RHEL 8: WARNING at mm/vmstat.c:1057 __fragmentation_index+0x45

Issue

• WARNING with below logs.
  ~~`
  [ 2140.668194] WARNING: CPU: 75 PID: 64130 at mm/vmstat.c:1057 __fragmentation_index+0x45/0x50
  [ 2140.676790] Modules linked in: dummy nbd rbd libceph dns_resolver ipt_MASQUERADE xt_comment nft_counter xt_mark nft_compat nft_chain_nat nf_nat nf_tables nfnetlink ip_vs_wrr ip_vs_sh ip_vs_rr ip_vs nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 libcrc32c mpt3sas raid_class scsi_transport_sas dell_rbu overlay br_netfilter bridge stp llc dell_smbios dell_wmi_descriptor wmi_bmof dcdbas kvm irqbypass pcspkr ipmi_ssif drm_vram_helper drm_ttm_helper i2c_algo_bit ttm drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops drm ipmi_si sp5100_tco ipmi_devintf k10temp i2c_piix4 wmi ipmi_msghandler acpi_power_meter ip_tables ext4 mbcache jbd2 loop squashfs sd_mod sg mlx5_core crct10dif_pclmul mlxfw crc32_pclmul ahci crc32c_intel tls(t) libahci ghash_clmulni_intel tg3 pci_hyperv_intf libata megaraid_sas ccp sunrpc dm_mirror dm_region_hash dm_log dm_mod [last unloaded: edac_mce_amd]
  [ 2140.788945] Features: eBPF/event eBPF/rawtrace
  [ 2140.801818] CPU: 75 PID: 64130 Comm: kube-proxy Tainted: G --------- -t - 4.18.0-240.10.1.el8_3.x86_64 #1
  [ 2140.830374] Hardware name: Dell Inc. PowerEdge C6525/04DK47, BIOS 2.1.5 03/05/2021
  [ 2140.847299] RIP: 0010:__fragmentation_index+0x45/0x50
  [ 2140.861010] Code: 23 48 69 06 e8 03 00 00 89 f9 48 d3 e8 89 d1 31 d2 48 05 e8 03 00 00 48 f7 f1 ba e8 03 00 00 29 c2 89 d0 c3 b8 18 fc ff ff c3 0b 31 c0 c3 66 0f 1f 44 00 00 0f 1f 44 00 00 c3 66 2e 0f 1f 84
  [ 2140.898364] RSP: 0018:ffffb3d59c387ae0 EFLAGS: 00010202
  [ 2140.912966] RAX: 000000000000000b RBX: 0000000001e20400 RCX: 000000000000000a
  [ 2140.929310] RDX: 0000000000007881 RSI: ffffb3d59c387ae8 RDI: 000000000000000b
  [ 2140.945553] RBP: ffff98c73fed6000 R08: 0000000001e2511c R09: 00000000000083ab
  [ 2140.961908] R10: 000000000000000b R11: 0000000000000000 R12: ffff98c73fed6b80
  [ 2140.977664] R13: 000000000000000b R14: 0000000000000000 R15: ffffb3d59c387bc0
  [ 2140.993324] FS: 000000c000280090(0000) GS:ffff98c6bfac0000(0000) knlGS:0000000000000000
  [ 2141.010145] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  [ 2141.024298] CR2: 000000c000b08008 CR3: 0000009bfc61e000 CR4: 0000000000140ee0
  [ 2141.039717] Call Trace:
  [ 2141.050565] fragmentation_index+0x89/0xb0
  [ 2141.063401] compaction_suitable+0xa4/0xe0
  [ 2141.075947] shrink_node+0x2b5/0x3c0
  [ 2141.087890] __node_reclaim+0x162/0x190
  [ 2141.099927] node_reclaim+0x60/0xb0
  [ 2141.111586] get_page_from_freelist+0x2be/0x1210
  [ 2141.124379] ? account_entity_enqueue+0x9c/0xd0
  [ 2141.136958] ? enqueue_task_fair+0x8e/0x620
  [ 2141.149041] __alloc_pages_nodemask+0xef/0x280
  [ 2141.161523] __get_free_pages+0xa/0x30
  [ 2141.173481] nf_ct_alloc_hashtable+0x59/0xa0 [nf_conntrack]
  [ 2141.187171] nf_conntrack_hash_resize+0x2e/0x200 [nf_conntrack]
  [ 2141.201191] nf_conntrack_set_hashsize+0x6b/0x80 [nf_conntrack]
  [ 2141.215031] param_attr_store+0x97/0xf0
  [ 2141.226854] module_attr_store+0x1c/0x30
  [ 2141.238536] kernfs_fop_write+0x116/0x190
  [ 2141.251136] vfs_write+0xa5/0x1a0
  [ 2141.262237] ksys_write+0x4f/0xb0
  [ 2141.273619] do_syscall_64+0x5b/0x1a0
  [ 2141.285094] entry_SYSCALL_64_after_hwframe+0x65/0xca
  [ 2141.298138] RIP: 0033:0x4bf35b
  [ 2141.309186] Code: fb ff eb bd e8 26 e6 fa ff e9 61 ff ff ff cc e8 9b b3 fa ff 48 8b 7c 24 10 48 8b 74 24 18 48 8b 54 24 20 48 8b 44 24 08 0f 05 3d 01 f0 ff ff 76 20 48 c7 44 24 28 ff ff ff ff 48 c7 44 24 30
  [ 2141.344787] RSP: 002b:000000c000561a08 EFLAGS: 00000216 ORIG_RAX: 0000000000000001
  [ 2141.360457] RAX: ffffffffffffffda RBX: 000000c000054000 RCX: 00000000004bf35b
  [ 2141.375614] RDX: 0000000000000007 RSI: 000000c000561c98 RDI: 000000000000000f
  [ 2141.390389] RBP: 000000c000561a58 R08: 000000c000561b01 R09: 0000000000000004
  [ 2141.405100] R10: 00007fffd1079228 R11: 0000000000000216 R12: 00000000000000f2
  [ 2141.419502] R13: 0000000000000000 R14: 0000000001a614e8 R15: 0000000000000000
  [ 2141.433543] ---[ end trace 6e0c5947e23a346d ]---
  ~~~