In case this matters, here's the output of "xtrace --timestamps xterm"
when the problem occurs:
1790865631.764 000:>:3018: Event Expose(12) window=0x0320001c x=868 y=0 width=1
height=158 count=0x0000
1790865631.764 000:<:3019: 16: Request(2): ChangeWindowAttributes
window=0x0320000c value-list={background-pixel=0x00000000}
1790865631.764 000:<:301a: 16: Request(2): ChangeWindowAttributes
window=0x0320001c value-list={background-pixel=0x00000000}
1790865631.764 000:<:301b: 16: Request(61): ClearArea exposures=false(0x00)
window=0x0320001c x=868 y=0 width=1 height=158
1790865631.764 000:<:301c: 28: RENDER-Request(139,26): FillRectangles
op=Src(0x01) dst=0x0320005c color={red=0x0000 green=0x0000 blue=0x0000
alpha=0xffff}; rects={x=858 y=2 w=11 h=22};
1790865631.764 000:<:301d: 20: RENDER-Request(139,6): SetPictureClipRectangles
picture=0x0320005c xOrigin=858 yOrigin=2 rectangles={x=0 y=0 w=11 h=22};
1790865631.764 000:<:301e: 40: RENDER-Request(139,23): CompositeGlyphs8
op=Over(0x03) src=0x03200022 dst=0x0320005c maskFormat=0x00000024
glyphset=0x03200012 xSrc=0 ySrc=0 glyphcmds={deltax=858 deltay=19 glyphs=0x48;
};
1790865631.764 000:<:301f: 16: RENDER-Request(139,5): ChangePicture
picture=0x0320005c values={clip-mask=None(0x00000000)}
1790865631.764 000:<:3020: 28: RENDER-Request(139,26): FillRectangles
op=Src(0x01) dst=0x0320005c color={red=0x0000 green=0x0000 blue=0x0000
alpha=0xffff}; rects={x=869 y=2 w=11 h=22};
1790865631.764 000:<:3021: 20: RENDER-Request(139,6): SetPictureClipRectangles
picture=0x0320005c xOrigin=869 yOrigin=2 rectangles={x=0 y=0 w=11 h=22};
1790865631.764 000:<:3022: 40: RENDER-Request(139,23): CompositeGlyphs8
op=Over(0x03) src=0x03200022 dst=0x0320005c maskFormat=0x00000024
glyphset=0x03200012 xSrc=0 ySrc=0 glyphcmds={deltax=869 deltay=19 glyphs=0x03;
};
1790865631.764 000:<:3023: 16: RENDER-Request(139,5): ChangePicture
picture=0x0320005c values={clip-mask=None(0x00000000)}
1790865631.764 000:<:3024: 28: RENDER-Request(139,26): FillRectangles
op=Src(0x01) dst=0x0320005c color={red=0x0000 green=0x0000 blue=0x0000
alpha=0xffff}; rects={x=858 y=24 w=11 h=22};
1790865631.764 000:<:3025: 20: RENDER-Request(139,6): SetPictureClipRectangles
picture=0x0320005c xOrigin=858 yOrigin=24 rectangles={x=0 y=0 w=11 h=22};
1790865631.764 000:<:3026: 40: RENDER-Request(139,23): CompositeGlyphs8
op=Over(0x03) src=0x03200022 dst=0x0320005c maskFormat=0x00000024
glyphset=0x03200012 xSrc=0 ySrc=0 glyphcmds={deltax=858 deltay=41 glyphs=0x4f;
};
1790865631.764 000:<:3027: 16: RENDER-Request(139,5): ChangePicture
picture=0x0320005c values={clip-mask=None(0x00000000)}
1790865631.764 000:<:3028: 28: RENDER-Request(139,26): FillRectangles
op=Src(0x01) dst=0x0320005c color={red=0x0000 green=0x0000 blue=0x0000
alpha=0xffff}; rects={x=869 y=24 w=11 h=22};
1790865631.764 000:<:3029: 20: RENDER-Request(139,6): SetPictureClipRectangles
picture=0x0320005c xOrigin=869 yOrigin=24 rectangles={x=0 y=0 w=11 h=22};
1790865631.764 000:<:302a: 40: RENDER-Request(139,23): CompositeGlyphs8
op=Over(0x03) src=0x03200022 dst=0x0320005c maskFormat=0x00000024
glyphset=0x03200012 xSrc=0 ySrc=0 glyphcmds={deltax=869 deltay=41 glyphs=0x03;
};
1790865631.764 000:<:302b: 16: RENDER-Request(139,5): ChangePicture
picture=0x0320005c values={clip-mask=None(0x00000000)}
1790865631.764 000:<:302c: 28: RENDER-Request(139,26): FillRectangles
op=Src(0x01) dst=0x0320005c color={red=0x0000 green=0x0000 blue=0x0000
alpha=0xffff}; rects={x=858 y=46 w=11 h=22};
