IBM MQ application crashed due to NFS locks_remove_flock errors

Issue

• IBM MQ crashed due to NFS warnings of locks_remove_flock

Feb 14 09:54:11 olbbscclprmqs01 kernel: ------------[ cut here ]------------
Feb 14 09:54:11 olbbscclprmqs01 kernel: WARNING: at fs/locks.c:2304 locks_remove_flock+0x1ba/0x1d0()
Feb 14 09:54:11 olbbscclprmqs01 kernel: leftover lock: dev=0:42 ino=4383200612 type=1 flags=0x1 start=0 end=9223372036854775807
Feb 14 09:54:11 olbbscclprmqs01 kernel: Modules linked in: dm_snapshot dm_bufio tcp_diag udp_diag inet_diag rpcsec_gss_krb5 nfsv4 dns_resolver nfs fscache vmw_vsock_vmci_transport vsock inte
Feb 14 09:54:11 olbbscclprmqs01 kernel: CPU: 0 PID: 12315 Comm: kworker/0:1 Not tainted 3.10.0-514.26.2.el7.x86_64 #1
Feb 14 09:54:11 olbbscclprmqs01 kernel: Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 09/17/2015
Feb 14 09:54:11 olbbscclprmqs01 kernel: Workqueue: events delayed_fput
Feb 14 09:54:11 olbbscclprmqs01 kernel: ffff88000649bc20 000000004dbb27db ffff88000649bbd8 ffffffff81687033
Feb 14 09:54:11 olbbscclprmqs01 kernel: ffff88000649bc10 ffffffff81085cb0 ffff8801b7505370 ffff88003685d400
Feb 14 09:54:11 olbbscclprmqs01 kernel: ffff8801b7505228 ffff8801b75052b0 ffff8800ba7bf620 ffff88000649bc78
Feb 14 09:54:11 olbbscclprmqs01 kernel: Call Trace:
Feb 14 09:54:11 olbbscclprmqs01 kernel: [<ffffffff81687033>] dump_stack+0x19/0x1b
Feb 14 09:54:11 olbbscclprmqs01 kernel: [<ffffffff81085cb0>] warn_slowpath_common+0x70/0xb0
Feb 14 09:54:11 olbbscclprmqs01 kernel: [<ffffffff81085d4c>] warn_slowpath_fmt+0x5c/0x80
Feb 14 09:54:11 olbbscclprmqs01 kernel: [<ffffffffa0574cb4>] ? nfs4_put_lock_state+0x74/0xb0 [nfsv4]
Feb 14 09:54:11 olbbscclprmqs01 kernel: [<ffffffff81255b6a>] locks_remove_flock+0x1ba/0x1d0
Feb 14 09:54:11 olbbscclprmqs01 kernel: [<ffffffff812007ad>] __fput+0xbd/0x260
Feb 14 09:54:11 olbbscclprmqs01 kernel: [<ffffffff812009ff>] delayed_fput+0xaf/0x130
Feb 14 09:54:11 olbbscclprmqs01 kernel: [<ffffffff810a845b>] process_one_work+0x17b/0x470
Feb 14 09:54:11 olbbscclprmqs01 kernel: [<ffffffff810a9296>] worker_thread+0x126/0x410
Feb 14 09:54:11 olbbscclprmqs01 kernel: [<ffffffff810a9170>] ? rescuer_thread+0x460/0x460
Feb 14 09:54:11 olbbscclprmqs01 kernel: [<ffffffff810b0a4f>] kthread+0xcf/0xe0
Feb 14 09:54:11 olbbscclprmqs01 kernel: [<ffffffff810b0980>] ? kthread_create_on_node+0x140/0x140
Feb 14 09:54:11 olbbscclprmqs01 kernel: [<ffffffff81697658>] ret_from_fork+0x58/0x90
Feb 14 09:54:11 olbbscclprmqs01 kernel: [<ffffffff810b0980>] ? kthread_create_on_node+0x140/0x140
Feb 14 09:54:11 olbbscclprmqs01 kernel: ---[ end trace ab56e92fd8189bdc ]---