[<0>] khugepaged_wait_work+0x1f6/0x200
[<0>] khugepaged+0x78/0x1f0
[<0>] kthread+0xf2/0x120
[<0>] ret_from_fork+0x47/0x70
[<0>] ret_from_fork_asm+0x1b/0x30