[Bug 1302] dpdk-pcapdump regression

[Bug 1302] dpdk-pcapdump regression

[bugzilla]

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https://bugs.dpdk.org/show_bug.cgi?id=1302

            Bug ID: 1302
           Summary: dpdk-pcapdump regression
           Product: DPDK
           Version: 23.03
          Hardware: x86
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: testpmd
          Assignee: dev@dpdk.org
          Reporter: nick.hedberg@gmail.com
  Target Milestone: ---

Created attachment 262
  --> https://bugs.dpdk.org/attachment.cgi?id=262&action=edit
testpmd output for the two commits

Commit 6026bfa breaks dumpcap on CX6 DX, the previous commit. 742be6a, didn't
show this issue. 
The error with this commit is: 
> ~/dpdk/build-6026bfa$ sudo ./app/dpdk-testpmd -c 0xf0 -n 4 -a 0000:03:00.0 --
> -i --port-topology=chained
...
> testpmd> start
> Packet forwarding already started
> testpmd> pdump_register_rx_callbacks(): rx callback for port=0 queue=0,
> already exists

and: 

>~/dpdk/build-6026bfa$ sudo ./app/dpdk-dumpcap -i 0  -c 6 -i 0 -w
>/tmp/sample.pcapng
File: /tmp/sample.pcapng
>pdump_prepare_client_request(): client request for pdump enable/disable failed
>EAL: Error - exiting with code: 1
>  Cause: Packet dump enable on 0:0000:03:00.0 failed Operation not permitted

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