Can't not login "wait_for_serial_login(timeout=timeout)"

[khaidox]

This function has issue. It can't login to VM.
2023-09-03 21:03:50,332 avocado.virttest.ip_sniffing DEBUG| Updated HWADDR (52:54:00:0f:e8:72)<->(192.168.122.32) IP pair into address cache
2023-09-03 21:05:55,751 avocado.virttest.utils_net WARNI| Error occur when update VM address cache: Login timeout expired (output: 'exceeded 120 s timeout')

[stdlog] 2023-09-03 22:07:21,289 avocado.virttest.env_process WARNI| Could not get host cpu family
[stderr] Traceback (most recent call last):
[stderr] File "/home/VMs/.pyenv/versions/env-avocado/lib/python3.10/site-packages/avocado_vt/plugins/vt_runner.py", line 69, in runTest
[stderr] raise self.__status # pylint: disable-msg=E0702
[stderr] File "/home/VMs/.pyenv/versions/env-avocado/lib/python3.10/site-packages/avocado_vt/test.py", line 145, in setUp
[stderr] self._runTest()
[stderr] File "/home/VMs/.pyenv/versions/env-avocado/lib/python3.10/site-packages/avocado_vt/test.py", line 263, in _runTest
[stderr] run_func(self, params, env)
[stderr] File "/home/VMs/.pyenv/versions/env-avocado/lib/python3.10/site-packages/virttest/error_context.py", line 135, in new_fn
[stderr] return fn(*args, **kwargs)
[stderr] File "/home/VMs/avocado/data/avocado-vt/virttest/test-providers.d/downloads/io-github-autotest-libvirt/libvirt/tests/src/sample/sample.py", line 28, in run
[stderr] session_serial = vm.wait_for_serial_login(timeout=login_timeout, username="root", password="root")
[stderr] File "/home/VMs/.pyenv/versions/env-avocado/lib/python3.10/site-packages/virttest/virt_vm.py", line 1414, in wait_for_serial_login
[stderr] raise remote.LoginTimeoutError('exceeded %s s timeout' %
[stderr] aexpect.remote.LoginTimeoutError: Login timeout expired (output: 'exceeded 60 s timeout')