WARNING: CPU: 2 PID: 97341 at fs/proc/generic.c:399 proc_register+0x8e/0xb0
proc_dir_entry '/proc/xen_hcall' already registered
Modules linked in: xen_hcall(OE+) tcp_lp nls_utf8 isofs xt_CHECKSUM ipt_MASQUERADE nf_nat_masquerade_ipv4 tun devlink ip6t_rpfilter ip6t_REJECT nf_reject_ipv6 ipt_REJECT nf_reject_ipv4 xt_conntrack ebtable_nat ebtable_broute bridge stp llc ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat iptable_mangle iptable_security iptable_raw nf_conntrack ip_set nfnetlink ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter sunrpc joydev ppdev sg parport_pc parport sb_edac intel_rapl iosf_mbi crc32_pclmul ghash_clmulni_intel aesni_intel lrw i2c_piix4 gf128mul glue_helper pcspkr ablk_helper cryptd ip_tables xfs libcrc32c sr_mod cdrom ata_generic pata_acpi cirrus drm_kms_helper
syscopyarea sysfillrect sysimgblt fb_sys_fops ttm xen_netfront xen_blkfront drm ata_piix crct10dif_pclmul crct10dif_common crc32c_intel libata serio_raw drm_panel_orientation_quirks floppy dm_mirror dm_region_hash dm_log dm_mod fuse
CPU: 2 PID: 97341 Comm: modprobe Kdump: loaded Tainted: G           OE  ------------   3.10.0-1160.el7.x86_64 #1
Hardware name: Xen HVM domU, BIOS 4.1.2_115-908.790. 12/28/2016
Call Trace:
[<ffffffffa0781340>] dump_stack+0x19/0x1b
[<ffffffffa009b228>] __warn+0xd8/0x100
[<ffffffffa009b2af>] warn_slowpath_fmt+0x5f/0x80
[<ffffffffa02ccfb8>] ? pde_subdir_insert+0x58/0xb0
[<ffffffffa02cd1de>] proc_register+0x8e/0xb0
[<ffffffffa02cd41a>] proc_create_data+0x7a/0xd0
[<ffffffffc06010f0>] ? hcall_read+0xf0/0xf0 [xen_hcall]
[<ffffffffc0601119>] hcall_procfs_init+0x29/0x210 [xen_hcall]
[<ffffffffa000210a>] do_one_initcall+0xba/0x240
[<ffffffffa011e45a>] load_module+0x271a/0x2bb0
[<ffffffffa03b4290>] ? ddebug_proc_write+0x100/0x100
[<ffffffffa0119fe3>] ? copy_module_from_fd.isra.44+0x53/0x150
[<ffffffffa011ead6>] SyS_finit_module+0xa6/0xd0
[<ffffffffa0793f92>] system_call_fastpath+0x25/0x2a

WARNING: CPU: 2 PID: 1039 at fs/proc/generic.c:162 __xlate_proc_name+0xad/0xd0
name 'xen/version'
Modules linked in: xen_hcall(OE+) ip6t_rpfilter ip6t_REJECT nf_reject_ipv6 ipt_REJECT nf_reject_ipv4 xt_conntrack ebtable_nat ebtable_broute bridge stp llc ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat iptable_mangle iptable_security iptable_raw nf_conntrack ip_set nfnetlink ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter nfit libnvdimm iosf_mbi crc32_pclmul ppdev ghash_clmulni_intel vmw_balloon aesni_intel lrw gf128mul glue_helper ablk_helper cryptd joydev pcspkr sg parport_pc parport i2c_piix4 vmw_vmci 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 mptspi scsi_transport_spi ata_piix crc32c_intel mptscsih serio_raw libata mptbase e1000 drm_panel_orientation_quirks dm_mirror dm_region_hash dm_log dm_mod
CPU: 2 PID: 1039 Comm: modprobe Tainted: G           OE  ------------   3.10.0-1127.el7.x86_64 #1
Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 09/21/2015
Call Trace:
[<ffffffffa0d7ff85>] dump_stack+0x19/0x1b
[<ffffffffa069bd18>] __warn+0xd8/0x100
[<ffffffffa069bd9f>] warn_slowpath_fmt+0x5f/0x80
[<ffffffffa08cc1d7>] ? pde_subdir_find+0x57/0x90
[<ffffffffa08cc2bd>] __xlate_proc_name+0xad/0xd0
[<ffffffffa08cc342>] __proc_create+0x62/0x170
[<ffffffffa08cc8e6>] proc_create_data+0x56/0xd0
[<ffffffffc06130f0>] ? hcall_read+0xf0/0xf0 [xen_hcall]
[<ffffffffc0613158>] hcall_procfs_init+0x68/0xb0 [xen_hcall]
[<ffffffffa060210a>] do_one_initcall+0xba/0x240
[<ffffffffa071ee4a>] load_module+0x271a/0x2bb0
[<ffffffffa09b3340>] ? ddebug_proc_write+0x100/0x100
[<ffffffffa071a9e3>] ? copy_module_from_fd.isra.44+0x53/0x150
[<ffffffffa071f4c6>] SyS_finit_module+0xa6/0xd0
[<ffffffffa0d92ed2>] system_call_fastpath+0x25/0x2a