command kvargs_autotest excute failed on freebsd with gcc and clang

https://bugs.dpdk.org/show_bug.cgi?id=462

Bug ID: 462
Summary: command kvargs_autotest excute failed on freebsd with
gcc and clang
Product: DPDK
Version: 20.05
Hardware: x86
OS: FreeBSD
Status: UNCONFIRMED
Severity: normal
Priority: Normal
Component: testpmd
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---

---------------------------------Description----------------------------------- when i start up testpmd and excuted 'kvargs_autotest' with gcc and clang on freebsd,the dpdk output 'Segmentation fault' and testpmd drop out,the expected output is 'test ok'.
---------------------------------reproduce steps------------------------------- 1.compile dpdk by clang
export RTE_SDK=pwd
export RTE_TARGET=x86_64-native-bsdapp-clang
gmake -j install T=x86_64-native-bsdapp-clang

2.load driver and bind nic driver in freebsd kldload ./x86_64-native-bsdapp-clang/kmod/contigmem.ko kldload ./x86_64-native-bsdapp-clang/kmod/nic_uio.ko Pciconf -l
kenv hw.nic_uio.bdfs="134:0:0,134:0:1"

3.start testpmd ./x86_64-native-bsdapp-clang/app/test -l 1,2,4,6 -n 4

4.execute command
kvargs_autotest

5.output
RTE>>kvargs_autotest
== test valid case ==
== test invalid case ==
Segmentation fault

6.Expected Result
RTE>>kvargs_autotest
== test valid case ==
== test invalid case ==
Test OK

comments：gcc have the same issue as clang.

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https://bugs.dpdk.org/show_bug.cgi?id=462

Huang,zhimin ([email protected]) changed:

What |Removed |Added
----------------------------------------------------------------------------

         Resolution|---                         |FIXED
             Status|CONFIRMED                   |RESOLVED

--- Comment #4 from Huang,zhimin ([email protected]) --- Verified patch ok,thanks a lot.

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