[Qemu-devel] [PATCH 0/2] Improve qemu-img dd

[Qemu-devel] [PATCH 0/2] Improve qemu-img dd

[Eric Blake]

I was trying to test NBD fleecing by copying subsets of one
file to another, and had the idea to use:

$ export NBD drive to be fleeced on port 10809
$ qemu-img create -f qcow2 copy $size
$ qemu-nbd -f qcow2 -p 10810 copy
$ qemu-img dd -f raw -O raw if=nbd://localhost:10809 of=nbd://localhost:10810 \
    skip=$offset seek=$offset count=$((len/cluster)) bs=$cluster

except that seek= wasn't implemented. And in implementing that,
I learned that skip= is broken when combined with count=.

[In the meantime, I had to use:

$ export NBD drive to be fleeced on port 10809
$ modprobe nbd
$ qemu-nbd -c /dev/nbd0 -f raw nbd://localhost:10809
$ qemu-nbd -c /dev/nbd1 -f qcow2 copy
$ dd if=/dev/nbd0 of/dev/nbd1 \
    skip=$offset seek=$offset count=$((len/cluster)) bs=$cluster

to get the behavior I needed (basically, create an empty qcow2
destination file, then plug in the guest-visible data based on
the subsets of the disk of my choosing, by reading the block
status/dirty bitmap over NBD).  But bouncing through three
NBD client/server pairs just so I can use plain 'dd' instead
of just two pairs with 'qemu-img dd' feels dirty.
]

Eric Blake (2):
  qemu-img: Fix dd with skip= and count=
  qemu-img: Add dd seek= option

 qemu-img.c                 |  76 ++++++----
 tests/qemu-iotests/160     |  15 +-
 tests/qemu-iotests/160.out | 344 ++++++++++++++++++++++++++++++++++++++++++++-
 3 files changed, 397 insertions(+), 38 deletions(-)

-- 
2.14.4

[Qemu-devel] [PATCH 1/2] qemu-img: Fix dd with skip= and count=

[Eric Blake]

When both skip= and count= are active, qemu-img dd was not copying
enough data. It didn't help that the code made the same check for
dd.flags & C_SKIP in two separate places. Compute 'size' as the
amount of bytes to be read, and 'end' as the offset to end at,
rather than trying to cram both meanings into a single variable
(which only worked as long as we had at most one of those two
limiting factors to worry about, but not both).

Enhance the test to cover more combinations, and expose the problem.

Signed-off-by: Eric Blake <eblake@redhat.com>
CC: qemu-stable@nongnu.org
---
 qemu-img.c                 | 39 ++++++++++++++++---------------------
 tests/qemu-iotests/160     |  9 ++++++---
 tests/qemu-iotests/160.out | 48 ++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 70 insertions(+), 26 deletions(-)

diff --git a/qemu-img.c b/qemu-img.c
index 1acddf693c6..d72f0f0ec94 100644
--- a/qemu-img.c
+++ b/qemu-img.c
@@ -4398,7 +4398,7 @@ static int img_dd(int argc, char **argv)
     const char *out_fmt = "raw";
     const char *fmt = NULL;
     int64_t size = 0;
-    int64_t block_count = 0, out_pos, in_pos;
+    int64_t block_count = 0, out_pos, in_pos, end;
     bool force_share = false;
     struct DdInfo dd = {
         .flags = 0,
@@ -4559,19 +4559,23 @@ static int img_dd(int argc, char **argv)
         goto out;
     }

+    /* Overflow means the specified offset is beyond input image's size */
+    if (dd.flags & C_SKIP && (in.offset > INT64_MAX / in.bsz ||
+                              size < in.bsz * in.offset)) {
+        size = 0;
+        error_report("%s: cannot skip to specified offset", in.filename);
+    } else {
+        size -= in.offset * in.bsz;
+        in_pos = in.offset * in.bsz;
+    }
+
     if (dd.flags & C_COUNT && dd.count <= INT64_MAX / in.bsz &&
         dd.count * in.bsz < size) {
         size = dd.count * in.bsz;
     }

-    /* Overflow means the specified offset is beyond input image's size */
-    if (dd.flags & C_SKIP && (in.offset > INT64_MAX / in.bsz ||
-                              size < in.bsz * in.offset)) {
-        qemu_opt_set_number(opts, BLOCK_OPT_SIZE, 0, &error_abort);
-    } else {
-        qemu_opt_set_number(opts, BLOCK_OPT_SIZE,
-                            size - in.bsz * in.offset, &error_abort);
-    }
+    qemu_opt_set_number(opts, BLOCK_OPT_SIZE, size, &error_abort);
+    end = size + in_pos;

     ret = bdrv_create(drv, out.filename, opts, &local_err);
     if (ret < 0) {
@@ -4595,24 +4599,13 @@ static int img_dd(int argc, char **argv)
         goto out;
     }

