04 24 4c 89 60 08 31 d2\n RIP [\u003cffffffff810d9136\u003e] add_hash_entry+0x66/0xd0\n  RSP \u003cffff88003a96bda8\u003e\n CR2: ffffffff8160ec90\n ---[ end trace a5d031828efdd88e ]---\n\nReported-by: Brian Marete \u003cmarete@toshnix.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\n\n",
  "tree_diff": [
    {
      "type": "modify",
      "old_id": "9d88e1cb5dbbc557e14502005806002b7cdd8bc5",
      "old_mode": 33188,
      "old_path": "include/linux/ftrace.h",
      "new_id": "ed0eb5254d1cd5e06514cc51dd0e33a09b893952",
      "new_mode": 33188,
      "new_path": "include/linux/ftrace.h"
    },
    {
      "type": "modify",
      "old_id": "908038f57440e5eec44233351578105ff8c64e08",
      "old_mode": 33188,
      "old_path": "kernel/trace/ftrace.c",
      "new_id": "1c4c0b087e1dfefec1b20f51e9e0ae6201997247",
      "new_mode": 33188,
      "new_path": "kernel/trace/ftrace.c"
    },
    {
      "type": "modify",
      "old_id": "8d0e1cc4e9747281989e2b8f4f19f5fba5a8194c",
      "old_mode": 33188,
      "old_path": "kernel/trace/trace_functions.c",
      "new_id": "c7b0c6a7db0986b2a54e1b892367bc7be2ffb058",
      "new_mode": 33188,
      "new_path": "kernel/trace/trace_functions.c"
    }
  ]
}