Bug Description

$ lsb_release -rd

Description: Ubuntu Artful Aardvark (development branch)

Release: 17.10

$ apt-cache policy mesa-vulkan-drivers

mesa-vulkan- drivers:

Installed: 17.2.1-0ubuntu1

Candidate: 17.2.1-0ubuntu1

Version table:

*** 17.2.1-0ubuntu1 500

500 http:// us.archive. ubuntu. com/ubuntu artful/universe amd64 Packages

100 /var/lib/ dpkg/status

Easily reproducible : apt-get install mesa-vulkan-drivers apt-get install vulkan-utils

Open a terminal type vulkan-smoketest instead of a glxgears type window it will segfault.

message from kernel.log:

Sep 29 16:23:53 Tardis-1 kernel: [17709.532915] vulkan- smoketes[ 11798]: segfault at 0 ip 00007fed61a17914 sp 00007ffedcb8f850 error 6 in libvulkan_ radeon. so[7fed619ab000 +18b000]

syslog:

Sep 28 10:38:13 Tardis-1 kernel: [18292.174313] vulkan- smoketes[ 13385]: segfault at 0 ip 00007f62705a7914 sp 00007ffd0edc6260 error 6 in libvulkan_ radeon. so[7f627053b000 +18b000]

What should happen is a glxgears like window will open and render properly instead of segfaulting.

It appears that the culprit is an old or broken libvulkan_radeon.so provided by mesa-vulkan- drivers.

As a test I renamed the old lib and dropped in a newer version from oibaf's ppa. smoketest now passes steam's The Talos Princible and Mad Max now work properly in Vulkan mode as well instead of segfaulting.

This issue is also present on Zesty and fixed in both Oibaf's and Padoka's ppa's since April back when they were rolling 17.2 mesa.

I have no idea if libvulkan_intel.so also needs updating no hardware to check.