[Bug 1862619] [NEW] "-serial telnet::xxxx, server" causes "Device 'serial0' is in use"

[Bug 1862619] [NEW] "-serial telnet::xxxx, server" causes "Device 'serial0' is in use"

[Thierry Briot]

Public bug reported:

I start qemu version 4.2.50 in a first terminal :

$ sudo ./qemu-system-hppa -boot d -serial telnet::4441,server -drive
if=scsi,bus=0,index=6,file=./hpux.img,format=raw -serial mon:stdio -D
/tmp/foo -nographic -m 512 -d nochain -cdrom
./HPUX_9.05_Installation_Disc_S700.iso -D /tmp/foo -net nic,model=tulip
-net tap

qemu-system-hppa: -serial telnet::4441,server: info: QEMU waiting for
connection on: disconnected:telnet:0.0.0.0:4441,server

In another terminal, I launch "telnet localhost 4441"

And in the qemu window I have the following error:

Unexpected error in qemu_chr_fe_init() at chardev/char-fe.c:220:
qemu-system-hppa: Device 'serial0' is in use

** Affects: qemu
     Importance: Undecided
         Status: New

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Title:
  "-serial telnet::xxxx,server" causes "Device 'serial0' is in use"

Status in QEMU:
  New

Bug description:
  I start qemu version 4.2.50 in a first terminal :

  $ sudo ./qemu-system-hppa -boot d -serial telnet::4441,server -drive
  if=scsi,bus=0,index=6,file=./hpux.img,format=raw -serial mon:stdio -D
  /tmp/foo -nographic -m 512 -d nochain -cdrom
  ./HPUX_9.05_Installation_Disc_S700.iso -D /tmp/foo -net
  nic,model=tulip  -net tap

  qemu-system-hppa: -serial telnet::4441,server: info: QEMU waiting for
  connection on: disconnected:telnet:0.0.0.0:4441,server

  In another terminal, I launch "telnet localhost 4441"

  And in the qemu window I have the following error:

  Unexpected error in qemu_chr_fe_init() at chardev/char-fe.c:220:
  qemu-system-hppa: Device 'serial0' is in use

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[Bug 1862619] Re: "-serial telnet::xxxx, server" causes "Device 'serial0' is in use"

[Laurent Vivier]

Try top put "-serial mon:stdio" before "-serial telnet::4441,server"

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Title:
  "-serial telnet::xxxx,server" causes "Device 'serial0' is in use"

Status in QEMU:
  New

Bug description:
  I start qemu version 4.2.50 in a first terminal :

  $ sudo ./qemu-system-hppa -boot d -serial telnet::4441,server -drive
  if=scsi,bus=0,index=6,file=./hpux.img,format=raw -serial mon:stdio -D
  /tmp/foo -nographic -m 512 -d nochain -cdrom
  ./HPUX_9.05_Installation_Disc_S700.iso -D /tmp/foo -net
  nic,model=tulip  -net tap

  qemu-system-hppa: -serial telnet::4441,server: info: QEMU waiting for
  connection on: disconnected:telnet:0.0.0.0:4441,server

  In another terminal, I launch "telnet localhost 4441"

  And in the qemu window I have the following error:

  Unexpected error in qemu_chr_fe_init() at chardev/char-fe.c:220:
  qemu-system-hppa: Device 'serial0' is in use

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[Bug 1862619] Re: "-serial telnet::xxxx, server" causes "Device 'serial0' is in use"

[Thierry Briot]

Effectively, no more error !
Now, my hppa machine is booted on its installation support for HP-UX 10.20, et I am connected with telnet in an other terminal. I don't know what I must enter now (on a real machine, the installation starts automatically, if I remember well what I did in 1990 !)

