GFS2 flock panic issue

Issue

A kernel panic occurs on a gfs2 filesystem:

[1114188.435357] kernel BUG at fs/locks.c:1885!
[1114188.435824] invalid opcode: 0000 [#1] SMP
[1114188.436281] Modules linked in: nfsv3 rpcsec_gss_krb5 nfsv4 dns_resolver nfs fscache xt_REDIRECT nf_nat_redirect gfs2 dlm ip_vs_rr xt_ipvs ip_vs xt_nat veth vxlan ip6_udp_tunnel udp_tunnel iptable_mangle xt_mark ipt_MASQUERADE nf_nat_masquerade_ipv4 nf_conntrack_netlink nfnetlink iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 xt_addrtype iptable_filter xt_conntrack nf_nat nf_conntrack br_netfilter bridge stp llc binfmt_misc vmw_vsock_vmci_transport vsock dm_thin_pool dm_persistent_data dm_bio_prison dm_bufio sb_edac edac_core iosf_mbi crc32_pclmul ghash_clmulni_intel aesni_intel lrw gf128mul glue_helper ablk_helper cryptd ppdev vmw_balloon pcspkr vmw_vmci joydev i2c_piix4 sg shpchp parport_pc parport nfsd auth_rpcgss nfs_acl lockd grace sunrpc ip_tables xfs libcrc32c ata_generic pata_acpi
[1114188.439148]  vmwgfx drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops ttm ata_piix drm sd_mod crc_t10dif libata crct10dif_generic crct10dif_pclmul crct10dif_common i2c_core crc32c_intel serio_raw vmxnet3 vmw_pvscsi dm_mirror dm_region_hash dm_log dm_mod
[1114188.440492] CPU: 7 PID: 46432 Comm: httpd Not tainted 3.10.0-693.5.2.el7.x86_64 #1
[1114188.441167] Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 09/21/2015
[1114188.441875] task: ffff88017a252f70 ti: ffff88021f330000 task.ti: ffff88021f330000
[1114188.442588] RIP: 0010:[<ffffffff812587a8>]  [<ffffffff812587a8>] locks_lock_inode_wait+0x28/0x40
[1114188.443380] RSP: 0018:ffff88021f333de0  EFLAGS: 00010293
[1114188.444110] RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000
[1114188.444834] RDX: 0000000000000000 RSI: ffff88021f333e08 RDI: ffff880270b19740
[1114188.445668] RBP: ffff88021f333de0 R08: 0000000000019c20 R09: 0000000000000000
[1114188.446421] R10: ffff8800a76518c0 R11: 0000000000000297 R12: 0000000000000080
[1114188.447173] R13: ffff88037abea9c0 R14: ffff88037abea9e8 R15: ffff8800b9daa100
[1114188.447925] FS:  00007f33cb161880(0000) GS:ffff88042d7c0000(0000) knlGS:0000000000000000
[1114188.448712] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[1114188.449481] CR2: 00007ffc6c0b4240 CR3: 00000003f4ff3000 CR4: 00000000001407e0
[1114188.450213] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[1114188.451025] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[1114188.451801] Stack:
[1114188.452557]  ffff88021f333ef8 ffffffffc0608642 ffff880270b19740 ffff8800a76518c0
[1114188.453343]  ffff8803f17c7100 0000000000000000 0000000000000000 0000000000000000
[1114188.454129]  0000000000000000 0000000000000000 0000000000000000 0000000200000000
[1114188.454915] Call Trace:
[1114188.455732]  [<ffffffffc0608642>] do_flock+0xc2/0x260 [gfs2]
[1114188.456565]  [<ffffffffc0608814>] gfs2_flock+0x34/0xc0 [gfs2]
[1114188.457355]  [<ffffffff8125962e>] SyS_flock+0x15e/0x1f0
[1114188.458161]  [<ffffffff816b5292>] tracesys+0xdd/0xe2
[1114188.458949] Code: 00 00 00 0f 1f 44 00 00 55 8b 46 30 48 89 e5 83 e0 03 83 f8 01 74 1c 83 f8 02 75 0f e8 12 f3 ff ff 5d 90 c3 0f 1f 80 00 00 00 00 <0f> 0b 66 0f 1f 44 00 00 e8 5b fb ff ff 5d c3 66 0f 1f 84 00 00
[1114188.460685] RIP  [<ffffffff812587a8>] locks_lock_inode_wait+0x28/0x40
[1114188.461533]  RSP <ffff88021f333de0>