Bug#956454: gmsh: Seg fault doing almost anything related to radeonsi_dri.so

[Marc]

Package: gmsh
Version: 4.5.6+ds1-1
Severity: important

Dear Maintainer,

Gmsh is very unstable on two systems both with amdgpu graphics.  I start by
adding some points, then trying to make a line causes a segmentation fault.
Actually seemingly right-clicking causes the same problem. A lot of menu items
do this.

The error I get when running gmsh from a terminal emulator is Segmentation
Fault.

When I run with gdb I get the following:
Thread 1 "gmsh" received signal SIGSEGV, Segmentation fault.
0x00007fffe3459874 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so

I have been trying to figure out why the radeon driver is implicated on both
systems that should be running amdgpu. I tried startup options to force use of
amdgpu but no avail.




Let me know how I can get more info to you. I'm not a developer.




-- System Information:
Debian Release: bullseye/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 5.5.0-1-amd64 (SMP w/4 CPU cores)
Kernel taint flags: TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8), LANGUAGE=en_GB:en (charmap=UTF-8)
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages gmsh depends on:
ii  libc6     2.30-4
ii  libgmsh4  4.5.6+ds1-1

Versions of packages gmsh recommends:
ii  gmsh-doc  4.5.6+ds1-1

gmsh suggests no packages.

-- no debconf information