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Title:
  "-serial telnet::xxxx,server" causes "Device 'serial0' is in use"

Status in QEMU:
  New

Bug description:
  I start qemu version 4.2.50 in a first terminal :

  $ sudo ./qemu-system-hppa -boot d -serial telnet::4441,server -drive
  if=scsi,bus=0,index=6,file=./hpux.img,format=raw -serial mon:stdio -D
  /tmp/foo -nographic -m 512 -d nochain -cdrom
  ./HPUX_9.05_Installation_Disc_S700.iso -D /tmp/foo -net
  nic,model=tulip  -net tap

  qemu-system-hppa: -serial telnet::4441,server: info: QEMU waiting for
  connection on: disconnected:telnet:0.0.0.0:4441,server

  In another terminal, I launch "telnet localhost 4441"

  And in the qemu window I have the following error:

  Unexpected error in qemu_chr_fe_init() at chardev/char-fe.c:220:
  qemu-system-hppa: Device 'serial0' is in use

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[Bug 1862619] Re: "-serial telnet::xxxx, server" causes "Device 'serial0' is in use"

[Thierry Briot]

If I use an installation support HP-UX 11.00, the installation starts automatically. Then, it finds no disk for installation, but I will work on the drive option of qemu to resolve this trouble.
Thanks a lot for your help !

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Title:
  "-serial telnet::xxxx,server" causes "Device 'serial0' is in use"

Status in QEMU:
  New

Bug description:
  I start qemu version 4.2.50 in a first terminal :

  $ sudo ./qemu-system-hppa -boot d -serial telnet::4441,server -drive
  if=scsi,bus=0,index=6,file=./hpux.img,format=raw -serial mon:stdio -D
  /tmp/foo -nographic -m 512 -d nochain -cdrom
  ./HPUX_9.05_Installation_Disc_S700.iso -D /tmp/foo -net
  nic,model=tulip  -net tap

  qemu-system-hppa: -serial telnet::4441,server: info: QEMU waiting for
  connection on: disconnected:telnet:0.0.0.0:4441,server

  In another terminal, I launch "telnet localhost 4441"

  And in the qemu window I have the following error:

  Unexpected error in qemu_chr_fe_init() at chardev/char-fe.c:220:
  qemu-system-hppa: Device 'serial0' is in use

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[Bug 1862619] Re: "-serial telnet::xxxx, server" causes "Device 'serial0' is in use"

[bpotato]

I would observe that it would be much better if the order of the -serial
arguments did not matter so much.  I know gcc has the same sort of
madness (for instance), but it sure isn't intuitive.

But in my case, when you do the -serial things out of order, you end up with a segfault.
That can't be the intended behavior.

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Title:
  "-serial telnet::xxxx,server" causes "Device 'serial0' is in use"

Status in QEMU:
  New

Bug description:
  I start qemu version 4.2.50 in a first terminal :

  $ sudo ./qemu-system-hppa -boot d -serial telnet::4441,server -drive
  if=scsi,bus=0,index=6,file=./hpux.img,format=raw -serial mon:stdio -D
  /tmp/foo -nographic -m 512 -d nochain -cdrom
  ./HPUX_9.05_Installation_Disc_S700.iso -D /tmp/foo -net
  nic,model=tulip  -net tap

  qemu-system-hppa: -serial telnet::4441,server: info: QEMU waiting for
  connection on: disconnected:telnet:0.0.0.0:4441,server

  In another terminal, I launch "telnet localhost 4441"

  And in the qemu window I have the following error:

  Unexpected error in qemu_chr_fe_init() at chardev/char-fe.c:220:
  qemu-system-hppa: Device 'serial0' is in use

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[Bug 1862619] Re: "-serial telnet::xxxx, server" causes "Device 'serial0' is in use"

[Peter Maydell]

Yes, a segfault is definitely a bug. Can you give instructions to
reproduce that (full command line, any necessary images) ? The example
originally reported in this bug doesn't seem to be a segfault.

