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
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