[dpdk-dev] Testpmd fails in initialization

[Rosen, Rami]

Hi Monika,

> For last command I just declared 10 hugepages.

This is not enough.

I would suggest that you will try with 256 pages.
I assume you have 2 sockets on the host (this can be verified by running "lspcu") and use 2MB hugepages.

So, this can be done by:
echo 256 > /sys/devices/system/node/node0/hugepages/hugepages-2048kB/nr_hugepages
and 
echo 256 > /sys/devices/system/node/node1/hugepages/hugepages-2048kB/nr_hugepages

And run the same command that you used to launch testpmd.

(And if testpmd will still fail, please post the output of 
cat /proc/meminfo | grep -i huge)

Also for the future, this type of queries should be posted on dpdk-users mailing list.

Regards,
Rami Rosen


-----Original Message-----
From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Monika Mails
Sent: Saturday, June 02, 2018 01:18
To: Stephen Hemminger <stephen at networkplumber.org>
Cc: dev at dpdk.org
Subject: Re: [dpdk-dev] Testpmd fails in initialization

Hi Stephen

For last command I just declared 10 hugepages.

Regards,
Monika

On Fri, Jun 1, 2018 at 3:11 PM, Stephen Hemminger < stephen at networkplumber.org> wrote:

> How much huge page memory did you confirm?
> $ cat /proc/meminfo
>
> On Fri, Jun 1, 2018, 3:06 PM Monika Mails <mails.monika at gmail.com> wrote:
>
>> Hi All,
>>
>> This is Monika.
>> I am new to DPDK.
>> I just installed DPDK release - 18.05 on my server and trying to run 
>> "testpmd"
>>
>> Here is my command and its output :-
>>
>>  sudo testpmd -l 8 -n 4 -c 0x3 --socket-mem=512,512
>>
>> EAL: Detected lcore 0 as core 3 on socket 0
>> EAL: Detected lcore 1 as core 3 on socket 1
>> EAL: Detected lcore 2 as core 4 on socket 0
>> EAL: Detected lcore 3 as core 4 on socket 1
>> EAL: Detected lcore 4 as core 5 on socket 0
>> EAL: Detected lcore 5 as core 5 on socket 1
>> EAL: Detected lcore 6 as core 6 on socket 0
>> EAL: Detected lcore 7 as core 6 on socket 1
>> EAL: Detected lcore 8 as core 10 on socket 0
>> EAL: Detected lcore 9 as core 10 on socket 1
>> EAL: Detected lcore 10 as core 11 on socket 0
>> EAL: Detected lcore 11 as core 11 on socket 1
>> EAL: Detected lcore 12 as core 3 on socket 0
>> EAL: Detected lcore 13 as core 3 on socket 1
>> EAL: Detected lcore 14 as core 4 on socket 0
>> EAL: Detected lcore 15 as core 4 on socket 1
>> EAL: Detected lcore 16 as core 5 on socket 0
>> EAL: Detected lcore 17 as core 5 on socket 1
>> EAL: Detected lcore 18 as core 6 on socket 0
>> EAL: Detected lcore 19 as core 6 on socket 1
>> EAL: Detected lcore 20 as core 10 on socket 0
>> EAL: Detected lcore 21 as core 10 on socket 1
>> EAL: Detected lcore 22 as core 11 on socket 0
>> EAL: Detected lcore 23 as core 11 on socket 1
>> EAL: Support maximum 128 logical core(s) by configuration.
>> EAL: Detected 24 lcore(s)
>> EAL: No free hugepages reported in hugepages-1048576kB
>> EAL: Setting up physically contiguous memory...
>> EAL: Ask a virtual area of 0x200000 bytes
>> EAL: Virtual area found at 0x7f2d14600000 (size = 0x200000)
>> EAL: Ask a virtual area of 0x200000 bytes
>> EAL: Virtual area found at 0x7f2d14200000 (size = 0x200000)
>> EAL: Ask a virtual area of 0x200000 bytes
>> EAL: Virtual area found at 0x7f2d13e00000 (size = 0x200000)
>> EAL: Ask a virtual area of 0x200000 bytes
>> EAL: Virtual area found at 0x7f2d13a00000 (size = 0x200000)
>> EAL: Ask a virtual area of 0x400000 bytes
>> EAL: Virtual area found at 0x7f2d13400000 (size = 0x400000)
>> EAL: Ask a virtual area of 0x200000 bytes
>> EAL: Virtual area found at 0x7f2d13000000 (size = 0x200000)
>> EAL: Ask a virtual area of 0x200000 bytes
>> EAL: Virtual area found at 0x7f2d12c00000 (size = 0x200000)
>> EAL: Ask a virtual area of 0x400000 bytes
>> EAL: Virtual area found at 0x7f2d12600000 (size = 0x400000)
>> *EAL: Not enough memory available on socket 0! Requested: 512MB,
>> available:
>> 0MB*
>> PANIC in rte_eal_init():
>> Cannot init memory
>> 6: [testpmd(_start+0x29) [0x4155b9]]
>> 5: [/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf0)
>> [0x7f2d158b5830]]
>> 4: [testpmd(main+0x51) [0x414fb1]]
>> 3: [/usr/lib/x86_64-linux-gnu/libdpdk.so.0(rte_eal_init+0x1111)
>> [0x7f2d16e59c91]]
>> 2: [/usr/lib/x86_64-linux-gnu/libdpdk.so.0(__rte_panic+0xd0)
>> [0x7f2d16e38e18]]
>> 1: [/usr/lib/x86_64-linux-gnu/libdpdk.so.0(rte_dump_stack+0x2b)
>> [0x7f2d16fa840b]]
>> Aborted (core dumped)
>>
>> Here are the other details of my server :-
>>
>> *./deps/dpdk-18.05/usertools/cpu_layout.py*
>> =====================================================================
>> = Core and Socket Information (as reported by 
>> '/sys/devices/system/cpu') 
>> =====================================================================
>> =
>>
>> cores =  [3, 4, 5, 6, 10, 11]
>> sockets =  [0, 1]
>>
>>         Socket 0        Socket 1
>>         --------        --------
>> Core 3  [0, 12]         [1, 13]
>> Core 4  [2, 14]         [3, 15]
>> Core 5  [4, 16]         [5, 17]
>> Core 6  [6, 18]         [7, 19]
>> Core 10 [8, 20]         [9, 21]
>> Core 11 [10, 22]        [11, 23]
>>
>> I tried selecting different number of hugepages from 1024-10, but 
>> getting the same initialization error.
>> Can someone please suggest some resolution.
>> Appreciate some advice.
>>
>> Regards,
>> Monika
>>
>