[INFO]: Reseting world on phase change...

Program received signal SIGSEGV, Segmentation fault.
0x00007fffe860eed9 in drm_intel_bo_unreference ()
   from /usr/lib/x86_64-linux-gnu/libdrm_intel.so.1
(gdb) bt
#0  0x00007fffe860eed9 in drm_intel_bo_unreference ()
   from /usr/lib/x86_64-linux-gnu/libdrm_intel.so.1
#1  0x00007fffe8bf37a5 in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#2  0x00007fffe8888f7d in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#3  0x00007fffe89abe4f in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#4  0x00007fffe889ae7d in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#5  0x00007fffe889b017 in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#6  0x00007fffe88aba82 in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#7  0x00000000008813c5 in Gfx::CGLDevice::DestroyStaticBuffer (this=0x32ab450,
    bufferId=216367)
    at /home/krzys_h/Pulpit/colobot/src/graphics/opengl/gldevice.cpp:1624
#8  0x00000000006c849a in Gfx::CEngine::DeleteBaseObject (this=0x44ad440,
    baseObjRank=350)
    at /home/krzys_h/Pulpit/colobot/src/graphics/engine/engine.cpp:657
#9  0x0000000000727b69 in Gfx::CTerrain::FlushRelief (this=0x4a174b0)
    at /home/krzys_h/Pulpit/colobot/src/graphics/engine/terrain.cpp:276
#10 0x000000000078624e in CRobotMain::ChangePhase (this=0x4a0c750,
    phase=PHASE_LEVEL_LIST)
    at /home/krzys_h/Pulpit/colobot/src/object/robotmain.cpp:467
#11 0x00000000008130f4 in Ui::CMainDialog::EventProcess (this=0x4a16a70,
    event=...) at /home/krzys_h/Pulpit/colobot/src/ui/maindialog.cpp:315
#12 0x0000000000698952 in CController::ProcessEvent (this=0x4a14d40, event=...)
    at /home/krzys_h/Pulpit/colobot/src/app/controller.cpp:74
---Type <return> to continue, or q <return> to quit---
#13 0x000000000068e319 in CApplication::Run (this=0xcae7a0)
    at /home/krzys_h/Pulpit/colobot/src/app/app.cpp:986
#14 0x0000000000689953 in main (argc=1, argv=0x7fffffffe3d8)
    at /home/krzys_h/Pulpit/colobot/src/app/main.cpp:151
(gdb) q
A debugging session is active.

	Inferior 1 [process 4208] will be killed.

Quit anyway? (y or n) y