[Bug 1501345] Re: linux-image-3.13.0-65-generic breaks serial communication

2017-03-16 Thread Jon Watte 
This bug is back in kernel 4.8 series. I'm seeing it in pyserial, using
the Cura 2.4 application, on current Ubuntu 16.04 LTS install.


** Also affects: linux-lts-xenial (Ubuntu)
   Importance: Undecided
   Status: New

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Title:
  linux-image-3.13.0-65-generic breaks serial communication

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[Bug 1501345] Re: linux-image-3.13.0-65-generic breaks serial communication

2015-11-08 Thread Chris L8 
** Changed in: linux-lts-trusty (Ubuntu)
   Status: Fix Committed => Fix Released

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Title:
  linux-image-3.13.0-65-generic breaks serial communication

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Re: [Bug 1501345] Re: linux-image-3.13.0-65-generic breaks serial communication

2015-10-24 Thread aradhya 
yes the serial functioning is working properly thnx for ur cooperation

On Tue, Oct 20, 2015 at 1:53 PM, bouke  wrote:

> Seems to be fixed in 3.13.0-66.107, which is available for Ubuntu 14.04
> now.
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1501345
>
> Title:
>   linux-image-3.13.0-65-generic breaks serial communication
>
> Status in linux-lts-trusty package in Ubuntu:
>   Confirmed
>
> Bug description:
>   Today after updating to the linux-image-3.13.0-65-generic 3.13.0-65
>   Kernel on Lubuntu 14.04.3 LTS two different programs that rely on
>   PySerial quit working. miniterm.py and my ROS (Robot Operating System)
>   based Python node quit working.
>
>   When rebooted and selected 3.13.0-63-generic via GRUB everything
>   worked again.
>
>   Here are the steps to create the issue with miniterm.py, note that you
>   need something connected via a USB to Serial adapter for this to work.
>   I am working with a Parallax Activity Board, but an Arduino should
>   also exhibit the same behavior.
>
>   sudo apt install linux-image-3.13.0-65-generic
>   sudo apt install linux-image-extra-3.13.0-65-generic
>   reboot
>
>$ miniterm.py /dev/ttyUSB0 115200
>   --- Miniterm on /dev/ttyUSB0: 115200,8,N,1 ---
>   --- Quit: Ctrl+]  |  Menu: Ctrl+T | Help: Ctrl+T followed by Ctrl+H ---
>
>   --- exit ---
>   Exception in thread Thread-1:
>   Traceback (most recent call last):
> File "/usr/lib/python2.7/threading.py", line 810, in __bootstrap_inner
>   self.run()
> File "/usr/lib/python2.7/threading.py", line 763, in run
>   self.__target(*self.__args, **self.__kwargs)
> File "/usr/bin/miniterm.py", line 220, in reader
>   data = character(self.serial.read(1))
> File "/usr/lib/python2.7/dist-packages/serial/serialposix.py", line
> 460, in read
>   raise SerialException('device reports readiness to read but returned
> no data (device disconnected?)')
>   SerialException: device reports readiness to read but returned no data
> (device disconnected?)
>
>   Reverting to the 3.13.0-63 kernel allows miniterm.py and other Python
>   Serial based programs to work normally.
>
> To manage notifications about this bug go to:
>
> https://bugs.launchpad.net/ubuntu/+source/linux-lts-trusty/+bug/1501345/+subscriptions
>

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Title:
  linux-image-3.13.0-65-generic breaks serial communication

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Re: [Bug 1501345] Re: linux-image-3.13.0-65-generic breaks serial communication

2015-10-24 Thread aradhya 
I initially encountered the same error on kernel 3.13.0.66 so I m still
investigating if this error comes back to the surface and trying to
recreate what caused so I wud not want the thread to be closed as yet.
Although since the last few trials I haven't encountered the bug again
On 24 Oct 2015 02:35, "Gawarmel"  wrote:

