[Qemu-devel] [Bug 1180924] [NEW] fails to handle a usb serial port with a specific vendorid

[Qemu-devel] [Bug 1180924] [NEW] fails to handle a usb serial port with a specific vendorid

[Rostislav Devyatov]

Public bug reported:

If I run qemu-system-i386 with arguments
-usb -usbdevice serial:vendorid=1221:pty
(this is what the documentation says about how I shoud add a usb device which has a serial port interface and which has a specific vendor id, I used the documentation located here:
http://qemu.weilnetz.de/qemu-doc.html
), it says 
char device redirected to /dev/pts/<something> (label usbserial0)
qemu-system-i386: -usbdevice serial:vendorid=1221:pty: Property '.vendorid' not found
Aborted
and exits. Moreover, if I try to add such a device to a running machine by typing usb_add serial:vendorid=1221:pty in the machine's control terminal (to reach it, I press ctrl-alt-2), qemu also writes 
char device redirected to /dev/pts/<something> (label usbserial0)
Aborted
to the terminal where I run it from and exits. To the quest OS this looks like a power failure which causes all the programs inside the virtual machine to lose their unsaved data.
I have tested this with qemu-1.5.0-rc2, actually, the issue occured in a similar way since 1.0.1, but did not occur in 0.11.1.
The issue is reproducible always, even if I don't specify any hard disk in the command line, i. e.
$ qemu-system-i386 -usb -usbdevice serial:vendorid=1221:pty
, so I believe it is guest OS -independent.

** Affects: qemu
     Importance: Undecided
         Status: New

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Title:
  fails to handle a usb serial port with a specific vendorid

Status in QEMU:
  New

Bug description:
  If I run qemu-system-i386 with arguments
  -usb -usbdevice serial:vendorid=1221:pty
  (this is what the documentation says about how I shoud add a usb device which has a serial port interface and which has a specific vendor id, I used the documentation located here:
  http://qemu.weilnetz.de/qemu-doc.html
  ), it says 
  char device redirected to /dev/pts/<something> (label usbserial0)
  qemu-system-i386: -usbdevice serial:vendorid=1221:pty: Property '.vendorid' not found
  Aborted
  and exits. Moreover, if I try to add such a device to a running machine by typing usb_add serial:vendorid=1221:pty in the machine's control terminal (to reach it, I press ctrl-alt-2), qemu also writes 
  char device redirected to /dev/pts/<something> (label usbserial0)
  Aborted
  to the terminal where I run it from and exits. To the quest OS this looks like a power failure which causes all the programs inside the virtual machine to lose their unsaved data.
  I have tested this with qemu-1.5.0-rc2, actually, the issue occured in a similar way since 1.0.1, but did not occur in 0.11.1.
  The issue is reproducible always, even if I don't specify any hard disk in the command line, i. e.
  $ qemu-system-i386 -usb -usbdevice serial:vendorid=1221:pty
  , so I believe it is guest OS -independent.

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Re: [Qemu-devel] [Bug 1180924] [NEW] fails to handle a usb serial port with a specific vendorid

[Markus Armbruster]

Rostislav Devyatov <deviatov@gmail.com> writes:

> Public bug reported:
>
> If I run qemu-system-i386 with arguments
> -usb -usbdevice serial:vendorid=1221:pty
> (this is what the documentation says about how I shoud add a usb device which has a serial port interface and which has a specific vendor id, I used the documentation located here:
> http://qemu.weilnetz.de/qemu-doc.html
> ), it says 
> char device redirected to /dev/pts/<something> (label usbserial0)
> qemu-system-i386: -usbdevice serial:vendorid=1221:pty: Property '.vendorid' not found
> Aborted
[...]

Regression; this definitely worked when I wrote docs/qdev-device-use.txt.

git-bisect fingers

    commit 2b0efdc3e116753e349bc3d1888a8520f57e8315
    Author: Gerd Hoffmann <kraxel@redhat.com>
    Date:   Mon Oct 26 15:56:47 2009 +0100

        usb-serial and braille: use qdev for -usbdevice

        Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
        Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

The commit broke it differently, though: "qdev_prop_set: property "QEMU
USB Serial.vendorid" type mismatch".  Property "vendorid"went away much
later.

Gerd, please have a look.

Not a release blocker, since it regressed a long time ago (v0.12).

