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@ILoveU3D ILoveU3D commented Dec 15, 2025

In terms of a DRM format VK_FORMAT_B10G11R11_UFLOAT_PACK32. Once the CTS reads a IVec4 (128 bits) for one pixel, it will go out of boudary for the last pixel, because this format has only 32-bits packed.

For more, on most OS (e.g. Win, Ubuntu), we can usually get a sort of clean memory from kernel. Then this problem would not happened. I tested this occuring in another minor platform (Linux on Arm64) where we are hitting dirty value at the last pixel.

Hope it will help the graphic software and hardware developers ~

ArthurVasseur and others added 3 commits November 16, 2025 12:21
The LIMIT_FORMAT_BITMASK validation uses deUint32 for checking the
limit value but incorrectly casts to deUint64 when logging the actual
value. This causes incorrect values to be displayed in the logs.

This bug was originally introduced in c82c0fa (2016) and persisted
through the de* type removal in 1a09796 (2023).
…nt64-cast

fix: incorrect uint64_t cast in bitmask limit validation
…nce it reads a IVec4 (128 bits) for one pixel.
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4 participants