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Date: Thu, 14 Jan 2016 17:33:52 +0530
Message-ID: <CABHD4K_RL_FR2PbPbUj7Chh4B2=3GpWGVhgKK3pUPJFsHbtNnw@mail.gmail.com>
From: Amit Tomer <amittomer25@gmail.com>
To: "Tan, Jianfeng" <jianfeng.tan@intel.com>
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Cc: nakajima.yoshihiro@lab.ntt.co.jp, "Michael S. Tsirkin" <mst@redhat.com>,
 dev@dpdk.org, ann.zhuangyanying@huawei.com
Subject: Re: [dpdk-dev] [PATCH 0/4] virtio support for container
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Hello,

>
> Not necessary. But if you want to use hugepages inside Docker, use -v option
> to map a hugetlbfs into containers.

I modified Docker command line in order to make use of Hugetlbfs:

CMD ["/usr/src/dpdk/examples/l2fwd/build/l2fwd", "-c", "0x3", "-n",
"4","--no-pci", "--socket-mem","512",
"--vdev=eth_cvio0,queue_num=256,rx=1,tx=1,cq=0,path=/var/run/usvhost",
"--", "-p", "0x1"]

Then, I run docker :

 docker run -i -t --privileged  -v /dev/hugepages:/dev/hugepages  -v
/home/ubuntu/backup/usvhost:/var/run/usvhost  l6

But this is what I see:

EAL: Support maximum 128 logical core(s) by configuration.
EAL: Detected 48 lcore(s)
EAL: Setting up physically contiguous memory...
EAL: Failed to find phys addr for 2 MB pages
PANIC in rte_eal_init():
Cannot init memory
1: [/usr/src/dpdk/examples/l2fwd/build/l2fwd(rte_dump_stack+0x20) [0x48ea78]]

This is from Host:

# mount | grep hugetlbfs
hugetlbfs on /dev/hugepages type hugetlbfs (rw,relatime)
none on /dev/hugepages type hugetlbfs (rw,relatime)

 #cat /proc/meminfo | grep Huge
AnonHugePages:    548864 kB
HugePages_Total:    4096
HugePages_Free:     1024
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB

What is it, I'm doing wrong here?

Thanks,
Amit