>[36276.946304] BUG: Bad page map in process gnome-system-mo  pte:800000013f5ef06f pmd:11f4d7067
addr:00007fbffb3f9000 vm_flags:020840fb anon_vma:(null) mapping:ffff88012009c1e8 index:120243
vma->vm_ops->fault: 0x0
vma->vm_file->f_op->mmap: nv_kern_mmap+0x0/0x710 [nvidia]
Pid: 9415, comm: gnome-system-mo Tainted: P    B D    2.6.31-11-generic #38-Ubuntu
Call Trace:
 [<ffffffff810ef8cd>] print_bad_pte+0x1cd/0x280
 [<ffffffff810ef9db>] vm_normal_page+0x5b/0x60
 [<ffffffff8116c814>] smaps_pte_range+0x104/0x1d0
 [<ffffffff810fe7c2>] walk_pmd_range+0xb2/0x1a0
 [<ffffffff810fe9b8>] walk_pud_range+0x108/0x140
 [<ffffffff810fead9>] walk_page_range+0xe9/0x150
 [<ffffffff8116ce8d>] show_smap+0x16d/0x180
 [<ffffffff8152330b>] ? __down_read+0xbb/0xc6
 [<ffffffff815226a9>] ? down_read+0x19/0x20
 [<ffffffff8116c710>] ? smaps_pte_range+0x0/0x1d0
 [<ffffffff81136e37>] seq_read+0x267/0x3f0
 [<ffffffff8111a1a5>] vfs_read+0xb5/0x1a0
 [<ffffffff8111a7ac>] sys_read+0x4c/0x80
 [<ffffffff81011fc2>] system_call_fastpath+0x16/0x1b