System crashed at "kernel BUG at fs/inode.c:1481!" when called iput from `ofs_d_iput`.

Issue

• System crashed with the below error message.

...
[45753163.738137] ------------[ cut here ]------------
[45753163.738186] kernel BUG at fs/inode.c:1481!
[45753163.738209] invalid opcode: 0000 [#1] SMP 
[45753163.738232] Modules linked in: oracleacfs(POE) oracleadvm(POE) oracleoks(POE) vmw_vsock_vmci_transport vsock ppdev vmw_balloon iosf_mbi crc32_pclmul ghash_clmulni_intel aesni_intel lrw gf128mul glue_helper ablk_helper cryptd pcspkr joydev vmw_vmci sg vmw_pvscsi i2c_piix4 parport_pc parport nfsd auth_rpcgss nfs_acl lockd grace sunrpc binfmt_misc ip_tables xfs libcrc32c sr_mod sd_mod cdrom crc_t10dif crct10dif_generic ata_generic pata_acpi vmwgfx drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops ttm drm crct10dif_pclmul crct10dif_common ata_piix crc32c_intel libata nfit mptspi scsi_transport_spi serio_raw libnvdimm mptscsih mptbase vmxnet3 drm_panel_orientation_quirks dm_mirror dm_region_hash dm_log dm_mod
[45753163.738777] CPU: 1 PID: 45 Comm: kswapd0 Kdump: loaded Tainted: P           OE  ------------   3.10.0-957.27.2.el7.x86_64 #1
[45753163.738829] Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 04/05/2016
[45753163.738872] task: ffff8efb9b3db0c0 ti: ffff8efb9b3f0000 task.ti: ffff8efb9b3f0000
[45753163.738903] RIP: 0010:[<ffffffff81860882>]  [<ffffffff81860882>] iput+0x152/0x190
[45753163.738942] RSP: 0018:ffff8efb9b3f3b48  EFLAGS: 00010202
[45753163.738966] RAX: 0000000000000000 RBX: ffff8ef3dd23c848 RCX: 0000000000000000
[45753163.739021] RDX: ffff8ef3dd23c3d0 RSI: ffff8efb9b3f3b88 RDI: ffff8ef3dd23c848
[45753163.739079] RBP: ffff8efb9b3f3b68 R08: ffff8ef679568d50 R09: 0000000000000000
[45753163.739198] R10: 0000000000000000 R11: 0000000000000002 R12: ffff8ef3dd23c848
[45753163.739231] R13: ffff8ef679568d18 R14: ffff8efb9b3f3c28 R15: ffff8ef679569b00
[45753163.739263] FS:  0000000000000000(0000) GS:ffff8efb9d640000(0000) knlGS:0000000000000000
[45753163.739297] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[45753163.739322] CR2: 00007f11a9b78080 CR3: 00000002dce26000 CR4: 00000000007607e0
[45753163.739406] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[45753163.739447] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[45753163.739477] PKRU: 00000000
[45753163.739492] Call Trace:
[45753163.739548]  [<ffffffffc0c99cbd>] ofs_d_iput+0x8d/0xa0 [oracleacfs]
[45753163.741292]  [<ffffffff8185b195>] __dentry_kill+0x105/0x180
[45753163.742318]  [<ffffffff8185b51a>] shrink_dentry_list+0x12a/0x230
[45753163.743261]  [<ffffffff8185d308>] prune_dcache_sb+0x148/0x190
[45753163.744201]  [<ffffffff818453a8>] prune_super+0x168/0x190
[45753163.744864]  [<ffffffff817cb155>] shrink_slab+0x175/0x340
[45753163.745495]  [<ffffffff81838771>] ? vmpressure+0x61/0x90
[45753163.746237]  [<ffffffff817cef51>] balance_pgdat+0x4b1/0x5e0
[45753163.747153]  [<ffffffff817cf1f3>] kswapd+0x173/0x440
[45753163.748061]  [<ffffffff816c3f50>] ? wake_up_atomic_t+0x30/0x30
[45753163.748959]  [<ffffffff817cf080>] ? balance_pgdat+0x5e0/0x5e0
[45753163.749847]  [<ffffffff816c2e81>] kthread+0xd1/0xe0
[45753163.750737]  [<ffffffff816c2db0>] ? insert_kthread_work+0x40/0x40
[45753163.751621]  [<ffffffff81d76c37>] ret_from_fork_nospec_begin+0x21/0x21
[45753163.752482]  [<ffffffff816c2db0>] ? insert_kthread_work+0x40/0x40
[45753163.753352] Code: eb 9e 0f 1f 80 00 00 00 00 48 81 8b a0 00 00 00 00 01 00 00 48 89 df e8 1d fe ff ff 4c 89 e7 c6 07 00 0f 1f 40 00 e9 ed fe ff ff <0f> 0b be 9e 05 00 00 48 c7 c7 31 d5 08 82 e8 db 80 e3 ff e9 fb 
[45753163.754834] RIP  [<ffffffff81860882>] iput+0x152/0x190
[45753163.755456]  RSP <ffff8efb9b3f3b48>