Description of problem:
Having updated some machines from FC6 to F7. When rebooting them, I get a
strange consol message when the reboot ends:

BUG: warning at kernel/softirq.c:138/local_bh_enable() (Not tainted)
 [<c042b0cf>] local_bh_enable+0x45/0x92
 [<c06002bd>] cond_resched_softirq+0x2c/0x42
 [<c059adf3>] release_sock+0x4f/0x9d
 [<c05c670d>] tcp_sendmsg+0x90b/0x9f9
 [<c04878d6>] mntput_no_expire+0x11/0x6a
 [<c0602f81>] do_page_fault+0x273/0x4d1
 [<c0483fa6>] __d_lookup+0x96/0xd9
 [<c05dec95>] inet_sendmsg+0x3b/0x45
 [<c0599180>] sock_sendmsg+0xd0/0xeb
 [<c048652a>] touch_atime+0x95/0xbb
 [<c0436e71>] autoremove_wake_function+0x0/0x35
 [<c04878d6>] mntput_no_expire+0x11/0x6a
 [<c047da8a>] link_path_walk+0xa9/0xb3
 [<c04668b4>] unmap_region+0xd8/0xf7
 [<c045da36>] get_page_from_freelist+0x23b/0x2a5
 [<c0599a44>] sys_sendto+0x118/0x138
 [<c045db08>] __alloc_pages+0x68/0x2aa
 [<c04e7350>] copy_to_user+0x3c/0x50
 [<c0469fea>] anon_vma_prepare+0x20/0xb5
 [<c0464d24>] __handle_mm_fault+0x8ce/0x8f3
 [<c0599a9b>] sys_send+0x37/0x3b
 [<c059a406>] sys_socketcall+0x14a/0x261
 [<c0404f70>] syscall_call+0x7/0xb
 =======================

Seems to be harmless.

Version-Release number of selected component (if applicable):
2.6.21-1.3194.fc7


How reproducible:
Update FC6 to F7 and reboot.

Steps to Reproduce:
1.--
2.
3.
  
Actual results:
See above.

Expected results:
No kernel trace appears.

Additional info:
Comes not on all of my updated machines, but only on some few(Athlon and Intel
mixed).