Comment 2 for bug 1920665

Revision history for this message
Rik Mills (rikmills) wrote : Re: Ubiquity crash on try/install and from live session with "malloc(): unaligned tcache chunk detected"

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