Hi, Just worked linux-6.15.4 and fpacnode FPAC client performing nice connection with adjacent nodes. After a couple of hours I added netromd daemon to send and receive NET / ROM routing messages. Soon this triggered the same OOps as before with kernel 6.15.6 (screen picture is joined). It says : Comm: kworker/u16:3 Not tainted and inside of Call Trace: one can see mkiss_receive_buf+0x301/0x3f0 [mkiss] All this is exactly the same OOps report as with kernel 6.15.6 already reported. Bernard