-    if (dd.flags & C_SKIP && (in.offset > INT64_MAX / in.bsz ||
-                              size < in.offset * in.bsz)) {
-        /* We give a warning if the skip option is bigger than the input
-         * size and create an empty output disk image (i.e. like dd(1)).
-         */
-        error_report("%s: cannot skip to specified offset", in.filename);
-        in_pos = size;
-    } else {
-        in_pos = in.offset * in.bsz;
-    }
-
     in.buf = g_new(uint8_t, in.bsz);

-    for (out_pos = 0; in_pos < size; block_count++) {
+    for (out_pos = 0; in_pos < end; block_count++) {
         int in_ret, out_ret;

-        if (in_pos + in.bsz > size) {
-            in_ret = blk_pread(blk1, in_pos, in.buf, size - in_pos);
+        if (in_pos + in.bsz > end) {
+            in_ret = blk_pread(blk1, in_pos, in.buf, end - in_pos);
         } else {
             in_ret = blk_pread(blk1, in_pos, in.buf, in.bsz);
         }
diff --git a/tests/qemu-iotests/160 b/tests/qemu-iotests/160
index 5c910e5bfc1..48380a3aafc 100755
--- a/tests/qemu-iotests/160
+++ b/tests/qemu-iotests/160
@@ -44,6 +44,7 @@ _supported_os Linux
 TEST_SKIP_BLOCKS="1 2 30 30K"

 for skip in $TEST_SKIP_BLOCKS; do
+  for count in '' 'count=1 '; do
     echo
     echo "== Creating image =="

@@ -53,17 +54,19 @@ for skip in $TEST_SKIP_BLOCKS; do
     $QEMU_IO -c "write -P 0xa 24 512k" "$TEST_IMG" | _filter_qemu_io

     echo
-    echo "== Converting the image with dd with skip=$skip =="
+    echo "== Converting the image with dd with ${count}skip=$skip =="

-    $QEMU_IMG dd if="$TEST_IMG" of="$TEST_IMG.out" skip="$skip" -O "$IMGFMT" \
+    $QEMU_IMG dd if="$TEST_IMG" of="$TEST_IMG.out" $count skip="$skip" -O "$IMGFMT" \
         2> /dev/null
     TEST_IMG="$TEST_IMG.out" _check_test_img
-    dd if="$TEST_IMG" of="$TEST_IMG.out.dd" skip="$skip" status=none
+    dd if="$TEST_IMG" of="$TEST_IMG.out.dd" $count skip="$skip" status=none

     echo
     echo "== Compare the images with qemu-img compare =="

     $QEMU_IMG compare "$TEST_IMG.out.dd" "$TEST_IMG.out"
+    rm "$TEST_IMG.out.dd"
+  done
 done

 echo
diff --git a/tests/qemu-iotests/160.out b/tests/qemu-iotests/160.out
index 9cedc803566..6147a8493d6 100644
--- a/tests/qemu-iotests/160.out
+++ b/tests/qemu-iotests/160.out
@@ -18,6 +18,18 @@ No errors were found on the image.
 wrote 524288/524288 bytes at offset 24
 512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

+== Converting the image with dd with count=1 skip=1 ==
+No errors were found on the image.
+
+== Compare the images with qemu-img compare ==
+Images are identical.
+
+== Creating image ==
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576
+No errors were found on the image.
+wrote 524288/524288 bytes at offset 24
+512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+
 == Converting the image with dd with skip=2 ==
 No errors were found on the image.

@@ -30,6 +42,18 @@ No errors were found on the image.
 wrote 524288/524288 bytes at offset 24
 512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

+== Converting the image with dd with count=1 skip=2 ==
+No errors were found on the image.
+
+== Compare the images with qemu-img compare ==
+Images are identical.
+
+== Creating image ==
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576
+No errors were found on the image.
+wrote 524288/524288 bytes at offset 24
+512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+
 == Converting the image with dd with skip=30 ==
 No errors were found on the image.

@@ -42,10 +66,34 @@ No errors were found on the image.
 wrote 524288/524288 bytes at offset 24
 512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

+== Converting the image with dd with count=1 skip=30 ==
+No errors were found on the image.
+
+== Compare the images with qemu-img compare ==
+Images are identical.
+
+== Creating image ==
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576
+No errors were found on the image.
+wrote 524288/524288 bytes at offset 24
+512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+
 == Converting the image with dd with skip=30K ==
 No errors were found on the image.

 == Compare the images with qemu-img compare ==
 Images are identical.

