I can't seem to start a VM with virtiofs. Everything is running as root (unraid) with a pretty simple setup:
<filesystem type='mount' accessmode='passthrough'>
<driver type='virtiofs'/>
<binary path='/usr/libexec/virtiofsd' />
<source dir='/mnt/user/shared'/>
<target dir='shared_mount'/>
</filesystem>
<driver type='virtiofs'/>
<binary path='/usr/libexec/virtiofsd' />
<source dir='/mnt/user/shared'/>
<target dir='shared_mount'/>
</filesystem>
Even with debug logging at max, all I get in the main log is:
qemu-system-x86_64: -device vhost-user-fs-pci,chardev=chr-vu-fs0,tag=shared_mount,bus=pci.5,addr=0x0: Failed to write msg. Wrote -1 instead of 12.
qemu-system-x86_64: -device vhost-user-fs-pci,chardev=chr-vu-fs0,tag=shared_mount,bus=pci.5,addr=0x0: vhost_dev_init failed: Operation not permitted
shutting down, reason=failed
qemu-system-x86_64: -device vhost-user-fs-pci,chardev=chr-vu-fs0,tag=shared_mount,bus=pci.5,addr=0x0: vhost_dev_init failed: Operation not permitted
shutting down, reason=failed
And in the fsd log:
[ID: 00029648] virtio_session_mount: Waiting for vhost-user socket connection...
[ID: 00029648] virtio_session_mount: Received vhost-user socket connection
[ID: 00000001] pivot_root(., .): Invalid argument
Nothing else in any other logs (e.g. dmesg). What do these errors mean? How do I troubleshoot this?
