BUG: unable to handle kernel NULL pointer dereference at 0000000000000008 IP: [<ffffffffa047a11f>] gfs2_trans_add_meta+0x5f/0x210 [gfs2]

Issue

• A GFS2 filesystem generated a panic: BUG: unable to handle kernel NULL pointer dereference at 0000000000000008 IP: [<ffffffffa047a11f>] gfs2_trans_add_meta+0x5f/0x210 [gfs2]

BUG: unable to handle kernel NULL pointer dereference at 0000000000000008
IP: [<ffffffffa047a11f>] gfs2_trans_add_meta+0x5f/0x210 [gfs2]
PGD 0 
Oops: 0000 [#1] SMP 
last sysfs file: /sys/module/ipv6/initstate
CPU 0 
Modules linked in: seos(P)(U) gfs2 xfs exportfs iptable_filter ip_tables dlm configfs vsock(U) ipv6 ext3 jbd microcode ppdev vmware_balloon parport_pc parport sg vmci(U) i2c_piix4 i2c_core shpchp ext4 jbd2 mbcache sd_mod crc_t10dif sr_mod cdrom vmxnet3 vmw_pvscsi mptsas mptscsih mptbase scsi_transport_sas pata_acpi ata_generic ata_piix dm_mirror dm_region_hash dm_log dm_mod [last unloaded: gfs2]

Pid: 14124, comm: sftp-server Tainted: P        W  ---------------    2.6.32-431.23.3.el6.x86_64 #1 VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform
RIP: 0010:[<ffffffffa047a11f>]  [<ffffffffa047a11f>] gfs2_trans_add_meta+0x5f/0x210 [gfs2]
RSP: 0018:ffff8801a1493ab8  EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff88024f6f6a20 RCX: ffff880028048708
RDX: 0000000000000000 RSI: 0000000000000212 RDI: ffff8802efe8c650
RBP: ffff8801a1493af8 R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8802efe8c650
R13: ffff8802efe8c000 R14: ffff8801deb22818 R15: 0000000000000018
FS:  00007f53d79727c0(0000) GS:ffff880032e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 0000000000000008 CR3: 0000000190222000 CR4: 00000000000407f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process sftp-server (pid: 14124, threadinfo ffff8801a1492000, task ffff8800ba88d540)
Stack:
 ffff88021157ecf8 0000000000000000 ffff8801a1493ae8 ffff8802efe8c000
<d> ffff8802efe8c420 ffffffffffffffff 0000000000000000 0000000000000001
<d> ffff8801a1493b48 ffffffffa0476c90 ffff8801a365d208 ffff88024f6f6a20
Call Trace:
 [<ffffffffa0476c90>] gfs2_statfs_change+0x80/0x130 [gfs2]
 [<ffffffffa04754d7>] gfs2_alloc_blocks+0x437/0x850 [gfs2]
 [<ffffffff8152a8f6>] ? down_read+0x16/0x30
 [<ffffffffa047a033>] ? gfs2_trans_begin+0x103/0x190 [gfs2]
 [<ffffffffa0460fb5>] gfs2_create_inode+0xb55/0x1060 [gfs2]
 [<ffffffffa045f9c6>] ? gfs2_glock_nq_init+0x16/0x40 [gfs2]
 [<ffffffffa045bc0e>] ? gfs2_glock_dq_uninit+0x1e/0x30 [gfs2]
 [<ffffffffa046c10c>] ? gfs2_permission+0x9c/0x100 [gfs2]
 [<ffffffffa046bc30>] gfs2_create+0x30/0x40 [gfs2]
 [<ffffffff812280cf>] ? security_inode_create+0x1f/0x30
 [<ffffffff81198416>] vfs_create+0xe6/0x110
 [<ffffffff8119c27e>] do_filp_open+0xa8e/0xd20
 [<ffffffff8118e7a4>] ? cp_new_stat+0xe4/0x100
 [<ffffffff8128f87a>] ? strncpy_from_user+0x4a/0x90
 [<ffffffff811a8bd2>] ? alloc_fd+0x92/0x160
 [<ffffffff81185c39>] do_sys_open+0x69/0x140
 [<ffffffff811897d1>] ? sys_read+0x51/0x90
 [<ffffffff81185d50>] sys_open+0x20/0x30
 [<ffffffff8100b072>] system_call_fastpath+0x16/0x1b
Code: 02 19 c0 85 c0 0f 85 8f 01 00 00 4d 8d a5 50 06 00 00 4c 89 e7 e8 d2 14 0b e1 48 8b 53 40 48 85 d2 4c 8d 7a 18 0f 84 c9 00 00 00 <4c> 3b 72 08 0f 85 59 01 00 00 65 48 8b 04 25 c0 cb 00 00 4c 8b 
RIP  [<ffffffffa047a11f>] gfs2_trans_add_meta+0x5f/0x210 [gfs2]
 RSP <ffff8801a1493ab8>
CR2: 0000000000000008