+== Creating image ==
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576
+No errors were found on the image.
+wrote 524288/524288 bytes at offset 24
+512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+
+== Converting the image with dd with count=1 skip=30K ==
+No errors were found on the image.
+
+== Compare the images with qemu-img compare ==
+Images are identical.
+
 *** done
-- 
2.14.4

[Qemu-devel] [PATCH 1/2] qemu-img: Fix dd with skip= and count=

[Max Reitz]

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On 2018-08-15 04:56, Eric Blake wrote:
> When both skip= and count= are active, qemu-img dd was not copying
> enough data. It didn't help that the code made the same check for
> dd.flags & C_SKIP in two separate places. Compute 'size' as the
> amount of bytes to be read, and 'end' as the offset to end at,
> rather than trying to cram both meanings into a single variable
> (which only worked as long as we had at most one of those two
> limiting factors to worry about, but not both).
> 
> Enhance the test to cover more combinations, and expose the problem.
> 
> Signed-off-by: Eric Blake <eblake@redhat.com>
> CC: qemu-stable@nongnu.org
> ---
>  qemu-img.c                 | 39 ++++++++++++++++---------------------
>  tests/qemu-iotests/160     |  9 ++++++---
>  tests/qemu-iotests/160.out | 48 ++++++++++++++++++++++++++++++++++++++++++++++
>  3 files changed, 70 insertions(+), 26 deletions(-)
> 
> diff --git a/qemu-img.c b/qemu-img.c
> index 1acddf693c6..d72f0f0ec94 100644
> --- a/qemu-img.c
> +++ b/qemu-img.c

[...]

> @@ -4559,19 +4559,23 @@ static int img_dd(int argc, char **argv)
>          goto out;
>      }
> 
> +    /* Overflow means the specified offset is beyond input image's size */
> +    if (dd.flags & C_SKIP && (in.offset > INT64_MAX / in.bsz ||
> +                              size < in.bsz * in.offset)) {
> +        size = 0;
> +        error_report("%s: cannot skip to specified offset", in.filename);

in_pos should be initialized as well (to "size", I suppose), or my gcc
will continue to complain. :-)

The rest looks good to me.

> +    } else {
> +        size -= in.offset * in.bsz;
> +        in_pos = in.offset * in.bsz;
> +    }
> +

[...]

> diff --git a/tests/qemu-iotests/160 b/tests/qemu-iotests/160
> index 5c910e5bfc1..48380a3aafc 100755
> --- a/tests/qemu-iotests/160
> +++ b/tests/qemu-iotests/160
> @@ -44,6 +44,7 @@ _supported_os Linux
>  TEST_SKIP_BLOCKS="1 2 30 30K"
> 
>  for skip in $TEST_SKIP_BLOCKS; do
> +  for count in '' 'count=1 '; do

Ah, so this is why we indent everything by four spaces!  So you can
squeeze in three more block headers without having to re-indent
everything.  I finally see. O:-)

(Not sure why you put a space after the 'count=1', though, but OK)

Max

>      echo
>      echo "== Creating image =="
> 


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Re: [Qemu-devel] [PATCH 1/2] qemu-img: Fix dd with skip= and count=

[Eric Blake]

On 08/15/2018 09:03 PM, Max Reitz wrote:

>> @@ -4559,19 +4559,23 @@ static int img_dd(int argc, char **argv)
>>           goto out;
>>       }
>>
>> +    /* Overflow means the specified offset is beyond input image's size */
>> +    if (dd.flags & C_SKIP && (in.offset > INT64_MAX / in.bsz ||
>> +                              size < in.bsz * in.offset)) {
>> +        size = 0;
>> +        error_report("%s: cannot skip to specified offset", in.filename);
> 
> in_pos should be initialized as well (to "size", I suppose), or my gcc
> will continue to complain. :-)
> 

Serves me right for compiling with -g instead of -O2 (gcc only does that 
warning on optimized builds, for some weird reason).  Will fix in v2.


>> +++ b/tests/qemu-iotests/160
>> @@ -44,6 +44,7 @@ _supported_os Linux
>>   TEST_SKIP_BLOCKS="1 2 30 30K"
>>
>>   for skip in $TEST_SKIP_BLOCKS; do
>> +  for count in '' 'count=1 '; do
> 
> Ah, so this is why we indent everything by four spaces!  So you can
> squeeze in three more block headers without having to re-indent
> everything.  I finally see. O:-)

I'm seriously thinking of reindenting things in this and the next patch, 
rather than my initial quick-and-dirty "squeeze it in".  'git diff -w' 
is not that hard to use, after all.

