Index: /trunk/src/VBox/Devices/Storage/DevATA.cpp
===================================================================
--- /trunk/src/VBox/Devices/Storage/DevATA.cpp	(revision 77011)
+++ /trunk/src/VBox/Devices/Storage/DevATA.cpp	(revision 77012)
@@ -1543,4 +1543,5 @@
             (s->uATARegSelect & 0x0f) * s->PCHSGeometry.cSectors +
             (s->uATARegSector - 1);
+        LogFlowFunc(("CHS %u/%u/%u -> LBA %llu\n", (s->uATARegHCyl << 8) | s->uATARegLCyl, s->uATARegSelect & 0x0f, s->uATARegSector, iLBA));
     }
     return iLBA;
@@ -1581,4 +1582,5 @@
         s->uATARegSelect = (s->uATARegSelect & 0xf0) | ((r / s->PCHSGeometry.cSectors) & 0x0f);
         s->uATARegSector = (r % s->PCHSGeometry.cSectors) + 1;
+        LogFlowFunc(("LBA %llu -> CHS %u/%u/%u\n", iLBA, cyl, s->uATARegSelect & 0x0f, s->uATARegSector));
     }
 }