sysctl_module_panic

# rmmod  sysctl.ko
# dmesg
------------[ cut here ]------------
WARNING: at kernel/sysctl.c:2270 unregister_sysctl_table+0xb1/0x120() (Tainted: P        W  ---------------- )
Hardware name: VMware Virtual Platform
Modules linked in: sysctl(-)(U) ip6table_filter ip6_tables ebtable_nat ebtables xt_CHECKSUM iptable_mangle ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack ipt_REJECT bridge autofs4 sunrpc fcoe libfcoe libfc scsi_transport_fc scsi_tgt 8021q garp stp llc cachefiles fscache ipv6 xt_physdev iptable_filter ip_tables dm_mirror dm_region_hash dm_log uinput ppdev parport_pc parport e1000 pcnet32 mii vmware_balloon sg i2c_piix4 i2c_core shpchp ext4 mbcache jbd2 vxspec(P)(U) vxio(P)(U) vxdmp(P)(U) sd_mod crc_t10dif sr_mod cdrom mptspi mptscsih mptbase scsi_transport_spi ata_generic pata_acpi ata_piix dm_mod [last unloaded: sysctl]
Pid: 22463, comm: rmmod Tainted: P        W  ----------------  2.6.32-71.el6.x86_64 #1
Call Trace:
 [<ffffffff8106b857>] warn_slowpath_common+0x87/0xc0
 [<ffffffff8106b8aa>] warn_slowpath_null+0x1a/0x20
 [<ffffffff81076251>] unregister_sysctl_table+0xb1/0x120
 [<ffffffff810c611c>] ? stop_machine_destroy+0x4c/0x50
 [<ffffffff810c621b>] ? stop_machine+0x4b/0x60
 [<ffffffffa002d021>] sysctl_module_exit+0x21/0x23 [sysctl]
 [<ffffffff810ac706>] sys_delete_module+0x1a6/0x280
 [<ffffffff8101ea88>] ? syscall_trace_enter+0x1d8/0x1e0
 [<ffffffff81013387>] tracesys+0xd9/0xde
---[ end trace fee2c1c8e41aeb36 ]---