I added the text after the -> using gdb and trying to figure out what the numbers mean.

[ 83472.019] [mi] EQ overflowing. The server is probably stuck in an infinite loop.
[ 83472.019] 
Backtrace:
[ 83472.071] 0: /usr/bin/X (xorg_backtrace+0x28) [0x45f968]
[ 83472.071] 1: /usr/bin/X (mieqEnqueue+0x1c3) [0x45a5e3]
[ 83472.071] 2: /usr/bin/X (xf86PostMotionEventM+0x96) [0x47ee96]
[ 83472.071] 3: /usr/bin/X (xf86PostMotionEventP+0x31) [0x47ef91]
[ 83472.071] 4: /usr/lib64/xorg/modules/input/evdev_drv.so (0x7f02e93a3000+0x5334) [0x7f02e93a8334]
[ 83472.072] 5: /usr/bin/X (0x400000+0x6d8d8) [0x46d8d8]   -> xf86SigioReadInput + 24 in section .text
[ 83472.072] 6: /usr/bin/X (0x400000+0x11b7c6) [0x51b7c6]   -> xf86SIGIO + 262 in section .text
[ 83472.072] 7: /lib64/libpthread.so.0 (0x7f02ee818000+0xf870) [0x7f02ee827870] -> __restore_rt in section .text
[ 83472.072] 8: /lib64/libc.so.6 (ioctl+0x7) [0x7f02ed831aa7]
[ 83472.072] 9: /usr/lib64/libdrm.so.2 (drmIoctl+0x30) [0x7f02ebddecf0]
[ 83472.072] 10: /usr/lib64/libdrm.so.2 (drmCommandWrite+0x1b) [0x7f02ebddf03b]
[ 83472.072] 11: /usr/lib64/libdrm_nouveau.so.1 (0x7f02eb791000+0x337d) [0x7f02eb79437d]  -> nouveau_bo_kalloc + 182 in section .text 
[ 83472.072] 12: /usr/lib64/libdrm_nouveau.so.1 (nouveau_bo_map_range+0xd2) [0x7f02eb794552]
[ 83472.072] 13: /usr/lib64/libdrm_nouveau.so.1 (0x7f02eb791000+0x2589) [0x7f02eb793589]  -> nouveau_pushbuf_flush + 18 in section .text
[ 83472.072] 14: /usr/lib64/libdrm_nouveau.so.1 (nouveau_pushbuf_flush+0x1a7) [0x7f02eb793927]
[ 83472.073] 15: /usr/lib64/xorg/modules/libexa.so (0x7f02eb354000+0xbd38) [0x7f02eb35fd38]   -> exaHWCopyNtoN + 2840 in section .text
[ 83472.073] 16: /usr/lib64/xorg/modules/libexa.so (0x7f02eb354000+0xbff5) [0x7f02eb35fff5]   -> exaCopyNtoN + 245 in section .text
[ 83472.073] 17: /usr/bin/X (miCopyRegion+0x9c) [0x549e3c]
[ 83472.073] 18: /usr/bin/X (miDoCopy+0x3bb) [0x54a47b]
[ 83472.073] 19: /usr/lib64/xorg/modules/libexa.so (0x7f02eb354000+0xa52f) [0x7f02eb35e52f]  -> exaCopyArea + 175 in section .text
[ 83472.073] 20: /usr/bin/X (0x400000+0xdc637) [0x4dc637]  -> damageCopyArea + 439 in section .text
[ 83472.073] 21: /usr/bin/X (0x400000+0x2d941) [0x42d941]  -> ProcCopyArea + 321 in section .text
[ 83472.073] 22: /usr/bin/X (0x400000+0x30a51) [0x430a51]  -> Dispatch + 913 in section .text
[ 83472.073] 23: /usr/bin/X (0x400000+0x24aaa) [0x424aaa]  -> main + 938 in section .text
[ 83472.073] 24: /lib64/libc.so.6 (__libc_start_main+0xec) [0x7f02ed785d4c]
[ 83472.073] 25: /usr/bin/X (0x400000+0x24609) [0x424609]  -> _start + 41 in section .text

[495828.354] [mi] EQ overflowing. The server is probably stuck in an infinite loop.
[495828.373] 
Backtrace:
[495828.462] 0: /usr/bin/X (xorg_backtrace+0x28) [0x45f968]
[495828.462] 1: /usr/bin/X (mieqEnqueue+0x1c3) [0x45a5e3]
[495828.462] 2: /usr/bin/X (xf86PostMotionEventM+0x96) [0x47ee96]
[495828.462] 3: /usr/bin/X (xf86PostMotionEventP+0x31) [0x47ef91]
[495828.469] 4: /usr/lib64/xorg/modules/input/evdev_drv.so (0x7f8aa82b6000+0x5334) [0x7f8aa82bb334]
[495828.469] 5: /usr/bin/X (0x400000+0x6d8d8) [0x46d8d8]   -> xf86SigioReadInput + 24 in section .text
[495828.470] 6: /usr/bin/X (0x400000+0x11b7c6) [0x51b7c6]   -> xf86SIGIO + 262 in section .text
[495828.470] 7: /lib64/libpthread.so.0 (0x7f8aad723000+0xf870) [0x7f8aad732870] -> __restore_rt in section .text
[495828.470] 8: /lib64/libc.so.6 (ioctl+0x7) [0x7f8aac73ca87]
[495828.470] 9: /usr/lib64/libdrm.so.2 (drmIoctl+0x30) [0x7f8aaace9cf0]
[495828.470] 10: /usr/lib64/libdrm.so.2 (drmCommandWrite+0x1b) [0x7f8aaacea03b]
[495828.470] 11: /usr/lib64/libdrm_nouveau.so.1 (0x7f8aaa69c000+0x337d) [0x7f8aaa69f37d]  -> nouveau_bo_kalloc + 182 in section .text 
[495828.470] 12: /usr/lib64/libdrm_nouveau.so.1 (nouveau_bo_map_range+0xd2) [0x7f8aaa69f552] 
[495828.485] 13: /usr/lib64/xorg/modules/drivers/nouveau_drv.so (0x7f8aaa8a2000+0x76ee) [0x7f8aaa8a96ee]   -> ? xf86SetDpi@plt + 6 in section .plt
[495828.485] 14: /usr/lib64/xorg/modules/libexa.so (0x7f8aaa25f000+0x95bf) [0x7f8aaa2685bf] -> exaPutImage + 927 in section .text
[495828.485] 15: /usr/bin/X (0x400000+0xdc88b) [0x4dc88b]  -> damagePutImage + 427 in section .text
[495828.485] 16: /usr/bin/X (0x400000+0x2caab) [0x42caab]  -> ProcPutImage + 299 in section .text
[495828.485] 17: /usr/bin/X (0x400000+0x30a51) [0x430a51]  -> Dispatch + 913 in section .text
[495828.485] 18: /usr/bin/X (0x400000+0x24aaa) [0x424aaa]  -> main + 938 in section .text
[495828.485] 19: /lib64/libc.so.6 (__libc_start_main+0xec) [0x7f8aac690d4c]
[495828.485] 20: /usr/bin/X (0x400000+0x24609) [0x424609]  -> _start + 41 in section .text