diff --git a/MdeModulePkg/Bus/I2c/I2cDxe/I2cHost.c b/MdeModulePkg/Bus/I2c/I2cDxe/I2cHost.c
index ff99fe4461..319507cfa2 100644
--- a/MdeModulePkg/Bus/I2c/I2cDxe/I2cHost.c
+++ b/MdeModulePkg/Bus/I2c/I2cDxe/I2cHost.c
@@ -2,6 +2,7 @@
   This file implements I2C Host Protocol which provides callers with the ability to 
   do I/O transactions to all of the devices on the I2C bus.
 
+  Copyright (c) 2014, Hewlett-Packard Development Company, L.P.<BR>
   Copyright (c) 2013 - 2014, Intel Corporation. All rights reserved.<BR>
   This program and the accompanying materials
   are licensed and made available under the terms and conditions of the BSD License
@@ -672,6 +673,10 @@ I2cHostI2cBusConfigurationAvailable (
                         I2cHostContext->I2cEvent,
                         &I2cHostContext->Status
                         );
+
+  if (EFI_ERROR (Status)) {
+    DEBUG((DEBUG_ERROR, "I2cHostI2cBusConfigurationAvailable: Error starting I2C operation, %r\n", Status));
+  }
 }
 
 /**
diff --git a/MdeModulePkg/Bus/Pci/UhciDxe/UhciSched.c b/MdeModulePkg/Bus/Pci/UhciDxe/UhciSched.c
index af3f4e5ecd..90f010c998 100644
--- a/MdeModulePkg/Bus/Pci/UhciDxe/UhciSched.c
+++ b/MdeModulePkg/Bus/Pci/UhciDxe/UhciSched.c
@@ -519,7 +519,7 @@ UhciCheckTdStatus (
       // terminate the transfer
       //
       if (!IsLow && (TdHw->ShortPacket == 1) && (Len < Td->DataLen)) {
-        DEBUG ((EFI_D_INFO, "UhciCheckTdStatus: short packet read occured\n"));
+        DEBUG ((EFI_D_VERBOSE, "UhciCheckTdStatus: short packet read occured\n"));
 
         Finished = TRUE;
         goto ON_EXIT;
diff --git a/MdeModulePkg/Core/PiSmmCore/PiSmmIpl.c b/MdeModulePkg/Core/PiSmmCore/PiSmmIpl.c
index 21c69ca6ef..4759579cab 100644
--- a/MdeModulePkg/Core/PiSmmCore/PiSmmIpl.c
+++ b/MdeModulePkg/Core/PiSmmCore/PiSmmIpl.c
@@ -257,7 +257,7 @@ SMM_IPL_EVENT_NOTIFICATION  mSmmIplEvents[] = {
   //
   { TRUE,  FALSE, &gEfiSmmConfigurationProtocolGuid,  SmmIplSmmConfigurationEventNotify, &gEfiSmmConfigurationProtocolGuid,  TPL_NOTIFY,   NULL },
   //
-  // Declare protocl notification on DxeSmmReadyToLock protocols.  When this notification is etablished, 
+  // Declare protocol notification on DxeSmmReadyToLock protocols.  When this notification is established, 
   // the associated event is immediately signalled, so the notification function will be executed and the 
   // DXE SMM Ready To Lock Protocol will be found if it is already in the handle database.
   //
@@ -659,7 +659,7 @@ SmmIplSmmConfigurationEventNotify (
 
 /**
   Event notification that is fired every time a DxeSmmReadyToLock protocol is added
-  or if gEfiEventReadyToBootGuid is signalled.
+  or if gEfiEventReadyToBootGuid is signaled.
 
   @param  Event                 The Event that is being processed, not used.
   @param  Context               Event Context, not used.
@@ -694,7 +694,7 @@ SmmIplReadyToLockEventNotify (
   } else {
     //
     // If SMM is not locked yet and we got here from gEfiEventReadyToBootGuid being 
-    // signalled, then gEfiDxeSmmReadyToLockProtocolGuid was not installed as expected.
+    // signaled, then gEfiDxeSmmReadyToLockProtocolGuid was not installed as expected.
     // Print a warning on debug builds.
     //
     DEBUG ((DEBUG_WARN, "SMM IPL!  DXE SMM Ready To Lock Protocol not installed before Ready To Boot signal\n"));
diff --git a/MdeModulePkg/Universal/Disk/PartitionDxe/Mbr.c b/MdeModulePkg/Universal/Disk/PartitionDxe/Mbr.c
index a35b4f2d0d..4b0159c4fa 100644
--- a/MdeModulePkg/Universal/Disk/PartitionDxe/Mbr.c
+++ b/MdeModulePkg/Universal/Disk/PartitionDxe/Mbr.c
@@ -11,6 +11,7 @@
         always on the first sector of a media. The first sector also contains
         the legacy boot strap code.
 
+Copyright (c) 2014, Hewlett-Packard Development Company, L.P.<BR>
 Copyright (c) 2006 - 2013, Intel Corporation. All rights reserved.<BR>
 This program and the accompanying materials
 are licensed and made available under the terms and conditions of the BSD License
@@ -74,6 +75,9 @@ PartitionValidMbr (
       // return FALSE since no block devices on a system are implemented
       // with INT 13h
       //
+    
+      DEBUG((EFI_D_INFO, "PartitionValidMbr: Bad MBR partition size EndingLBA(%1x) > LastLBA(%1x)\n", EndingLBA, LastLba));
+
       return FALSE;
     }