- Fix another typo in CommonDispatchException (with yet another critical flaw as a result). Sometimes, exceptions would incorrectly be detected as coming from user-mode even though CS was kernel mode. When creating the KTRAP_FRAME, the kernel would then add the Ring 3 RPL_MASK (3) (because it believed we're in usermode) to the kernel-mode CS, creating the invalid CS of 0xB, which would lead into a GPF during the iretd.

- Re-enable DebugPrint since this now works.

svn path=/trunk/; revision=25976

reactos/lib/rtl/debug.c

@@ -23,7 +23,6 @@ DebugPrint(IN PANSI_STRING DebugString,
            IN ULONG Level)
 {
     /* Call the INT2D Service */
-    return STATUS_SUCCESS;
     return DebugService(BREAKPOINT_PRINT,
                         DebugString->Buffer,
                         DebugString->Length,

reactos/ntoskrnl/kd/kdmain.c

@@ -127,6 +127,7 @@ KdpEnterDebuggerException(IN PKTRAP_FRAME TrapFrame,
 
         /* This we can handle: simply bump EIP */
         Context->Eip++;
+        return TRUE;
     }
 
     /* Get out of here if the Debugger isn't connected */

reactos/ntoskrnl/ke/i386/trap.s

@@ -604,7 +604,7 @@ NoParams:
 
     /* Set the record in ECX and check if this was V86 */
     mov ecx, esp
-    test dword ptr [esp+KTRAP_FRAME_EFLAGS], EFLAGS_V86_MASK
+    test dword ptr [ebp+KTRAP_FRAME_EFLAGS], EFLAGS_V86_MASK
     jz SetPreviousMode
 
     /* Set V86 mode */
@@ -791,6 +791,7 @@ EnableInterrupts3:
     sti
 
 PrepInt3:
+
     /* Prepare the exception */
     mov esi, ecx
     mov edi, edx