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[bug] NB-13 Parallels double-Control/input control-channel lockup remains unproven #487

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@ryanbreen

Turn 55 attempted NB-13 reproduction on ARM64/Parallels. Evidence was contaminated by Parallels prlctl capture/control-channel hangs and an unrelated pre-input soft-lockup dump in scheduler/VirtGPU territory. No kernel fix retained. Artifacts in turn55-artifacts/. Needs clean reproduction path and likely high-scrutiny/prohibited signoff before scheduler/graphics edits.


type=bug | priority=P0 | bd status=in_progress

Migrated from bd issue breenix-z1n.

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