Index: /trunk/include/VBox/sup.h
===================================================================
--- /trunk/include/VBox/sup.h	(revision 40949)
+++ /trunk/include/VBox/sup.h	(revision 40950)
@@ -226,5 +226,9 @@
 } SUPGLOBALINFOPAGE;
 AssertCompileMemberAlignment(SUPGLOBALINFOPAGE, u64NanoTSLastUpdateHz, 8);
+#if defined(RT_ARCH_SPARC) || defined(RT_ARCH_SPARC64)
+AssertCompileMemberAlignment(SUPGLOBALINFOPAGE, aCPUs, 32);
+#else
 AssertCompileMemberAlignment(SUPGLOBALINFOPAGE, aCPUs, 256);
+#endif
 
 /** Pointer to the global info page.