[10513.021934] WARNING: CPU: 0 PID: 14144 at fs/proc/generic.c:604 remove_proc_entry+0x18d/0x1a0
[10513.023913] name 'lustre-OST0000-osc-ffff880079ca2000'
[10513.025621] Modules linked in: lustre(OE) obdecho(OE) mgc(OE) lov(OE) mdc(OE) osc(OE) lmv(OE) fid(OE) fld(OE) ptlrpc_gss(OE) ptlrpc(OE) obdclass(OE) ksocklnd(OE) lnet(OE) libcfs(OE) rpcsec_gss_krb5 nfsv4 dns_resolver nfs fscache rpcrdma ib_isert iscsi_target_mod ib_iser libiscsi scsi_transport_iscsi ib_srpt target_core_mod crc_t10dif crct10dif_generic ib_srp scsi_transport_srp scsi_tgt ib_ipoib rdma_ucm ib_ucm ib_uverbs ib_umad rdma_cm ib_cm iw_cm ib_core iosf_mbi crc32_pclmul ghash_clmulni_intel ppdev aesni_intel lrw gf128mul glue_helper ablk_helper cryptd pcspkr joydev virtio_balloon i2c_piix4 parport_pc parport nfsd auth_rpcgss nfs_acl lockd grace sunrpc ip_tables ext4 mbcache jbd2 ata_generic pata_acpi cirrus drm_kms_helper virtio_blk ata_piix syscopyarea sysfillrect sysimgblt fb_sys_fops ttm 8139too crct10dif_pclmul crct10dif_common libata crc32c_intel serio_raw drm virtio_pci virtio_ring virtio 8139cp mii i2c_core floppy [last unloaded: libcfs]
[10513.044414] CPU: 0 PID: 14144 Comm: umount Tainted: G W OE ------------ 3.10.0-693.11.1.el7.x86_64 #1
[10513.046650] Hardware name: Red Hat KVM, BIOS 0.5.1 01/01/2007
[10513.048634] ffff88007bb93ba0 00000000c9c6fb71 ffff88007bb93b50 ffffffff816a3e61
[10513.050749] ffff88007bb93b90 ffffffff810879d8 0000025c00020000 ffff880068846280
[10513.053067] 0000000000000000 ffff88007b6d2240 ffff88007ac87b40 ffff880068846240
[10513.055201] Call Trace:
[10513.057006] [<ffffffff816a3e61>] dump_stack+0x19/0x1b
[10513.059027] [<ffffffff810879d8>] __warn+0xd8/0x100
[10513.060895] [<ffffffff81087a5f>] warn_slowpath_fmt+0x5f/0x80
[10513.062894] [<ffffffff81276bed>] remove_proc_entry+0x18d/0x1a0
[10513.064856] [<ffffffffc07fe803>] lprocfs_remove_proc_entry+0x13/0x50 [obdclass]
[10513.067077] [<ffffffffc0c2e9f5>] lov_putref+0x5a5/0xaa0 [lov]
[10513.069068] [<ffffffffc0c35f62>] lov_disconnect+0x172/0x420 [lov]
[10513.071145] [<ffffffffc0c98cfb>] obd_disconnect+0xcb/0x340 [lustre]
[10513.073103] [<ffffffffc0c9c13f>] ll_put_super+0x51f/0x840 [lustre]
[10513.075138] [<ffffffff81246b2e>] ? fsnotify_destroy_marks+0x6e/0x90
[10513.077076] [<ffffffff8113915d>] ? call_rcu_sched+0x1d/0x20
[10513.079011] [<ffffffffc0cc48cc>] ? ll_destroy_inode+0x1c/0x20 [lustre]
[10513.080959] [<ffffffff8121d4d8>] ? destroy_inode+0x38/0x60
[10513.082749] [<ffffffff8121d60a>] ? evict+0x10a/0x180
[10513.084542] [<ffffffff8121d6be>] ? dispose_list+0x3e/0x50
[10513.086284] [<ffffffff8121e376>] ? evict_inodes+0xd6/0x140
[10513.088058] [<ffffffff81203512>] generic_shutdown_super+0x72/0x100
[10513.089810] [<ffffffff812038e2>] kill_anon_super+0x12/0x20
[10513.091603] [<ffffffffc0817d95>] lustre_kill_super+0x45/0x50 [obdclass]
[10513.093401] [<ffffffff81203c99>] deactivate_locked_super+0x49/0x60
[10513.095243] [<ffffffff81204406>] deactivate_super+0x46/0x60
[10513.096943] [<ffffffff8122163f>] cleanup_mnt+0x3f/0x80
[10513.098707] [<ffffffff812216d2>] __cleanup_mnt+0x12/0x20
[10513.100466] [<ffffffff810ad275>] task_work_run+0xc5/0xf0
[10513.102286] [<ffffffff8102ab62>] do_notify_resume+0x92/0xb0
[10513.104046] [<ffffffff816b533d>] int_signal+0x12/0x17