supertux2 segfaults on native Mir with SDL_VIDEODRIVER=mir trying to call glXQueryVersion

[Daniel van Vugt]

supertux2 crashes on native Mir, trying to call GLX functions...

Thread 1 "supertux2" received signal SIGSEGV, Segmentation fault.
0x00007ffff519a95d in XQueryExtension ()
   from /usr/lib/x86_64-linux-gnu/libX11.so.6
(gdb) bt
#0 0x00007ffff519a95d in XQueryExtension ()
   from /usr/lib/x86_64-linux-gnu/libX11.so.6
#1 0x00007ffff518e4c2 in XInitExtension ()
   from /usr/lib/x86_64-linux-gnu/libX11.so.6
#2 0x00007ffff6f8269c in ?? () from /usr/lib/x86_64-linux-gnu/mesa/libGL.so.1
#3 0x00007ffff6f7e041 in glXQueryVersion ()
   from /usr/lib/x86_64-linux-gnu/mesa/libGL.so.1
#4 0x00007ffff6d2eb34 in glxewInit ()
   from /usr/lib/x86_64-linux-gnu/libGLEW.so.1.13
#5 0x0000000000560eeb in GLRenderer::GLRenderer() ()
#6 0x000000000055e153 in GLVideoSystem::GLVideoSystem() ()
#7 0x00000000004f4b85 in VideoSystem::create(VideoSystem::Enum) ()
#8 0x00000000004ad662 in Main::launch_game() ()
#9 0x00000000004af0ad in Main::run(int, char**) ()
#10 0x00000000004a9f13 in main ()

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[dinamic (dinamic6661)]

i'm a little confused now because it doesn't crash for me

i launch supertux with 'ubuntu-app-launch supertux2' and runs ok and i don't see any Xmir loaded

[Daniel van Vugt (vanvugt)]

That's OK, then you can ignore this bug.

[Nigel Stewart (nigels)]

Sounds likely to be this issue:
https://github.com/nigels-com/glew/issues/103

I can go ahead and release a GLEW 2.0.1 (bugfix release) if it's likely to be promptly downstreamed.

[Daniel van Vugt (vanvugt)]

Thanks. Ubuntu appears to just copy and use Debian glew releases. So yes, if you can get Debian to release 2.0.1 that would help us.

There's no huge demand for a fix but it's periodically confusing if we try supertux as a Mir test once or twice a year and each time (I) forget that it's this bug preventing it from working. Or preventing any glew app from working on Mir, I guess.