[<0>] rcu_gp_init+0x3f8/0x6d0
[<0>] rcu_gp_kthread+0x74/0x180
[<0>] kthread+0xf2/0x120
[<0>] ret_from_fork+0x47/0x70
[<0>] ret_from_fork_asm+0x1b/0x30