docs/api-37-emulator-crash.md claimed "Both swiftshader_indirect and host crash...
The crash is in the gralloc mapper, below the renderer." Re-measured, seven runs,
one variable each: that is wrong. The mapper is below the renderer, but whether its
bad path is reached is not.
-gpu host gles_mode_selected:host never boots (57-71 aborts, looping)
-gpu swangle_indirect gles_mode_selected:swangle boots, 85 s (1 abort)
-gpu angle_indirect gles_mode_selected:swangle boots, 112 s (2 aborts)
The old claim rested on two samples of two different things, neither of them ANGLE:
the local swiftshader_indirect sample was void, because on this host every
SwiftShader-GLES launch segfaults the emulator before the guest matters (the
execheap bug in docs/local-emulator.md, not understood when that file was written),
and the CI sample was a single swiftshader_indirect run.
Also re-derived, and null: android-37.1 rev 8 -- a stable REL image the doc's own
"new image revision" trigger was too narrow to catch -- fails identically;
-feature -GLDMA,-GLDMA2,-GLDirectMem is accepted and changes nothing; the image's
advancedFeatures.ini is byte-identical to API 36's but for one camera line; and
there is still no ATD image above API 36.
The mechanism, end to end: SystemUI registers a nav-bar luma-sampling listener,
SurfaceFlinger's RegionSamplingThread locks a GraphicBuffer, Gralloc5 routes into
GoldfishMapper::readFromHost, which asserts, and init SIGKILLs zygote in response --
so the framework restarts under the test run. Disabling SystemUI removes the
listener and the aborts stop dead: 0 in 180 s, against 10-11 per 150 s.
So run-e2e.sh now covers API 37: renderer chosen per level (33-36 need host, 37
must not have it), dotted image labels, SystemUI disabled followed by a deliberate
stop/start, and an abort count printed on every 37 row. The result is 49 tests, 2
failures, 0 errors, 2 skipped, reproduced twice. The two failures are
Media3EngineTest on c2.goldfish.h264.decoder; API 35 under the identical renderer is
49/0/0/2 green, so they are the image and not the renderer.
CI's matrix should still stop at 36, for reasons now written down rather than
assumed. CLAUDE.md is left alone; a replacement bullet is proposed in the doc.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
JMR-devandClaude Opus 5
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