1790865631.764 000:<:302d: 20: RENDER-Request(139,6): SetPictureClipRectangles
picture=0x0320005c xOrigin=858 yOrigin=46 rectangles={x=0 y=0 w=11 h=22};
1790865631.764 000:<:302e: 40: RENDER-Request(139,23): CompositeGlyphs8
op=Over(0x03) src=0x03200022 dst=0x0320005c maskFormat=0x00000024
glyphset=0x03200012 xSrc=0 ySrc=0 glyphcmds={deltax=858 deltay=63 glyphs=0x54;
};
1790865631.764 000:<:302f: 16: RENDER-Request(139,5): ChangePicture
picture=0x0320005c values={clip-mask=None(0x00000000)}
1790865631.764 000:<:3030: 28: RENDER-Request(139,26): FillRectangles
op=Src(0x01) dst=0x0320005c color={red=0x0000 green=0x0000 blue=0x0000
alpha=0xffff}; rects={x=869 y=46 w=11 h=22};
1790865631.764 000:<:3031: 20: RENDER-Request(139,6): SetPictureClipRectangles
picture=0x0320005c xOrigin=869 yOrigin=46 rectangles={x=0 y=0 w=11 h=22};
1790865631.764 000:<:3032: 40: RENDER-Request(139,23): CompositeGlyphs8
op=Over(0x03) src=0x03200022 dst=0x0320005c maskFormat=0x00000024
glyphset=0x03200012 xSrc=0 ySrc=0 glyphcmds={deltax=869 deltay=63 glyphs=0x03;
};
1790865631.764 000:<:3033: 16: RENDER-Request(139,5): ChangePicture
picture=0x0320005c values={clip-mask=None(0x00000000)}
1790865631.764 000:<:3034: 28: RENDER-Request(139,26): FillRectangles
op=Src(0x01) dst=0x0320005c color={red=0x0000 green=0x0000 blue=0x0000
alpha=0xffff}; rects={x=858 y=68 w=11 h=22};
1790865631.764 000:<:3035: 20: RENDER-Request(139,6): SetPictureClipRectangles
picture=0x0320005c xOrigin=858 yOrigin=68 rectangles={x=0 y=0 w=11 h=22};
1790865631.764 000:<:3036: 40: RENDER-Request(139,23): CompositeGlyphs8
op=Over(0x03) src=0x03200022 dst=0x0320005c maskFormat=0x00000024
glyphset=0x03200012 xSrc=0 ySrc=0 glyphcmds={deltax=858 deltay=85 glyphs=0x44;
};
1790865631.764 000:<:3037: 16: RENDER-Request(139,5): ChangePicture
picture=0x0320005c values={clip-mask=None(0x00000000)}
1790865631.764 000:<:3038: 28: RENDER-Request(139,26): FillRectangles
op=Src(0x01) dst=0x0320005c color={red=0x0000 green=0x0000 blue=0x0000
alpha=0xffff}; rects={x=869 y=68 w=11 h=22};
1790865631.764 000:<:3039: 20: RENDER-Request(139,6): SetPictureClipRectangles
picture=0x0320005c xOrigin=869 yOrigin=68 rectangles={x=0 y=0 w=11 h=22};
1790865631.764 000:<:303a: 40: RENDER-Request(139,23): CompositeGlyphs8
op=Over(0x03) src=0x03200022 dst=0x0320005c maskFormat=0x00000024
glyphset=0x03200012 xSrc=0 ySrc=0 glyphcmds={deltax=869 deltay=85 glyphs=0x03;
};
1790865631.764 000:<:303b: 16: RENDER-Request(139,5): ChangePicture
picture=0x0320005c values={clip-mask=None(0x00000000)}
1790865631.764 000:<:303c: 28: RENDER-Request(139,26): FillRectangles
op=Src(0x01) dst=0x0320005c color={red=0x0000 green=0x0000 blue=0x0000
alpha=0xffff}; rects={x=858 y=90 w=11 h=22};
1790865631.764 000:<:303d: 20: RENDER-Request(139,6): SetPictureClipRectangles
picture=0x0320005c xOrigin=858 yOrigin=90 rectangles={x=0 y=0 w=11 h=22};
1790865631.764 000:<:303e: 40: RENDER-Request(139,23): CompositeGlyphs8
op=Over(0x03) src=0x03200022 dst=0x0320005c maskFormat=0x00000024
glyphset=0x03200012 xSrc=0 ySrc=0 glyphcmds={deltax=858 deltay=107 glyphs=0x57;
};
1790865631.764 000:<:303f: 16: RENDER-Request(139,5): ChangePicture
picture=0x0320005c values={clip-mask=None(0x00000000)}
1790865631.764 000:<:3040: 28: RENDER-Request(139,26): FillRectangles
op=Src(0x01) dst=0x0320005c color={red=0x0000 green=0x0000 blue=0x0000
alpha=0xffff}; rects={x=869 y=90 w=11 h=22};
1790865631.764 000:<:3041: 20: RENDER-Request(139,6): SetPictureClipRectangles
picture=0x0320005c xOrigin=869 yOrigin=90 rectangles={x=0 y=0 w=11 h=22};
