[Qemu-devel] [Bug 1015978] [NEW] USB serial port regression after qemu-kvm_1.0+dfsg-8

[Attila Lendvai]

Public bug reported:

Host is debian testing, on x64.

Guest is a windoze xp.

I'm flashing a mobile Point of Sale (POS) terminal using its proprietary
windoze program that communicates on serial ports. The POS device has a
USB port which is acting as a serial port (CDC to USB UART).

Up to and including qemu-kvm_1.0+dfsg-8_amd64, flashing works. But with
anything afterwards (as of today, up to 1.0+dfsg-11), when i press the
"download" button, the windoze application hangs and needs to be killed.
I didn't notice any other visible difference, attaching the host device
to the guest using virsh, and everything else seems to work fine.

** Affects: qemu
     Importance: Undecided
         Status: New

** Description changed:

  Host is debian testing, on x64.
  
  Guest is a windoze xp.
  
  I'm flashing a mobile Point of Sale (POS) terminal using its proprietary
  windoze program that communicates on serial ports. The POS device has a
  USB port which is acting as a serial port (CDC to USB UART).
  
- Up to and including 1.0+dfsg-8, flashing works. But with anything
- afterwards (as of today, up to 1.0+dfsg-11), when i press the "download"
- button, the windoze application hangs and needs to be killed. I didn't
- notice any other visible difference, attaching the host device to the
- guest using virsh, and everything else seems to work fine.
+ Up to and including qemu-kvm_1.0+dfsg-8_amd64, flashing works. But with
+ anything afterwards (as of today, up to 1.0+dfsg-11), when i press the
+ "download" button, the windoze application hangs and needs to be killed.
+ I didn't notice any other visible difference, attaching the host device
+ to the guest using virsh, and everything else seems to work fine.

** Summary changed:

- USB serial port regression after 1.0+dfsg-8
+ USB serial port regression after qemu-kvm_1.0+dfsg-8

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https://bugs.launchpad.net/bugs/1015978

Title:
  USB serial port regression after qemu-kvm_1.0+dfsg-8

Status in QEMU:
  New

Bug description:
  Host is debian testing, on x64.

  Guest is a windoze xp.

  I'm flashing a mobile Point of Sale (POS) terminal using its
  proprietary windoze program that communicates on serial ports. The POS
  device has a USB port which is acting as a serial port (CDC to USB
  UART).

  Up to and including qemu-kvm_1.0+dfsg-8_amd64, flashing works. But
  with anything afterwards (as of today, up to 1.0+dfsg-11), when i
  press the "download" button, the windoze application hangs and needs
  to be killed. I didn't notice any other visible difference, attaching
  the host device to the guest using virsh, and everything else seems to
  work fine.

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