BUG: unable to handle kernel paging request at ffff8801ff040000
IP: [<ffffffff8113091e>] memcmp_pages+0x6e/0x90
PGD 1002063 PUD f067 PMD 1000000ffcc0160 
Oops: 0000 [#1] SMP 
last sysfs file: /sys/devices/pci0000:00/0000:00:09.0/irq
CPU 2 
Modules linked in: ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack ipt_REJECT xt_tcpudp iptable_filter ip_tables x_tables kvm_amd kvm bridge stp fbcon tileblit font bitblit softcursor vga16fb vgastate amd64_edac_mod shpchp psmouse serio_raw edac_core k8temp edac_mce_amd i2c_nforce2 lp parport usbhid hid dm_raid45 xor tg3 pata_amd sata_nv forcedeth
Pid: 54, comm: ksmd Not tainted 2.6.32-24-server #42-Ubuntu Sun Fire X2200 M2                         
RIP: 0010:[<ffffffff8113091e>]  [<ffffffff8113091e>] memcmp_pages+0x6e/0x90
RSP: 0018:ffff88011adbbdb0  EFLAGS: 00010286
RAX: 00000001f4db9000 RBX: ffffea0006d90078 RCX: 0000000000001000
RDX: ffff88011adba000 RSI: ffff8801f4db9000 RDI: ffff8801ff040000
RBP: ffff88011adbbdb0 R08: 6db6db6db6db6db7 R09: 0000160000000000
R10: ffffea0006fc8e00 R11: 0000000000000000 R12: ffff88011adbbe10
R13: ffff88021a3709b0 R14: ffff8802029c79c0 R15: ffff8801f829f680
FS:  00007f88f6b1d760(0000) GS:ffff880123c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0018 ES: 0018 CR0: 000000008005003b
CR2: ffff8801ff040000 CR3: 0000000202b55000 CR4: 00000000000006e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process ksmd (pid: 54, threadinfo ffff88011adba000, task ffff88011adb16f0)
Stack:
 ffff88011adbbe00 ffffffff81130c35 ffff88011adbbe00 ffff88021a3709a8
<0> ffff88011adbbdf0 ffff8801f829f680 ffffea0006d90078 0000000000000000
<0> ffff88011adbbe10 ffff88011ba716f0 ffff88011adbbe40 ffffffff811310c6
Call Trace:
 [<ffffffff81130c35>] unstable_tree_search_insert+0x65/0x120
 [<ffffffff811310c6>] cmp_and_merge_page+0x116/0x1f0
 [<ffffffff811311d0>] ksm_do_scan+0x30/0xb0
 [<ffffffff811312c2>] ksm_scan_thread+0x72/0x160
 [<ffffffff81085090>] ? autoremove_wake_function+0x0/0x40
 [<ffffffff81131250>] ? ksm_scan_thread+0x0/0x160
 [<ffffffff81084d16>] kthread+0x96/0xa0
 [<ffffffff810141ea>] child_rip+0xa/0x20
 [<ffffffff81084c80>] ? kthread+0x0/0xa0
 [<ffffffff810141e0>] ? child_rip+0x0/0x20
Code: 8d 04 0f 4b 8d 3c 0a 48 c1 f8 03 48 c1 ff 03 49 0f af c0 49 0f af f8 48 c1 e0 0c 48 8d 34 08 48 c1 e7 0c 48 01 cf b9 00 10 00 00 <f3> a6 0f 97 c0 0f 92 c1 28 c8 0f be c0 83 6a 1c 01 83 6a 1c 01 
RIP  [<ffffffff8113091e>] memcmp_pages+0x6e/0x90
 RSP <ffff88011adbbdb0>
CR2: ffff8801ff040000
---[ end trace 516c05170132dd69 ]---