>> I plan to also try with a e1000 network interface model tomorrow and see how >> that behaves.... > > Please do :) I added e1000 and e1000e support to my kernel and changed the QEMU command to:
$QEMU -nographic \ -machine virt \ -smp 1 -m 8G \ -append "console=hvc0 ro root=/dev/vda nvme.admin_timeout=1" \ -kernel $KERNEL \ -drive file=${ROOTFS},format=raw,id=hd0 \ -device virtio-blk-device,drive=hd0 \ -device virtio-net-device,netdev=net0 \ -netdev user,id=net0 \ -device e1000,netdev=net1 \ -netdev user,id=net1 And the kernel ooops: [ 0.224000] e1000: Intel(R) PRO/1000 Network Driver - version 7.3.21-k8-NAPI [ 0.224000] e1000: Copyright (c) 1999-2006 Intel Corporation. [ 0.224000] e1000 0000:00:01.0: enabling device (0000 -> 0002) [ 0.244000] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 [ 0.244000] Oops [#1] [ 0.244000] Modules linked in: [ 0.244000] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.19.0-rc6-eideticom-riscv-00038-gc2b45b2fe26a-dirty #41 [ 0.244000] sepc: ffffffd20040cc18 ra : ffffffd20040e912 sp : ffffffd3f7a77b60 [ 0.244000] gp : ffffffd2007e5960 tp : ffffffd3f7ac0000 t0 : ffffffd3f754b4c0 [ 0.244000] t1 : 0000000000000000 t2 : 00000000000003af s0 : ffffffd3f7a77b70 [ 0.244000] s1 : ffffffd3f7554b20 a0 : ffffffd3f7554b20 a1 : 0000000000000000 [ 0.244000] a2 : 0000000000000000 a3 : 0000000000000001 a4 : 0000000000000002 [ 0.244000] a5 : 0000000000000002 a6 : 00000000eac0c6e6 a7 : 0000000000000000 [ 0.244000] s2 : 0000000004140240 s3 : 0000000000000000 s4 : ffffffd3f7554f08 [ 0.244000] s5 : ffffffd3f7554000 s6 : ffffffd2007e7794 s7 : ffffffd3f7555000 [ 0.244000] s8 : ffffffd3f75546c0 s9 : ffffffd3f7554b20 s10: 0000000000001000 [ 0.244000] s11: 0000000000000000 t3 : ffffffd20078e918 t4 : ffffffd20078e920 [ 0.244000] t5 : 0000000000000007 t6 : 0000000000000006 [ 0.244000] sstatus: 0000000000000120 sbadaddr: 0000000000000000 scause: 000000000000000f [ 0.252000] ---[ end trace 371f7702831e633b ]---