diff mbox

vmdk: Fix creating big description file

Message ID 1385953280-7390-1-git-send-email-famz@redhat.com
State New
Headers show

Commit Message

Fam Zheng Dec. 2, 2013, 3:01 a.m. UTC 
The buffer for description file was 4096 which only covers a few
hundred of extents. This changes the buffer to dynamic allocated with
g_strdup_printf in order to support bigger cases.

Signed-off-by: Fam Zheng <famz@redhat.com>
---
 block/vmdk.c               |   65 +-
 tests/qemu-iotests/059     |    5 +
 tests/qemu-iotests/059.out | 2012 ++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 2058 insertions(+), 24 deletions(-)

Comments

Stefan Hajnoczi Dec. 2, 2013, 1:26 p.m. UTC | #1 
On Mon, Dec 02, 2013 at 11:01:20AM +0800, Fam Zheng wrote:
> The buffer for description file was 4096 which only covers a few
> hundred of extents. This changes the buffer to dynamic allocated with
> g_strdup_printf in order to support bigger cases.
> 
> Signed-off-by: Fam Zheng <famz@redhat.com>
> ---
>  block/vmdk.c               |   65 +-
>  tests/qemu-iotests/059     |    5 +
>  tests/qemu-iotests/059.out | 2012 ++++++++++++++++++++++++++++++++++++++++++++
>  3 files changed, 2058 insertions(+), 24 deletions(-)

Does VMware have a hard limit?  For example, does it open the 1000 GB
twoGbMaxExtentFlat file from your test case?

Minor comments below but feel free to keep the code as-is if you wish:

> @@ -1625,7 +1625,8 @@ static int vmdk_create(const char *filename, QEMUOptionParameter *options,
>          "ddb.adapterType = \"%s\"\n";
>  
>      if (filename_decompose(filename, path, prefix, postfix, PATH_MAX, errp)) {
> -        return -EINVAL;
> +        ret = -EINVAL;
> +        goto exit;
>      }
>      /* Read out options */
>      while (options && options->name) {
> @@ -1651,7 +1652,8 @@ static int vmdk_create(const char *filename, QEMUOptionParameter *options,
>                 strcmp(adapter_type, "lsilogic") &&
>                 strcmp(adapter_type, "legacyESX")) {
>          error_setg(errp, "Unknown adapter type: '%s'", adapter_type);
> -        return -EINVAL;
> +        ret = -EINVAL;
> +        goto exit;
>      }
>      if (strcmp(adapter_type, "ide") != 0) {
>          /* that's the number of heads with which vmware operates when
> @@ -1667,7 +1669,8 @@ static int vmdk_create(const char *filename, QEMUOptionParameter *options,
>                 strcmp(fmt, "twoGbMaxExtentFlat") &&
>                 strcmp(fmt, "streamOptimized")) {
>          error_setg(errp, "Unknown subformat: '%s'", fmt);
> -        return -EINVAL;
> +        ret = -EINVAL;
> +        goto exit;
>      }
>      split = !(strcmp(fmt, "twoGbMaxExtentFlat") &&
>                strcmp(fmt, "twoGbMaxExtentSparse"));
> @@ -1681,22 +1684,25 @@ static int vmdk_create(const char *filename, QEMUOptionParameter *options,
>      }
>      if (flat && backing_file) {
>          error_setg(errp, "Flat image can't have backing file");
> -        return -ENOTSUP;
> +        ret = -ENOTSUP;
> +        goto exit;
>      }
>      if (flat && zeroed_grain) {
>          error_setg(errp, "Flat image can't enable zeroed grain");
> -        return -ENOTSUP;
> +        ret = -ENOTSUP;
> +        goto exit;
>      }
>      if (backing_file) {
>          BlockDriverState *bs = bdrv_new("");
>          ret = bdrv_open(bs, backing_file, NULL, 0, NULL, errp);
>          if (ret != 0) {
>              bdrv_unref(bs);
> -            return ret;
> +            goto exit;
>          }
>          if (strcmp(bs->drv->format_name, "vmdk")) {
>              bdrv_unref(bs);
> -            return -EINVAL;
> +            ret = -EINVAL;
> +            goto exit;
>          }
>          parent_cid = vmdk_read_cid(bs, 0);
>          bdrv_unref(bs);

Changing these to goto isn't really necessary.

