[Qemu-devel] [Bug 1544524] Re: "info chardev" not showing the real port in use

[Prem Anand <1544524@bugs.launchpad.net>]

Also on quickly connecting to the ports via the netcat tool (hoping that it would make qemu to change its state from disconnected)
I see the following error "Error in getpeername: Transport endpoint is not connected"

pharidos@uks2:~/$ qemu-system-x86_64 --enable-kvm -hda Sisk.qcow2 -serial telnet::0,server,nowait -serial telnet::0,server,nowait -nographic 
QEMU 2.5.0 monitor - type 'help' for more information
(qemu) info chardev
parallel0: filename=null
serial1: filename=disconnected:telnet::0,server
serial0: filename=disconnected:telnet::0,server
compat_monitor0: filename=stdio
(qemu) 

# COnnect quickly to the serial ports via netcat
pharidos@kvm:~/$ netstat -tupan 2>/dev/null | grep "LISTEN.* $(pgrep -f qemu)/qemu" | cut -d: -f2 | cut -d' ' -f1
45814
42522
pharidos@kvm:~/$ ports=$(netstat -tupan 2>/dev/null | grep "LISTEN.* $(pgrep -f qemu)/qemu" | cut -d: -f2 | cut -d' ' -f1)
pharidos@kvm:~/$ for p in $ports; do echo | nc -w0 kvm $p >/dev/null; done

# Check the port status again. We see the the error "Error in getpeername: Transport endpoint is not connected"
(qemu) info chardev
parallel0: filename=null
serial1: filename=Error in getpeername: Transport endpoint is not connected

serial0: filename=Error in getpeername: Transport endpoint is not
connected

compat_monitor0: filename=stdio
(qemu)

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https://bugs.launchpad.net/bugs/1544524

Title:
  "info chardev" not showing the real port in use

Status in QEMU:
  New

Bug description:
  With Qemu 2.1.2
  ===============
  pharidos@uks2:~$ qemu-system-x86_64 -hda Disk.qcow2 -serial telnet::0,server,nowait -nographic
  QEMU 2.1.2 monitor - type 'help' for more information
  (qemu) info chardev
  parallel0: filename=null
  serial0: filename=telnet:0.0.0.0:44189,server
                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^ serial console is using port 44189
  compat_monitor0: filename=stdio
  (qemu)

  With Qemu 2.5.0
  ===============
  pharidos@uks2:~$ qemu-system-x86_64 -hda Disk.qcow2 -serial  telnet::0,server,nowait -nographic
  QEMU 2.5.0 monitor - type 'help' for more information
  (qemu) info chardev
  parallel0: filename=null
  serial0: filename=disconnected:telnet::0,server
                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ serial console port not shown
  compat_monitor0: filename=stdio
  (qemu)

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