On Mon, Dec 21, 2020 at 10:34 PM Miaoqing Pan <miaoqing@xxxxxxxxxxxxxx> wrote: > > Failed to transmit wmi management frames: > > [84977.840894] ath10k_snoc a000000.wifi: wmi mgmt tx queue is full > [84977.840913] ath10k_snoc a000000.wifi: failed to transmit packet, dropping: -28 > [84977.840924] ath10k_snoc a000000.wifi: failed to submit frame: -28 > [84977.840932] ath10k_snoc a000000.wifi: failed to transmit frame: -28 > > This issue is caused by race condition between skb_dequeue and > __skb_queue_tail. The queue of ‘wmi_mgmt_tx_queue’ is protected by a > different lock: ar->data_lock vs list->lock, the result is no protection. Reviewed-by: Brian Norris <briannorris@xxxxxxxxxxxx>