> @@ -1730,25 +1737,31 @@ static int vmdk_create(const char *filename, QEMUOptionParameter *options,
>  
>          if (vmdk_create_extent(ext_filename, size,
>                                 flat, compress, zeroed_grain)) {
> -            return -EINVAL;
> +            ret = -EINVAL;
> +            goto exit;
>          }
>          filesize -= size;
>  
>          /* Format description line */
>          snprintf(desc_line, sizeof(desc_line),
>                      desc_extent_line, size / 512, desc_filename);
> -        pstrcat(ext_desc_lines, sizeof(ext_desc_lines), desc_line);
> +        new_desc_lines = g_strdup_printf("%s%s",
> +                                         ext_desc_lines ? : "",
> +                                         desc_line);
> +        g_free(ext_desc_lines);
> +        ext_desc_lines = new_desc_lines;

These lines can be eliminated if you use GString:

/* Format description line */
g_string_append_printf(ext_desc_lines,
                       desc_extent_line,
		       size / 512,
		       desc_filename);
Fam Zheng Dec. 3, 2013, 2:29 a.m. UTC | #2 
On 2013年12月02日 21:26, Stefan Hajnoczi wrote:
> On Mon, Dec 02, 2013 at 11:01:20AM +0800, Fam Zheng wrote:
>> The buffer for description file was 4096 which only covers a few
>> hundred of extents. This changes the buffer to dynamic allocated with
>> g_strdup_printf in order to support bigger cases.
>>
>> Signed-off-by: Fam Zheng <famz@redhat.com>
>> ---
>>   block/vmdk.c               |   65 +-
>>   tests/qemu-iotests/059     |    5 +
>>   tests/qemu-iotests/059.out | 2012 ++++++++++++++++++++++++++++++++++++++++++++
>>   3 files changed, 2058 insertions(+), 24 deletions(-)
>
> Does VMware have a hard limit?  For example, does it open the 1000 GB
> twoGbMaxExtentFlat file from your test case?
>

Yes it does. The limit is far above this, there is a statement in VMDK 
spec: "Maximum VMDK file size is 2TB." It opens this file from the test 
case, however I can't generate such a twoGbMaxExtentFlat from 
Workstation, because it will be automatically forced to monolithicFlat 
(if the size is above certain threshold).

> Minor comments below but feel free to keep the code as-is if you wish:
>
>> @@ -1625,7 +1625,8 @@ static int vmdk_create(const char *filename, QEMUOptionParameter *options,
>>           "ddb.adapterType = \"%s\"\n";
>>
>>       if (filename_decompose(filename, path, prefix, postfix, PATH_MAX, errp)) {
>> -        return -EINVAL;
>> +        ret = -EINVAL;
>> +        goto exit;
>>       }
>>       /* Read out options */
>>       while (options && options->name) {
>> @@ -1651,7 +1652,8 @@ static int vmdk_create(const char *filename, QEMUOptionParameter *options,
>>                  strcmp(adapter_type, "lsilogic") &&
>>                  strcmp(adapter_type, "legacyESX")) {
>>           error_setg(errp, "Unknown adapter type: '%s'", adapter_type);
>> -        return -EINVAL;
>> +        ret = -EINVAL;
>> +        goto exit;
>>       }
>>       if (strcmp(adapter_type, "ide") != 0) {
>>           /* that's the number of heads with which vmware operates when
>> @@ -1667,7 +1669,8 @@ static int vmdk_create(const char *filename, QEMUOptionParameter *options,
>>                  strcmp(fmt, "twoGbMaxExtentFlat") &&
>>                  strcmp(fmt, "streamOptimized")) {
>>           error_setg(errp, "Unknown subformat: '%s'", fmt);
>> -        return -EINVAL;
>> +        ret = -EINVAL;
>> +        goto exit;
>>       }
>>       split = !(strcmp(fmt, "twoGbMaxExtentFlat") &&
>>                 strcmp(fmt, "twoGbMaxExtentSparse"));
>> @@ -1681,22 +1684,25 @@ static int vmdk_create(const char *filename, QEMUOptionParameter *options,
>>       }
>>       if (flat && backing_file) {
>>           error_setg(errp, "Flat image can't have backing file");
>> -        return -ENOTSUP;
>> +        ret = -ENOTSUP;
>> +        goto exit;
>>       }
>>       if (flat && zeroed_grain) {
>>           error_setg(errp, "Flat image can't enable zeroed grain");
>> -        return -ENOTSUP;
>> +        ret = -ENOTSUP;
>> +        goto exit;
>>       }
>>       if (backing_file) {
>>           BlockDriverState *bs = bdrv_new("");
>>           ret = bdrv_open(bs, backing_file, NULL, 0, NULL, errp);
>>           if (ret != 0) {
>>               bdrv_unref(bs);
>> -            return ret;
>> +            goto exit;
>>           }
>>           if (strcmp(bs->drv->format_name, "vmdk")) {
>>               bdrv_unref(bs);
>> -            return -EINVAL;
>> +            ret = -EINVAL;
>> +            goto exit;
>>           }
>>           parent_cid = vmdk_read_cid(bs, 0);
>>           bdrv_unref(bs);
>
> Changing these to goto isn't really necessary.
>

