NMI watchdog panic when modprobing qla2xxx driver on Red Hat Enterprise Linux 5 system with QEM3472 QLogic card.

NMI Watchdog detected LOCKUP on CPU 13
CPU 13
Modules linked in: qla2xxx scsi_transport_fc igb 8021q dca amd64_edac_mod edac_mc snd_hda_intel snd_seq_dummy snd_seq_oss snd_seq_midi_event snd_seq snd_seq_device snd_pcm_oss snd_mixer_oss snd_pcm snd_timer snd_page_alloc snd_hwdep snd soundcore ahci libata i2c_nforce2 nvidiafb i2c_algo_bit i2c_core dm_snapshot dm_zero dm_mirror dm_log ext3 jbd dm_mod vfat fat edd nls_utf8 sd_mod sg joydev usb_storage sr_mod scsi_mod ide_cd cdrom ohci_hcd uhci_hcd ehci_hcd
Pid: 7234, comm: modprobe Not tainted 2.6.18-194.8.1.el5 #1
RIP: 0010:[<ffffffff8000c9f4>]  [<ffffffff8000c9f4>] __delay+0x6/0x10
RSP: 0000:ffff8120589f9ca0  EFLAGS: 00000097
RAX: 0000000000000bbb RBX: ffffc2000002e000 RCX: 00000000265aa9fe
RDX: 000000000000010a RSI: 0000000000000046 RDI: 0000000000002ede
RBP: 00000000000caab0 R08: 0000000000000002 R09: ffff8120589f9c6c
R10: 0000000000000004 R11: ffffffff80225929 R12: ffff811857a8c4f8
R13: 0000000000000246 R14: ffffc2000002e000 R15: ffff811857a8c000
FS:  00002b4e3d4f86e0(0000) GS:ffff81107c28a9c0(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 00002b4e3d62700f CR3: 00000018589df000 CR4: 00000000000006e0
Process modprobe (pid: 7234, threadinfo ffff8120589f8000, task ffff81205fe7f7a0)
Stack:  ffffffff884255f4 0000000000000292 ffffffff88426de8 ffff000000000292
 ffff811857a8c4f8 ffff811857a8c4f8 0000000000000000 0000000000000009
 ffffffff8842487f 00000000000010d0 ffffffff8002221b ffff811857a8e710
Call Trace:
 [<ffffffff884255f4>] :qla2xxx:qla24xx_reset_chip+0xde/0x151
 [<ffffffff88426de8>] :qla2xxx:qla24xx_pci_config+0x1a6/0x1b1
 [<ffffffff8842487f>] :qla2xxx:qla2x00_initialize_adapter+0xec/0x404
 [<ffffffff8002221b>] dma_alloc_coherent+0x76/0x1ca
 [<ffffffff88420b91>] :qla2xxx:qla2x00_probe_one+0xe36/0x11de
 [<ffffffff8009d39a>] call_usermodehelper_keys+0xe3/0xf8
 [<ffffffff8009d3af>] __call_usermodehelper+0x0/0x4f
 [<ffffffff8015ddaf>] pci_device_probe+0x104/0x184
 [<ffffffff801c7c2e>] driver_probe_device+0x52/0xaa
 [<ffffffff801c7d5d>] __driver_attach+0x65/0xb6
 [<ffffffff801c7cf8>] __driver_attach+0x0/0xb6
 [<ffffffff801c7535>] bus_for_each_dev+0x43/0x6e
 [<ffffffff801c7171>] bus_add_driver+0x76/0x110
 [<ffffffff8015e0cb>] __pci_register_driver+0x51/0xa6
 [<ffffffff883010df>] :qla2xxx:qla2x00_module_init+0xdf/0x106
 [<ffffffff800a6e59>] sys_init_module+0xaf/0x1f2
 [<ffffffff8005d116>] system_call+0x7e/0x83


Code: 0f 31 29 c8 48 39 f8 72 f5 c3 41 54 83 3d 51 b6 3e 00 00 49
Kernel panic - not syncing: nmi watchdog
 BUG: warning at kernel/panic.c:137/panic() (Not tainted)