diff --git a/src/sys/create.c b/src/sys/create.c
index 7e2876de..f8cb76a0 100644
--- a/src/sys/create.c
+++ b/src/sys/create.c
@@ -34,5 +34,19 @@ FspCreate(
     IoCompleteRequest(Irp, IO_NO_INCREMENT);
     Result = STATUS_INVALID_DEVICE_REQUEST;
 
-    FSP_LEAVE_MJ("", 0);
+    FSP_LEAVE_MJ(
+        "FileObject=%p:\"%wZ\", "
+        "DesiredAccess=%#lx, "
+        "ShareAccess=%#x, "
+        "Options=%#lx, "
+        "FileAttributes=%#x, "
+        "AllocationSize=%#lx:%#lx, "
+        "Ea=%p, EaLength=%ld",
+        IrpSp->FileObject->RelatedFileObject, IrpSp->FileObject->FileName,
+        IrpSp->Parameters.Create.SecurityContext->DesiredAccess,
+        IrpSp->Parameters.Create.ShareAccess,
+        IrpSp->Parameters.Create.Options,
+        IrpSp->Parameters.Create.FileAttributes,
+        Irp->Overlay.AllocationSize.HighPart, Irp->Overlay.AllocationSize.LowPart,
+        Irp->AssociatedIrp.SystemBuffer, IrpSp->Parameters.Create.EaLength);
 }
diff --git a/src/sys/debug.c b/src/sys/debug.c
index 39192f74..6827eb90 100644
--- a/src/sys/debug.c
+++ b/src/sys/debug.c
@@ -14,7 +14,7 @@ static ANSI_STRING DbgBreakPointInc = RTL_CONSTANT_STRING("Fsp*");
 BOOLEAN HasDbgBreakPoint(const char *Function)
 {
     /* poor man's breakpoints; work around 32 breakpoints kernel limit */
-    if (KeGetCurrentIrql() > APC_LEVEL)
+    if (KeGetCurrentIrql() > APC_LEVEL) /* FsRtlIsDbcsInExpression restriction */
         return TRUE;
     ANSI_STRING Name;
     RtlInitAnsiString(&Name, Function);
diff --git a/src/sys/driver.h b/src/sys/driver.h
index 7db6a292..d6338421 100644
--- a/src/sys/driver.h
+++ b/src/sys/driver.h
@@ -62,9 +62,10 @@
     FSP_ENTER_(__VA_ARGS__)
 #define FSP_LEAVE_MJ(fmt, ...)          \
     FSP_LEAVE_(" = %s", NtStatusSym(Result),\
-        "'%c', %s%s, Flags=%x, " \
+        "%c%c, %s%s, IrpSp->Flags=%x, " \
         fmt,                            \
         FspDeviceExtension(DeviceObject)->Kind,\
+        Irp->RequestorMode == KernelMode ? 'K' : 'U',\
         IrpMajorFunctionSym(IrpSp->MajorFunction),\
         IrpMinorFunctionSym(IrpSp->MajorFunction, IrpSp->MajorFunction),\
         IrpSp->Flags,                   \