Just that I'd like to keep it consistent that exit point is either 
direct return statement or goto jump, in one function, so it will be 
easy to reason the code path.

>> @@ -1730,25 +1737,31 @@ static int vmdk_create(const char *filename, QEMUOptionParameter *options,
>>
>>           if (vmdk_create_extent(ext_filename, size,
>>                                  flat, compress, zeroed_grain)) {
>> -            return -EINVAL;
>> +            ret = -EINVAL;
>> +            goto exit;
>>           }
>>           filesize -= size;
>>
>>           /* Format description line */
>>           snprintf(desc_line, sizeof(desc_line),
>>                       desc_extent_line, size / 512, desc_filename);
>> -        pstrcat(ext_desc_lines, sizeof(ext_desc_lines), desc_line);
>> +        new_desc_lines = g_strdup_printf("%s%s",
>> +                                         ext_desc_lines ? : "",
>> +                                         desc_line);
>> +        g_free(ext_desc_lines);
>> +        ext_desc_lines = new_desc_lines;
>
> These lines can be eliminated if you use GString:
>
> /* Format description line */
> g_string_append_printf(ext_desc_lines,
>                         desc_extent_line,
> 		       size / 512,
> 		       desc_filename);
>

OK, good idea. Thanks

Fam
Stefan Hajnoczi Dec. 3, 2013, 8:42 a.m. UTC | #3 
On Tue, Dec 03, 2013 at 10:29:14AM +0800, Fam Zheng wrote:
> On 2013年12月02日 21:26, Stefan Hajnoczi wrote:
> >On Mon, Dec 02, 2013 at 11:01:20AM +0800, Fam Zheng wrote:
> >>The buffer for description file was 4096 which only covers a few
> >>hundred of extents. This changes the buffer to dynamic allocated with
> >>g_strdup_printf in order to support bigger cases.
> >>
> >>Signed-off-by: Fam Zheng <famz@redhat.com>
> >>---
> >>  block/vmdk.c               |   65 +-
> >>  tests/qemu-iotests/059     |    5 +
> >>  tests/qemu-iotests/059.out | 2012 ++++++++++++++++++++++++++++++++++++++++++++
> >>  3 files changed, 2058 insertions(+), 24 deletions(-)
> >
> >Does VMware have a hard limit?  For example, does it open the 1000 GB
> >twoGbMaxExtentFlat file from your test case?
> >
> 
> Yes it does. The limit is far above this, there is a statement in
> VMDK spec: "Maximum VMDK file size is 2TB." It opens this file from
> the test case, however I can't generate such a twoGbMaxExtentFlat
> from Workstation, because it will be automatically forced to
> monolithicFlat (if the size is above certain threshold).

Okay, good.  Thanks for explaining.

