System unresponsive after "ips <PCIADDR>: Resetting controller." message

Issue

• System hangs and doesn't respond after printing the following kernel message.

ips 0000:03:01.0: Resetting controller.

• System crashes with the following messages in enabling NMI Watchdog.

ips 0000:03:01.0: Resetting controller.
BUG: NMI Watchdog detected LOCKUP on CPU1, eip c061d538, registers:
Modules linked in: nfs fscache nfs_acl nls_utf8 cifs ipv6 xfrm_nalgo crypto_api autofs4 lockd sunrpc ip_conntrack_netbios_ns ip_conntrack nfnetlink ipt_LOG xt_tcpudp iptable_filter ip_tables x_tables dm_multipath scsi_dh video backlight sbs power_meter hwmon i2c_ec dell_wmi wmi button battery asus_acpi ac lp st serio_raw i2c_i801 i2c_core floppy e752x_edac edac_mc pcspkr ide_cd cdrom sg parport_pc tg3 parport dm_raid45 dm_message dm_region_hash dm_mem_cache dm_snapshot dm_zero dm_mirror dm_log dm_mod ata_piix libata ips aic79xx scsi_transport_spi sd_mod scsi_mod ext3 jbd uhci_hcd ohci_hcd ehci_hcd
CPU:    1
EIP:    0060:[<c061d538>]    Not tainted VLI
EFLAGS: 00000082   (2.6.18-194.8.1.el5PAE #1) 
EIP is at _spin_lock+0x7/0xf
eax: f7f7d828   ebx: e3ce2680   ecx: c994b7a4   edx: c994b8a0
esi: c99fe000   edi: f7f7d800   ebp: c994b7a4   esp: c9993e74
ds: 007b   es: 007b   ss: 0068
Process kjournald (pid: 1639, ti=c9993000 task=f79b4000 task.ti=c9993000)
Stack: f88661f6 c9a4fbe4 c994b7a4 c9b4ad40 c9b4fd80 c9b4fe20 c04e039a c994b7a4 
       c04e131c c9b4fd80 f89118fc 00000001 00000001 00000002 c980e044 c044f77e 
       00000000 00097739 c98f093c c9b4fd80 c9b183e8 c9993f14 c9801000 f890fc7b 
Call Trace:
 [<f88661f6>] scsi_request_fn+0x153/0x2f9 [scsi_mod]
 [<c04e039a>] __generic_unplug_device+0x1d/0x1f
 [<c04e131c>] generic_unplug_device+0x1f/0x2c
 [<f89118fc>] dm_table_unplug_all+0x2d/0x61 [dm_mod]
 [<c044f77e>] delayacct_end+0x58/0x7a
 [<f890fc7b>] dm_unplug_all+0x17/0x21 [dm_mod]
 [<c04e1979>] blk_backing_dev_unplug+0x2f/0x32
 [<c047746e>] sync_buffer+0x2b/0x33
 [<c061c6cd>] __wait_on_bit+0x33/0x58
 [<c0477443>] sync_buffer+0x0/0x33
 [<c0477443>] sync_buffer+0x0/0x33
 [<c061c754>] out_of_line_wait_on_bit+0x62/0x6a
 [<c04364a0>] wake_bit_function+0x0/0x3c
 [<c04773f0>] __wait_on_buffer+0x1c/0x1f
 [<f8854422>] journal_commit_transaction+0x4be/0xeec [jbd]
 [<c042da95>] lock_timer_base+0x15/0x2f
 [<c042db14>] try_to_del_timer_sync+0x65/0x6c
 [<f8857c11>] kjournald+0xa1/0x1c2 [jbd]
 [<c0436473>] autoremove_wake_function+0x0/0x2d
 [<f8857b70>] kjournald+0x0/0x1c2 [jbd]
 [<c04363af>] kthread+0xc0/0xed
 [<c04362ef>] kthread+0x0/0xed
 [<c0405c53>] kernel_thread_helper+0x7/0x10
 =======================
Code: 89 c8 c3 89 c2 f0 81 28 00 00 00 01 0f 94 c0 84 c0 b9 01 00 00 00 75 09 f0 81 02 00 00 00 01 30 c9 89 c8 c3 f0 fe 08 79 09 f3 90 <80> 38 00 7e f9 eb f2 c3 f0 81 28 00 00 00 01 74 05 e8 2a df ff