Hi,
I got same result in VMware Workstation environment.
At least in my environment, INTX toggle check is not work with VMware
E1000 Ethernet.
Please try attached patch.

2014-10-17 3:04 GMT+09:00 Raghav K <rghvk@outlook.com>:
> Hey,
> I observe continuous burst of I/O Errors, as indicated below, with the testpmd application with DPDK 1.7.1.This seems to originate from eal_intr_process_interrupts() function. I seemed to have setup the DPDK prerequisites alright.
> Another recent post seemed to suggest moving back to 1.7.0, however I would like to persist with 1.7.1.
> Any help/pointers in resolving this would be greatly appreciated.
> Much thanks,Raghav
> root@sys6-vm6:/home/rghv/dpdk/dpdk-1.7.1/x86_64-native-linuxapp-gcc/app# ./testpmd -c 0xf -n3 -- -i --nb-cores=3 --nb-ports=2
> EAL: Error reading from file descriptor 21: Input/output errorEAL: Error reading from file descriptor 21: Input/output errorEAL: Error reading from file descriptor 21: Input/output errorEAL: Error reading from file descriptor 21: Input/output errorEAL: Error reading from file descriptor 21: Input/output errorEAL: Error reading from file descriptor 21: Input/output errorEAL: Error reading from file descriptor 21: Input/output errorEAL: Error reading from file descriptor 21: Input/output errorEAL: Error reading from file descriptor 21: Input/output errorEAL: Error reading from file descriptor 21: Input/output errorEAL: Error reading from file descriptor 21: Input/output errorEAL: Error reading from file descriptor 21: Input/output errorEAL: Error reading from file descriptor 21: Input/output errorEAL: Error reading from file descriptor 21: Input/output errorEAL: Error reading from file descriptor 21: Input/output errorEAL: Error reading from file descriptor 21: Input/output error
> ----
> root@sys6-vm6:/home/rghv/dpdk/dpdk-1.7.1# ./tools/dpdk_nic_bind.py --status
> Network devices using DPDK-compatible driver============================================0000:02:01.0 '82545EM Gigabit Ethernet Controller (Copper)' drv=igb_uio unused=e10000000:02:02.0 '82545EM Gigabit Ethernet Controller (Copper)' drv=igb_uio unused=e1000
> Network devices using kernel driver===================================0000:02:00.0 '82545EM Gigabit Ethernet Controller (Copper)' if=eth0 drv=e1000 unused=igb_uio *Active*0000:02:03.0 '82545EM Gigabit Ethernet Controller (Copper)' if=eth3 drv=e1000 unused=igb_uio 0000:02:05.0 '82545EM Gigabit Ethernet Controller (Copper)' if=eth4 drv=e1000 unused=igb_uio 0000:02:06.0 '82545EM Gigabit Ethernet Controller (Copper)' if=eth5 drv=e1000 unused=igb_uio
> Other network devices=====================<none>