Here is an example of the oops:
[ 17.364774] BUG: Bad page state in process wpa_supplicant pfn:39000
[ 17.364784] page:c1721000 flags:80800000 count:0 mapcount:0 mapping:(null)
index:0
[ 17.364792] Pid: 1766, comm: wpa_supplicant Not tainted 2.6.32-12-generic
#16-Ubuntu
[ 17.364796] Call Trace:
[ 17.364810] [<c05a3319>] ? printk+0x1d/0x24
[ 17.364820] [<c01cbe64>] bad_page+0xe4/0x140
[ 17.364828] [<c01cc89a>] prep_new_page+0x4a/0x160
[ 17.364835] [<c01ccaf7>] get_page_from_freelist+0x147/0x360
[ 17.364844] [<c01e66a5>] ? __vma_link_rb+0x35/0x40
[ 17.364852] [<c01cd4b5>] __alloc_pages_nodemask+0xc5/0x170
[ 17.364860] [<c01e2530>] do_anonymous_page+0x100/0x270
[ 17.364868] [<c0130555>] ? kmap_atomic_prot+0xd5/0xf0
[ 17.364875] [<c01e4008>] handle_mm_fault+0x338/0x390
[ 17.364882] [<c01e850c>] ? do_mmap_pgoff+0x25c/0x300
[ 17.364890] [<c05a7ed8>] do_page_fault+0x148/0x380
[ 17.364898] [<c01dc4b6>] ? sys_mmap_pgoff+0x76/0x240
[ 17.364905] [<c05a7d90>] ? do_page_fault+0x0/0x380
[ 17.364911] [<c05a5d03>] error_code+0x73/0x80
[ 17.364916] Disabling lock debugging due to kernel taint
** Changed in: linux (Ubuntu)
Status: New => Triaged
** Changed in: linux (Ubuntu)
Importance: Undecided => Low
** Changed in: linux (Ubuntu)
Importance: Low => Medium
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Bad page state in first big process after booting by grub-efi-ia32 on MacBook
https://bugs.launchpad.net/bugs/516067
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