Kernel panic in journal_clean_one_cp_list() due to NULL pointer dereference.

Issue

• Kernel panic with following call traces.

Unable to handle kernel NULL pointer dereference at 0000000000000000 RIP: 
 [<ffffffff88035092>] :jbd:journal_clean_one_cp_list+0x36/0x105
PGD 346bbec067 PUD 0 
Oops: 0002 [1] SMP 
last sysfs file: /devices/pci0000:05/0000:05:00.0/0000:06:00.0/host5/rport-5:0-2/target5:0:0/5:0:0:3/state
CPU 18 
Modules linked in: vtune_drv(U) autofs4 ipmi_devintf ipmi_si ipmi_msghandler nfs fscache nfs_acl lockd sunrpc bonding ipv6 xfrm_nalgo crypto_api dm_round_robin dm_multipath scsi_dh video hwmon backlight sbs i2c_ec i2c_core button battery asus_acpi acpi_memhotplug ac parport_pc lp parport joydev shpchp sg ide_cd e1000e bnx2 cdrom pcspkr dm_raid45 dm_message dm_region_hash dm_mem_cache dm_snapshot dm_zero dm_mirror dm_log dm_mod usb_storage lpfc scsi_transport_fc ata_piix libata megaraid_sas sd_mod scsi_mod ext3 jbd uhci_hcd ohci_hcd ehci_hcd
Pid: 6042, comm: kjournald Tainted: G      2.6.18-164.2.1.el5 #1
RIP: 0010:[<ffffffff88035092>]  [<ffffffff88035092>] :jbd:journal_clean_one_cp_list+0x36/0x105
RSP: 0000:ffff81402bb11d60  EFLAGS: 00010202
RAX: 0000000000000000 RBX: ffff813fec4d1850 RCX: ffff81348375dde0
RDX: 0000000000000000 RSI: ffff81402bb11dac RDI: ffff813484b0b4f0
RBP: ffff81333fde4eb0 R08: ffff81402bb10000 R09: ffff81333fe44a30
R10: 00002b569d114eb0 R11: 0000000000000000 R12: 0000000000000000
R13: ffff81402bb11dac R14: 0000000000000000 R15: ffff813484b0b4f0
FS:  0000000000000000(0000) GS:ffff81402ffcf240(0000) knlGS:0000000000000000
CS:  0010 DS: 0018 ES: 0018 CR0: 000000008005003b
CR2: 0000000000000000 CR3: 00000036b9c7a000 CR4: 00000000000006e0
Process kjournald (pid: 6042, threadinfo ffff81402bb10000, task ffff81402dadc040)
Stack:  ffff81333fde4eb0 ffff813474dd04c0 ffff81402bb11dac 0000000000000000
 ffff81349f0aa7c0 ffff81312e21d780 ffff81402c1cd4d8 ffffffff8803591a
 ffff81333fe44a30 0000000088037d27 ffff813fdb007550 ffff81402c1cd400
Call Trace:
 [<ffffffff8803591a>] :jbd:__journal_clean_checkpoint_list+0x3a/0x94
 [<ffffffff880336bc>] :jbd:journal_commit_transaction+0x25a/0x106a
 [<ffffffff8009fc0d>] autoremove_wake_function+0x0/0x2e
 [<ffffffff8004b26a>] try_to_del_timer_sync+0x51/0x5a
 [<ffffffff8803758c>] :jbd:kjournald+0xc1/0x213
 [<ffffffff8009fc0d>] autoremove_wake_function+0x0/0x2e
 [<ffffffff8009f9f5>] keventd_create_kthread+0x0/0xc4
 [<ffffffff880374cb>] :jbd:kjournald+0x0/0x213
 [<ffffffff8009f9f5>] keventd_create_kthread+0x0/0xc4
 [<ffffffff8003298b>] kthread+0xfe/0x132
 [<ffffffff8005dfb1>] child_rip+0xa/0x11
 [<ffffffff8009f9f5>] keventd_create_kthread+0x0/0xc4
 [<ffffffff8003288d>] kthread+0x0/0x132
 [<ffffffff8005dfa7>] child_rip+0x0/0x11

Code: f0 0f ba 28 14 19 d2 85 d2 0f 85 80 00 00 00 e9 9c 00 00 00 
RIP  [<ffffffff88035092>] :jbd:journal_clean_one_cp_list+0x36/0x105
 RSP <ffff81402bb11d60>