)]}'
{
  "commit": "cd4f2b30e5ef7d4bde61eb515372d96e8aec1690",
  "tree": "9a8de5094c61cc719fa644e927af8992c81fb6cc",
  "parents": [
    "0d923820c6db1644c27c2d0a5af8920fc0f8cd81"
  ],
  "author": {
    "name": "Anju T Sudhakar",
    "email": "anju@linux.vnet.ibm.com",
    "time": "Wed Oct 11 18:27:39 2017 +0530"
  },
  "committer": {
    "name": "Michael Ellerman",
    "email": "mpe@ellerman.id.au",
    "time": "Thu Oct 12 23:12:12 2017 +1100"
  },
  "message": "powerpc/perf: Add ___GFP_NOWARN flag to alloc_pages_node()\n\nStack trace output during a stress test:\n [    4.310049] Freeing initrd memory: 22592K\n[    4.310646] rtas_flash: no firmware flash support\n[    4.313341] cpuhp/64: page allocation failure: order:0, mode:0x14480c0(GFP_KERNEL|__GFP_ZERO|__GFP_THISNODE), nodemask\u003d(null)\n[    4.313465] cpuhp/64 cpuset\u003d/ mems_allowed\u003d0\n[    4.313521] CPU: 64 PID: 392 Comm: cpuhp/64 Not tainted 4.11.0-39.el7a.ppc64le #1\n[    4.313588] Call Trace:\n[    4.313622] [c000000f1fb1b8e0] [c000000000c09388] dump_stack+0xb0/0xf0 (unreliable)\n[    4.313694] [c000000f1fb1b920] [c00000000030ef6c] warn_alloc+0x12c/0x1c0\n[    4.313753] [c000000f1fb1b9c0] [c00000000030ff68] __alloc_pages_nodemask+0xea8/0x1000\n[    4.313823] [c000000f1fb1bbb0] [c000000000113a8c] core_imc_mem_init+0xbc/0x1c0\n[    4.313892] [c000000f1fb1bc00] [c000000000113cdc] ppc_core_imc_cpu_online+0x14c/0x170\n[    4.313962] [c000000f1fb1bc90] [c000000000125758] cpuhp_invoke_callback+0x198/0x5d0\n[    4.314031] [c000000f1fb1bd00] [c00000000012782c] cpuhp_thread_fun+0x8c/0x3d0\n[    4.314101] [c000000f1fb1bd60] [c0000000001678d0] smpboot_thread_fn+0x290/0x2a0\n[    4.314169] [c000000f1fb1bdc0] [c00000000015ee78] kthread+0x168/0x1b0\n[    4.314229] [c000000f1fb1be30] [c00000000000b368] ret_from_kernel_thread+0x5c/0x74\n[    4.314313] Mem-Info:\n[    4.314356] active_anon:0 inactive_anon:0 isolated_anon:0\n\ncore_imc_mem_init() at system boot use alloc_pages_node() to get memory\nand alloc_pages_node() throws this stack dump when tried to allocate\nmemory from a node which has no memory behind it. Add a ___GFP_NOWARN\nflag in allocation request as a fix.\n\nSigned-off-by: Anju T Sudhakar \u003canju@linux.vnet.ibm.com\u003e\nReported-by: Michael Ellerman \u003cmpe@ellerman.id.au\u003e\nReported-by: Venkat R.B \u003cvenkatb3@in.ibm.com\u003e\nSigned-off-by: Michael Ellerman \u003cmpe@ellerman.id.au\u003e\n",
  "tree_diff": [
    {
      "type": "modify",
      "old_id": "e3a1f65933b579f424d8f260b77a8a79adda7afe",
      "old_mode": 33188,
      "old_path": "arch/powerpc/perf/imc-pmu.c",
      "new_id": "39a0203fd8a5e168b8810bd33ccd35f9b974dd84",
      "new_mode": 33188,
      "new_path": "arch/powerpc/perf/imc-pmu.c"
    }
  ]
}