[Bug 91926] [SKL bisected] texsubimage pbo intermittent failures

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91926

--- Comment #69 from Topi Pohjolainen <topi.pohjolainen at intel.com> ---
(In reply to Topi Pohjolainen from comment #68)
> I had earlier verified that in a failing run the source texture had correct
> pixel values in it (by dumping on the disk). I hadn't been able to verify
> that the same applies for the source texture after update round (with 200
> test rounds I just couldn't get it to fail). I had left my laptop running it
> for 10000 rounds and I actually got a failing round with a dump (7101 test
> rounds where needed). Only problem is that as there are two internal
> iterations and it is always the second failing, I actually have total
> garbage for both on the disk. I can't readily explain this - it maybe that
> I'm missing a flush before the dump. I used
> "src/mesa/main/debug.c::write_ppm()".

And the actual pixels gotten using intel_get_tex_sub_image().

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