I am trying to setup virtfs using KVM and QEMU.
1. Inside the VM, I do
* mount -t virtiofs myfs /dev/myfile --succeeds
* cd /dev/myfile -hangs
1. The host logs -
qemu-system: Failed to write msg. Wrote -1 instead of 20.
May 24 14:01:08 device-myhost[644]: qemu-system: vhost_set_vring_kick failed:
Invalid argument (22)
May 24 14:01:08 device-myhost[644]: qemu-system: Failed to set msg fds.
May 24 14:01:08 device-myhost[644]: qemu-system: vhost VQ 0 ring restore
failed: -1: Invalid argument (22)
May 24 14:01:08 device-myhost[644]: qemu-system: Error starting vhost: 22
May 24 14:01:08 device-myhost[644]: qemu-system: Failed to set msg fds.
May 24 14:01:08 device-myhost[644]: qemu-system: vhost_set_vring_call failed:
Resource temporarily unavailable (11)
May 24 14:01:08 device-myhost[644]: qemu-system: Failed to set msg fds.
May 24 14:01:08 device-myhost[644]: qemu-system: vhost_set_vring_call failed:
Resource temporarily unavailable (11)
May 24 14:01:08 device-myhost[644]: qemu-system: Failed to read from slave.
1. Qemu parameters -
"-device",
"vhost-user-fs-device,queue-size=1024,chardev=char0,tag=myfs",
"-object",
"memory-backend-memfd,id=mem,size=4G,share=on"
Any input is appreciated...
Thanks
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