Some diagnosis as follows:
- Loaded a previous snapshot of a Kubuntu 21.04 VM from before 16th March 2021.
- Installed ubiquity.
- Tested whether ubiquity launches.
- Ubiquity launches.
- Then looked at what was upgradable in the release pocket.
- Sequentially upgraded likely culprits, rebooted, and tried to launch ubiquity
after each small update.
Result:
Found that upgrading Mesa packages from 20.3.4-1 to 21.0.0-1 is all that
is required to trigger the crash.
Upgraded the following packages:
libegl-mesa0 (20.3.4-1) to 21.0.0-1
libgbm1 (20.3.4-1) to 21.0.0-1
libgl1-mesa-dri (20.3.4-1) to 21.0.0-1
libglapi-mesa (20.3.4-1) to 21.0.0-1
libglx-mesa0 (20.3.4-1) to 21.0.0-1
libxatracker2 (20.3.4-1) to 21.0.0-1
mesa-va-drivers (20.3.4-1) to 21.0.0-1
mesa-vdpau-drivers (20.3.4-1) to 21.0.0-1
mesa-vulkan-drivers (20.3.4-1) to 21.0.0-1
** Also affects: ubiquity (Ubuntu Hirsute)
Importance: Critical
Status: New
** Also affects: mesa (Ubuntu)
Importance: Undecided
Status: New
--
You received this bug notification because you are a member of Ubuntu-X,
which is subscribed to mesa in Ubuntu.
https://bugs.launchpad.net/bugs/1920665
Title:
Ubiquity crash on try/install and from live session with "malloc():
unaligned tcache chunk detected"
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/1920665/+subscriptions
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