Description of problem:
ODEBUG: object is on stack, but not annotated
------------[ cut here ]------------
WARNING: at lib/debugobjects.c:291 __debug_object_init+0x2b9/0x370()
Hardware name: 
Modules linked in: squashfs nls_utf8 virtio_blk virtio_pci virtio_ring virtio [last unloaded: scsi_wait_scan]
Pid: 325, comm: dmsetup Not tainted 2.6.33-0.46.rc8.git1.fc13.x86_64 #1
Call Trace:
[<ffffffff8105034c>] warn_slowpath_common+0x7c/0x94
[<ffffffff81050378>] warn_slowpath_null+0x14/0x16
[<ffffffff812362b7>] __debug_object_init+0x2b9/0x370
[<ffffffff8123639b>] debug_object_init+0x14/0x19
[<ffffffff81067c42>] __init_work+0x27/0x29
[<ffffffff8139cd1e>] chunk_io+0xba/0x127
[<ffffffff810ff87b>] ? __vmalloc_area_node+0x12e/0x152
[<ffffffff8139d100>] ? alloc_area+0x59/0x82
[<ffffffff810ffa1c>] ? vmalloc+0x2a/0x2c
[<ffffffff8139a43b>] ? dm_add_exception+0x0/0x4c
[<ffffffff8139d261>] persistent_read_metadata+0xe1/0x332
[<ffffffff8122ce65>] ? __up_write+0x42/0x47
[<ffffffff8139c182>] snapshot_ctr+0x65f/0x7dd
[<ffffffff81395902>] dm_table_add_target+0x14e/0x1ca
[<ffffffff813977bc>] table_load+0x268/0x277
[<ffffffff81397554>] ? table_load+0x0/0x277
[<ffffffff8139818a>] ctl_ioctl+0x1ca/0x222
[<ffffffff810b04da>] ? __call_rcu+0x13b/0x14e
[<ffffffff813981f5>] dm_ctl_ioctl+0x13/0x17
[<ffffffff8112bca8>] vfs_ioctl+0x32/0xa6
[<ffffffff8112c228>] do_vfs_ioctl+0x490/0x4d6
[<ffffffff8112c2c4>] sys_ioctl+0x56/0x79
[<ffffffff81009c72>] system_call_fastpath+0x16/0x1b


Version-Release number of selected component (if applicable):
2.6.33-0.46.rc8.git1.fc13.x86_64

How reproducible:
always

Steps to Reproduce:
1. Boot desktop-x86_64-20100222.19.iso from http://alt.fedoraproject.org/pub/alt/nightly-composes/desktop/ in virt-manager(KVM).
2. Right after boot observe ABRT reporting kernel crash.