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'ip_set' モジュールの ip_set_net_init() 関数で 'page allocation failure: order:7' が報告されるのはなぜですか?

Solution In Progress - Updated -

Issue

  • ip_set_net_init() 関数を通じて、複数のページ割り当てエラーメッセージが報告されました。
  • page allocation failure: order:7
    • このオーダーは最終的に 4 から 7 までの間で変化する可能性があります。
[45633.382912] falcon-task: page allocation failure: order:7, mode:0xc0d0
[45633.383082] CPU: 17 PID: 23981 Comm: falcon-task Kdump: loaded Tainted: P           OE  ------------   3.10.0-1160.88.1.el7.x86_64 #1
[45633.383398] Hardware name: HP ProLiant DL380 Gen9/ProLiant DL380 Gen9, BIOS P89 05/17/2022
[45633.383710] Call Trace:
[45633.383887]  [<ffffffff9d9b1bec>] dump_stack+0x19/0x1f
[45633.384054]  [<ffffffff9d3cfa70>] warn_alloc_failed+0x110/0x180
[45633.384222]  [<ffffffff9d3d474f>] __alloc_pages_nodemask+0x9ef/0xbf0
[45633.384387]  [<ffffffff9d4259d8>] alloc_pages_current+0x98/0x110
[45633.384550]  [<ffffffff9d3f17a8>] kmalloc_order+0x18/0x50
[45633.384714]  [<ffffffff9d431776>] kmalloc_order_trace+0x26/0xa0
[45633.384887]  [<ffffffff9d435801>] __kmalloc+0x221/0x240
[45633.385060]  [<ffffffffc35e0f68>] ip_set_net_init+0x58/0xb0 [ip_set]
[45633.385234]  [<ffffffff9d873a64>] ops_init+0x44/0x160
[45633.385398]  [<ffffffff9d873c3b>] setup_net+0xbb/0x170
[45633.385560]  [<ffffffff9d87440d>] copy_net_ns+0xbd/0x180
[45633.385723]  [<ffffffff9d2d0a09>] create_new_namespaces+0xf9/0x180
[45633.385895]  [<ffffffff9d2d0c5a>] unshare_nsproxy_namespaces+0x5a/0xc0
[45633.386066]  [<ffffffff9d29eccb>] SyS_unshare+0x1db/0x350
[45633.386230]  [<ffffffff9d9c539a>] system_call_fastpath+0x25/0x2a

Environment

  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8.0
  • IP セット機能の使用 (ip_set モジュールのロード) - たとえばファイアウォールのルール内から

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