[Bug 5148] New: [r300] Stale texture data used on first rendering

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https://bugs.freedesktop.org/show_bug.cgi?id=5148          
     
           Summary: [r300] Stale texture data used on first rendering
           Product: Mesa
           Version: CVS
          Platform: Other
        OS/Version: FreeBSD
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Drivers/DRI/r300
        AssignedTo: dri...@li...
        ReportedBy: anholt@FreeBSD.org


A small sample app for this issue is from libpcg, tests/reactdiff_2d in TURING
mode (it's most visible there).  It's drawing a single texture that's evolving
over time.  After the texture has been updated, the first drawing of it will
draw four sub-triangles of (presumably) the first triangle drawn, using data
from the previous texture that was used.  Resizing the window to make it redraw
makes the misrendering go away.  It's somewhat visible while using the app, and
very prominent when quitting the app while the texture is light-colored, then
restarting.  The stale data will actually persist across X Server restarts.

Hacking up a fix for #5147 doesn't fix this.          
     
     
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