[9149986.448321] ------------[ cut here ]------------
[9149986.451801] kernel BUG at /build/buildd/linux-lts-trusty-3.13.0/mm/page_alloc.c:968!
[9149986.452056] invalid opcode: 0000 [#1] SMP
[9149986.452056] Modules linked in: cirrus ttm crct10dif_pclmul crc32_pclmul drm_kms_helper ghash_clmulni_intel drm psmouse aesni_intel serio_raw fb_sys_fops ablk_helper i2c_piix4 mac_hid sysimgblt cryptd sysfillrect lrw syscopyarea gf128mul glue_helper aes_x86_64 pata_acpi floppy
[9149986.452056] CPU: 1 PID: 4075 Comm: du Not tainted 3.13.0-53-generic #89~precise1-Ubuntu
[9149986.452056] Hardware name: Xen HVM domU, BIOS 4.2.amazon 05/06/2015
[9149986.452056] task: ffff880019d23000 ti: ffff8800293e6000 task.ti: ffff8800293e6000
[9149986.452056] RIP: 0010:[<ffffffff8115e174>]  [<ffffffff8115e174>] move_freepages+0x104/0x110
[9149986.452056] RSP: 0018:ffff8800293e7848  EFLAGS: 00010006
[9149986.452056] RAX: ffff8803e08fb000 RBX: ffffea000f820000 RCX: 0000000000000001
[9149986.452056] RDX: ffffea000f827fc0 RSI: ffffea000f820000 RDI: ffff8803e08fbf00
[9149986.452056] RBP: ffff8800293e7868 R08: 0000000000000000 R09: ffff8803e08fbf00
[9149986.452056] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000002
[9149986.452056] R13: 0000000000000003 R14: ffff8803e08fc0c0 R15: ffffea000f820020
[9149986.452056] FS:  00007ff81621a700(0000) GS:ffff8803e0420000(0000) knlGS:0000000000000000
[9149986.452056] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[9149986.452056] CR2: 00007ff6164f6000 CR3: 000000010f2e7000 CR4: 00000000001406e0
[9149986.452056] Stack:
[9149986.452056]  ffffea000f820000 0000000000000002 0000000000000003 ffff8803e08fc0c0
[9149986.452056]  ffff8800293e7878 ffffffff8115e1f4 ffff8800293e78f8 ffffffff8115ffee
[9149986.452056]  0000000000000040 ffff8803e08fc0c0 0000000000000018 0000000000000002
[9149986.452056] Call Trace:
[9149986.452056]  [<ffffffff8115e1f4>] move_freepages_block+0x74/0x80
[9149986.452056]  [<ffffffff8115ffee>] __rmqueue+0x3de/0x4b0
[9149986.452056]  [<ffffffff81161985>] get_page_from_freelist+0x5a5/0x630
[9149986.452056]  [<ffffffff8116213e>] __alloc_pages_nodemask+0x1de/0xbb0
[9149986.452056]  [<ffffffff8116213e>] ? __alloc_pages_nodemask+0x1de/0xbb0
[9149986.452056]  [<ffffffff811a3e22>] alloc_pages_current+0xb2/0x170
[9149986.452056]  [<ffffffff811acfad>] allocate_slab+0x13d/0x1a0
[9149986.452056]  [<ffffffff811ad040>] new_slab+0x30/0x1d0
[9149986.452056]  [<ffffffff81752368>] __slab_alloc+0x18a/0x2c2
[9149986.452056]  [<ffffffff81231ea0>] ? proc_alloc_inode+0x20/0xb0
[9149986.452056]  [<ffffffff811b0933>] kmem_cache_alloc+0x1d3/0x1f0
[9149986.452056]  [<ffffffff81231ea0>] ? proc_alloc_inode+0x20/0xb0
[9149986.452056]  [<ffffffff813849f5>] ? number.isra.1+0x355/0x390
[9149986.452056]  [<ffffffff81231ea0>] proc_alloc_inode+0x20/0xb0
[9149986.452056]  [<ffffffff811e5936>] alloc_inode+0x26/0xa0
[9149986.452056]  [<ffffffff811e73fa>] new_inode_pseudo+0x1a/0x70
[9149986.452056]  [<ffffffff811e746d>] new_inode+0x1d/0x40
[9149986.452056]  [<ffffffff812363f5>] proc_pid_make_inode+0x25/0x110
[9149986.452056]  [<ffffffff8123a8fb>] proc_fd_instantiate+0x2b/0xb0
[9149986.452056]  [<ffffffff81236cfa>] proc_fill_cache+0xda/0x100
[9149986.452056]  [<ffffffff813863d4>] ? snprintf+0x34/0x40
[9149986.452056]  [<ffffffff8123a8d0>] ? proc_fdinfo_instantiate+0xa0/0xa0
[9149986.452056]  [<ffffffff810a88d1>] ? update_curr+0x141/0x200
[9149986.452056]  [<ffffffff8123a305>] proc_readfd_common+0xe5/0x1f0
[9149986.452056]  [<ffffffff8123a8d0>] ? proc_fdinfo_instantiate+0xa0/0xa0
[9149986.452056]  [<ffffffff81013623>] ? __switch_to+0x173/0x4e0
[9149986.452056]  [<ffffffff8123a445>] proc_readfd+0x15/0x20
[9149986.452056]  [<ffffffff811de2bd>] iterate_dir+0xad/0xe0
[9149986.452056]  [<ffffffff81762a1e>] ? __schedule+0x38e/0x700
[9149986.452056]  [<ffffffff811de41e>] SyS_getdents+0x8e/0x110
[9149986.452056]  [<ffffffff811de040>] ? filldir64+0x110/0x110
[9149986.452056]  [<ffffffff8176f9dd>] system_call_fastpath+0x1a/0x1f
[9149986.452056] Code: 49 89 5b 08 45 89 cb 41 d3 e3 4c 89 46 10 44 89 d9 4d 63 db 49 c1 e3 06 01 c8 4c 01 de 48 39 f2 73 96 5b 41 5c 41 5d 41 5e 5d c3 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 b8 00 00
[9149986.452056] RIP  [<ffffffff8115e174>] move_freepages+0x104/0x110
[9149986.452056]  RSP <ffff8800293e7848>
[9149986.452056] ---[ end trace e79a946396d7799a ]---