[Possible fix for Big Sur and samba (smb) transfer hangs -- kernel panic and/or error -8084]   If you are experiencing issue with Big Sur and samba (smb) transfers here is a possible fix that is working for me. Change the size of the buffer the kernel allocates to hold the data with SO_RCVBUF and SO_SNDBUF to a size of 65536 bytes,   Add this line to the [global] configuration of your samba server: socket options = TCP_NODELAY IPTOS_LOWDELAY SO_RCVBUF=65536 SO_SNDBUF
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