> Confirmed. Bug's gone with kernel upgrade to 3.13.0-66.108. Thanks! Can
> we close this?
>
> ** Changed in: linux-lts-trusty (Ubuntu)
>Status: Confirmed => Fix Committed
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1501345
>
> Title:
>   linux-image-3.13.0-65-generic breaks serial communication
>
> Status in linux-lts-trusty package in Ubuntu:
>   Fix Committed
>
> Bug description:
>   Today after updating to the linux-image-3.13.0-65-generic 3.13.0-65
>   Kernel on Lubuntu 14.04.3 LTS two different programs that rely on
>   PySerial quit working. miniterm.py and my ROS (Robot Operating System)
>   based Python node quit working.
>
>   When rebooted and selected 3.13.0-63-generic via GRUB everything
>   worked again.
>
>   Here are the steps to create the issue with miniterm.py, note that you
>   need something connected via a USB to Serial adapter for this to work.
>   I am working with a Parallax Activity Board, but an Arduino should
>   also exhibit the same behavior.
>
>   sudo apt install linux-image-3.13.0-65-generic
>   sudo apt install linux-image-extra-3.13.0-65-generic
>   reboot
>
>$ miniterm.py /dev/ttyUSB0 115200
>   --- Miniterm on /dev/ttyUSB0: 115200,8,N,1 ---
>   --- Quit: Ctrl+]  |  Menu: Ctrl+T | Help: Ctrl+T followed by Ctrl+H ---
>
>   --- exit ---
>   Exception in thread Thread-1:
>   Traceback (most recent call last):
> File "/usr/lib/python2.7/threading.py", line 810, in __bootstrap_inner
>   self.run()
> File "/usr/lib/python2.7/threading.py", line 763, in run
>   self.__target(*self.__args, **self.__kwargs)
> File "/usr/bin/miniterm.py", line 220, in reader
>   data = character(self.serial.read(1))
> File "/usr/lib/python2.7/dist-packages/serial/serialposix.py", line
> 460, in read
>   raise SerialException('device reports readiness to read but returned
> no data (device disconnected?)')
>   SerialException: device reports readiness to read but returned no data
> (device disconnected?)
>
>   Reverting to the 3.13.0-63 kernel allows miniterm.py and other Python
>   Serial based programs to work normally.
>
> To manage notifications about this bug go to:
>
> https://bugs.launchpad.net/ubuntu/+source/linux-lts-trusty/+bug/1501345/+subscriptions
>

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Title:
  linux-image-3.13.0-65-generic breaks serial communication

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[Bug 1501345] Re: linux-image-3.13.0-65-generic breaks serial communication

2015-10-23 Thread Rob Ward 
I can confirm that my Weather
sensors->Arduino->USB->(Python+Apache+XUbuntu) serial communication is
back to reporting my weather 24/7 as normal.  Your assistance in fixing
this quickly for us is greatly appreciated.

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Title:
  linux-image-3.13.0-65-generic breaks serial communication

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[Bug 1501345] Re: linux-image-3.13.0-65-generic breaks serial communication

2015-10-23 Thread Gawarmel 
Confirmed. Bug's gone with kernel upgrade to 3.13.0-66.108. Thanks! Can
we close this?

** Changed in: linux-lts-trusty (Ubuntu)
   Status: Confirmed => Fix Committed

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Title:
  linux-image-3.13.0-65-generic breaks serial communication

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Re: [Bug 1501345] Re: linux-image-3.13.0-65-generic breaks serial communication

2015-10-23 Thread aradhya 
cheers the bug is no more present after latest kernel update

On Wed, Oct 21, 2015 at 8:50 AM, Sebastian Unger 
wrote:

> Same here. Could not reproduce the issue on 3.13.0-66.108 any more.
> Cheers
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1501345
>
> Title:
>   linux-image-3.13.0-65-generic breaks serial communication
>
> Status in linux-lts-trusty package in Ubuntu:
>   Confirmed
>
> Bug description:
>   Today after updating to the linux-image-3.13.0-65-generic 3.13.0-65
>   Kernel on Lubuntu 14.04.3 LTS two different programs that rely on
>   PySerial quit working. miniterm.py and my ROS (Robot Operating System)
>   based Python node quit working.
>
>   When rebooted and selected 3.13.0-63-generic via GRUB everything
>   worked again.
>
>   Here are the steps to create the issue with miniterm.py, note that you
>   need something connected via a USB to Serial adapter for this to work.
>   I am working with a Parallax Activity Board, but an Arduino should
>   also exhibit the same behavior.
>
>   sudo apt install linux-image-3.13.0-65-generic
>   sudo apt install linux-image-extra-3.13.0-65-generic
>   reboot
>
>$ miniterm.py /dev/ttyUSB0 115200
>   --- Miniterm on /dev/ttyUSB0: 115200,8,N,1 ---
>   --- Quit: Ctrl+]  |  Menu: Ctrl+T | Help: Ctrl+T followed by Ctrl+H ---
>
>   --- exit ---
>   Exception in thread Thread-1:
>   Traceback (most recent call last):
> File "/usr/lib/python2.7/threading.py", line 810, in __bootstrap_inner
>   self.run()
> File "/usr/lib/python2.7/threading.py", line 763, in run
>   self.__target(*self.__args, **self.__kwargs)
> File "/usr/bin/miniterm.py", line 220, in reader
>   data = character(self.serial.read(1))
> File "/usr/lib/python2.7/dist-packages/serial/serialposix.py", line
> 460, in read
>   raise SerialException('device reports readiness to read but returned
> no data (device disconnected?)')
>   SerialException: device reports readiness to read but returned no data
> (device disconnected?)
>
>   Reverting to the 3.13.0-63 kernel allows miniterm.py and other Python
>   Serial based programs to work normally.
>
> To manage notifications about this bug go to:
>
> https://bugs.launchpad.net/ubuntu/+source/linux-lts-trusty/+bug/1501345/+subscriptions
>

