[dpdk-users] Packet Drop seen when Oracle Linux upgrade to OL7.8 - DPDK 19.11

[Stephen Hemminger]

On Tue, 27 Apr 2021 15:17:12 +0530
vikram T <vikramet at gmail.com> wrote:

> Hi,
> It was observed that in DPDK packet drops were observed when OS was
> upgraded to Oracle Linux 7.8 i.e:
>  From *4.14.35-1818.3.3.el7uek.x86_64* ==>
> *4.14.35-1902.300.11.el7uek.x86_64*.
> 
> After reverting back to the older kernel (4.14.35-1818.3.3.el7uek.x86_64)
> there were no packet drops.
> DPK version being used is - DPDK v19.11.
> 
> Any lead to understand the root cause would be appreciated.
> What factors could affect the kernel upgrade?
> 
> Regards
> Vikram

What driver and interface are you using (igb_uio, vfio?)