User-Agent:       Mozilla/5.0 (Windows NT 6.1; WOW64; rv:25.0) Gecko/20141021
Firefox/24.9 PaleMoon/25.0.2
Build Identifier: 

)
Nov  3 11:43:09 Office kernel: [    0.112550] ftrace: allocating 14904 entries
in 59 pages
Nov  3 11:43:09 Office kernel: [    0.116432] ------------[ cut here
]------------
Nov  3 11:43:09 Office kernel: [    0.116447] WARNING: CPU: 0 PID: 0 at
../kernel/trace/ftrace.c:1776 ftrace_bug+0x203/0x270()
Nov  3 11:43:09 Office kernel: [    0.116450] Modules linked in:
Nov  3 11:43:09 Office kernel: [    0.116457] CPU: 0 PID: 0 Comm: swapper/0 Not
tainted 3.17.1-53.gd944251-ec2 #1
Nov  3 11:43:09 Office kernel: [    0.116459] Hardware name: Xen 3.4.3.amazon
PV guest
Nov  3 11:43:09 Office kernel: [    0.116462]  ffffffff8000ca25
ffffffff803e41ea 0000000000000000 ffffffff8002e117
Nov  3 11:43:09 Office kernel: [    0.116468]  0000000000000000
ffffffff80006000 ffff8800ea0257a0 0000000000000000
Nov  3 11:43:09 Office kernel: [    0.116472]  ffff8800ea080000
ffffffff800c34b3 0000000000000000 ffffffff80006000
Nov  3 11:43:09 Office kernel: [    0.116478] Call Trace:
Nov  3 11:43:09 Office kernel: [    0.116494]  [<ffffffff8000a9cb>]
dump_trace+0x7b/0x1f0
Nov  3 11:43:09 Office kernel: [    0.116500]  [<ffffffff8000abd4>]
show_stack_log_lvl+0x94/0x170
Nov  3 11:43:09 Office kernel: [    0.116505]  [<ffffffff8000ca41>]
show_stack+0x21/0x50
Nov  3 11:43:09 Office kernel: [    0.116511]  [<ffffffff803e41ea>]
dump_stack+0x41/0x51
Nov  3 11:43:09 Office kernel: [    0.116519]  [<ffffffff8002e117>]
warn_slowpath_common+0x77/0x90
Nov  3 11:43:09 Office kernel: [    0.116525]  [<ffffffff800c34b3>]
ftrace_bug+0x203/0x270
Nov  3 11:43:09 Office kernel: [    0.116533]  [<ffffffff800c3b33>]
ftrace_process_locs+0x3d3/0x6c0
Nov  3 11:43:09 Office kernel: [    0.116545]  [<ffffffff8076183e>]
ftrace_init+0xdd/0x17c
Nov  3 11:43:09 Office kernel: [    0.116552]  [<ffffffff80755c2d>]
start_kernel+0x4af/0x4bf
Nov  3 11:43:09 Office kernel: [    0.116563] ---[ end trace c84328a9fc27084e
]---
Nov  3 11:43:09 Office kernel: [    0.116565] ftrace faulted on writing
[<ffffffff80006000>] run_init_process+0x0/0x30
Nov  3 11:43:09 Office kernel: [    0.118271] Brought up 1 CPUs                 

Reproducible: Always

Steps to Reproduce:
1.reboot
2.
3.