Just hit this.. WARNING: at lib/debugobjects.c:261 debug_print_object+0x8c/0xb0() ODEBUG: free active (active state 0) object type: work_struct hint: flush_to_ldisc+0x0/0x1a0 Modules linked in: fuse ipt_ULOG nfnetlink tun binfmt_misc nfc caif_socket caif phonet can llc2 pppoe pppox ppp_generic slhc irda crc_ccitt rds af_key decnet rose x25 atm netrom appletalk ipx p8023 psnap p8022 llc ax25 lockd sunrpc bluetooth rfkill ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 xt_state nf_conntrack ip6table_filter ip6_tables kvm_intel usb_debug kvm crc32c_intel ghash_clmulni_intel microcode pcspkr i2c_i801 e1000e uinput i915 video i2c_algo_bit drm_kms_helper drm i2c_core Pid: 23707, comm: kworker/3:0 Not tainted 3.6.0+ #26 Call Trace: [<ffffffff8107005f>] warn_slowpath_common+0x7f/0xc0 [<ffffffff81070156>] warn_slowpath_fmt+0x46/0x50 [<ffffffff813728fc>] debug_print_object+0x8c/0xb0 [<ffffffff8141c200>] ? tty_insert_flip_string_fixed_flag+0x100/0x100 [<ffffffff81373699>] debug_check_no_obj_freed+0x119/0x210 [<ffffffff814122c6>] ? free_tty_struct+0x46/0x50 [<ffffffff811cd166>] kfree+0xe6/0x340 [<ffffffff814122c6>] free_tty_struct+0x46/0x50 [<ffffffff81412377>] release_one_tty+0xa7/0xc0 [<ffffffff81094bc7>] process_one_work+0x207/0x770 [<ffffffff81094b57>] ? process_one_work+0x197/0x770 [<ffffffff814122d0>] ? free_tty_struct+0x50/0x50 [<ffffffff8109550e>] worker_thread+0x15e/0x440 [<ffffffff810953b0>] ? rescuer_thread+0x240/0x240 [<ffffffff8109c25d>] kthread+0xed/0x100 [<ffffffff816bdcd9>] ? sub_preempt_count+0x79/0xd0 [<ffffffff816c34a4>] kernel_thread_helper+0x4/0x10 [<ffffffff810aa29c>] ? finish_task_switch+0x7c/0x120 [<ffffffff816b92bb>] ? _raw_spin_unlock_irq+0x4b/0x80 [<ffffffff816b9d37>] ? retint_restore_args+0x13/0x13 [<ffffffff8109c170>] ? kthread_create_on_node+0x160/0x160 [<ffffffff816c34a0>] ? gs_change+0x13/0x13 ---[ end trace fbabf37a8756c1c9 ]---
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