Stefan
diff mbox

Patch

diff --git a/block/vmdk.c b/block/vmdk.c
index a7ebd0f..77cfb0a 100644
--- a/block/vmdk.c
+++ b/block/vmdk.c
@@ -1588,7 +1588,7 @@  static int vmdk_create(const char *filename, QEMUOptionParameter *options,
                        Error **errp)
 {
     int fd, idx = 0;
-    char desc[BUF_SIZE];
+    char *desc = NULL;
     int64_t total_size = 0, filesize;
     const char *adapter_type = NULL;
     const char *backing_file = NULL;
@@ -1596,7 +1596,7 @@  static int vmdk_create(const char *filename, QEMUOptionParameter *options,
     int flags = 0;
     int ret = 0;
     bool flat, split, compress;
-    char ext_desc_lines[BUF_SIZE] = "";
+    char *ext_desc_lines = NULL;
     char path[PATH_MAX], prefix[PATH_MAX], postfix[PATH_MAX];
     const int64_t split_size = 0x80000000;  /* VMDK has constant split size */
     const char *desc_extent_line;
@@ -1625,7 +1625,8 @@  static int vmdk_create(const char *filename, QEMUOptionParameter *options,
         "ddb.adapterType = \"%s\"\n";
 
     if (filename_decompose(filename, path, prefix, postfix, PATH_MAX, errp)) {
-        return -EINVAL;
+        ret = -EINVAL;
+        goto exit;
     }
     /* Read out options */
     while (options && options->name) {
@@ -1651,7 +1652,8 @@  static int vmdk_create(const char *filename, QEMUOptionParameter *options,
                strcmp(adapter_type, "lsilogic") &&
                strcmp(adapter_type, "legacyESX")) {
         error_setg(errp, "Unknown adapter type: '%s'", adapter_type);
-        return -EINVAL;
+        ret = -EINVAL;
+        goto exit;
     }
     if (strcmp(adapter_type, "ide") != 0) {
         /* that's the number of heads with which vmware operates when
@@ -1667,7 +1669,8 @@  static int vmdk_create(const char *filename, QEMUOptionParameter *options,
                strcmp(fmt, "twoGbMaxExtentFlat") &&
                strcmp(fmt, "streamOptimized")) {
         error_setg(errp, "Unknown subformat: '%s'", fmt);
-        return -EINVAL;
+        ret = -EINVAL;
+        goto exit;
     }
     split = !(strcmp(fmt, "twoGbMaxExtentFlat") &&
               strcmp(fmt, "twoGbMaxExtentSparse"));
@@ -1681,22 +1684,25 @@  static int vmdk_create(const char *filename, QEMUOptionParameter *options,
     }
     if (flat && backing_file) {
         error_setg(errp, "Flat image can't have backing file");
-        return -ENOTSUP;
+        ret = -ENOTSUP;
+        goto exit;
     }
     if (flat && zeroed_grain) {
         error_setg(errp, "Flat image can't enable zeroed grain");
-        return -ENOTSUP;
+        ret = -ENOTSUP;
+        goto exit;
     }
     if (backing_file) {
         BlockDriverState *bs = bdrv_new("");
         ret = bdrv_open(bs, backing_file, NULL, 0, NULL, errp);
         if (ret != 0) {
             bdrv_unref(bs);
-            return ret;
+            goto exit;
         }
         if (strcmp(bs->drv->format_name, "vmdk")) {
             bdrv_unref(bs);
-            return -EINVAL;
+            ret = -EINVAL;
+            goto exit;
         }
         parent_cid = vmdk_read_cid(bs, 0);
         bdrv_unref(bs);
@@ -1711,6 +1717,7 @@  static int vmdk_create(const char *filename, QEMUOptionParameter *options,
         char ext_filename[PATH_MAX];
         char desc_filename[PATH_MAX];
         int64_t size = filesize;
+        char *new_desc_lines = NULL;
 
         if (split && size > split_size) {
             size = split_size;
@@ -1730,25 +1737,31 @@  static int vmdk_create(const char *filename, QEMUOptionParameter *options,
 
         if (vmdk_create_extent(ext_filename, size,
                                flat, compress, zeroed_grain)) {
-            return -EINVAL;
+            ret = -EINVAL;
+            goto exit;
         }
         filesize -= size;
 
