CentOS 6.3 SuperMicro SR-IOV Crash

System Config is SuperMicro Motherboard X9DR3-F, 3ware 9750SE-8i, CentOS 6.3

Getting this crash/hardlockup when intel_iommu=on is passed on the kernel. I don't get this when crash when I set intel_iommu=off and pci=nomsi.

sd 6:0:0:0: WARNING: (0x06:0x002C): Command (0x2a) timed out, resetting card.
Kernel panic - not syncing: Watchdog detected hard LOCKUP on cpu 6
Pid: 0, comm: swapper Not tainted 2.6.32-279.9.1.el6.x86_64 #1
Call Trace:
   [] ? panic+0xa0/0x168
 [] ? watchdog_overflow_callback+0xcd/0xd0
 [] ? __perf_event_overflow+0x9d/0x230
 [] ? perf_event_overflow+0x14/0x20
 [] ? intel_pmu_handle_irq+0x336/0x550
 [] ? kprobe_exceptions_notify+0x16/0x430
 [] ? perf_event_nmi_handler+0x39/0xb0
 [] ? notifier_call_chain+0x55/0x80
 [] ? atomic_notifier_call_chain+0x1a/0x20
 [] ? notify_die+0x2e/0x30
 [] ? do_nmi+0x173/0x2b0
 [] ? nmi+0x20/0x30
 [] ? intel_unmap_page+0x0/0x180
 [] ? _spin_lock_irqsave+0x2f/0x40
 <>    [] ? add_unmap+0x2b/0xe0
 [] ? intel_unmap_page+0xca/0x180
 [] ? igb_poll+0x4d1/0xb00 [igb]
 [] ? native_smp_send_reschedule+0x49/0x60
 [] ? net_rx_action+0x103/0x2f0
 [] ? __do_softirq+0xc1/0x1e0
 [] ? handle_IRQ_event+0x60/0x170
 [] ? call_softirq+0x1c/0x30
 [] ? do_softirq+0x65/0xa0
 [] ? irq_exit+0x85/0x90
 [] ? do_IRQ+0x75/0xf0
 [] ? ret_from_intr+0x0/0x11
   [] ? intel_idle+0xde/0x170
 [] ? intel_idle+0xc1/0x170
 [] ? cpuidle_idle_call+0xa7/0x140
 [] ? cpu_idle+0xb6/0x110
 [] ? start_secondary+0x22a/0x26d
Initializing cgroup subsys cpuset
Initializing cgroup subsys cpu
Linux version 2.6.32-279.9.1.el6.x86_64 (mockbuild@c6b9.bsys.dev.centos.org) (gcc version 4.4.6 20120305 (Red Hat 4.4.6-4) (GCC) ) #1 SMP Tue Sep 25 21:43:11 UTC 2012
Command line: ro root=UUID=09b1f254-2cc0-4654-9875-6c91b18bab17 rd_NO_LUKS rd_NO_LVM LANG=en_US.UTF-8 rd_NO_MD SYSFONT=latarcyrheb-sun16 KEYBOARDTYPE=pc KEYTABLE=us rd_NO_DM intel_iommu=on console=tty0 console=ttyS1,115200n8 irqpoll nr_cpus=1 reset_devices cgroup_disable=memory mce=off  memmap=exactmap memmap=553K@64K memmap=135619K@49705K elfcorehdr=185324K memmap=64K$0K memmap=23K$617K memmap=128K$896K memmap=1120K#2069328K memmap=12288K$2070448K memmap=496K#2082736K memmap=612K$2083232K memmap=28K#2083844K memmap=208K$2083872K memmap=32K#2084080K memmap=164K$2084112K memmap=4684K#2084276K memmap=262144K$2097152K memmap=144K$4174960K memmap=16384K$4177920K
KERNEL supported cpus:
  Intel GenuineIntel
  AMD AuthenticAMD
  Centaur CentaurHauls
BIOS-provided physical RAM map:
 BIOS-e820: 0000000000000100 - 000000000009a400 (usable)
 BIOS-e820: 000000000009a400 - 00000000000a0000 (reserved)
 BIOS-e820: 00000000000e0000 - 0000000000100000 (reserved)
 BIOS-e820: 0000000000100000 - 000000007e4d4000 (usable)
 BIOS-e820: 000000007e4d4000 - 000000007e5ec000 (ACPI NVS)
 BIOS-e820: 000000007e5ec000 - 000000007f1ec000 (reserved)
 BIOS-e820: 000000007f1ec000 - 000000007f268000 (ACPI data)
 BIOS-e820: 000000007f268000 - 000000007f301000 (reserved)
 BIOS-e820: 000000007f301000 - 000000007f308000 (ACPI NVS)
 BIOS-e820: 000000007f308000 - 000000007f33c000 (reserved)
 BIOS-e820: 000000007f33c000 - 000000007f344000 (ACPI NVS)
