Hi BR, > > I'm using 3.9 mainline mwifiex driver for wireless usb card. Doing some > throughput testing (with iperf) in 5GHz I got following failures: > [ 221.521799] usb 1-1: mwifiex_usb_submit_rx_urb: dev_alloc_skb failed
This is skb allocation failure returned by kernel. 4k buffer is always allocated for Rx packets. This issue doesn't seem to be specific to 5Ghz. > > I checked which which size fails to allocate and it's 4096 bytes. I was > looking to changes in never kernel releases but I cannot find anything > obvious. When connected to 2.4GHz I cannot reproduce issue though. I'm > using FW version mwifiex 1.0 (14.68.29.p26). > Could you please provide the platform details? How often the problem occurs during throughput testing? Are there any specific steps? Regards, Amitkumar Karwar
