diff --git a/bochs/iodev/hdimage.cc b/bochs/iodev/hdimage.cc
index 60af0f889..fa6c60e12 100644
--- a/bochs/iodev/hdimage.cc
+++ b/bochs/iodev/hdimage.cc
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////
-// $Id: hdimage.cc,v 1.28 2011-01-12 22:34:42 vruppert Exp $
+// $Id: hdimage.cc,v 1.29 2011-01-14 16:43:55 vruppert Exp $
 /////////////////////////////////////////////////////////////////////////
 //
 //  Copyright (C) 2002-2011  The Bochs Project
@@ -35,7 +35,7 @@
 #include <sys/mman.h>
 #endif
 
-#define LOG_THIS bx_devices.pluginHardDrive->
+#define LOG_THIS theHDImageCtl->
 
 bx_hdimage_ctl_c* theHDImageCtl = NULL;
 
@@ -51,6 +51,11 @@ void libhdimage_LTX_plugin_fini(void)
   delete theHDImageCtl;
 }
 
+bx_hdimage_ctl_c::bx_hdimage_ctl_c()
+{
+  put("IMG");
+}
+
 device_image_t* bx_hdimage_ctl_c::init_image(Bit8u image_mode, Bit64u disk_size, const char *journal)
 {
   device_image_t *hdimage = NULL;
@@ -672,8 +677,9 @@ ssize_t sparse_image_t::read(void* buf, size_t count)
 
     BX_ASSERT (can_read != 0);
 
+#if BX_ASSERT_ENABLE
     size_t was_read = read_page_fragment(position_virtual_page, position_page_offset, can_read, buf);
-
+#endif
     BX_ASSERT(was_read == can_read);
 
     total_read += can_read;
@@ -1217,7 +1223,8 @@ Bit64s redolog_t::lseek(Bit64s offset, int whence)
 
 ssize_t redolog_t::read(void* buf, size_t count)
 {
-  Bit64s block_offset, bitmap_offset, ret;
+  Bit64s block_offset, bitmap_offset;
+  ssize_t ret;
 
   if (count != 512) {
     BX_PANIC(("redolog : read() with count not 512"));
@@ -1382,14 +1389,29 @@ Bit64s growing_image_t::lseek(Bit64s offset, int whence)
 
 ssize_t growing_image_t::read(void* buf, size_t count)
 {
+  size_t n = 0;
+  ssize_t ret = 0;
+
   memset(buf, 0, count);
-  redolog->read((char*) buf, count);
-  return count;
+  while (n < count) {
+    ret = redolog->read((char*) buf, 512);
+    if (ret < 0) break;
+    n += 512;
+  }
+  return (ret < 0) ? ret : count;
 }
 
 ssize_t growing_image_t::write(const void* buf, size_t count)
 {
-  return redolog->write((char*) buf, count);
+  size_t n = 0;
+  ssize_t ret = 0;
+
+  while (n < count) {
+    ret = redolog->write((char*) buf, 512);
+    if (ret < 0) break;
+    n += 512;
+  }
+  return (ret < 0) ? ret : count;
 }
 
 /*** undoable_image_t function definitions ***/
diff --git a/bochs/iodev/hdimage.h b/bochs/iodev/hdimage.h
index a0726457f..b1d3c0fe3 100644
--- a/bochs/iodev/hdimage.h
+++ b/bochs/iodev/hdimage.h
@@ -1,8 +1,8 @@
 /////////////////////////////////////////////////////////////////////////
-// $Id: hdimage.h,v 1.17 2011-01-12 22:34:42 vruppert Exp $
+// $Id: hdimage.h,v 1.18 2011-01-14 16:43:55 vruppert Exp $
 /////////////////////////////////////////////////////////////////////////
 //
-//  Copyright (C) 2005-2009  The Bochs Project
+//  Copyright (C) 2005-2011  The Bochs Project
 //
 //  This library is free software; you can redistribute it and/or
 //  modify it under the terms of the GNU Lesser General Public
@@ -578,7 +578,7 @@ class z_volatile_image_t : public device_image_t
 
 class bx_hdimage_ctl_c : public bx_hdimage_ctl_stub_c {
 public:
-  bx_hdimage_ctl_c() {}
+  bx_hdimage_ctl_c();
   virtual ~bx_hdimage_ctl_c() {}
   virtual device_image_t *init_image(Bit8u image_mode, Bit64u disk_size, const char *journal);
 };
diff --git a/bochs/iodev/vmware3.cc b/bochs/iodev/vmware3.cc
index 70088ef20..7af68d441 100644
--- a/bochs/iodev/vmware3.cc
+++ b/bochs/iodev/vmware3.cc
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////
-// $Id: vmware3.cc,v 1.24 2011-01-02 16:51:08 vruppert Exp $
+// $Id: vmware3.cc,v 1.25 2011-01-14 16:43:55 vruppert Exp $
 /////////////////////////////////////////////////////////////////////////
 
 /*
@@ -37,7 +37,8 @@
 #include "vmware3.h"
 
 const off_t vmware3_image_t::INVALID_OFFSET=(off_t)-1;
-#define LOG_THIS bx_devices.pluginHardDrive->
+
+#define LOG_THIS bx_devices.pluginHDImageCtl->
 
 #define DTOH32_HEADER(field) (header.field = (dtoh32(header.field)))
 #define HTOD32_HEADER(field) (header.field = (htod32(header.field)))
diff --git a/bochs/iodev/vmware4.cc b/bochs/iodev/vmware4.cc
index 47b3fb4d9..233ee0558 100644
--- a/bochs/iodev/vmware4.cc
+++ b/bochs/iodev/vmware4.cc
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////
-// $Id: vmware4.cc,v 1.7 2011-01-02 16:51:08 vruppert Exp $
+// $Id: vmware4.cc,v 1.8 2011-01-14 16:43:55 vruppert Exp $
 /////////////////////////////////////////////////////////////////////////
 
 /*
@@ -37,7 +37,8 @@
 #include "hdimage.h"
 #include "vmware4.h"
 
-#define LOG_THIS bx_devices.pluginHardDrive->
+#define LOG_THIS bx_devices.pluginHDImageCtl->
+
 const off_t vmware4_image_t::INVALID_OFFSET = (off_t)-1;
 const int vmware4_image_t::SECTOR_SIZE = 512;
 
diff --git a/bochs/iodev/vvfat.cc b/bochs/iodev/vvfat.cc
index ef11cfaf8..30850390d 100644
--- a/bochs/iodev/vvfat.cc
+++ b/bochs/iodev/vvfat.cc
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////
-// $Id: vvfat.cc,v 1.19 2011-01-14 15:37:36 vruppert Exp $
+// $Id: vvfat.cc,v 1.20 2011-01-14 16:43:55 vruppert Exp $
 /////////////////////////////////////////////////////////////////////////
 //
 //  Copyright (C) 2010/2011  The Bochs Project
@@ -48,7 +48,7 @@
 #include "hdimage.h"
 #include "vvfat.h"
 
-#define LOG_THIS bx_devices.pluginHardDrive->
+#define LOG_THIS bx_devices.pluginHDImageCtl->
 
 #define VVFAT_MBR  "vvfat_mbr.bin"
 #define VVFAT_BOOT "vvfat_boot.bin"