System panic with RIP dequeue_hwpoisoned_huge_page

Issue

• System panicked with following calltraces in kernel ring buffer:

[Hardware Error]: Machine check events logged
[Hardware Error]: Machine check events logged
[Hardware Error]: Machine check events logged
[Hardware Error]: Machine check events logged
[Hardware Error]: Machine check events logged
[Hardware Error]: Machine check events logged
BUG: unable to handle kernel NULL pointer dereference at 0000000000000048
IP: [<ffffffff811619a0>] dequeue_hwpoisoned_huge_page+0x120/0x1b0
PGD 3af6347067 PUD 4011a47067 PMD 0
Oops: 0000 [#1] SMP
last sysfs file: /sys/devices/system/cpu/online
CPU 6
Modules linked in: iptable_nat nf_nat nf_conntrack_ipv4 nf_conntrack nf_defrag_ipv4 bridge ip6table_filter ip6_tables iptable_filter ip_tables ebtable_nat 

Pid: 2965, comm: mcelog Not tainted 2.6.32-431.29.2.el6.x86_64 #1 HP ProLiant DL380p Gen8
RIP: 0010:[<ffffffff811619a0>]  [<ffffffff811619a0>] dequeue_hwpoisoned_huge_page+0x120/0x1b0
RSP: 0018:ffff883af630fdf8  EFLAGS: 00010246
RAX: 0000000000000040 RBX: 0000000000000000 RCX: 0000000000000009
RDX: 0000000000001000 RSI: ffffffff81fc0128 RDI: 0000000000001000
RBP: ffff883af630fe18 R08: 0000000000200000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffea0061a0a000
R13: 0040000001080000 R14: ffffea0061a0a000 R15: ffffffff81b073c8
FS:  00007fab9444a700(0000) GS:ffff880099ac0000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000048 CR3: 0000003af6287000 CR4: 00000000000407e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process mcelog (pid: 2965, threadinfo ffff883af630e000, task ffff884012fbcaa0)
Stack:
 0000000001be4d15 ffffea0061a0dc98 0000000001be4d15 0000000000000000
<d> ffff883af630fe58 ffffffff8117f08b ffff883af630fe28 ffff883af630fe28
<d> 0000000061a0dc98 000000000000000c ffff884012f9c400 ffffffff816545d0
Call Trace:
 [<ffffffff8117f08b>] soft_offline_page+0x1ab/0x4b0
 [<ffffffff81379c58>] store_soft_offline_page+0xa8/0xc0
 [<ffffffff8136ba89>] sysdev_class_store+0x29/0x30
 [<ffffffff812047b5>] sysfs_write_file+0xe5/0x170
 [<ffffffff81188e48>] vfs_write+0xb8/0x1a0
 [<ffffffff81189811>] sys_write+0x51/0x90
 [<ffffffff810e1bfe>] ? __audit_syscall_exit+0x25e/0x290
 [<ffffffff8100b072>] system_call_fastpath+0x16/0x1b
Code: 44 00 00 8b 48 08 49 89 f8 49 d3 e0 49 39 d0 74 0d 48 05 68 38 00 00 48 39 f0 72 e7 31 c0 49 c1 e9 37 49 c1 e1 04 49 8d 44 01 40 <48> 8b 50 08 48 8d 70 08 48 8d 4a d8 48 39 d6 48 8b 41 28 74 24
RIP  [<ffffffff811619a0>] dequeue_hwpoisoned_huge_page+0x120/0x1b0
 RSP <ffff883af630fdf8>
CR2: 0000000000000048