Looks like this assertion does not trigger with the current version anymore, so I think we could close this bug. Or can you still reproduce it?
** Changed in: qemu Status: New => Incomplete -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1187334 Title: crash on hot-unplug of vmxnet3 Status in QEMU: Incomplete Bug description: Hot-unplug of a vmxnet3 device crashes as follows: (qemu) device_add id=ff,driver=vmxnet3 [vmxnet3][WR][vmxnet3_peer_has_vnet_hdr]: Peer has no virtio extension. Task offloads will be emulated. (qemu) device_del ff (qemu) qemu-system-x86_64: /home/pbonzini/work/upstream/qemu/net/net.c:315: qemu_del_net_client: Assertion `queues != 0' failed. To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1187334/+subscriptions