Thread 1 (Thread 0x7f3bd6d977c0 (LWP 829)):
#0  0x00007f3bd2b3ee57 in sched_yield () at ../sysdeps/unix/syscall-template.S:78
#1  0x00007f3bd5a0a214 in ?? () from /usr/lib/x86_64-linux-gnu/libGL.so.1
#2  0x00007f3bd132c553 in ?? () from /usr/lib/x86_64-linux-gnu/libnvidia-glcore.so.340.107
#3  0x00007f3bd12f43ac in ?? () from /usr/lib/x86_64-linux-gnu/libnvidia-glcore.so.340.107
#4  0x00007f3bd13120be in ?? () from /usr/lib/x86_64-linux-gnu/libnvidia-glcore.so.340.107
#5  0x00007f3bd1312378 in ?? () from /usr/lib/x86_64-linux-gnu/libnvidia-glcore.so.340.107
#6  0x00007f3bd59fadff in ?? () from /usr/lib/x86_64-linux-gnu/libGL.so.1
#7  0x00007f3bd59d43f8 in glXSwapBuffers () from /usr/lib/x86_64-linux-gnu/libGL.so.1
#8  0x0000000000657050 in ?? ()
#9  0x000000000063fd95 in ?? ()
#10 0x00000000005d8cc4 in ?? ()
#11 0x00000000005d8eb1 in ?? ()
#12 0x00000000005c6650 in ?? ()
#13 0x00000000005c25bf in ?? ()
#14 0x000000000042098a in process() ()
#15 0x00000000004194bb in main ()
(gdb)