[dpdk-dev] Weird behavior of DPDK - ongoing problem

Tetsuya.Mukawa mukawa at igel.co.jp
Mon Apr 14 09:20:50 CEST 2014


Hi Meir,

(2014/04/13 19:21), Meir Tseitlin wrote:
> The problem is that in 30% of the cases data packet enters the path of
> control packet instead of expected answer. Which probably means that after
> my packet type check, the mbuf is overwritten before handled properly.
If you are using DPDK-1.5, it's nice to update to DPDK-1.6, because pcap
pmd of DPDK-1.5 has buffer overflow while receiving  data from a target
device/file. And the issue was solved with DPDK-1.6 (in both intel
original code and dpdk.org code).

Also if multiple processes/threads run on a same cpu, probably, it could
cause a problem like you're facing.

Regards,
Tetsuya


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