XEN rest_init stack trace

[    1.286653] ------------[ cut here ]------------
[    1.286657] WARNING: CPU: 1 PID: 1 at /build/linux-aOJbQa/linux-4.6.4/arch/x86/mm/dump_pagetables.c:225 note_page+0x5e8/0x790
[    1.286662] x86/mm: Found insecure W+X mapping at address ffff880000000000/0xffff880000000000
[    1.286666] Modules linked in:
[    1.286670] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 4.6.0-1-amd64 #1 Debian 4.6.4-1
[    1.286674]  0000000000000200 000000009466de96 ffffffff81311505 ffff88007c467de0
[    1.286681]  0000000000000000 ffffffff8107a50e ffff88007c467ed0 ffff88007c467e38
[    1.286687]  0000000000000004 0000000000000000 0000880000000000 ffffc00000000fff
[    1.286694] Call Trace:
[    1.286701]  [<ffffffff81311505>] ? dump_stack+0x5c/0x77
[    1.286706]  [<ffffffff8107a50e>] ? __warn+0xbe/0xe0
[    1.286710]  [<ffffffff8107a58f>] ? warn_slowpath_fmt+0x5f/0x80
[    1.286715]  [<ffffffff810cd4a9>] ? vprintk_emit+0x339/0x4e0
[    1.286719]  [<ffffffff8106cad8>] ? note_page+0x5e8/0x790
[    1.286724]  [<ffffffff8106d027>] ? ptdump_walk_pgd_level_core+0x3a7/0x3e0
[    1.286729]  [<ffffffff815b9bc6>] ? kernel_init+0x26/0x100
[    1.286732]  [<ffffffff815c69b2>] ? ret_from_fork+0x22/0x40
[    1.286735]  [<ffffffff815b9ba0>] ? rest_init+0x80/0x80
[    1.286738] ---[ end trace 80e04700d2be49b5 ]---
[    1.293232] x86/mm: Checked W+X mappings: FAILED, 5774 W+X pages found.