Comment # 4 on bug 58378 from Henrique Dias

more dmesg messages:

[ 1123.476832] nouveau E[  PGRAPH][0000:01:00.0] TRAP_MP_EXEC - TP 0 MP 0:
INVALID_OPCODE at 07ff00 warp 0, opcode ffffffff ffffffff
[ 1123.476839] nouveau  [  PGRAPH][0000:01:00.0]  TRAP
[ 1123.476844] nouveau E[  PGRAPH][0000:01:00.0] ch 6 [0x000765e000] subc 3
class 0x8297 mthd 0x1694 data 0x00010031