[dpdk-users] dpdk-pdump is not working

[dpdk-users] dpdk-pdump is not working

[Heung Sik Choi]

Hi

I want to run dpdk-pdump. So, I recompile with option of PCAP and PDUMP.
Also my machine is dual CPU(Xeon 2630 v2), so I set hugepage with NUMA
option. the huge page size is 2MB and the number of hugepage is each 8192
both side.

when the setting is over, I ran the
dpdk-pdump(/dpdk/x86_64_native_linuxapp-gcc/build/app/pdump). However,
 error happens.

error message is below:

PANIC in rte_eal_config_attach():
Cannot open '/var/run/.rte_config' for rte_mem_config
6: [./dpdk-pdump() [0x437fc9]]
5: [/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf5)
[0x7f5c419baf45]]
4: [./dpdk-pdump(main+0x154) [0x440cd2]]
3: [./dpdk-pdump(rte_eal_init+0xd9c) [0x477bec]]
2: [./dpdk-pdump(__rte_panic+0xbe) [0x431b20]]
1: [./dpdk-pdump(rte_dump_stack+0x1a) [0x47f68a]]


I also change the dpdk-pdump which is in
/dpdk/x86_64_native_linuxapp-gcc/app, but same error happens.

Please let me know if you have any insights.

Re: [dpdk-users] dpdk-pdump is not working

[Pattan, Reshma]

Hi,

dpdk-pdump is secondary process and it must  be run along with any primary process.
The primary process must initialize packet capture framework by calling rte_pdump_init() and rt_pdump_uninit() apis, please refer testpmd.c file to see how this is done.
Also I suggest you go through the below docs to understand about the usage. Let me know if you have any questions.
	
	http://dpdk.org/doc/guides/tools/pdump.html  ==> dpdk-pdump  tool usage is explained
             http://dpdk.org/doc/guides/prog_guide/pdump_lib.html  ==> Pdump library is explained
           
Thanks,
Reshma

> -----Original Message-----
> From: users [mailto:users-bounces@dpdk.org] On Behalf Of Heung Sik Choi
> Sent: Friday, June 2, 2017 9:47 AM
> To: users@dpdk.org
> Subject: [dpdk-users] dpdk-pdump is not working
> 
> Hi
> 
> I want to run dpdk-pdump. So, I recompile with option of PCAP and PDUMP.
> Also my machine is dual CPU(Xeon 2630 v2), so I set hugepage with NUMA
> option. the huge page size is 2MB and the number of hugepage is each 8192
> both side.
> 
> when the setting is over, I ran the
> dpdk-pdump(/dpdk/x86_64_native_linuxapp-gcc/build/app/pdump).
> However,  error happens.
> 
> error message is below:
> 
> PANIC in rte_eal_config_attach():
> Cannot open '/var/run/.rte_config' for rte_mem_config
> 6: [./dpdk-pdump() [0x437fc9]]
> 5: [/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf5)
> [0x7f5c419baf45]]
> 4: [./dpdk-pdump(main+0x154) [0x440cd2]]
> 3: [./dpdk-pdump(rte_eal_init+0xd9c) [0x477bec]]
> 2: [./dpdk-pdump(__rte_panic+0xbe) [0x431b20]]
> 1: [./dpdk-pdump(rte_dump_stack+0x1a) [0x47f68a]]
> 
> 
> I also change the dpdk-pdump which is in /dpdk/x86_64_native_linuxapp-
> gcc/app, but same error happens.
> 
> Please let me know if you have any insights.