[dpdk-dev] Kernel deadlock due to rte_kni

[Neil Horman]

On Thu, Mar 26, 2015 at 11:01:14AM +0000, Dey, Souvik wrote:
> Do you see any benefit of calling netif_rx_ni() and not directly netif_rx() ?
> 
Yes, I see using the ni variant as not being a bug.  kni_net_rx is run from
process context (it runs as a thread created by kthread_create).  netif_rx
assumes execution occurs in interrupt context, so deadlocks like those below can
still occur if you don't disable pre-emption and irqs on the local cpu.
netif_rx_ni (the No Interrupt) variant, does that for you.

Neil