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Title:
  "-serial telnet::xxxx,server" causes "Device 'serial0' is in use"

Status in QEMU:
  New

Bug description:
  I start qemu version 4.2.50 in a first terminal :

  $ sudo ./qemu-system-hppa -boot d -serial telnet::4441,server -drive
  if=scsi,bus=0,index=6,file=./hpux.img,format=raw -serial mon:stdio -D
  /tmp/foo -nographic -m 512 -d nochain -cdrom
  ./HPUX_9.05_Installation_Disc_S700.iso -D /tmp/foo -net
  nic,model=tulip  -net tap

  qemu-system-hppa: -serial telnet::4441,server: info: QEMU waiting for
  connection on: disconnected:telnet:0.0.0.0:4441,server

  In another terminal, I launch "telnet localhost 4441"

  And in the qemu window I have the following error:

  Unexpected error in qemu_chr_fe_init() at chardev/char-fe.c:220:
  qemu-system-hppa: Device 'serial0' is in use

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[Bug 1862619] Re: "-serial telnet::xxxx, server" causes "Device 'serial0' is in use"

[Thierry Briot]

I'm now using qemu-system-hppa version 5.2.50, and I can put "-serial
mon: stdio" before or after "-serial telnet :: 4441, server" without a
problem.

#qemu-system-hppa --version
QEMU emulator version 5.2.50 (v5.2.0-1300-g0e32462630)
Copyright (c) 2003-2020 Fabrice Bellard and the QEMU Project developers

For me, no more bug.

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Title:
  "-serial telnet::xxxx,server" causes "Device 'serial0' is in use"

Status in QEMU:
  New

Bug description:
  I start qemu version 4.2.50 in a first terminal :

  $ sudo ./qemu-system-hppa -boot d -serial telnet::4441,server -drive
  if=scsi,bus=0,index=6,file=./hpux.img,format=raw -serial mon:stdio -D
  /tmp/foo -nographic -m 512 -d nochain -cdrom
  ./HPUX_9.05_Installation_Disc_S700.iso -D /tmp/foo -net
  nic,model=tulip  -net tap

  qemu-system-hppa: -serial telnet::4441,server: info: QEMU waiting for
  connection on: disconnected:telnet:0.0.0.0:4441,server

  In another terminal, I launch "telnet localhost 4441"

  And in the qemu window I have the following error:

  Unexpected error in qemu_chr_fe_init() at chardev/char-fe.c:220:
  qemu-system-hppa: Device 'serial0' is in use

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[Bug 1862619] Re: "-serial telnet::xxxx, server" causes "Device 'serial0' is in use"

[Thomas Huth]

Ok, since you said that there is no more bug, I'm closing this issue
now.

** Changed in: qemu
       Status: New => Fix Released

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Title:
  "-serial telnet::xxxx,server" causes "Device 'serial0' is in use"

Status in QEMU:
  Fix Released

Bug description:
  I start qemu version 4.2.50 in a first terminal :

  $ sudo ./qemu-system-hppa -boot d -serial telnet::4441,server -drive
  if=scsi,bus=0,index=6,file=./hpux.img,format=raw -serial mon:stdio -D
  /tmp/foo -nographic -m 512 -d nochain -cdrom
  ./HPUX_9.05_Installation_Disc_S700.iso -D /tmp/foo -net
  nic,model=tulip  -net tap

  qemu-system-hppa: -serial telnet::4441,server: info: QEMU waiting for
  connection on: disconnected:telnet:0.0.0.0:4441,server

  In another terminal, I launch "telnet localhost 4441"

  And in the qemu window I have the following error:

  Unexpected error in qemu_chr_fe_init() at chardev/char-fe.c:220:
  qemu-system-hppa: Device 'serial0' is in use

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[Bug 1862619] Re: "-serial telnet::xxxx, server" causes "Device 'serial0' is in use"

[Andrew Scott]

Reporting again. Compiled QEMU from the latest stable Git:

QEMU emulator version 6.2.50 (v6.2.0-529-gfb084237a3)
Copyright (c) 2003-2021 Fabrice Bellard and the QEMU Project developers

Exactly as original post, if I place -serial telnet::4441,server ahead
of -serial mon,stdio on the command line, it dumps core and aborts.