 BIOS-e820: 000000007f344000 - 000000007f36d000 (reserved)
 BIOS-e820: 000000007f36d000 - 000000007f800000 (ACPI NVS)
 BIOS-e820: 0000000080000000 - 0000000090000000 (reserved)
 BIOS-e820: 00000000fed1c000 - 00000000fed40000 (reserved)
 BIOS-e820: 00000000ff000000 - 0000000100000000 (reserved)
 BIOS-e820: 0000000100000000 - 0000001080000000 (usable)
last_pfn = 0x1080000 max_arch_pfn = 0x400000000
user-defined physical RAM map:
 user: 0000000000000000 - 0000000000010000 (reserved)
 user: 0000000000010000 - 000000000009a400 (usable)
 user: 000000000009a400 - 00000000000a0000 (reserved)
 user: 00000000000e0000 - 0000000000100000 (reserved)
 user: 000000000308a400 - 000000000b4fb000 (usable)
 user: 000000007e4d4000 - 000000007e5ec000 (ACPI data)
 user: 000000007e5ec000 - 000000007f1ec000 (reserved)
 user: 000000007f1ec000 - 000000007f268000 (ACPI data)
 user: 000000007f268000 - 000000007f301000 (reserved)
 user: 000000007f301000 - 000000007f308000 (ACPI data)
 user: 000000007f308000 - 000000007f33c000 (reserved)
 user: 000000007f33c000 - 000000007f344000 (ACPI data)
 user: 000000007f344000 - 000000007f36d000 (reserved)
 user: 000000007f36d000 - 000000007f800000 (ACPI data)
 user: 0000000080000000 - 0000000090000000 (reserved)
 user: 00000000fed1c000 - 00000000fed40000 (reserved)
 user: 00000000ff000000 - 0000000100000000 (reserved)
DMI 2.7 present.
SMBIOS version 2.7 @ 0xF0480
AMI BIOS detected: BIOS may corrupt low RAM, working around it.
last_pfn = 0xb4fb max_arch_pfn = 0x400000000
x86 PAT enabled: cpu 0, old 0x7010600070106, new 0x7010600070106
x2apic enabled by BIOS, switching to x2apic ops
Using GB pages for direct mapping
init_memory_mapping: 0000000000000000-000000000b4fb000
RAMDISK: 0b10e000 - 0b4ee36e
ACPI: RSDP 00000000000f0450 00024 (v02 ALASKA)
ACPI: XSDT 000000007f1ec090 0009C (v01 ALASKA    A M I 01072009 AMI  00010013)
ACPI: FACP 000000007f1f6940 000F4 (v04 ALASKA    A M I 01072009 AMI  00010013)
ACPI: DSDT 000000007f1ec1b8 0A788 (v02 ALASKA    A M I 00000015 INTL 20051117)
ACPI: FACS 000000007f341f80 00040
ACPI: APIC 000000007f1f6a38 001B4 (v03 ALASKA    A M I 01072009 AMI
ACPI: SRAT 000000007f1f6bf0 00430 (v01 A M I  AMI SRAT 00000001 AMI. 00000000)
ACPI: SLIT 000000007f1f7020 00030 (v01 A M I  AMI SLIT 00000000 AMI. 00000000)
ACPI: HPET 000000007f1f7050 00038 (v01 ALASKA    A M I 01072009 AMI. 00000005)
ACPI: SPMI 000000007f1f7088 00040 (v05 A M I   OEMSPMI 00000000 AMI. 00000000)
ACPI: SSDT 000000007f1f70c8 70104 (v02  INTEL    CpuPm 00004000 INTL 20051117)
ACPI: SPCR 000000007f2671d0 00050 (v01  A M I   APTIO4 01072009 AMI. 00000005)
ACPI: BGRT 000000007f267220 00038 (v00 ALASKA    A M I 01072009 AMI  00010013)
ACPI: MCFG 000000007f267258 0003C (v01 ALASKA    A M I 01072009 MSFT 00000097)
ACPI: DMAR 000000007f267298 00170 (v01 A M I   OEMDMAR 00000001 INTL 00000001)
ACPI: EINJ 000000007f267408 00130 (v01    AMI AMI EINJ 00000000      00000000)
ACPI: ERST 000000007f267538 00210 (v01  AMIER AMI ERST 00000000      00000000)
ACPI: HEST 000000007f267748 000A8 (v01    AMI AMI HEST 00000000      00000000)
ACPI: BERT 000000007f2677f0 00030 (v01    AMI AMI BERT 00000000      00000000)
Setting APIC routing to cluster x2apic.
