[dpdk-users] Issue with IPsec Security Gateway sample application (on VM) at 1Gbps traffic

Chinmaya Dwibedy ckdwibedy at gmail.com
Wed Aug 10 15:52:54 CEST 2016

Hi ,

I am running the IPsec Security Gateway application ( at
http://dpdk.org/browse/dpdk/tree/examples/ipsec-secgw) on two VMs.  It uses
AESNI crypto device.

Modified this application to add the Security Associations (SA) as ACL
rules like Security Policies (SP). I have added 100 entries of SP and SA. I
am also able to send the UDP traffic (one packet) in each of these tunnels.
But while sending 1 Gbs traffic (distributed through 100 tunnels) , it is
getting crashed . Here is the core dump

Core was generated by `./build/ipsec-secgw -l 0 -n 4 --pci-blacklist
0000:00:04.0 -- -p 0x3 --config=('.

Program terminated with signal SIGSEGV, Segmentation fault.

#0  0x000000000047d8c5 in search_avx2x16 ()

Missing separate debuginfos, use: debuginfo-install


(gdb) bt

#0  0x000000000047d8c5 in search_avx2x16 ()

#1  0x0000000000436955 in process_pkts_outbound (ctx=0x9b3800 <socket_ctx>,

    portid=1 '\001') at

#2  0x0000000000437055 in process_pkts (ctx=0x9b3800 <socket_ctx>,
pkts=0x7fff33574eb0, nb_pkts=23 '\027',

    portid=1 '\001') at

#3  0x0000000000437a08 in main_loop (dummy=0x0) at

#4  0x00000000004a15f3 in rte_eal_mp_remote_launch ()

#5  0x000000000043a3dd in main (argc=9, argv=0x7fff33575270)

    at /root/dpdk-2.2.0/examples/ipsec-secgw/ipsec-secgw.c:1904


I am using ESP tunnel mode with AES encryption algorithm and SHA1
authentication algorithm . Here is the configuration to lunch the
application ./build/ipsec-secgw  -l 0 -n 4 --pci-blacklist 0000:00:05.0 --
-p 0x3 --config="(0,0,0),(1,0,0)" -u 0x1 --cdev AESNI --ep0

There might be packets drop but it should not crash. Note that, with one
IPsec tunnel, I do not face this issue. Can anyone please suggest what
might be the issues behind this crash? Thank you in advance for your time
and support.

Please feel free to let me know if additional information is needed.



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