Hi all,
While fuzzing with trinity inside a KVM tools guest, running latest -next
kernel, I've
stumbled on the following:
[ 418.311956] ------------[ cut here ]------------
[ 418.312449] WARNING: CPU: 6 PID: 4178 at lib/debugobjects.c:260
debug_print_object+0x8d/0xb0()
[ 418.313243] ODEBUG: free active (active state 0) object type: timer_list hint:
delayed_work_timer_fn+0x0/0x20
[ 418.314038] Modules linked in:
[ 418.314038] CPU: 6 PID: 4178 Comm: kworker/u16:2 Tainted: G W
3.11.0-next-20130906-sasha #3984
[ 418.314038] Workqueue: netns cleanup_net
[ 418.314038] 0000000000000104 ffff880410371a58 ffffffff841b7815
0000000000000104
[ 418.314038] ffff880410371aa8 ffff880410371a98 ffffffff8112540c
ffff880410371a78
[ 418.314038] ffffffff853ea0ab ffff8800bdc68b80 ffffffff85a65c00
ffffffff87676658
[ 418.314038] Call Trace:
[ 418.314038] [<ffffffff841b7815>] dump_stack+0x52/0x87
[ 418.320315] [<ffffffff8112540c>] warn_slowpath_common+0x8c/0xc0
[ 418.321040] [<ffffffff811254f6>] warn_slowpath_fmt+0x46/0x50
[ 418.321101] [<ffffffff81a60ded>] debug_print_object+0x8d/0xb0
[ 418.321101] [<ffffffff811444e0>] ? __queue_work+0x390/0x390
[ 418.321101] [<ffffffff81a61605>] __debug_check_no_obj_freed+0xa5/0x220
[ 418.321101] [<ffffffff81249e76>] ? kmem_cache_destroy+0x86/0xe0
[ 418.321101] [<ffffffff81a61795>] debug_check_no_obj_freed+0x15/0x20
[ 418.321101] [<ffffffff812874d7>] kmem_cache_free+0x197/0x340
[ 418.321101] [<ffffffff81249e76>] kmem_cache_destroy+0x86/0xe0
[ 418.321101] [<ffffffff83d5d681>] nf_conntrack_cleanup_net_list+0x131/0x170
[ 418.321101] [<ffffffff83d5ec5d>] nf_conntrack_pernet_exit+0x5d/0x70
[ 418.321101] [<ffffffff83cda1ce>] ops_exit_list+0x5e/0x70
[ 418.321101] [<ffffffff83cda80b>] cleanup_net+0xfb/0x1c0
[ 418.321101] [<ffffffff81145c28>] process_one_work+0x338/0x550
[ 418.321101] [<ffffffff81145b50>] ? process_one_work+0x260/0x550
[ 418.321883] [<ffffffff81147605>] worker_thread+0x215/0x350
[ 418.321883] [<ffffffff811473f0>] ? manage_workers+0x180/0x180
[ 418.321883] [<ffffffff81150887>] kthread+0xe7/0xf0
[ 418.321883] [<ffffffff811507a0>] ? __init_kthread_worker+0x70/0x70
[ 418.321883] [<ffffffff841c7a2c>] ret_from_fork+0x7c/0xb0
[ 418.321883] [<ffffffff811507a0>] ? __init_kthread_worker+0x70/0x70
[ 418.321883] ---[ end trace c974221542b61d0d ]---
Thanks,
Sasha
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