3.624054] BUG: Bad page map in process gnome-panel  pte:c01ef740 pmd:18b8f067
addr:007de000 vm_flags:08000075 anon_vma:(null) mapping:df5b4ca0 index:2
vma->vm_ops->fault: filemap_fault+0x0/0x370
vma->vm_file->f_op->mmap: ext4_file_mmap+0x0/0x50
Pid: 4385, comm: gnome-panel Tainted: G    B D    2.6.31-3-generic #19-Ubuntu
Call Trace:
 [<c01c2690>] print_bad_pte+0x140/0x200
 [<c01c27ac>] vm_normal_page+0x5c/0x60
 [<c01c3dca>] zap_pte_range+0x1aa/0x3e0
 [<c01c4486>] unmap_vmas+0x186/0x350
 [<c01c9393>] exit_mmap+0xa3/0x160
 [<c013dffe>] mmput+0x2e/0xa0
 [<c01425a2>] exit_mm+0xe2/0x120
 [<c01427cc>] do_exit+0xfc/0x300
 [<c014cd7f>] ? dequeue_signal+0x2f/0x190
 [<c0142a0a>] do_group_exit+0x3a/0xb0
 [<c014e61f>] get_signal_to_deliver+0x18f/0x300
 [<c010307b>] do_signal+0x6b/0x160
 [<c012db31>] ? __dequeue_entity+0x21/0x40
 [<c0132a57>] ? finish_task_switch+0x57/0xe0
 [<c0573dfe>] ? schedule+0x44e/0x780
 [<c0578070>] ? do_page_fault+0x0/0x390
 [<c01031a8>] do_notify_resume+0x38/0x50
 [<c0103468>] work_notifysig+0x13/0x1b