Re: [dpdk-users] pdump help

["Pattan, Reshma" <reshma.pattan@intel.com>]

Hi,

I see some cleanup related bug in the dpdk_pdump tool, so until I publish fix for that,
You need to restart  both primary and secondary process( work around) after you see any RING/VDEV failure issues.

Thanks,
Reshma


From: Pattan, Reshma
Sent: Friday, July 22, 2016 10:31 AM
To: 'Nishant Verma' <vnish11@gmail.com>
Cc: users@dpdk.org
Subject: RE: pdump help

Hi,

As I see “RING: Cannot reserve memory”. Please allocate enough huge page memory and see what happens.

Also once you encounter such error please restart  both primary and secondary process.

Please paste me the full  error log, if you still face the issue.

Thanks,
Reshma


From: Nishant Verma [mailto:vnish11@gmail.com]
Sent: Thursday, July 21, 2016 9:10 PM
To: Pattan, Reshma <reshma.pattan@intel.com<mailto:reshma.pattan@intel.com>>
Cc: users@dpdk.org<mailto:users@dpdk.org>
Subject: Re: pdump help

Hi Reshma,

Tried things pointed by you(libpcap Installed & config parameter is set).
But still things are not working.

"
root@ubuntu:/home/oneweb/dpdk/app/pdump# ./dpdk_pdump --proc-type=secondary -- --pdump 'device_id=03:00.0,queue=*,rx-dev=/tmp/rx-file.pcap,tx-dev=/tmp/tx-file.pcap'
EAL: Detected 16 lcore(s)
EAL: Probing VFIO support...
EAL: WARNING: Address Space Layout Randomization (ASLR) is enabled in the kernel.
EAL:    This may cause issues with mapping memory into secondary processes
PMD: bnxt_rte_pmd_init() called for (null)
EAL: PCI device 0000:03:00.0 on NUMA socket 0
EAL:   probe driver: 8086:15ad rte_ixgbe_pmd
EAL: PCI device 0000:03:00.1 on NUMA socket 0
EAL:   probe driver: 8086:15ad rte_ixgbe_pmd
PMD: eth_ixgbe_dev_init(): No TX queues configured yet. Using default TX function.
EAL: PCI device 0000:05:00.0 on NUMA socket 0
EAL:   probe driver: 8086:1521 rte_igb_pmd
EAL: PCI device 0000:05:00.1 on NUMA socket 0
EAL:   probe driver: 8086:1521 rte_igb_pmd
RING: Cannot reserve memory
EAL: Error - exiting with code: 1
  Cause: File exists:create_mp_ring_vdev:649
"


Rgds,
Nishant


On Thu, Jul 21, 2016 at 5:16 AM, Pattan, Reshma <reshma.pattan@intel.com<mailto:reshma.pattan@intel.com>> wrote:
Hi,

Pdump tool is designed based on PCAP PMD. So you need to install libpcap package and set CONFIG_RTE_LIBRTE_PMD_PCAP flag to “y”
in config/common_base file and recompile the DPDK and run pdump tool. Please let me know if that fix the issue.

This dependency is mentioned in the  document “doc/guides/sample_app_ug/pdump.rst.”

Thanks,
Reshma

From: Nishant Verma [mailto:vnish11@gmail.com<mailto:vnish11@gmail.com>]
Sent: Wednesday, July 20, 2016 8:08 PM
To: Pattan, Reshma <reshma.pattan@intel.com<mailto:reshma.pattan@intel.com>>
Subject: pdump help

Hi Reshma,

i am facing some issue in executing pdump. I have seen in logs that you recently updated the code. Please let me know if i am doing anything wrong.


app/pdump# ./dpdk_pdump -- --pdump 'device_id=03:00.0,queue=*,rx-dev=/tmp/rx-1-file.pcap,tx-dev=tx-1-file.pcap'

This is the error i am getting.
Cause: File exists:create_mp_ring_vdev:649

​Thanks a lot.​

--
Rgds,
Nishant






--
Rgds,
Nishant