# DF-2088 — ACPI_DEBUG_MEMMAP reuse without unlinking orphans list nodes

## Verdict
REPRODUCED (source-only confirmation). Bug confirmed by source tracing.

## Mechanism
In ACPI_DEBUG_MEMMAP builds, AcpiOsMapMemory (96-116) searches for a track whose base matches and reuses it, but does not unlink it from its old list position before setting acpi_mapbase=track. Nodes before the reused track are orphaned, leaking memory and corrupting tracking.

## Fix
When reusing a found track, unlink it from its current position before re-adding at head. (Fixed as part of DF-2087 lock addition.)

## Batch-build status
Applied with all 24 other fixes; kernel + modules compiled **rc=0, 0 errors, -Werror**.