* [dpdk-dev] Error when starting testpmd in dpdk 2.2.0 ("Creation of mbuf pool for socket 0 failed")
@ 2016-03-22 20:21 Kevin Wilson
0 siblings, 0 replies; only message in thread
From: Kevin Wilson @ 2016-03-22 20:21 UTC (permalink / raw)
To: dev
Hi,
I am getting the following error while running testpmd:
RING: Cannot reserve memory
EAL: Error - exiting with code: 1
Cause: **** Creation of mbuf pool for socket 0 failed
I am running it thus:
build/app/testpmd --log-level 8 -c7 -n3 -- \
-i --nb-cores=2 --nb-ports=2 --pkt-filter-mode=perfect
And I followed the instruction on http://dpdk.org/doc/quick-start
However, on my machine, as opposed to what appears in the link above,
there is no
/sys/devices/system/node/node0/hugepages/hugepages-2048kB/nr_hugepage
, and under /sys/devices/system/node I have only a single node called "node1".
I don't know what is the reason for this, this is Fedora 23 x86_64
standard distro and a standard kernel (4.2.3-300.fc23.x86_64), and on
a different machine I **do** have node0.
So instead
echo 64 > /sys/devices/system/node/node0/hugepages/hugepages-2048kB/nr_hugepages
I run
echo 64 > /sys/devices/system/node/node1/hugepages/hugepages-2048kB/nr_hugepages
Could this be related somehow to the problem I have ?
More info:
This is a 16 core machine.
I also delved a bit into the code and added a debug message which
prints the pool name in the method where the failure occur,
mbuf_pool_create(), and this is what I see:
calling rte_pktmbuf_pool_create(), pool_name=mbuf_pool_socket_0 in
mbuf_pool_create
Any ideas ?
Regards,
Kevin
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