SRAT: PXM 0 -> APIC 0 -> Node 0
SRAT: PXM 0 -> APIC 1 -> Node 0
SRAT: PXM 0 -> APIC 2 -> Node 0
SRAT: PXM 0 -> APIC 3 -> Node 0
SRAT: PXM 0 -> APIC 4 -> Node 0
SRAT: PXM 0 -> APIC 5 -> Node 0
SRAT: PXM 0 -> APIC 6 -> Node 0
SRAT: PXM 0 -> APIC 7 -> Node 0
SRAT: PXM 0 -> APIC 8 -> Node 0
SRAT: PXM 0 -> APIC 9 -> Node 0
SRAT: PXM 0 -> APIC 10 -> Node 0
SRAT: PXM 0 -> APIC 11 -> Node 0
SRAT: PXM 1 -> APIC 32 -> Node 1
SRAT: PXM 1 -> APIC 33 -> Node 1
SRAT: PXM 1 -> APIC 34 -> Node 1
SRAT: PXM 1 -> APIC 35 -> Node 1
SRAT: PXM 1 -> APIC 36 -> Node 1
SRAT: PXM 1 -> APIC 37 -> Node 1
SRAT: PXM 1 -> APIC 38 -> Node 1
SRAT: PXM 1 -> APIC 39 -> Node 1
SRAT: PXM 1 -> APIC 40 -> Node 1
SRAT: PXM 1 -> APIC 41 -> Node 1
SRAT: PXM 1 -> APIC 42 -> Node 1
SRAT: PXM 1 -> APIC 43 -> Node 1
SRAT: Node 0 PXM 0 0-80000000
SRAT: Node 0 PXM 0 100000000-880000000
SRAT: Node 1 PXM 1 880000000-1080000000
Bootmem setup node 0 0000000000000000-000000000b4fb000
  NODE_DATA [0000000000011040 - 000000000004503f]
  bootmap [0000000000046000 -  000000000004769f] pages 2
(8 early reservations) ==> bootmem [0000000000 - 000b4fb000]
  #0 [0000000000 - 0000001000]   BIOS data page ==> [0000000000 - 0000001000]
  #1 [0000006000 - 0000008000]       TRAMPOLINE ==> [0000006000 - 0000008000]
  #2 [0004000000 - 0005012024]    TEXT DATA BSS ==> [0004000000 - 0005012024]
  #3 [000b10e000 - 000b4ee36e]          RAMDISK ==> [000b10e000 - 000b4ee36e]
  #4 [000009a400 - 0000100000]    BIOS reserved ==> [000009a400 - 0000100000]
  #5 [0005013000 - 0005013368]              BRK ==> [0005013000 - 0005013368]
  #6 [0000010000 - 0000011000]          PGTABLE ==> [0000010000 - 0000011000]
  #7 [0000011000 - 0000011030]        ACPI SLIT ==> [0000011000 - 0000011030]
found SMP MP-table at [ffff8800000fcee0] fcee0
Zone PFN ranges:
  DMA      0x00000010 -> 0x00001000
  DMA32    0x00001000 -> 0x00100000
  Normal   0x00100000 -> 0x00100000
Movable zone start PFN for each node
early_node_map[2] active PFN ranges
    0: 0x00000010 -> 0x0000009a
    0: 0x0000308b -> 0x0000b4fb
ACPI: PM-Timer IO Port: 0x408
Setting APIC routing to cluster x2apic.
ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled)
ACPI: NR_CPUS/possible_cpus limit of 1 almost reached. Keeping one slot for boot cpu.  Processor 0/0x0 ignored.
ACPI: LAPIC (acpi_id[0x02] lapic_id[0x02] enabled)
ACPI: NR_CPUS/possible_cpus limit of 1 almost reached. Keeping one slot for boot cpu.  Processor 1/0x2 ignored.
ACPI: LAPIC (acpi_id[0x04] lapic_id[0x04] enabled)
ACPI: NR_CPUS/possible_cpus limit of 1 almost reached. Keeping one slot for boot cpu.  Processor 2/0x4 ignored.
ACPI: LAPIC (acpi_id[0x06] lapic_id[0x06] enabled)
ACPI: NR_CPUS/possible_cpus limit of 1 almost reached. Keeping one slot for boot cpu.  Processor 3/0x6 ignored.
ACPI: LAPIC (acpi_id[0x08] lapic_id[0x08] enabled)
ACPI: NR_CPUS/possible_cpus limit of 1 almost reached. Keeping one slot for boot cpu.  Processor 4/0x8 ignored.
ACPI: LAPIC (acpi_id[0x0a] lapic_id[0x0a] enabled)
ACPI: NR_CPUS/possible_cpus limit of 1 almost reached. Keeping one slot for boot cpu.  Processor 5/0xa ignored.
ACPI: LAPIC (acpi_id[0x0c] lapic_id[0x20] enabled)
ACPI: LAPIC (acpi_id[0x0e] lapic_id[0x22] enabled)
ACPI: NR_CPUS/possible_cpus limit of 1 reached.  Processor 7/0x22 ignored.
ACPI: LAPIC (acpi_id[0x10] lapic_id[0x24] enabled)
ACPI: NR_CPUS/possible_cpus limit of 1 reached.  Processor 8/0x24 ignored.
ACPI: LAPIC (acpi_id[0x12] lapic_id[0x26] enabled)
ACPI: NR_CPUS/possible_cpus limit of 1 reached.  Processor 9/0x26 ignored.
ACPI: LAPIC (acpi_id[0x14] lapic_id[0x28] enabled)
ACPI: NR_CPUS/possible_cpus limit of 1 reached.  Processor 10/0x28 ignored.
ACPI: LAPIC (acpi_id[0x16] lapic_id[0x2a] enabled)
ACPI: NR_CPUS/possible_cpus limit of 1 reached.  Processor 11/0x2a ignored.
ACPI: LAPIC (acpi_id[0x01] lapic_id[0x01] enabled)
ACPI: NR_CPUS/possible_cpus limit of 1 reached.  Processor 12/0x1 ignored.
ACPI: LAPIC (acpi_id[0x03] lapic_id[0x03] enabled)
ACPI: NR_CPUS/possible_cpus limit of 1 reached.  Processor 13/0x3 ignored.
ACPI: LAPIC (acpi_id[0x05] lapic_id[0x05] enabled)
ACPI: NR_CPUS/possible_cpus limit of 1 reached.  Processor 14/0x5 ignored.
ACPI: LAPIC (acpi_id[0x07] lapic_id[0x07] enabled)
ACPI: NR_CPUS/possible_cpus limit of 1 reached.  Processor 15/0x7 ignored.
ACPI: LAPIC (acpi_id[0x09] lapic_id[0x09] enabled)
ACPI: NR_CPUS/possible_cpus limit of 1 reached.  Processor 16/0x9 ignored.
ACPI: LAPIC (acpi_id[0x0b] lapic_id[0x0b] enabled)
ACPI: NR_CPUS/possible_cpus limit of 1 reached.  Processor 17/0xb ignorePUS/possible_cpus limit of 1 reached.  Processor 18/0x21 ignored.
ACPI: LAPIC (acpi_id[0x0f] lapic_id[0x23] enabled)
ACPI: NR_CPUS/possible_cpus limit of 1 reached.  Processor 19/0x23 ignored.
ACPI: LAPIC (acpi_id[0x11] lapic_id[0x25] enabled)
ACPI: NR_CPUS/possible_cpus limit of 1 reached.  Processor 20/0x25 ignored.
ACPI: LAPIC (acpi_id[0x13] lapic_id[0x27] enabled)
ACPI: NR_CPUS/possible_cpus limit of 1 reached.  Processor 21/0x27 ignored.
