Hi Chi-hsien,

>>> i was able to reproduce an (maybe older issue) with 4-way handshake
>>> offloading for 802.1X in the brcmfmac driver. My setup consists of
>>> Raspberry Pi 3 B (current linux-next, arm64/defconfig) on STA side and a
>>> Raspberry Pi 3 A+ (Linux 4.19) on AP side.
>> 
>> Looks like Raspberry Pi isn't the only affected platform [3], [4].
>> 
>> [3] - https://bugzilla.redhat.com/show_bug.cgi?id=1665608
>> [4] - https://bugzilla.kernel.org/show_bug.cgi?id=202521
> 
> Stefan,
> 
> Could you please try the attached patch for your wpa_supplicant? We'll 
> upstream if it works for you.

I hope that someone is also providing a kernel patch to fix the issue. Hacking 
around a kernel issue in userspace is not enough. Fix the root cause in the 
kernel.

Regards

Marcel

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