Dan HiornsandClaude Opus 5.5 c18ee8c88b Tests: one GPU harness at a time in every GPU test binary (WARP crash) (#3212) ...

On Windows, GPU UI test binaries crashed with STATUS_ACCESS_VIOLATION
whenever two of their tests ran at once: arbitrary_rotation_preview 3
runs in 4 on main, and color_managed_canvas, crop_default_mode,
drag_preview_canvas and full_res_preview at random. egui_kittest
prefers a CPU adapter, which on Windows is WARP over DX12, and a dump
puts the fault inside d3d10warp.dll with two WARP devices rendering on
parallel test threads. Bare egui harnesses with no PhotoCraft code
crash the same way, and Vulkan or GL never does. CI's Windows runners
have no GPU, so they run on WARP too.

Three binaries already held a per-binary lock for the same class of
driver bug (Mesa llvmpipe and RADV, #194; libvulkan with NVIDIA and
lavapipe). That lock now lives once in photocraft-testkit
(`gpu_lock`, with the reasons) and every test in the twelve GPU test
binaries without it takes it on its first line. Under nextest each
test is its own process and the lock is free.

Co-authored-by: Claude Opus 5.5 <[email protected]>

2026-10-11 19:27:26 -04:00

..

src

Tests: one GPU harness at a time in every GPU test binary (WARP crash) (#3212)

2026-10-11 19:27:26 -04:00

Cargo.toml

Scorecard: cargo xtask perf + scorecard, budgets, checklists, nightly perf (#221) (#239) (#239)

2026-10-05 10:53:02 -04:00