ACPI: LAPIC (acpi_id[0x15] lapic_id[0x29] enabled)
ACPI: NR_CPUS/possible_cpus limit of 1 reached.  Processor 22/0x29 ignored.
ACPI: LAPIC (acpi_id[0x17] lapic_id[0x2b] enabled)
ACPI: NR_CPUS/possible_cpus limit of 1 reached.  Processor 23/0x2b ignored.
ACPI: LAPIC_NMI (acpi_id[0x00] high edge lint[0x1])
ACPI: LAPIC_NMI (acpi_id[0x02] high edge lint[0x1])
ACPI: LAPIC_NMI (acpi_id[0x04] high edge lint[0x1])
ACPI: LAPIC_NMI (acpi_id[0x06] high edge lint[0x1])
ACPI: LAPIC_NMI (acpi_id[0x08] high edge lint[0x1])
ACPI: LAPIC_NMI (acpi_id[0x0a] high edge lint[0x1])
ACPI: LAPIC_NMI (acpi_id[0x0c] high edge lint[0x1])
ACPI: LAPIC_NMI (acpi_id[0x0e] high edge lint[0x1])
ACPI: LAPIC_NMI (acpi_id[0x10] high edge lint[0x1])
ACPI: LAPIC_NMI (acpi_id[0x12] high edge lint[0x1])
ACPI: LAPIC_NMI (acpi_id[0x14] high edge lint[0x1])
ACPI: LAPIC_NMI (acpi_id[0x16] high edge lint[0x1])
ACPI: LAPIC_NMI (acpi_id[0x01] high edge lint[0x1])
ACPI: LAPIC_NMI (acpi_id[0x03] high edge lint[0x1])
ACPI: LAPIC_NMI (acpi_id[0x05] high edge lint[0x1])
ACPI: LAPIC_NMI (acpi_id[0x07] high edge lint[0x1])
ACPI: LAPIC_NMI (acpi_id[0x09] high edge lint[0x1])
ACPI: LAPIC_NMI (acpi_id[0x0b] high edge lint[0x1])
ACPI: LAPIC_NMI (acpi_id[0x0d] high edge lint[0x1])
ACPI: LAPIC_NMI (acpi_id[0x0f] high edge lint[0x1])
ACPI: LAPIC_NMI (acpi_id[0x11] high edge lint[0x1])
ACPI: LAPIC_NMI (acpi_id[0x13] high edge lint[0x1])
ACPI: LAPIC_NMI (acpi_id[0x15] high edge lint[0x1])
ACPI: LAPIC_NMI (acpi_id[0x17] high edge lint[0x1])
ACPI: IOAPIC (id[0x00] address[0xfec00000] gsi_base[0])
IOAPIC[0]: apic_id 0, version 32, address 0xfec00000, GSI 0-23
ACPI: IOAPIC (id[0x02] address[0xfec01000] gsi_base[24])
IOAPIC[1]: apic_id 2, version 32, address 0xfec01000, GSI 24-47
ACPI: IOAPIC (id[0x03] address[0xfec40000] gsi_base[48])
IOAPIC[2]: apic_id 3, version 32, address 0xfec40000, GSI 48-71
ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
Using ACPI (MADT) for SMP configuration information
ACPI: HPET id: 0x8086a701 base: 0xfed00000
24 Processors exceeds NR_CPUS limit of 1
SMP: Allowing 1 CPUs, 0 hotplug CPUs
PM: Registered nosave memory: 000000000009a000 - 000000000009b000
PM: Registered nosave memory: 000000000009b000 - 00000000000a0000
PM: Registered nosave memory: 00000000000a0000 - 00000000000e0000
PM: Registered nosave memory: 00000000000e0000 - 0000000000100000
PM: Registered nosave memory: 0000000000100000 - 000000000308b000
Allocating PCI resources starting at b4fb000 (gap: b4fb000:72fd9000)
Booting paravirtualized kernel on bare hardware
NR_CPUS:4096 nr_cpumask_bits:1 nr_cpu_ids:1 nr_node_ids:2
PERCPU: Embedded 31 pages/cpu @ffff880003200000 s94424 r8192 d24360 u2097152
pcpu-alloc: s94424 r8192 d24360 u2097152 alloc=1*2097152
pcpu-alloc: [0] 0 
Built 1 zonelists in Node order, mobility grouping on.  Total pages: 33408
Policy zone: DMA32
