[Qemu-devel] [Bug 1381879] Re: can not run vm with a serial port

[Thomas Huth]

Opening a socket with the name of a device file can not work, you've got
to specify a different name for a unix socket instead. So this is not a
bug.

** Changed in: qemu
       Status: New => Invalid

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https://bugs.launchpad.net/bugs/1381879

Title:
  can not run vm with a serial port

Status in QEMU:
  Invalid

Bug description:
  environment:
  server: centOS 6.5, 3.14.19, x86_64
  qemu-kvm: QEMU PC emulator version 0.12.1 (qemu-kvm-0.12.1.2), Copyright (c) 
2003-2008 Fabrice Bellard
  qemu-system-x86_64 :QEMU emulator version 1.2.0 (qemu-kvm-1.2.0), Copyright 
(c) 2003-2008 Fabrice Bellard
  virt-manager: 0.9.0

  VM: centOS 6.5, 3.12.30, x86_64

  reproduce step:
  1. add serial device
  2. select device type: unix socket
                   device parameters: path=/dev/ttyS0
                                                         mode=client 
mode(connect)
  3. run the VM

  phenomenon:
  Error starting domain: internal error process exited while connecting to 
monitor: qemu-kvm: -chardev 
socket,id=charserial0,path=/dev/ttyS0,server,nowait: socket bind failed: 
Address already in use
  qemu-kvm: -chardev socket,id=charserial0,path=/dev/ttyS0,server,nowait: 
chardev: opening backend "socket" failed

  
  Traceback (most recent call last):
    File "/usr/share/virt-manager/virtManager/asyncjob.py", line 44, in 
cb_wrapper
      callback(asyncjob, *args, **kwargs)
    File "/usr/share/virt-manager/virtManager/asyncjob.py", line 65, in tmpcb
      callback(*args, **kwargs)
    File "/usr/share/virt-manager/virtManager/domain.py", line 1114, in startup
      self._backend.create()
    File "/usr/lib64/python2.6/site-packages/libvirt.py", line 678, in create
      if ret == -1: raise libvirtError ('virDomainCreate() failed', dom=self)
  libvirtError: internal error process exited while connecting to monitor: 
qemu-kvm: -chardev socket,id=charserial0,path=/dev/ttyS0,server,nowait: socket 
bind failed: Address already in use
  qemu-kvm: -chardev socket,id=charserial0,path=/dev/ttyS0,server,nowait: 
chardev: opening backend "socket" failed

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