Index: drivers/filesystems/ffs/src/debug.c
===================================================================
--- drivers/filesystems/ffs/src/debug.c	(revision 71918)
+++ drivers/filesystems/ffs/src/debug.c	(working copy)
@@ -374,7 +374,7 @@
 							(IoStackLocation->MinorFunction & IRP_MN_COMPRESSED ? "IRP_MN_COMPRESSED " : " "),
 							(Irp->Flags & IRP_PAGING_IO ? "IRP_PAGING_IO " : " "),
 							(Irp->Flags & IRP_NOCACHE ? "IRP_NOCACHE " : " "),
-							(FileObject->Flags & FO_SYNCHRONOUS_IO ? "FO_SYNCHRONOUS_IO " : " ")));
+							(FileObject && (FileObject->Flags & FO_SYNCHRONOUS_IO) ? "FO_SYNCHRONOUS_IO " : " ")));
 			}
 
 			break;
@@ -403,7 +403,7 @@
 							(IoStackLocation->MinorFunction & IRP_MN_COMPRESSED ? "IRP_MN_COMPRESSED " : " "),
 							(Irp->Flags & IRP_PAGING_IO ? "IRP_PAGING_IO " : " "),
 							(Irp->Flags & IRP_NOCACHE ? "IRP_NOCACHE " : " "),
-							(FileObject->Flags & FO_SYNCHRONOUS_IO ? "FO_SYNCHRONOUS_IO " : " ")));
+							(FileObject && (FileObject->Flags & FO_SYNCHRONOUS_IO) ? "FO_SYNCHRONOUS_IO " : " ")));
 			}
 
 			break;