[dpdk-dev] Error running dpdk app: cannot open /dev/uio

Malveeka Tewari malveeka at gmail.com
Tue Dec 2 22:43:43 CET 2014


Hi

I am trying to run the testpmd app as but I get the following errors:
EAL: VFIO could not be initialized
EAL: Cannot open /dev/uio0: No such file or directory
EAL: Error - exiting with code: 1
  Cause: Requested device 0000:07:00.0 cannot be used

lsmod shows that the uio module is installed.
Is there anything that's missing?

Thanks!
Malveeka



Output on trying to run testpmd

EAL: Detected 16 lcore(s)
*EAL:   cannot open VFIO container, error 2 (No such file or directory)*
*EAL: VFIO support could not be initialized*
EAL: Setting up memory...
EAL: Ask a virtual area of 0x200000 bytes
EAL: Virtual area found at 0x7fe66ac00000 (size = 0x200000)
EAL: Ask a virtual area of 0xffc00000 bytes
EAL: Virtual area found at 0x7fe56ae00000 (size = 0xffc00000)
EAL: Ask a virtual area of 0x200000 bytes
EAL: Virtual area found at 0x7fe56aa00000 (size = 0x200000)
EAL: Ask a virtual area of 0xfec00000 bytes
EAL: Virtual area found at 0x7fe46bc00000 (size = 0xfec00000)
EAL: Ask a virtual area of 0x400000 bytes
EAL: Virtual area found at 0x7fe46b600000 (size = 0x400000)
EAL: Ask a virtual area of 0x400000 bytes
EAL: Virtual area found at 0x7fe46b000000 (size = 0x400000)
EAL: Ask a virtual area of 0x400000 bytes
EAL: Virtual area found at 0x7fe46aa00000 (size = 0x400000)
EAL: Ask a virtual area of 0x400000 bytes
EAL: Virtual area found at 0x7fe46a400000 (size = 0x400000)
EAL: Ask a virtual area of 0x400000 bytes
EAL: Virtual area found at 0x7fe469e00000 (size = 0x400000)
EAL: Requesting 2048 pages of size 2MB from socket 0
EAL: Requesting 2048 pages of size 2MB from socket 1
EAL: TSC frequency is ~2266745 KHz
EAL: Master core 3 is ready (tid=6cedb800)
EAL: PCI device 0000:07:00.0 on NUMA socket -1
EAL:   probe driver: 8086:10fb rte_ixgbe_pmd


*EAL: Cannot open /dev/uio0: No such file or directoryEAL: Error - exiting
with code: 1  Cause: Requested device 0000:07:00.0 cannot be used*


More information about the dev mailing list