| 2019-01-31 14:50:07 |
Dave Jones |
bug |
|
|
added bug |
| 2019-01-31 14:50:19 |
Dave Jones |
bug |
|
|
added subscriber Ubuntu Sponsors Team |
| 2019-02-02 19:15:56 |
Mathew Hodson |
rpi.gpio (Ubuntu): importance |
Undecided |
Low |
|
| 2019-02-05 18:21:51 |
Łukasz Zemczak |
rpi.gpio (Ubuntu): status |
New |
Fix Committed |
|
| 2019-02-05 18:21:54 |
Łukasz Zemczak |
removed subscriber Ubuntu Sponsors Team |
|
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|
| 2019-02-05 18:22:19 |
Łukasz Zemczak |
nominated for series |
|
Ubuntu Cosmic |
|
| 2019-02-05 18:22:19 |
Łukasz Zemczak |
bug task added |
|
rpi.gpio (Ubuntu Cosmic) |
|
| 2019-02-05 18:22:19 |
Łukasz Zemczak |
nominated for series |
|
Ubuntu Bionic |
|
| 2019-02-05 18:22:19 |
Łukasz Zemczak |
bug task added |
|
rpi.gpio (Ubuntu Bionic) |
|
| 2019-03-14 16:05:31 |
Dave Jones |
description |
The current release of RPi.GPIO (0.63) expects to find hardware revision information under /proc/cpuinfo. This exists under armhf kernels, but not under arm64 kernels. By contrast, both kernels now provide revision information under /proc/device-tree/system/linux,revision.
A patched version of RPi.GPIO 0.65 is available from https://launchpad.net/~waveform/+archive/ubuntu/pkg/+packages which preferentially reads revision information from this source (falling back to /proc/cpuinfo to support older kernels). 0.65 was used as this also fixes a couple of nasty PWM bugs, including a memory leak. |
[Impact]
* RPi.GPIO currently does not work under arm64 kernels, simply due to hardware revision detection being slightly different.
* The patched version operates as expected under both armhf and arm64 kernels by querying /proc/device-tree/system/linux,revision (a file that exists on modern armhf and arm64 kernels), falling back to /proc/cpuinfo (the former detection method, primarily to continue supporting any older armhf kernels).
* This will also bump the version from 0.6.3 to 0.6.5 on bionic/cosmic. This fixes several nasty bugs around PWM handling and event detection. These issues didn't affect short-term experimentation with the library, but do affect long-running deployments (memory leak in PWM allocation, and a race-condition in setting up pin event detection).
[Test Case]
* On an arm64 kernel:
* Install present version of python3-rpi.gpio (0.6.3-1ubuntu4)
* Under python3 "from RPi import GPIO"
* Present version returns RuntimeError: This module can only be run on a Raspberry Pi
* Upgrade to proposed version (0.6.5-1ubuntu1)
* Under python3 "from RPi import GPIO"
* This should succeed
* Run test cases under test/ (note: external wiring/components required; check source header for requirements)
* Repeat procedure with armhf kernel to ensure no regression
[Regression Potential]
* On armhf kernels: low; the existing detection pathway is maintained for ancient kernels lacking /proc/device-tree/system/linux but modern armhf kernels appear to have this file anyway and work with the new detection code. The new version is also operating happily upstream in Raspbian stretch.
* On arm64 kernels: none; the existing version simply fails to import anyway |
|
| 2019-03-14 16:16:46 |
Dave Jones |
attachment added |
|
debdiff from rpi.gpio 0.6.3 https://bugs.launchpad.net/ubuntu/+source/rpi.gpio/+bug/1814118/+attachment/5246208/+files/rpi.gpio_0.6.5.patch |
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| 2019-03-14 16:17:08 |
Dave Jones |
bug |
|
|
added subscriber Ubuntu Sponsors Team |
| 2019-03-16 20:24:21 |
Simon Quigley |
bug |
|
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added subscriber Łukasz Zemczak |
| 2019-03-19 02:37:01 |
Mathew Hodson |
rpi.gpio (Ubuntu Bionic): importance |
Undecided |
Low |
|
| 2019-03-19 02:37:04 |
Mathew Hodson |
rpi.gpio (Ubuntu Cosmic): importance |
Undecided |
Low |
|
| 2019-04-26 01:22:29 |
Mathew Hodson |
rpi.gpio (Ubuntu): status |
Fix Committed |
Fix Released |
|
| 2019-06-25 16:57:50 |
Łukasz Zemczak |
rpi.gpio (Ubuntu Bionic): importance |
Low |
Medium |
|
| 2019-06-25 17:02:28 |
Łukasz Zemczak |
rpi.gpio (Ubuntu Cosmic): status |
New |
Won't Fix |
|
| 2019-06-25 17:02:36 |
Łukasz Zemczak |
rpi.gpio (Ubuntu Bionic): status |
New |
In Progress |
|
| 2019-06-25 17:04:14 |
Łukasz Zemczak |
removed subscriber Ubuntu Sponsors Team |
|
|
|
| 2019-07-22 15:15:35 |
Łukasz Zemczak |
rpi.gpio (Ubuntu Bionic): status |
In Progress |
Fix Committed |
|
| 2019-07-22 15:15:37 |
Łukasz Zemczak |
bug |
|
|
added subscriber Ubuntu Stable Release Updates Team |
| 2019-07-22 15:15:39 |
Łukasz Zemczak |
bug |
|
|
added subscriber SRU Verification |
| 2019-07-22 15:15:43 |
Łukasz Zemczak |
tags |
|
verification-needed verification-needed-bionic |
|
| 2019-10-21 19:29:26 |
Brian Murray |
tags |
verification-needed verification-needed-bionic |
removal-candidate verification-needed verification-needed-bionic |
|
| 2020-01-16 11:40:00 |
Łukasz Zemczak |
tags |
removal-candidate verification-needed verification-needed-bionic |
verification-done verification-done-bionic |
|
| 2020-01-16 11:40:22 |
Łukasz Zemczak |
removed subscriber Ubuntu Stable Release Updates Team |
|
|
|
| 2020-01-16 11:40:30 |
Launchpad Janitor |
rpi.gpio (Ubuntu Bionic): status |
Fix Committed |
Fix Released |
|
