Re: [PATCH] af_packet: Raw socket destruction warning fix

Hi Daniel,

The other sock_put() in packet_release() to drop the final ref and call into
sk_free(), which drops the 1 ref on the sk_wmem_alloc from init time. Since you
got into __sk_free() via sock_wfree() destructor, your socket must have invoked
packet_release() prior to this (perhaps kernel destroying the process).

What kernel do you use?

Issue is coming for 3.10.58.

quoted

Driver calls dev_kfree_skb_any->dev_kfree_skb_irq
and it adds buffer in completion queue to free and raises softirq NET_TX_SOFTIRQ

net_tx_action->__kfree_skb->skb_release_all->skb_release_head_state->sock_wfree->
__sk_free->packet_sock_destruct

Also purging of receive queue has been taken care in other protocols.