Issue

• Kernel panic with below traces:

BUG: unable to handle kernel paging request at ffffffff00000000
IP: [<ffffffff811b26ab>] do_mpage_readpage+0x3b/0x5f0
PGD 1a87067 PUD 0 
Oops: 0000 [#1] SMP 
last sysfs file: /sys/devices/system/cpu/cpu23/topology/thread_siblings
CPU 0 
Modules linked in: nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables nf_conntrack_ipv4 nf_defrag_ipv4 iptable_filter ip_tables mptctl mptbase bridge stp llc ext2 seos(P)(U) sunrpc pcc_cpufreq bonding xt_state nf_conntrack ipv6 hpilo hpwdt(U) power_meter microcode sg be2net(U) serio_raw iTCO_wdt iTCO_vendor_support ioatdma dca shpchp ext4 mbcache jbd2 dm_round_robin sd_mod crc_t10dif hpsa(U) lpfc(U) scsi_transport_fc scsi_tgt video output dm_multipath dm_mirror dm_region_hash dm_log dm_mod [last unloaded: nf_defrag_ipv6]

Pid: 32113, comm: oracle Tainted: P        W  ----------------   2.6.32-220.23.1.el6.x86_64 #1 HP ProLiant BL460c Gen8
RIP: 0010:[<ffffffff811b26ab>]  [<ffffffff811b26ab>] do_mpage_readpage+0x3b/0x5f0
RSP: 0018:ffff880d014fdb68  EFLAGS: 00010292
RAX: ffffffff00000000 RBX: ffff880d014fdc48 RCX: ffff880d014fdcc0
RDX: 0000000000000001 RSI: ffffea0001c00a00 RDI: 0000000000000000
RBP: ffff880d014fdc28 R08: ffff880d014fdc48 R09: ffff880d014fdcb8
R10: 0000000000000000 R11: 0000000000000246 R12: ffff881803c421e0
R13: 00000000001ec724 R14: ffff880c008816c0 R15: 00000000000000ea
FS:  00007fe1be6cf700(0000) GS:ffff880053c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffff00000000 CR3: 0000000cac6bb000 CR4: 00000000000406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process oracle (pid: 32113, threadinfo ffff880d014fc000, task ffff88180a541500)
Stack:
 ffff88180a541ab8 ffff88181f43b7e0 ffff880d014fdcc0 000000011f43b7f0
<0> ffff880d014fdcb8 0000000000000202 ffff880d014fdbd8 ffffffff810e1409
<0> ffffea0001c00a00 000000000064156d ffff88180a541500 ffff880053c15f80
Call Trace:
 [<ffffffff810e1409>] ? delayacct_end+0x89/0xa0
 [<ffffffff810e1484>] ? __delayacct_blkio_end+0x34/0x60
 [<ffffffff814eda02>] ? io_schedule+0x92/0xc0
 [<ffffffff811b2caf>] mpage_readpage+0x4f/0x70
 [<ffffffffa0171cf0>] ? ext4_get_block+0x0/0x120 [ext4]
 [<ffffffff8112795c>] ? activate_page+0x16c/0x1a0
 [<ffffffff81010b2e>] ? copy_user_generic+0xe/0x20
 [<ffffffff81110483>] ? file_read_actor+0x163/0x180
 [<ffffffffa016dd78>] ext4_readpage+0x18/0x20 [ext4]
 [<ffffffff8111266c>] generic_file_aio_read+0x1fc/0x700
 [<ffffffff8117687a>] do_sync_read+0xfa/0x140
 [<ffffffff81090d30>] ? autoremove_wake_function+0x0/0x40
 [<ffffffff8120c836>] ? security_file_permission+0x16/0x20
 [<ffffffff81177275>] vfs_read+0xb5/0x1a0
 [<ffffffff811775a2>] sys_pread64+0x82/0xa0
 [<ffffffff8100b0f2>] system_call_fastpath+0x16/0x1b
Code: 98 00 00 00 0f 1f 44 00 00 48 89 75 80 89 95 5c ff ff ff 49 89 fa 48 89 8d 50 ff ff ff 4c 89 8d 60 ff ff ff 4c 89 c3 48 8b 46 18 <48> 8b 00 48 89 85 68 ff ff ff 8b 80 a8 00 00 00 89 45 8c 48 8b 
RIP  [<ffffffff811b26ab>] do_mpage_readpage+0x3b/0x5f0
 RSP <ffff880d014fdb68>
CR2: ffffffff00000000