         /* Format description line */
         snprintf(desc_line, sizeof(desc_line),
                     desc_extent_line, size / 512, desc_filename);
-        pstrcat(ext_desc_lines, sizeof(ext_desc_lines), desc_line);
+        new_desc_lines = g_strdup_printf("%s%s",
+                                         ext_desc_lines ? : "",
+                                         desc_line);
+        g_free(ext_desc_lines);
+        ext_desc_lines = new_desc_lines;
     }
     /* generate descriptor file */
-    snprintf(desc, sizeof(desc), desc_template,
-            (unsigned int)time(NULL),
-            parent_cid,
-            fmt,
-            parent_desc_line,
-            ext_desc_lines,
-            (flags & BLOCK_FLAG_COMPAT6 ? 6 : 4),
-            total_size / (int64_t)(63 * number_heads * 512), number_heads,
-                adapter_type);
+    desc = g_strdup_printf(desc_template,
+                           (unsigned int)time(NULL),
+                           parent_cid,
+                           fmt,
+                           parent_desc_line,
+                           ext_desc_lines,
+                           (flags & BLOCK_FLAG_COMPAT6 ? 6 : 4),
+                           total_size / (int64_t)(63 * number_heads * 512),
+                           number_heads,
+                           adapter_type);
     if (split || flat) {
         fd = qemu_open(filename,
                        O_WRONLY | O_CREAT | O_TRUNC | O_BINARY | O_LARGEFILE,
@@ -1759,21 +1772,25 @@  static int vmdk_create(const char *filename, QEMUOptionParameter *options,
                        0644);
     }
     if (fd < 0) {
-        return -errno;
+        ret = -errno;
+        goto exit;
     }
     /* the descriptor offset = 0x200 */
     if (!split && !flat && 0x200 != lseek(fd, 0x200, SEEK_SET)) {
         ret = -errno;
-        goto exit;
+        goto close_exit;
     }
     ret = qemu_write_full(fd, desc, strlen(desc));
     if (ret != strlen(desc)) {
         ret = -errno;
-        goto exit;
+        goto close_exit;
     }
     ret = 0;
-exit:
+close_exit:
     qemu_close(fd);
+exit:
+    g_free(desc);
+    g_free(ext_desc_lines);
     return ret;
 }
 
diff --git a/tests/qemu-iotests/059 b/tests/qemu-iotests/059
index 6a27ac9..ec896c8 100755
--- a/tests/qemu-iotests/059
+++ b/tests/qemu-iotests/059
@@ -75,6 +75,11 @@  echo
 echo "=== Testing monolithicFlat with zeroed_grain ==="
 IMGOPTS="subformat=monolithicFlat,zeroed_grain=on" _make_test_img 2G
 
