Yeah, it looks like this:

#0 fpc_popaddrstack at :0
#1 ?? at :0
#2 TSPRITE__CREATE(0x1848720, 0x1846a58, 0x42a428, <error reading variable>) at sprites.pas:39
#3 TTILESET__GETTILESPRITE(4, <error reading variable>) at tilesets.pas:65
#4 TCHUNK__GETTERRAINSPRITE(0x158d170, <error reading variable>) at chunkutils.pas:264
#5 TCHUNK__DRAW(0x1846d20, 0, 64, 0x158d170, 4, true, <error reading variable>) at chunkutils.pas:177
#6 DRAW at alletest.lpr:37
#7 main at alletest.lpr:158

But dunno how to interpret this.