Re: [dpdk-dev] problem: Cannot allocate memzone for ethernet port data

["De Lara Guarch, Pablo" <pablo.de.lara.guarch@intel.com>]

Hi ,

> -----Original Message-----
> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of ChenXiaodong
> Sent: Wednesday, April 22, 2015 11:33 AM
> To: dev@dpdk.org
> Subject: [dpdk-dev] problem: Cannot allocate memzone for ethernet port
> data
> 
> Hi, every one
> 
> Is there any one who can help me ? I'm new to DPDK,  here is a problem that
> I don't know how to deal with. The program is running on an machine with
> two Intel  82576 NICs. One of the NICs is binded with the uio_pci_generic
> driver。1024 2M hugepages have been setup.
> 
> Any suggestion about the cause of the problem or solution to it will be
> appreciated!

Could you tell us what these commands return?

./tools/cpu_layout.py
cat /sys/devices/system/node/node0/hugepages/hugepages-2048kB/nr_hugepages
cat /sys/devices/system/node/node1/hugepages/hugepages-2048kB/nr_hugepages

(assuming you have 2 NUMA nodes)

Pablo
> 
> Here is the output of the program:
> 
> [root@test dpdk-2.0.0]#  build/app/testpmd -c ff -n 4 --socket-mem=1024
> EAL: Cannot read numa node link for lcore 0 - using physical package id
> instead
> EAL: Detected lcore 0 as core 0 on socket 1
> EAL: Cannot read numa node link for lcore 1 - using physical package id
> instead
> EAL: Detected lcore 1 as core 1 on socket 1
> EAL: Cannot read numa node link for lcore 2 - using physical package id
> instead
> EAL: Detected lcore 2 as core 2 on socket 1
> EAL: Cannot read numa node link for lcore 3 - using physical package id
> instead
> EAL: Detected lcore 3 as core 3 on socket 1
> EAL: Cannot read numa node link for lcore 4 - using physical package id
> instead
> EAL: Detected lcore 4 as core 0 on socket 1
> EAL: Cannot read numa node link for lcore 5 - using physical package id
> instead
> EAL: Detected lcore 5 as core 1 on socket 1
> EAL: Cannot read numa node link for lcore 6 - using physical package id
> instead
> EAL: Detected lcore 6 as core 2 on socket 1
> EAL: Cannot read numa node link for lcore 7 - using physical package id
> instead
> EAL: Detected lcore 7 as core 3 on socket 1
> EAL: Support maximum 128 logical core(s) by configuration.
> EAL: Detected 8 lcore(s)
> EAL: Setting up memory...
> EAL: Ask a virtual area of 0x8000000 bytes
> EAL: Virtual area found at 0x7f83fae00000 (size = 0x8000000)
> EAL: Ask a virtual area of 0x38000000 bytes
> EAL: Virtual area found at 0x7f83c2c00000 (size = 0x38000000)
> EAL: Requesting 512 pages of size 2MB from socket 0
> EAL: TSC frequency is ~2394002 KHz
> EAL: WARNING: Master core has no memory on local socket!
> EAL: Cannot read numa node link for lcore 0 - using physical package id
> instead
> EAL: Cannot read numa node link for lcore 0 - using physical package id
> instead
> EAL: Master lcore 0 is ready (tid=319e880;cpuset=[0])
> PMD: ENICPMD trace: rte_enic_pmd_init
> EAL: Cannot read numa node link for lcore 4 - using physical package id
> instead
> EAL: Cannot read numa node link for lcore 5 - using physical package id
> instead
> EAL: Cannot read numa node link for lcore 1 - using physical package id
> instead
> EAL: Cannot read numa node link for lcore 1 - using physical package id
> instead
> EAL: Cannot read numa node link for lcore 2 - using physical package id
> instead
> EAL: Cannot read numa node link for lcore 3 - using physical package id
> instead
> EAL: Cannot read numa node link for lcore 5 - using physical package id
> instead
> EAL: Cannot read numa node link for lcore 6 - using physical package id
> instead
> EAL: Cannot read numa node link for lcore 7 - using physical package id
> instead
> EAL: Cannot read numa node link for lcore 2 - using physical package id
> instead
> EAL: Cannot read numa node link for lcore 7 - using physical package id
> instead
> EAL: lcore 1 is ready (tid=c1ff8700;cpuset=[1])
> EAL: lcore 2 is ready (tid=c15f7700;cpuset=[2])
> EAL: Cannot read numa node link for lcore 4 - using physical package id
> instead
> EAL: Cannot read numa node link for lcore 3 - using physical package id
> instead
> EAL: lcore 5 is ready (tid=bf7f4700;cpuset=[5])
> EAL: Cannot read numa node link for lcore 6 - using physical package id
> instead
> EAL: lcore 7 is ready (tid=be3f2700;cpuset=[7])
> EAL: lcore 3 is ready (tid=c0bf6700;cpuset=[3])
> EAL: lcore 6 is ready (tid=bedf3700;cpuset=[6])
> EAL: lcore 4 is ready (tid=c01f5700;cpuset=[4])
> EAL: PCI device 0000:07:00.0 on NUMA socket -1
> EAL:   probe driver: 8086:10c9 rte_igb_pmd
> EAL:   PCI memory mapped at 0x7f8402e00000
> EAL:   PCI memory mapped at 0x7f83bd5f2000
> EAL:   PCI memory mapped at 0x7f84031ba000
> PANIC in rte_eth_dev_data_alloc():
> Cannot allocate memzone for ethernet port data
> 8: [build/app/testpmd() [0x4285d9]]
> 7: [/lib64/libc.so.6(__libc_start_main+0xfd) [0x3d18e1ecdd]]
> 6: [build/app/testpmd(main+0x18) [0x42dce8]]
> 5: [build/app/testpmd(rte_eal_init+0xab8) [0x4982c8]]
> 4: [build/app/testpmd(rte_eal_pci_probe+0xe2) [0x4a27e2]]
> 3: [build/app/testpmd() [0x491ea7]]
> 2: [build/app/testpmd(__rte_panic+0xc0) [0x428520]]
> 1: [build/app/testpmd(rte_dump_stack+0x1e) [0x49e91e]]
> 
>