+echo
+echo "=== Testing big twoGbMaxExtentFlat ==="
+IMGOPTS="subformat=twoGbMaxExtentFlat" _make_test_img 1000G
+$QEMU_IMG info $TEST_IMG | _filter_testdir
+
 # success, all done
 echo "*** done"
 rm -f $seq.full
diff --git a/tests/qemu-iotests/059.out b/tests/qemu-iotests/059.out
index 2ded8a9..3d8d7a0 100644
--- a/tests/qemu-iotests/059.out
+++ b/tests/qemu-iotests/059.out
@@ -25,4 +25,2016 @@  virtual size: 2.0G (2147483648 bytes)
 === Testing monolithicFlat with zeroed_grain ===
 qemu-img: TEST_DIR/t.IMGFMT: Flat image can't enable zeroed grain
 Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=2147483648
+
+=== Testing big twoGbMaxExtentFlat ===
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824000
+image: TEST_DIR/t.vmdk
+file format: vmdk
+virtual size: 1.0T (1073741824000 bytes)
+disk size: 16K
+Format specific information:
+    cid: 1385952449
+    parent cid: 4294967295
+    create type: twoGbMaxExtentFlat
+    extents:
+        [0]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f001.vmdk
+            format: FLAT
+        [1]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f002.vmdk
+            format: FLAT
+        [2]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f003.vmdk
+            format: FLAT
+        [3]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f004.vmdk
+            format: FLAT
+        [4]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f005.vmdk
+            format: FLAT
+        [5]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f006.vmdk
+            format: FLAT
+        [6]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f007.vmdk
+            format: FLAT
+        [7]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f008.vmdk
+            format: FLAT
+        [8]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f009.vmdk
+            format: FLAT
+        [9]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f010.vmdk
+            format: FLAT
+        [10]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f011.vmdk
+            format: FLAT
+        [11]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f012.vmdk
+            format: FLAT
+        [12]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f013.vmdk
+            format: FLAT
+        [13]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f014.vmdk
+            format: FLAT
+        [14]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f015.vmdk
+            format: FLAT
+        [15]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f016.vmdk
+            format: FLAT
+        [16]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f017.vmdk
+            format: FLAT
+        [17]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f018.vmdk
+            format: FLAT
+        [18]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f019.vmdk
+            format: FLAT
+        [19]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f020.vmdk
+            format: FLAT
+        [20]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f021.vmdk
+            format: FLAT
+        [21]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f022.vmdk
+            format: FLAT
+        [22]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f023.vmdk
+            format: FLAT
+        [23]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f024.vmdk
+            format: FLAT
+        [24]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f025.vmdk
+            format: FLAT
+        [25]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f026.vmdk
+            format: FLAT
+        [26]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f027.vmdk
+            format: FLAT
+        [27]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f028.vmdk
+            format: FLAT
+        [28]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f029.vmdk
+            format: FLAT
+        [29]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f030.vmdk
+            format: FLAT
+        [30]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f031.vmdk
+            format: FLAT
+        [31]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f032.vmdk
+            format: FLAT
+        [32]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f033.vmdk
+            format: FLAT
+        [33]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f034.vmdk
+            format: FLAT
+        [34]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f035.vmdk
+            format: FLAT
+        [35]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f036.vmdk
+            format: FLAT
+        [36]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f037.vmdk
+            format: FLAT
+        [37]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f038.vmdk
+            format: FLAT
+        [38]:
+            virtual size: 2147483648
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+            filename: TEST_DIR/t-f402.vmdk
+            format: FLAT
+        [402]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f403.vmdk
+            format: FLAT
+        [403]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f404.vmdk
+            format: FLAT
+        [404]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f405.vmdk
+            format: FLAT
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+            virtual size: 2147483648
+            filename: TEST_DIR/t-f406.vmdk
+            format: FLAT
+        [406]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f407.vmdk
+            format: FLAT
+        [407]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f408.vmdk
+            format: FLAT
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+            virtual size: 2147483648
+            filename: TEST_DIR/t-f409.vmdk
+            format: FLAT
+        [409]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f410.vmdk
+            format: FLAT
+        [410]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f411.vmdk
+            format: FLAT
+        [411]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f412.vmdk
+            format: FLAT
+        [412]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f413.vmdk
+            format: FLAT
+        [413]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f414.vmdk
+            format: FLAT
+        [414]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f415.vmdk
+            format: FLAT
+        [415]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f416.vmdk
+            format: FLAT
+        [416]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f417.vmdk
+            format: FLAT
+        [417]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f418.vmdk
+            format: FLAT
+        [418]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f419.vmdk
+            format: FLAT
+        [419]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f420.vmdk
+            format: FLAT
+        [420]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f421.vmdk
+            format: FLAT
+        [421]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f422.vmdk
+            format: FLAT
+        [422]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f423.vmdk
+            format: FLAT
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+            virtual size: 2147483648
+            filename: TEST_DIR/t-f424.vmdk
+            format: FLAT
+        [424]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f425.vmdk
+            format: FLAT
+        [425]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f426.vmdk
+            format: FLAT
+        [426]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f427.vmdk
+            format: FLAT
+        [427]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f428.vmdk