Re: [Qemu-devel] [Bug 1180924] [NEW] fails to handle a usb serial port with a specific vendorid

[Gerd Hoffmann]

  Hi,

>> (this is what the documentation says about how I shoud add a usb device which has a serial port interface and which has a specific vendor id, I used the documentation located here:
>> http://qemu.weilnetz.de/qemu-doc.html
>> ), it says 
>> char device redirected to /dev/pts/<something> (label usbserial0)
>> qemu-system-i386: -usbdevice serial:vendorid=1221:pty: Property '.vendorid' not found
>> Aborted
> [...]
> 
> Regression; this definitely worked when I wrote docs/qdev-device-use.txt.

> Not a release blocker, since it regressed a long time ago (v0.12).

Guess the docs should be updated, unless someone can come up with a
reasonable use case for the vendorid + deviceid properties.

cheers,
  Gerd

[Qemu-devel] [Bug 1180924] Re: fails to handle a usb serial port with a specific vendorid

[Rostislav Devyatov]

I think the ability to specify a different vendorid + deviceid can be
useful. Suppose there is a USB device such that the specifications are
open and officially published, but the driver is proprietary. (As far as
I know, this is similar to the situation with ATI video cards, but they
are not USB devices.) And I suspect that the driver is buggy (i. e. it
does not send the data according to the specifications). I want to
figure out where exactly it works incorrectly to submit a bug report to
the developer of the driver. Or suppose I have a physical device, but it
works a bit incorrectly. I want to figure out where exactly the problem
is, in the driver or in the device. Since I am not sure that the device
is OK, I don't want to write my own driver and interact with the device,
maybe I will damage it even more. In both cases, I can emulate the
device according to the specifications, install the driver in a guest
system, and then see whether the driver sends correct data or where and
when exactly the data are incorrect.

Anyway, I think it is more or less ok if qemu crashes right after it
starts due to bad command line parameters (nevertherless, the
functionality lost this way could be useful as I explained). But I think
IT IS NOT OK WHEN A WORKING VM WITH PROGRAMS INSIDE CRASHES after user
enters a bad command in the machine's control terminal, unless the user
explicitly requests termination (e. g. enters the q command).

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Title:
  fails to handle a usb serial port with a specific vendorid

Status in QEMU:
  New

Bug description:
  If I run qemu-system-i386 with arguments
  -usb -usbdevice serial:vendorid=1221:pty
  (this is what the documentation says about how I shoud add a usb device which has a serial port interface and which has a specific vendor id, I used the documentation located here:
  http://qemu.weilnetz.de/qemu-doc.html
  ), it says 
  char device redirected to /dev/pts/<something> (label usbserial0)
  qemu-system-i386: -usbdevice serial:vendorid=1221:pty: Property '.vendorid' not found
  Aborted
  and exits. Moreover, if I try to add such a device to a running machine by typing usb_add serial:vendorid=1221:pty in the machine's control terminal (to reach it, I press ctrl-alt-2), qemu also writes 
  char device redirected to /dev/pts/<something> (label usbserial0)
  Aborted
  to the terminal where I run it from and exits. To the quest OS this looks like a power failure which causes all the programs inside the virtual machine to lose their unsaved data.
  I have tested this with qemu-1.5.0-rc2, actually, the issue occured in a similar way since 1.0.1, but did not occur in 0.11.1.
  The issue is reproducible always, even if I don't specify any hard disk in the command line, i. e.
  $ qemu-system-i386 -usb -usbdevice serial:vendorid=1221:pty
  , so I believe it is guest OS -independent.

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https://bugs.launchpad.net/qemu/+bug/1180924/+subscriptions

[Qemu-devel] [Bug 1180924] Re: fails to handle a usb serial port with a specific vendorid

[felix]

Regressed in commit f29783f72ea77dfbd7ea0c993d62d253d4c4e023.

I've just run into this in a similar circumstance: trying to reverse-
engineer a driver for a phone to which I can only connect via Bluetooth.
No problem, I can just have it pretend to be a USB device. Except that I
can't, because the driver won't recognise it.

