Stack overrun with XFS and btree splits

Issue

• System panicked with the following message:

BUG: unable to handle kernel paging request at fffffefbe9000000
IP: [<ffffffff81298820>] memset+0x20/0xc0
PGD 0 
Thread overran stack, or stack corrupted
Oops: 0002 [#1] SMP 
last sysfs file: /sys/devices/pci0000:00/0000:00:1c.0/0000:03:00.1/device
CPU 10 
Modules linked in: pf_ring(U) mptctl mptbase nfs lockd fscache auth_rpcgss nfs_acl sunrpc cpufreq_ondemand freq_table pcc_cpufreq bonding 8021q garp stp llc ipv6 ipt_REJECT nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack xt_comment xt_multiport iptable_filter ip_tables xfs exportfs ipmi_devintf power_meter acpi_ipmi ipmi_si ipmi_msghandler microcode iTCO_wdt iTCO_vendor_support hpilo hpwdt igb i2c_algo_bit i2c_core sg ixgbe mdio mlx4_en ptp pps_core mlx4_core serio_raw lpc_ich mfd_core ioatdma dca shpchp ext4 jbd2 mbcache sd_mod crc_t10dif hpsa dm_mirror dm_region_hash dm_log dm_mod [last unloaded: scsi_wait_scan]

Pid: 64503, comm: moloch-capture- Not tainted 2.6.32-504.el6.x86_64 #1 HP ProLiant SL4540 Gen8 /
RIP: 0010:[<ffffffff81298820>]  [<ffffffff81298820>] memset+0x20/0xc0
RSP: 0018:ffff88184aef3d30  EFLAGS: 00010206
RAX: 0000000000000000 RBX: fffffefbe9000000 RCX: 0000000000000068
RDX: 0000000000000000 RSI: 0000000000000000 RDI: fffffefbe9000000
RBP: ffff88184aef3d48 R08: 0000000000000000 R09: fffffefbe9000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff81128dbf
R13: 0000000000000000 R14: 000000000000000a R15: ffff88185f67b180
FS:  00007fec9c3df700(0000) GS:ffff880caa640000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: fffffefbe9000000 CR3: 000000186078f000 CR4: 00000000000407e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process moloch-capture- (pid: 64503, threadinfo ffff881853b40000, task ffff88185f6daae0)
Stack:
 ffffffff81016d31 0000000000000f40 ffffffff8112868f ffff88184aef3d68
<d> ffffffff81016da9 0000000000000001 ffff88185f6daae0 ffff88184aef3d78
<d> ffffffff8100c6fb ffff88184aef3d88 ffffffff8152d69e ffff88184aef3e90
Call Trace:
Code: 44 88 1f c3 90 90 90 90 90 90 90 49 89 f9 41 89 d0 41 83 e0 07 89 d1 c1 e9 03 40 0f b6 f6 48 b8 01 01 01 01 01 01 01 01 48 f7 e6 <f3> 48 ab 44 89 c1 f3 aa 4c 89 c8 c3 0f 1f 84 00 00 00 00 00 0f 
RIP  [<ffffffff81298820>] memset+0x20/0xc0
 RSP <ffff88184aef3d30>
CR2: fffffefbe9000000