1790865631.764 000:<:3042: 40: RENDER-Request(139,23): CompositeGlyphs8
op=Over(0x03) src=0x03200022 dst=0x0320005c maskFormat=0x00000024
glyphset=0x03200012 xSrc=0 ySrc=0 glyphcmds={deltax=869 deltay=107 glyphs=0x03;
};
1790865631.764 000:<:3043: 16: RENDER-Request(139,5): ChangePicture
picture=0x0320005c values={clip-mask=None(0x00000000)}
1790865631.764 000:<:3044: 28: RENDER-Request(139,26): FillRectangles
op=Src(0x01) dst=0x0320005c color={red=0x0000 green=0x0000 blue=0x0000
alpha=0xffff}; rects={x=858 y=112 w=11 h=22};
1790865631.764 000:<:3045: 20: RENDER-Request(139,6): SetPictureClipRectangles
picture=0x0320005c xOrigin=858 yOrigin=112 rectangles={x=0 y=0 w=11 h=22};
1790865631.764 000:<:3046: 40: RENDER-Request(139,23): CompositeGlyphs8
op=Over(0x03) src=0x03200022 dst=0x0320005c maskFormat=0x00000024
glyphset=0x03200012 xSrc=0 ySrc=0 glyphcmds={deltax=858 deltay=129 glyphs=0x54;
};
1790865631.764 000:<:3047: 16: RENDER-Request(139,5): ChangePicture
picture=0x0320005c values={clip-mask=None(0x00000000)}
1790865631.764 000:<:3048: 28: RENDER-Request(139,26): FillRectangles
op=Src(0x01) dst=0x0320005c color={red=0x0000 green=0x0000 blue=0x0000
alpha=0xffff}; rects={x=869 y=112 w=11 h=22};
1790865631.764 000:<:3049: 20: RENDER-Request(139,6): SetPictureClipRectangles
picture=0x0320005c xOrigin=869 yOrigin=112 rectangles={x=0 y=0 w=11 h=22};
1790865631.764 000:<:304a: 40: RENDER-Request(139,23): CompositeGlyphs8
op=Over(0x03) src=0x03200022 dst=0x0320005c maskFormat=0x00000024
glyphset=0x03200012 xSrc=0 ySrc=0 glyphcmds={deltax=869 deltay=129 glyphs=0x03;
};
1790865631.764 000:<:304b: 16: RENDER-Request(139,5): ChangePicture
picture=0x0320005c values={clip-mask=None(0x00000000)}
1790865631.764 000:<:304c: 28: RENDER-Request(139,26): FillRectangles
op=Src(0x01) dst=0x0320005c color={red=0x0000 green=0x0000 blue=0x0000
alpha=0xffff}; rects={x=858 y=134 w=11 h=22};
1790865631.764 000:<:304d: 20: RENDER-Request(139,6): SetPictureClipRectangles
picture=0x0320005c xOrigin=858 yOrigin=134 rectangles={x=0 y=0 w=11 h=22};
1790865631.764 000:<:304e: 40: RENDER-Request(139,23): CompositeGlyphs8
op=Over(0x03) src=0x03200022 dst=0x0320005c maskFormat=0x00000024
glyphset=0x03200012 xSrc=0 ySrc=0 glyphcmds={deltax=858 deltay=151 glyphs=0x03;
};
1790865631.764 000:<:304f: 16: RENDER-Request(139,5): ChangePicture
picture=0x0320005c values={clip-mask=None(0x00000000)}
1790865631.764 000:<:3050: 28: RENDER-Request(139,26): FillRectangles
op=Src(0x01) dst=0x0320005c color={red=0x0000 green=0x0000 blue=0x0000
alpha=0xffff}; rects={x=869 y=134 w=11 h=22};
1790865631.764 000:<:3051: 20: RENDER-Request(139,6): SetPictureClipRectangles
picture=0x0320005c xOrigin=869 yOrigin=134 rectangles={x=0 y=0 w=11 h=22};
1790865631.764 000:<:3052: 40: RENDER-Request(139,23): CompositeGlyphs8
op=Over(0x03) src=0x03200022 dst=0x0320005c maskFormat=0x00000024
glyphset=0x03200012 xSrc=0 ySrc=0 glyphcmds={deltax=869 deltay=151 glyphs=0x03;
};
1790865631.764 000:<:3053: 16: RENDER-Request(139,5): ChangePicture
picture=0x0320005c values={clip-mask=None(0x00000000)}
(I reduced the xterm height to a few lines in order to avoid
too may messages.)
I suppose that glyphs=0x03 corresponds to the space (no glyphs).
So xterm requests to clear the column at x=869.
--
Vincent Lefèvre <[email protected]> - Web: <https://www.vinc17.net/>
100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/>
Work: CR INRIA - computer arithmetic / Pascaline project (LIP, ENS-Lyon)
