System crashed at :ocfs2:ocfs2_wake_downconvert_thread+0x10/0x3d

Issue

• System was crashed with the following backtrace

NMI Watchdog detected LOCKUP on CPU 2
CPU 2 
Modules linked in: mptctl(U) ipmi_watchdog ipmi_devintf ipmi_si ipmi_msghandler oracleasm(U) autofs4 hidp ocfs2(U) nfs fscache nfs_acl rfcomm l2cap bluetooth ocfs2_dlmfs(U) ocfs2_dlm(U) ocfs2_nodemanager(U) configfs lockd sunrpc cpufreq_ondemand powernow_k8 freq_table bonding ipv6 xfrm_nalgo crypto_api be2iscsi(U) ib_iser rdma_cm ib_cm iw_cm ib_sa ib_mad ib_addr iscsi_tcp cxgb3i iw_cxgb3 ib_core cxgb3 8021q libiscsi_tcp bnx2i(U) libiscsi2 scsi_transport_iscsi2 scsi_transport_iscsi cnic(U) emcpvlumd(PU) emcpxcrypt(PU) emcpdm(PU) emcpgpx(PU) emcpmpx(PU) emcp(PU) dm_multipath scsi_dh video backlight sbs power_meter i2c_ec i2c_core dell_wmi wmi button battery asus_acpi acpi_memhotplug ac parport_pc lp parport sg bnx2(U) tg3(U) k8_edac k8temp hpilo hwmon serio_raw shpchp edac_mc pcspkr dm_raid45 dm_message dm_region_hash dm_mem_cache dm_snapshot dm_zero dm_mirror dm_log dm_mod mptspi(U) scsi_transport_spi mptsas(U) mptscsih(U) scsi_transport_sas usb_storage qla2xxx scsi_transport_fc cciss(U) ext3 jbd uhci_hcd ohci_hcd ehci_hcd hpahcisr(PU) sd_mod scsi_mod mptbase(U)
Pid: 5543, comm: ocfs2dc Tainted: P      2.6.18-194.el5 #1
RIP: 0010:[<ffffffff80065bff>]  [<ffffffff80065bff>] .text.lock.spinlock+0x5/0x30
RSP: 0000:ffff81010fcebbe8  EFLAGS: 00000082
RAX: 0000000000000005 RBX: ffff81045b1a9000 RCX: 0000000000000000
RDX: 0000000000000003 RSI: ffff810f805b58c8 RDI: ffff81045b1a9670
RBP: 0000000000000003 R08: ffff81010535f7e0 R09: 0000000000000000
R10: ffff810bb35dc300 R11: ffffffff8004533c R12: ffff810f805b58d8
R13: 0000000000000246 R14: ffff81045b1a9000 R15: ffff8107d6c85448
FS:  00002b037b8b8780(0000) GS:ffff81088e0f44c0(0000) knlGS:00000000f7aefb90
CS:  0010 DS: 0018 ES: 0018 CR0: 000000008005003b
CR2: 00000000bca34004 CR3: 00000007cbae1000 CR4: 00000000000006e0
Process ocfs2dc (pid: 5543, threadinfo ffff810c72776000, task ffff81087e14b0c0)
Stack:  ffffffff88c4e2b7 ffff810f805b58c8 ffffffff88c4e928 0000000000000003
 ffff810f805b5d20 0000000000000000 ffff810f805b58c0 ffff81045b1a9000
 ffffffff88c5690b 0000000000000000 ffff8108d31acc00 0000000000008000
Call Trace:
 <IRQ>  [<ffffffff88c4e2b7>] :ocfs2:ocfs2_wake_downconvert_thread+0x10/0x3d
 [<ffffffff88c4e928>] :ocfs2:ocfs2_cluster_unlock+0x2ff/0x30d
 [<ffffffff88c5690b>] :ocfs2:ocfs2_rw_unlock+0x127/0x197
 [<ffffffff800f4e54>] dio_complete+0x62/0x99
 [<ffffffff800f4f19>] dio_bio_end_aio+0x8e/0xbf
 [<ffffffff8830a588>] :dm_mod:clone_endio+0xbf/0xce
 [<ffffffff88564154>] :emcp:PowerPlatformTopIodone+0x74/0x210
 [<ffffffff88568612>] :emcp:PowerTopIodone+0x22/0x150
 [<ffffffff8856878e>] :emcp:PowerProcessTopIodonePirps+0x4e/0xa0
 [<ffffffff88568b83>] :emcp:PowerBottomIodoneNew+0x2a3/0x4d0
 [<ffffffff8002cfe9>] __end_that_request_first+0x23c/0x5bf
 [<ffffffff8008db72>] __activate_task+0x56/0x6d
 [<ffffffff88021fe5>] :scsi_mod:scsi_end_request+0x27/0xcd
 [<ffffffff880221d9>] :scsi_mod:scsi_io_completion+0x14e/0x324
 [<ffffffff88020c8b>] :scsi_mod:scsi_delete_timer+0x12/0x59
 [<ffffffff8804f802>] :sd_mod:sd_rw_intr+0x252/0x28c
 [<ffffffff8802246e>] :scsi_mod:scsi_device_unbusy+0x67/0x81
 [<ffffffff80037fd5>] blk_done_softirq+0x5f/0x6d
 [<ffffffff80012409>] __do_softirq+0x89/0x133
 [<ffffffff8005f2fc>] call_softirq+0x1c/0x28
 [<ffffffff8006dba8>] do_softirq+0x2c/0x85
 [<ffffffff8006da30>] do_IRQ+0xec/0xf5
 [<ffffffff8005e615>] ret_from_intr+0x0/0xa
 <EOI>  [<ffffffff88c55ccb>] :ocfs2:ocfs2_downconvert_thread+0xbf5/0xcdd
 [<ffffffff800a1ba4>] autoremove_wake_function+0x0/0x2e
 [<ffffffff88c550d6>] :ocfs2:ocfs2_downconvert_thread+0x0/0xcdd
 [<ffffffff800a198c>] keventd_create_kthread+0x0/0xc4
 [<ffffffff80032bdc>] kthread+0xfe/0x132
 [<ffffffff8005efb1>] child_rip+0xa/0x11
 [<ffffffff800a198c>] keventd_create_kthread+0x0/0xc4
 [<ffffffff80226577>] pci_mmcfg_read+0x0/0x92
 [<ffffffff80032ade>] kthread+0x0/0x132
 [<ffffffff8005efa7>] child_rip+0x0/0x11


Code: 7e f9 e9 7f fe ff ff f3 90 83 3f 00 7e f9 e9 f9 fe ff ff f3