if I flip them, it runs... BUT! The vm console output appears in the
terminal where I launched qemu, I get no output in the telnet session.
That's backwards. I have no access to the qemu console and can't issue
commands to do things like change the CDROM.

full command startup script (this one works but output doesn't happen
where I expect)

#!/bin/sh
CDROM="-cdrom HP-UX-OE-1.iso"
QEMU=/home/ascott/Documents/hpux/qemu/qemu/build/qemu-system-hppa
IMAGE=/home/ascott/Documents/hpux/hpux.img
$QEMU -boot d -serial mon:stdio -serial telnet::4441,server -drive if=scsi,bus=0,index=6,file=$IMAGE,format=raw -nographic -m 512 -d nochain $CDROM  -net nic,model=tulip  -net user

This one dumps core with the serial0 error from the originla post:

#!/bin/sh
CDROM="-cdrom HP-UX-OE-1.iso"
QEMU=/home/ascott/Documents/hpux/qemu/qemu/build/qemu-system-hppa
IMAGE=/home/ascott/Documents/hpux/hpux.img
$QEMU -boot d -serial telnet::4441,server -serial mon:stdio -drive if=scsi,bus=0,index=6,file=$IMAGE,format=raw -nographic -m 512 -d nochain $CDROM  -net nic,model=tulip  -net user

ascott@vmhost01:~/Documents/hpux$ sh ./install-hpux.sh 
qemu-system-hppa: -serial telnet::4441,server: info: QEMU waiting for connection on: disconnected:telnet:0.0.0.0:4441,server=on
Unexpected error in qemu_chr_fe_init() at ../chardev/char-fe.c:220:
qemu-system-hppa: Device 'serial0' is in use
Aborted (core dumped)

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Title:
  "-serial telnet::xxxx,server" causes "Device 'serial0' is in use"

Status in QEMU:
  Fix Released

Bug description:
  I start qemu version 4.2.50 in a first terminal :

  $ sudo ./qemu-system-hppa -boot d -serial telnet::4441,server -drive
  if=scsi,bus=0,index=6,file=./hpux.img,format=raw -serial mon:stdio -D
  /tmp/foo -nographic -m 512 -d nochain -cdrom
  ./HPUX_9.05_Installation_Disc_S700.iso -D /tmp/foo -net
  nic,model=tulip  -net tap

  qemu-system-hppa: -serial telnet::4441,server: info: QEMU waiting for
  connection on: disconnected:telnet:0.0.0.0:4441,server

  In another terminal, I launch "telnet localhost 4441"

  And in the qemu window I have the following error:

  Unexpected error in qemu_chr_fe_init() at chardev/char-fe.c:220:
  qemu-system-hppa: Device 'serial0' is in use

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[Bug 1862619] Re: "-serial telnet::xxxx, server" causes "Device 'serial0' is in use"

[Thomas Huth]

Hi Andrew! The QEMU project does not use this bug tracker anymore -
could you please open a new issue here: https://gitlab.com/qemu-
project/qemu/-/issues - Thanks!

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Title:
  "-serial telnet::xxxx,server" causes "Device 'serial0' is in use"

Status in QEMU:
  Fix Released

Bug description:
  I start qemu version 4.2.50 in a first terminal :

  $ sudo ./qemu-system-hppa -boot d -serial telnet::4441,server -drive
  if=scsi,bus=0,index=6,file=./hpux.img,format=raw -serial mon:stdio -D
  /tmp/foo -nographic -m 512 -d nochain -cdrom
  ./HPUX_9.05_Installation_Disc_S700.iso -D /tmp/foo -net
  nic,model=tulip  -net tap

  qemu-system-hppa: -serial telnet::4441,server: info: QEMU waiting for
  connection on: disconnected:telnet:0.0.0.0:4441,server

  In another terminal, I launch "telnet localhost 4441"

  And in the qemu window I have the following error:

  Unexpected error in qemu_chr_fe_init() at chardev/char-fe.c:220:
  qemu-system-hppa: Device 'serial0' is in use

To manage notifications about this bug go to:
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