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Title:
  fails to handle a usb serial port with a specific vendorid

Status in QEMU:
  New

Bug description:
  If I run qemu-system-i386 with arguments
  -usb -usbdevice serial:vendorid=1221:pty
  (this is what the documentation says about how I shoud add a usb device which has a serial port interface and which has a specific vendor id, I used the documentation located here:
  http://qemu.weilnetz.de/qemu-doc.html
  ), it says 
  char device redirected to /dev/pts/<something> (label usbserial0)
  qemu-system-i386: -usbdevice serial:vendorid=1221:pty: Property '.vendorid' not found
  Aborted
  and exits. Moreover, if I try to add such a device to a running machine by typing usb_add serial:vendorid=1221:pty in the machine's control terminal (to reach it, I press ctrl-alt-2), qemu also writes 
  char device redirected to /dev/pts/<something> (label usbserial0)
  Aborted
  to the terminal where I run it from and exits. To the quest OS this looks like a power failure which causes all the programs inside the virtual machine to lose their unsaved data.
  I have tested this with qemu-1.5.0-rc2, actually, the issue occured in a similar way since 1.0.1, but did not occur in 0.11.1.
  The issue is reproducible always, even if I don't specify any hard disk in the command line, i. e.
  $ qemu-system-i386 -usb -usbdevice serial:vendorid=1221:pty
  , so I believe it is guest OS -independent.

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https://bugs.launchpad.net/qemu/+bug/1180924/+subscriptions

[Qemu-devel] [Bug 1180924] Re: fails to handle a usb serial port with a specific vendorid

[Thomas Huth]

The crash has now been fixed here:
http://git.qemu.org/?p=qemu.git;a=commitdiff;h=aa612b364ecbe1dc
Please also note that the "-usbdevice serial" syntax is considered as deprecated nowadays - use "-device usb-serial" instead.

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

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You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1180924

Title:
  fails to handle a usb serial port with a specific vendorid

Status in QEMU:
  Fix Committed

Bug description:
  If I run qemu-system-i386 with arguments
  -usb -usbdevice serial:vendorid=1221:pty
  (this is what the documentation says about how I shoud add a usb device which has a serial port interface and which has a specific vendor id, I used the documentation located here:
  http://qemu.weilnetz.de/qemu-doc.html
  ), it says 
  char device redirected to /dev/pts/<something> (label usbserial0)
  qemu-system-i386: -usbdevice serial:vendorid=1221:pty: Property '.vendorid' not found
  Aborted
  and exits. Moreover, if I try to add such a device to a running machine by typing usb_add serial:vendorid=1221:pty in the machine's control terminal (to reach it, I press ctrl-alt-2), qemu also writes 
  char device redirected to /dev/pts/<something> (label usbserial0)
  Aborted
  to the terminal where I run it from and exits. To the quest OS this looks like a power failure which causes all the programs inside the virtual machine to lose their unsaved data.
  I have tested this with qemu-1.5.0-rc2, actually, the issue occured in a similar way since 1.0.1, but did not occur in 0.11.1.
  The issue is reproducible always, even if I don't specify any hard disk in the command line, i. e.
  $ qemu-system-i386 -usb -usbdevice serial:vendorid=1221:pty
  , so I believe it is guest OS -independent.

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1180924/+subscriptions

[Qemu-devel] [Bug 1180924] Re: fails to handle a usb serial port with a specific vendorid

[Thomas Huth]

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

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Title:
  fails to handle a usb serial port with a specific vendorid

Status in QEMU:
  Fix Released

Bug description:
  If I run qemu-system-i386 with arguments
  -usb -usbdevice serial:vendorid=1221:pty
  (this is what the documentation says about how I shoud add a usb device which has a serial port interface and which has a specific vendor id, I used the documentation located here:
  http://qemu.weilnetz.de/qemu-doc.html
  ), it says 
  char device redirected to /dev/pts/<something> (label usbserial0)
  qemu-system-i386: -usbdevice serial:vendorid=1221:pty: Property '.vendorid' not found
  Aborted
  and exits. Moreover, if I try to add such a device to a running machine by typing usb_add serial:vendorid=1221:pty in the machine's control terminal (to reach it, I press ctrl-alt-2), qemu also writes 
  char device redirected to /dev/pts/<something> (label usbserial0)
  Aborted
  to the terminal where I run it from and exits. To the quest OS this looks like a power failure which causes all the programs inside the virtual machine to lose their unsaved data.
  I have tested this with qemu-1.5.0-rc2, actually, the issue occured in a similar way since 1.0.1, but did not occur in 0.11.1.
  The issue is reproducible always, even if I don't specify any hard disk in the command line, i. e.
  $ qemu-system-i386 -usb -usbdevice serial:vendorid=1221:pty
  , so I believe it is guest OS -independent.

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1180924/+subscriptions