+            format: FLAT
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+            virtual size: 2147483648
+            filename: TEST_DIR/t-f429.vmdk
+            format: FLAT
+        [429]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f430.vmdk
+            format: FLAT
+        [430]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f431.vmdk
+            format: FLAT
+        [431]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f432.vmdk
+            format: FLAT
+        [432]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f433.vmdk
+            format: FLAT
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+            virtual size: 2147483648
+            filename: TEST_DIR/t-f434.vmdk
+            format: FLAT
+        [434]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f435.vmdk
+            format: FLAT
+        [435]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f436.vmdk
+            format: FLAT
+        [436]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f437.vmdk
+            format: FLAT
+        [437]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f438.vmdk
+            format: FLAT
+        [438]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f439.vmdk
+            format: FLAT
+        [439]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f440.vmdk
+            format: FLAT
+        [440]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f441.vmdk
+            format: FLAT
+        [441]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f442.vmdk
+            format: FLAT
+        [442]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f443.vmdk
+            format: FLAT
+        [443]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f444.vmdk
+            format: FLAT
+        [444]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f445.vmdk
+            format: FLAT
+        [445]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f446.vmdk
+            format: FLAT
+        [446]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f447.vmdk
+            format: FLAT
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+            virtual size: 2147483648
+            filename: TEST_DIR/t-f448.vmdk
+            format: FLAT
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+            virtual size: 2147483648
+            filename: TEST_DIR/t-f449.vmdk
+            format: FLAT
+        [449]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f450.vmdk
+            format: FLAT
+        [450]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f451.vmdk
+            format: FLAT
+        [451]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f452.vmdk
+            format: FLAT
+        [452]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f453.vmdk
+            format: FLAT
+        [453]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f454.vmdk
+            format: FLAT
+        [454]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f455.vmdk
+            format: FLAT
+        [455]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f456.vmdk
+            format: FLAT
+        [456]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f457.vmdk
+            format: FLAT
+        [457]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f458.vmdk
+            format: FLAT
+        [458]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f459.vmdk
+            format: FLAT
+        [459]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f460.vmdk
+            format: FLAT
+        [460]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f461.vmdk
+            format: FLAT
+        [461]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f462.vmdk
+            format: FLAT
+        [462]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f463.vmdk
+            format: FLAT
+        [463]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f464.vmdk
+            format: FLAT
+        [464]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f465.vmdk
+            format: FLAT
+        [465]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f466.vmdk
+            format: FLAT
+        [466]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f467.vmdk
+            format: FLAT
+        [467]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f468.vmdk
+            format: FLAT
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+            virtual size: 2147483648
+            filename: TEST_DIR/t-f469.vmdk
+            format: FLAT
+        [469]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f470.vmdk
+            format: FLAT
+        [470]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f471.vmdk
+            format: FLAT
+        [471]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f472.vmdk
+            format: FLAT
+        [472]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f473.vmdk
+            format: FLAT
+        [473]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f474.vmdk
+            format: FLAT
+        [474]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f475.vmdk
+            format: FLAT
+        [475]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f476.vmdk
+            format: FLAT
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+            virtual size: 2147483648
+            filename: TEST_DIR/t-f477.vmdk
+            format: FLAT
+        [477]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f478.vmdk
+            format: FLAT
+        [478]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f479.vmdk
+            format: FLAT
+        [479]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f480.vmdk
+            format: FLAT
+        [480]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f481.vmdk
+            format: FLAT
+        [481]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f482.vmdk
+            format: FLAT
+        [482]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f483.vmdk
+            format: FLAT
+        [483]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f484.vmdk
+            format: FLAT
+        [484]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f485.vmdk
+            format: FLAT
+        [485]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f486.vmdk
+            format: FLAT
+        [486]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f487.vmdk
+            format: FLAT
+        [487]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f488.vmdk
+            format: FLAT
+        [488]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f489.vmdk
+            format: FLAT
+        [489]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f490.vmdk
+            format: FLAT
+        [490]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f491.vmdk
+            format: FLAT
+        [491]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f492.vmdk
+            format: FLAT
+        [492]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f493.vmdk
+            format: FLAT
+        [493]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f494.vmdk
+            format: FLAT
+        [494]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f495.vmdk
+            format: FLAT
+        [495]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f496.vmdk
+            format: FLAT
+        [496]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f497.vmdk
+            format: FLAT
+        [497]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f498.vmdk
+            format: FLAT
+        [498]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f499.vmdk
+            format: FLAT
+        [499]:
+            virtual size: 2147483648
+            filename: TEST_DIR/t-f500.vmdk
+            format: FLAT
 *** done