error : virJSONValueFromString:1685 : internal error: cannot parse json : parse error: premature EOF

Software environment

  • Operating system:Debian 12
  • Architecture: X86_64
  • kernel version:5.15.70
  • libvirt version:9.6.0
  • Hypervisor and version: qemu 7.2.4

Description of problem

Some errors when I start libvirtd libvirtd[16006]: 16076: error : virJSONValueFromString:1685 : internal error: cannot parse json : parse error: premature EOF

                                                                      (right here) ------^

libvirtd[16006]: 16076: error : nodeDeviceParseMdevctlJSON:1183 : internal error: mdevctl JSON response contains no devices libvirtd[16006]: 16076: nodeDeviceUpdateMediatedDevices:1765 : internal error: failed to query mdevs from mdevctl: (null)

libvirt works fine.

Additional information