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From: "VERDOUX, Sylvain" <s.verdoux@evs.com>
To: "users@dpdk.org" <users@dpdk.org>
Thread-Topic: Crash on symmetric_mp sample
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Date: Fri, 27 Nov 2015 13:59:27 +0000
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Subject: [dpdk-users] Crash on symmetric_mp sample
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Hello dear DPDK devs/users,

I'm currently testing the DPDK symmetric_mp sample on an Intel X710 NIC and=
 I face a crash in i40e_recv_pkts doing the following steps :
- start a first process : ./symmetric_mp -l 1 -n 4 -w 81:00.0 -w 81:00.1 --=
proc-type=3Dprimary -- -p 3 --num-procs=3D2 --proc-id 0
- start a second process : ./symmetric_mp -l 2 -n 4 -w 81:00.0 -w 81:00.1 -=
-proc-type=3Dsecondary -- -p 3 --num-procs=3D2 --proc-id 1
- stop the primary process with a SIGINT (secondary process is still runnin=
g nicely)
- restart the first process as a "secondary" : ./symmetric_mp -l 1 -n 4 -w =
81:00.0 -w 81:00.1 --proc-type=3Dsecondary -- -p 3 --num-procs=3D2 --proc-i=
d 0

According to the documentation on the symmetric_mp example this should work=
 but I face a segfault.
Oh and I have deactivated ASLR as recommended.

I run this on a centOS 7 kernel 3.10.0-229.7.2.el7.x86_64.
Intel X710 10Gb Ethernet.
2x Intel(R) Xeon(R) CPU E5-2699 v3 @ 2.30GHz.

I will try to compile dpdk in debug to be able to give you more info on the=
 crash, but I wanted to know if you have already faced such issue ?

Best Regards,
Sylvain