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Title:
  linux-image-3.13.0-65-generic breaks serial communication

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Re: [Bug 1501345] Re: linux-image-3.13.0-65-generic breaks serial communication

2015-10-23 Thread aradhya 
thank u the bug seems to be fixed

On Tue, Oct 20, 2015 at 1:53 PM, bouke  wrote:

> Seems to be fixed in 3.13.0-66.107, which is available for Ubuntu 14.04
> now.
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1501345
>
> Title:
>   linux-image-3.13.0-65-generic breaks serial communication
>
> Status in linux-lts-trusty package in Ubuntu:
>   Confirmed
>
> Bug description:
>   Today after updating to the linux-image-3.13.0-65-generic 3.13.0-65
>   Kernel on Lubuntu 14.04.3 LTS two different programs that rely on
>   PySerial quit working. miniterm.py and my ROS (Robot Operating System)
>   based Python node quit working.
>
>   When rebooted and selected 3.13.0-63-generic via GRUB everything
>   worked again.
>
>   Here are the steps to create the issue with miniterm.py, note that you
>   need something connected via a USB to Serial adapter for this to work.
>   I am working with a Parallax Activity Board, but an Arduino should
>   also exhibit the same behavior.
>
>   sudo apt install linux-image-3.13.0-65-generic
>   sudo apt install linux-image-extra-3.13.0-65-generic
>   reboot
>
>$ miniterm.py /dev/ttyUSB0 115200
>   --- Miniterm on /dev/ttyUSB0: 115200,8,N,1 ---
>   --- Quit: Ctrl+]  |  Menu: Ctrl+T | Help: Ctrl+T followed by Ctrl+H ---
>
>   --- exit ---
>   Exception in thread Thread-1:
>   Traceback (most recent call last):
> File "/usr/lib/python2.7/threading.py", line 810, in __bootstrap_inner
>   self.run()
> File "/usr/lib/python2.7/threading.py", line 763, in run
>   self.__target(*self.__args, **self.__kwargs)
> File "/usr/bin/miniterm.py", line 220, in reader
>   data = character(self.serial.read(1))
> File "/usr/lib/python2.7/dist-packages/serial/serialposix.py", line
> 460, in read
>   raise SerialException('device reports readiness to read but returned
> no data (device disconnected?)')
>   SerialException: device reports readiness to read but returned no data
> (device disconnected?)
>
>   Reverting to the 3.13.0-63 kernel allows miniterm.py and other Python
>   Serial based programs to work normally.
>
> To manage notifications about this bug go to:
>
> https://bugs.launchpad.net/ubuntu/+source/linux-lts-trusty/+bug/1501345/+subscriptions
>

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Title:
  linux-image-3.13.0-65-generic breaks serial communication

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[Bug 1501345] Re: linux-image-3.13.0-65-generic breaks serial communication

2015-10-20 Thread bouke 
Seems to be fixed in 3.13.0-66.107, which is available for Ubuntu 14.04
now.

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Title:
  linux-image-3.13.0-65-generic breaks serial communication

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[Bug 1501345] Re: linux-image-3.13.0-65-generic breaks serial communication

2015-10-20 Thread Sebastian Unger 
Same here. Could not reproduce the issue on 3.13.0-66.108 any more.
Cheers

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Title:
  linux-image-3.13.0-65-generic breaks serial communication

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[Bug 1501345] Re: linux-image-3.13.0-65-generic breaks serial communication

2015-10-18 Thread aradhya 
if you use try  and except serial.serialutil.SerialException 
 then u dont encounter the error 
raise SerialException('device reports readiness to read but returned no data 
(device disconnected?)')

however the output does not synchronize properly

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Title:
  linux-image-3.13.0-65-generic breaks serial communication

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[Bug 1501345] Re: linux-image-3.13.0-65-generic breaks serial communication

2015-10-17 Thread kerlyn 
I agree with @rob-gaddi, this appears to be a driver bug.  I am running
a C application called tunslip, which is provided as part of the Contiki
OS distro.  select() indicates there are bytes available on  even
when this is not the case.  A subsequent fread() on the serial device
returns zero bytes, resulting in an exception.

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Title:
  linux-image-3.13.0-65-generic breaks serial communication

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