Redhat disabling network interface - IRQ issue

Hi.

I'm having problems on multiple Red Hat VM's (on esxi) whereby the network interface IRQ is disabled by the OS. This is the error from dmesg:

        command: Write(10): 2a 00 03 42 3f e0 00 00 08 00
mptscsih: ioc0: task abort: SUCCESS (sc=ffff81018b45c680)
irq 67: nobody cared (try booting with the "irqpoll" option)

Call Trace:
 <IRQ>  [<ffffffff800bc899>] __report_bad_irq+0x30/0x7d
 [<ffffffff800bcacc>] note_interrupt+0x1e6/0x227
 [<ffffffff800bbfc8>] __do_IRQ+0xbd/0x103
 [<ffffffff8006da2b>] do_IRQ+0xe7/0xf5
 [<ffffffff8005e615>] ret_from_intr+0x0/0xa
 [<ffffffff800123d1>] __do_softirq+0x51/0x133
 [<ffffffff8005f2fc>] call_softirq+0x1c/0x28
 [<ffffffff8006dba8>] do_softirq+0x2c/0x85
 [<ffffffff8005ec8e>] apic_timer_interrupt+0x66/0x6c
 <EOI>  [<ffffffff882b5d48>] :e1000:e1000_watchdog_task+0x574/0x5d8
 [<ffffffff882b57d4>] :e1000:e1000_watchdog_task+0x0/0x5d8
 [<ffffffff8004dc37>] run_workqueue+0x94/0xe4
 [<ffffffff8004a472>] worker_thread+0x0/0x122
 [<ffffffff8004a562>] worker_thread+0xf0/0x122
 [<ffffffff8008e16d>] default_wake_function+0x0/0xe
 [<ffffffff80032bdc>] kthread+0xfe/0x132
 [<ffffffff8005efb1>] child_rip+0xa/0x11
 [<ffffffff80032ade>] kthread+0x0/0x132
 [<ffffffff8005efa7>] child_rip+0x0/0x11

handlers:
[<ffffffff882b3d7b>] (e1000_intr+0x0/0x12c [e1000])
Disabling IRQ #67

and the interrupts file shows IRQ 67 as eth0.:

]# cat /proc/interrupts
           CPU0       CPU1
  0: 4096645066          0    IO-APIC-edge  timer
  1:       1921         34    IO-APIC-edge  i8042
  6:          5          0    IO-APIC-edge  floppy
  7:          0          0    IO-APIC-edge  parport0
  8:          0          0    IO-APIC-edge  rtc
  9:          0          0   IO-APIC-level  acpi
 12:       1914         99    IO-APIC-edge  i8042
 15:  113323952    1586635    IO-APIC-edge  ide1
 51:   78742357    2596624   IO-APIC-level  ioc0
 59:          0          0   IO-APIC-level  vmci
 67:   24247712   31753991   IO-APIC-level  eth0
NMI:          0          0
LOC: 4198621982 4198586609
ERR:          0
MIS:          0

Any ideas how I can troubleshoot this? We experienced a network outage today, and once it came back, we noticed that the NICS on around 5-6 RH VM's had been disabled with exactly the same errors given above. Red Hat v5.5, ESXi v 4.

Any ideas on how to troubleshoot this would be much appreciated.