System with a GFS2 filesystem mounted is crashing/panicking at "gfs2_glock_hold - BUG at fs/gfs2/glock.c:135!" on RHEL 6

Issue

• System with a GFS2 filesystem mounted is crashing/panicking at the following line of code fs/gfs2/glock.c:135!. The backtrace is below:

kernel BUG at fs/gfs2/glock.c:135!
invalid opcode: 0000 [#1] SMP 
last sysfs file: /sys/devices/pci0000:00/0000:00:1c.4/0000:02:00.4/usb6/speed
CPU 1 
Modules linked in: tcp_diag inet_diag mptctl mptbase autofs4 gfs2 dlm configfs sunrpc bonding 8021q garp stp llc ipv6 uinput microcode iTCO_wdt iTCO_vendor_support lpc_ich mfd_core hpilo hpwdt i7core_edac edac_core power_meter ses enclosure sg tg3 ptp pps_core netxen_nic shpchp ext4 jbd2 mbcache dm_round_robin sr_mod cdrom sd_mod crc_t10dif qla2xxx scsi_transport_fc scsi_tgt pata_acpi ata_generic ata_piix hpsa(U) radeon ttm drm_kms_helper drm i2c_algo_bit i2c_core dm_multipath dm_mirror dm_region_hash dm_log dm_mod [last unloaded: scsi_wait_scan]

Pid: 9921, comm: dlm_astd Not tainted 2.6.32-431.el6.x86_64 #1 HP ProLiant DL580 G7
RIP: 0010:[<ffffffffa04c7740>]  [<ffffffffa04c7740>] gfs2_glock_hold+0x20/0x30 [gfs2]
RSP: 0018:ffff88083135fd30  EFLAGS: 00010282
RAX: 0000000000000000 RBX: ffff880fdfe5c6d0 RCX: 000000000000c062
RDX: 0000000000000000 RSI: 0000000000000046 RDI: 0000000000000246
RBP: ffff88083135fd30 R08: 0000000000000000 R09: 00000000fffffffc
R10: 0000000000000002 R11: 0000000000000000 R12: 0000000000000001
R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000005
FS:  0000000000000000(0000) GS:ffff880045840000(0000) knlGS:0000000000000000
CS:  0010 DS: 0018 ES: 0018 CR0: 000000008005003b
CR2: 0000003e05a1ea50 CR3: 00000007e909c000 CR4: 00000000000007e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process dlm_astd (pid: 9921, threadinfo ffff88083135e000, task ffff8808305aa040)
Stack:
 ffff88083135fd60 ffffffffa04c7daf ffff88083135fd60 ffffffff810a6216
<d> 000000005575359a ffff880fdfe5c6d0 ffff88083135fdb0 ffffffffa04e7d82
<d> ffff88083135fdb0 ffffffffa048c68a ffff88083135fda0 ffff88089cc3dc60
Call Trace:
 [<ffffffffa04c7daf>] gfs2_glock_complete+0x2f/0xc0 [gfs2]
 [<ffffffff810a6216>] ? ktime_get_real+0x16/0x50
 [<ffffffffa04e7d82>] gdlm_ast+0x1d2/0x210 [gfs2]
 [<ffffffffa048c68a>] ? dlm_rem_lkb_callback+0x1da/0x1f0 [dlm]
 [<ffffffffa04e7b60>] ? gdlm_bast+0x0/0x50 [gfs2]
 [<ffffffffa048c863>] process_asts+0x1c3/0x1f0 [dlm]
 [<ffffffffa04e7b60>] ? gdlm_bast+0x0/0x50 [gfs2]
 [<ffffffffa04e7bb0>] ? gdlm_ast+0x0/0x210 [gfs2]
 [<ffffffffa048c915>] dlm_astd+0x85/0xa0 [dlm]
 [<ffffffffa048c890>] ? dlm_astd+0x0/0xa0 [dlm]
 [<ffffffff8109aef6>] kthread+0x96/0xa0
 [<ffffffff8100c20a>] child_rip+0xa/0x20
 [<ffffffff8109ae60>] ? kthread+0x0/0xa0
 [<ffffffff8100c200>] ? child_rip+0x0/0x20
Code: 66 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 0f 1f 44 00 00 8b 47 30 85 c0 74 06 f0 ff 47 30 c9 c3 48 89 fe 31 ff e8 f0 fc ff ff <0f> 0b eb fe 66 66 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 48 
RIP  [<ffffffffa04c7740>] gfs2_glock_hold+0x20/0x30 [gfs2]
 RSP <ffff88083135fd30>