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Layer 1 arms the texture object surfaces at MipmapStorage (the one point every concrete
texture class and view forwards through): AllocateStorage, TruncateMipmapLevels,
UpdateMipmapSubData, MapMipmapData, MarkStorageDirty(Region), IsStorageDirty,
GetStorageDirtyRegion(s) take Fatal{RoleViolation, texture-legacy-arm} from the apply
thread with an active transport. What the lane then exposed is fixed, not exempted: the
completeness gate answers from the staged store's defined-ness, the two logging reads go
through the descriptor macro, and the remint replay loop keeps its named
Fatal{UnmigratedEmulation} ahead of the guard. Magma's texture sync read path is the one
named exemption (MGPipeTextureLegacyArmScope, P7). Layer 2 wires InBarrierWait as the
client half of the gPipeInputs single-writer rule (RefusePipeInputsTouchWhileApplierOwnsIt:
applier owns it AND this thread not in a barrier wait => Fatal{RoleViolation,
gPipeInputs}; the barrier-off negative control is deferred to its own Fatal), and stale
reads of RECORD-SUPPLIED / APPLIER-DERIVED fields under a server stamp now report
RoleViolation with the field named. The RemoteGuards suite pins all nine texture surfaces
plus HasDefinedContent by name, and a negative control for the fill window. CI gains the
integration-split-strict job: unit lane as the hard gate under MOBILEGL_IPC_STRICT_ERRORS=1,
the scenario lane expected-red with the marker asserted (rewritable to plain green once P7
retires the object-class rows). rsp is per-frame in the stats line and measured on the
locally available traces (bsl in-world 948.5/frame avg over 123 frames, complementary
1591.9, iterationrp 286 until its named remint-pull Fatal); value-class pulls are zero by
rv's pinned list, what remains is the object-class fifteen.
Evidence: unit 2187/2187 (also under STRICT_ERRORS=1); integration-split 111/111; red-once
per layer (the texture guard and the gPipeInputs guard each turned their named death test
red and restored green). CONTRACT-P5C sections 5.4, 6.