unity-system-compositor crashed with SIGSEGV in libinput_device_config_accel_is_available() from libinput_device_config_accel_set_speed() from mir::input::evdev::LibInputDevice::apply_settings()

[errors.ubuntu.com bug bridge]

The Ubuntu Error Tracker has been receiving reports about a problem regarding unity-system-compositor. This problem was most recently seen with package version 0.9.1+17.04.20170216-0ubuntu1, the problem page at https://errors.ubuntu.com/problem/fcf5550475fb0478d6eb2a307f03705ef1ed398a contains more details, including versions of packages affected, stacktrace or traceback, and individual crash reports.
If you do not have access to the Ubuntu Error Tracker you can request it at http://forms.canonical.com/reports/.

It seems that the configuration change is requested just a moment before the device gets removed. The change actions are serialized, depending on where there memory of mir::input::DefaultDevice is allocated the segfault either occurs inside the lambda or inside underlying mir::input::LibInputDevice in the platform. The activities on input dispatch device removal and reconfiguration are serialized inside the input thread, so we just need to clean the action queue (or have multiple queues) before removing the devices.

[mir-ci-bot (mir-ci-bot)]

Fix committed into lp:mir at revision None, scheduled for release in mir, milestone 1.0.0

[Stephen M. Webb (bregma)]

This should not have been set to Fix Committed on system images until it's available on system images.

[Timo Aaltonen (tjaalton)]

Hello errors.ubuntu.com, or anyone else affected,

Accepted mir into xenial-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/mir/0.26.3+16.04.20170510-0ubuntu1 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed.Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, and change the tag from verification-needed to verification-done. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed. In either case, details of your testing will help us make a better decision.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance!

[Alan Griffiths (alan-griffiths)]

Tested version 0.26.3+16.04.20170510-0ubuntu1

[Launchpad Janitor (janitor)]

This bug was fixed in the package mir - 0.26.3+17.10.20170526.3-0ubuntu1

---------------
mir (0.26.3+17.10.20170526.3-0ubuntu1) artful; urgency=medium

  [ Daniel van Vugt ]
  * New upstream release 0.26.3 (https://launchpad.net/mir/+milestone/0.26.3)
    - Enhancements:
      . Make deprecations optional (and default to off for builds on 16.04 LTS)
      . Added support for building on Ubuntu 17.10 artful.
    - Bugs fixed:
      . Mir needs to be updated to 0.26 in 16.04LTS (LP: #1685186)
      . unity-system-compositor crashed with SIGSEGV in
        libinput_device_config_accel_is_available() from
        libinput_device_config_accel_set_speed() from
        mir::input::evdev::LibInputDevice::apply_settings() (LP: #1672955)
      . Please transition to Boost 1.62 (LP: #1675138)
      . Mir sending key repeat events continually to nested shell after VT
        switch (causes Unity8 lockup for a while) (LP: #1675357)
      . mir_demo_standalone_render_overlays fails to link (LP: #1677239)

 -- Alan Griffiths <email address hidden> Fri, 26 May 2017 16:57:20 +0000

[Chris Halse Rogers (raof)]

Hello errors.ubuntu.com, or anyone else affected,

Accepted mir into xenial-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/mir/0.26.3+16.04.20170605-0ubuntu1 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed.Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, and change the tag from verification-needed to verification-done. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed. In either case, details of your testing will help us make a better decision.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance!

[Chris Halse Rogers (raof)]

Hello errors.ubuntu.com, or anyone else affected,

Accepted mir into yakkety-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/mir/0.26.3+16.10.20170605-0ubuntu1 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed.Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, and change the tag from verification-needed to verification-done. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed. In either case, details of your testing will help us make a better decision.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance!

[Chris Halse Rogers (raof)]

Hello errors.ubuntu.com, or anyone else affected,

Accepted mir into zesty-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/mir/0.26.3+17.04.20170605-0ubuntu1 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed.Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, and change the tag from verification-needed to verification-done. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed. In either case, details of your testing will help us make a better decision.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance!

