Index: /trunk/src/VBox/Runtime/r0drv/linux/threadctxhooks-r0drv-linux.c
===================================================================
--- /trunk/src/VBox/Runtime/r0drv/linux/threadctxhooks-r0drv-linux.c	(revision 55975)
+++ /trunk/src/VBox/Runtime/r0drv/linux/threadctxhooks-r0drv-linux.c	(revision 55976)
@@ -209,5 +209,5 @@
                     VERR_INVALID_HANDLE);
     Assert(RTThreadPreemptIsEnabled(NIL_RTTHREAD));
-    Assert(pThis->fEnabled || pThis->hOwner == RTThreadNativeSelf());
+    Assert(!pThis->fEnabled || pThis->hOwner == RTThreadNativeSelf());
 
     /*
Index: /trunk/src/VBox/Runtime/r0drv/solaris/threadctxhooks-r0drv-solaris.c
===================================================================
--- /trunk/src/VBox/Runtime/r0drv/solaris/threadctxhooks-r0drv-solaris.c	(revision 55975)
+++ /trunk/src/VBox/Runtime/r0drv/solaris/threadctxhooks-r0drv-solaris.c	(revision 55976)
@@ -218,5 +218,5 @@
     RTTHREADCTX_VALID_RETURN_RC(hCtxHook, VERR_INVALID_HANDLE);
     Assert(RTThreadPreemptIsEnabled(NIL_RTTHREAD));
-    Assert(pThis->fEnabled || pThis->hOwner == RTThreadNativeSelf());
+    Assert(!pThis->fEnabled || pThis->hOwner == RTThreadNativeSelf());
 
     /*