Kernel command line: ro root=UUID=09b1f254-2cc0-4654-9875-6c91b18bab17 rd_NO_LUKS rd_NO_LVM LANG=en_US.UTF-8 rd_NO_MD SYSFONT=latarcyrheb-sun16 KEYBOARDTYPE=pc KEYTABLE=us rd_NO_DM intel_iommu=on console=tty0 console=ttyS1,115200n8 irqpoll nr_cpus=1 reset_devices cgroup_disable=memory mce=off  memmap=exactmap memmap=553K@64K memmap=135619K@49705K elfcorehdr=185324K memmap=64K$0K memmap=23K$617K memmap=128K$896K memmap=1120K#2069328K memmap=12288K$2070448K memmap=496K#2082736K memmap=612K$2083232K memmap=28K#2083844K memmap=208K$2083872K memmap=32K#2084080K memmap=164K$2084112K memmap=4684K#2084276K memmap=262144K$2097152K memmap=144K$4174960K memmap=16384K$4177920K
Intel-IOMMU: enabled
Misrouted IRQ fixup and polling support enabled
This may significantly impact system performance
Disabling memory control group subsystem
PID hash table entries: 1024 (order: 1, 8192 bytes)
xsave/xrstor: enabled xstate_bv 0x7, cntxt size 0x340
Checking aperture...
No AGP bridge found
Queued invalidation will be enabled to support x2apic and Intr-remapping.
Memory: 111036k/185324k available (5153k kernel code, 49156k absent, 25132k reserved, 7165k data, 1260k init)
Hierarchical RCU implementation.
NR_IRQS:33024 nr_irqs:256
Extended CMOS year: 2000
Spurious LAPIC timer interrupt on cpu 0
do_IRQ: 0.230 No irq handler for vector (irq -1)
do_IRQ: 0.197 No irq handler for vector (irq -1)
Console: colour VGA+ 80x25
console [tty0] enabled
console [ttyS1] enabled
Fast TSC calibration using PIT
Detected 2000.108 MHz processor.
Calibrating delay loop (skipped), value calculated using timer frequency.. 4000.21 BogoMIPS (lpj=2000108)
pid_max: default: 32768 minimum: 301
Security Framework initialized
SELinux:  Initializing.
Dentry cache hash table entries: 32768 (order: 6, 262144 bytes)
Inode-cache hash table entries: 16384 (order: 5, 131072 bytes)
Mount-cache hash table entries: 256
Initializing cgroup subsys ns
Initializing cgroup subsys cpuacct
Initializing cgroup subsys memory
Initializing cgroup subsys devices
Initializing cgroup subsys freezer
Initializing cgroup subsys net_cls
Initializing cgroup subsys blkio
Initializing cgroup subsys perf_event
Initializing cgroup subsys net_prio
CPU: Physical Processor ID: 1
CPU: Processor Core ID: 0
using mwait in idle threads.
SMP alternatives: switching to UP code
Freeing SMP alternatives: 34k freed
ACPI: Core revision 20090903
ftrace: converting mcount calls to 0f 1f 44 00 00
ftrace: allocating 21019 entries in 83 pages
DMAR: Host address width 46
DMAR: DRHD base: 0x000000fbffe000 flags: 0x0
IOMMU fbffe000: ver 1:0 cap d2078c106f0462 ecap f020fe
DMAR: DRHD base: 0x000000dfffc000 flags: 0x1
IOMMU dfffc000: ver 1:0 cap d2078c106f0462 ecap f020fe
DMAR: RMRR base: 0x0000007f285000 end: 0x0000007f2a1fff
DMAR: ATSR flags: 0x0
DMAR: RHSA base: 0x000000fbffe000 proximity domain: 0x1
DMAR: RHSA base: 0x000000dfffc000 proximity domain: 0x0
IOAPIC id 3 under DRHD base 0xfbffe000
IOAPIC id 0 under DRHD base 0xdfffc000
IOAPIC id 2 under DRHD base 0xdfffc000
HPET id 0 under DRHD base 0xdfffc000
Your BIOS has requested that x2apic be disabled.
This will leave your machine vulnerable to irq-injection attacks.
Use 'intremap=no_x2apic_optout' to override BIOS request.