[Michał Sawicz (saviq)]

Tested:
xenial: 0.26.3+16.04.20170605-0ubuntu1
yakkety: 0.26.3+16.10.20170605-0ubuntu1
zesty: 0.26.3+17.04.20170605-0ubuntu1

[Andy Whitcroft (apw)]

The verification of the Stable Release Update for mir has completed successfully and the package has now been released to -updates. Subsequently, the Ubuntu Stable Release Updates Team is being unsubscribed and will not receive messages about this bug report. In the event that you encounter a regression using the package from -updates please report a new bug using ubuntu-bug and tag the bug report regression-update so we can easily find any regressions.

[Launchpad Janitor (janitor)]

This bug was fixed in the package mir - 0.26.3+16.10.20170605-0ubuntu1

---------------
mir (0.26.3+16.10.20170605-0ubuntu1) yakkety; urgency=medium

  [ Daniel van Vugt ]
  * New upstream release 0.26.3 (https://launchpad.net/mir/+milestone/0.26.3)
    - Enhancements:
      . Make deprecations optional (and default to off for builds on 16.04 LTS)
      . Added support for building on Ubuntu 17.10 artful.
    - Bugs fixed:
      . Mir needs to be updated to 0.26 in 16.04LTS (LP: #1685186)
      . unity-system-compositor crashed with SIGSEGV in
        libinput_device_config_accel_is_available() from
        libinput_device_config_accel_set_speed() from
        mir::input::evdev::LibInputDevice::apply_settings() (LP: #1672955)
      . Please transition to Boost 1.62 (LP: #1675138)
      . Mir sending key repeat events continually to nested shell after VT
        switch (causes Unity8 lockup for a while) (LP: #1675357)
      . mir_demo_standalone_render_overlays fails to link (LP: #1677239)

 -- Michał Sawicz <email address hidden> Mon, 05 Jun 2017 13:46:05 +0000

[Launchpad Janitor (janitor)]

This bug was fixed in the package mir - 0.26.3+16.04.20170605-0ubuntu1

---------------
mir (0.26.3+16.04.20170605-0ubuntu1) xenial; urgency=medium

  [ Daniel van Vugt ]
  * New upstream release 0.26.3 (https://launchpad.net/mir/+milestone/0.26.3)
    - Enhancements:
      . Make deprecations optional (and default to off for builds on 16.04 LTS)
      . Added support for building on Ubuntu 17.10 artful.
    - Bugs fixed:
      . Mir needs to be updated to 0.26 in 16.04LTS (LP: #1685186)
      . unity-system-compositor crashed with SIGSEGV in
        libinput_device_config_accel_is_available() from
        libinput_device_config_accel_set_speed() from
        mir::input::evdev::LibInputDevice::apply_settings() (LP: #1672955)
      . Please transition to Boost 1.62 (LP: #1675138)
      . Mir sending key repeat events continually to nested shell after VT
        switch (causes Unity8 lockup for a while) (LP: #1675357)
      . mir_demo_standalone_render_overlays fails to link (LP: #1677239)

 -- Michał Sawicz <email address hidden> Mon, 05 Jun 2017 11:01:05 +0000

[Launchpad Janitor (janitor)]

This bug was fixed in the package mir - 0.26.3+17.04.20170605-0ubuntu1

---------------
mir (0.26.3+17.04.20170605-0ubuntu1) zesty; urgency=medium

  [ Daniel van Vugt ]
  * New upstream release 0.26.3 (https://launchpad.net/mir/+milestone/0.26.3)
    - Enhancements:
      . Make deprecations optional (and default to off for builds on 16.04 LTS)
      . Added support for building on Ubuntu 17.10 artful.
    - Bugs fixed:
      . Mir needs to be updated to 0.26 in 16.04LTS (LP: #1685186)
      . unity-system-compositor crashed with SIGSEGV in
        libinput_device_config_accel_is_available() from
        libinput_device_config_accel_set_speed() from
        mir::input::evdev::LibInputDevice::apply_settings() (LP: #1672955)
      . Please transition to Boost 1.62 (LP: #1675138)
      . Mir sending key repeat events continually to nested shell after VT
        switch (causes Unity8 lockup for a while) (LP: #1675357)
      . mir_demo_standalone_render_overlays fails to link (LP: #1677239)

 -- Michał Sawicz <email address hidden> Mon, 05 Jun 2017 11:04:47 +0000

[Daniel van Vugt (vanvugt)]

Minor correction - Mir 0.27.0 is not released yet :)