Pin the descriptor before mmap validation so guest descriptor reuse cannot
redirect the eventual mapping. Apply the canonical guest creation mask when
creating named objects, distinguishing new objects before setting permissions
without changing the host process umask. Add regressions that reproduce both
failures and document the remaining host requirements.
Constraint: Guest umask must not mutate the process-wide host mask
Confidence: high
Scope-risk: narrow
Tested: 17 targeted Linux runtime tests passed with zero skips; conventions and diff checks; Clang analyzer on three changed production translation units
Not-tested: Full project build and suite, Windows runtime, console hardware and titles
Complete the object lifecycle through guest mapping and unlink APIs, and
preserve FreeBSD shared-object size and seek rules across scalar, vector
and asynchronous descriptor writes. Pin descriptors during operations and
coordinate size-sensitive operations across cooperating emulator processes.
Constraint: Linux host support with existing dependencies and allocation tracking
Rejected: Bare descriptor registry | close, duplication and reuse invalidate identity
Rejected: Per-object OFD locks | forked descriptors share the same lock description
Confidence: high
Scope-risk: moderate
Directive: Keep guest resize, truncating open and bounded writes under the same namespace guard
Tested: Ten Linux runtime suites; focused shared-memory ASan/UBSan suite with warnings as errors
Not-tested: Windows build, PS5 hardware and title compatibility
Translate guest named-open flags and permissions to POSIX shared-memory descriptors. Bound guest names and use the existing digest implementation to keep a stable AnyPS5 namespace, including long names and internal slashes. Preserve anonymous and Windows behavior, and record the separate unlink and guest mapping gaps.
Constraint: Builds and tests run only through the enrolled 191 compute service.
Rejected: Direct Linux guest names | cannot represent FreeBSD internal slashes and 1023-byte names.
Tested: Source review and diff checks; baseline job100619 accepted, result retrieval currently times out.
Not-tested: Runtime verification pending on191; full build, Windows and titles.
Confidence: medium
Scope-risk: narrow
In #3338, Ratchet & Clank: Rift Apart (PPSA01474) hits a 36 GB / 5 s
memcpy stall at frame ~380 right after intro logos because the GPU
worker thread is blocked copying multi-gigabyte storage buffers on every
draw snapshot miss (specifically a 3.01 GiB streaming range
0x118f800000+0xbc200000 and a 232 MiB range 0x1171258040+0xe7fffc0
across 130,000 draws).
ShaderResources::PrepareDrawBindings now caps both per-allocation and
cumulative draw input buffer snapshot copies at 64 MiB by default,
overridable via APS5_DRAW_SNAPSHOT_MAX_MIB. Inputs exceeding the threshold
skip snapshotting and bind directly in place, preventing multi-gigabyte
memory copies while preserving standard small uniforms and draw arguments.
Budget allocation prioritises earlier descriptor bindings in deterministic
pipeline layout order.
Adds drawSnapshotCapTests in core/libs/prx/libSceAgcDriver/tests/Recorder.cpp
verifying individual and cumulative capping, cross-platform cache behavior on
watched and compared hosts, and direct observation of subsequent CPU writes
on in-place bound ranges exceeding the cap. Exercised via --draw-snapshot-cap-only
registered as agc_draw_snapshot_cap in libSceAgcDriver/CMakeLists.txt.
The bundled SDL builds its PipeWire, PulseAudio and ALSA drivers only
when their development files are found, and otherwise keeps just the
silent dummy and disk drivers without an error. The Linux CI and
release jobs install none of them, so the v0.1.1 Linux libraries
(libSceAudioOut, libSceAgcDriver, libfmod) contain no audible driver.
Fail configuration on Linux when SDL found none of the three, install
the Debian development packages in the Linux build and release jobs,
and list the packages in the build instructions.