RHEL6: `WARNING: at fs/notify/inotify/inotify_fsnotify.c:133 idr_callback+0x51/0x80()` is output

Issue

The following messages are output.

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WARNING: at fs/notify/inotify/inotify_fsnotify.c:133 idr_callback+0x51/0x80() (Not tainted)
Hardware name: VMware Virtual Platform
inotify closing but id=0 for entry=ffff8803a8fa2c68 in group=ffff8804378beb80 still in idr.  Probably leaking memory
Modules linked in: nfsd exportfs talpa_vfshook(U) talpa_pedconnector(U) talpa_vcdevice(U) talpa_core(U) talpa_linux(U) talpa_syscallhook(U) nfs lockd fscache auth_rpcgss nfs_acl sunrpc talpa_pedevice(U) ipv6 vsock(U) microcode ppdev vmware_balloon parport_pc parport sg i2c_piix4 i2c_core vmci(U) shpchp ext4 jbd2 mbcache sd_mod crc_t10dif sr_mod cdrom vmxnet3 vmw_pvscsi pata_acpi ata_generic ata_piix dm_mirror dm_region_hash dm_log dm_mod [last unloaded: talpa_syscallhook]
Pid: 7573, comm: uma Not tainted 2.6.32-504.3.3.el6.x86_64 #1
Call Trace:
[<ffffffff81074df7>] ? warn_slowpath_common+0x87/0xc0
[<ffffffff81074ee6>] ? warn_slowpath_fmt+0x46/0x50
[<ffffffff811d47a1>] ? idr_callback+0x51/0x80
[<ffffffff8128c6f9>] ? idr_for_each+0x89/0xf0
[<ffffffff811d4750>] ? idr_callback+0x0/0x80
[<ffffffff8152ae1e>] ? mutex_lock+0x1e/0x50
[<ffffffff811d4712>] ? inotify_free_group_priv+0x32/0x70
[<ffffffff811d2378>] ? fsnotify_final_destroy_group+0x28/0x40
[<ffffffff811d2490>] ? fsnotify_put_group+0xa0/0xb0
[<ffffffff811d5165>] ? inotify_release+0x25/0x30
[<ffffffff8118f8d5>] ? __fput+0xf5/0x210
[<ffffffff8118fa15>] ? fput+0x25/0x30
[<ffffffff8118ac6d>] ? filp_close+0x5d/0x90
[<ffffffff8118ad45>] ? sys_close+0xa5/0x100
[<ffffffff81053d30>] ? sysenter_dispatch+0x7/0x2e
---[ end trace 4daec1bb55152607 ]---