> 
> (Not sure why you put a space after the 'count=1', though, but OK)

For this line:

+    echo "== Converting the image with dd with ${count}skip=$skip =="

so that when $count is empty, the .out file doesn't end up with a double 
space.  Okay, I do have some sense of output aesthetics, even if my 
re-indentation skills are lacking ;=)

-- 
Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3266
Virtualization:  qemu.org | libvirt.org

Re: [Qemu-devel] [PATCH 1/2] qemu-img: Fix dd with skip= and count=

[Max Reitz]

[-- Attachment #1: Type: text/plain, Size: 1903 bytes --]

On 2018-08-16 04:17, Eric Blake wrote:
> On 08/15/2018 09:03 PM, Max Reitz wrote:
> 
>>> @@ -4559,19 +4559,23 @@ static int img_dd(int argc, char **argv)
>>>           goto out;
>>>       }
>>>
>>> +    /* Overflow means the specified offset is beyond input image's
>>> size */
>>> +    if (dd.flags & C_SKIP && (in.offset > INT64_MAX / in.bsz ||
>>> +                              size < in.bsz * in.offset)) {
>>> +        size = 0;
>>> +        error_report("%s: cannot skip to specified offset",
>>> in.filename);
>>
>> in_pos should be initialized as well (to "size", I suppose), or my gcc
>> will continue to complain. :-)
>>
> 
> Serves me right for compiling with -g instead of -O2 (gcc only does that
> warning on optimized builds, for some weird reason).  Will fix in v2.
> 
> 
>>> +++ b/tests/qemu-iotests/160
>>> @@ -44,6 +44,7 @@ _supported_os Linux
>>>   TEST_SKIP_BLOCKS="1 2 30 30K"
>>>
>>>   for skip in $TEST_SKIP_BLOCKS; do
>>> +  for count in '' 'count=1 '; do
>>
>> Ah, so this is why we indent everything by four spaces!  So you can
>> squeeze in three more block headers without having to re-indent
>> everything.  I finally see. O:-)
> 
> I'm seriously thinking of reindenting things in this and the next patch,
> rather than my initial quick-and-dirty "squeeze it in".  'git diff -w'
> is not that hard to use, after all.
> 
>>
>> (Not sure why you put a space after the 'count=1', though, but OK)
> 
> For this line:
> 
> +    echo "== Converting the image with dd with ${count}skip=$skip =="
> 
> so that when $count is empty, the .out file doesn't end up with a double
> space.  Okay, I do have some sense of output aesthetics, even if my
> re-indentation skills are lacking ;=)

Ah, right, I forgot you'd get the double space.  That's true.

Max


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[Qemu-devel] [PATCH 2/2] qemu-img: Add dd seek= option

[Eric Blake]

For feature parity with dd, we want to be able to specify
the offset within the output file, just as we can specify
the offset for the input (in particular, this makes copying
a subset range of guest-visible bytes from one file to
another much easier).

The code style for 'qemu-img dd' was pretty hard to read;
unfortunately this patch focuses only on adding the new
feature in the existing style rather than trying to improve
the overall flow, other than switching octal constants to
hex.  Oh well.

Also, switch the test to use an offset of 0 instead of 1,
to test skip= and seek= on their own; as it is, this is
effectively quadrupling the test runtime, which starts
to make this test borderline on whether it should still
belong to './check -g quick'.  And I didn't bother to
reindent the test shell code for the new nested loop.

Signed-off-by: Eric Blake <eblake@redhat.com>
---
 qemu-img.c                 |  41 ++++--
 tests/qemu-iotests/160     |  12 +-
 tests/qemu-iotests/160.out | 304 +++++++++++++++++++++++++++++++++++++++++++--
 3 files changed, 336 insertions(+), 21 deletions(-)

diff --git a/qemu-img.c b/qemu-img.c
index d72f0f0ec94..ee01a18f331 100644
--- a/qemu-img.c
+++ b/qemu-img.c
@@ -195,7 +195,8 @@ static void QEMU_NORETURN help(void)
            "  'count=N' copy only N input blocks\n"
            "  'if=FILE' read from FILE\n"
            "  'of=FILE' write to FILE\n"
-           "  'skip=N' skip N bs-sized blocks at the start of input\n";
+           "  'skip=N' skip N bs-sized blocks at the start of input\n"
+           "  'seek=N' skip N bs-sized blocks at the start of output\n";

     printf("%s\nSupported formats:", help_msg);
     bdrv_iterate_format(format_print, NULL);
@@ -4296,11 +4297,12 @@ out:
     return 0;
 }

-#define C_BS      01
-#define C_COUNT   02
-#define C_IF      04
-#define C_OF      010
-#define C_SKIP    020
+#define C_BS      0x1
+#define C_COUNT   0x2
+#define C_IF      0x4
+#define C_OF      0x8
+#define C_SKIP    0x10
+#define C_SEEK    0x20

 struct DdInfo {
     unsigned int flags;
@@ -4383,6 +4385,20 @@ static int img_dd_skip(const char *arg,
     return 0;
 }

+static int img_dd_seek(const char *arg,
+                       struct DdIo *in, struct DdIo *out,
+                       struct DdInfo *dd)
+{
+    out->offset = cvtnum(arg);
+
+    if (out->offset < 0) {
+        error_report("invalid number: '%s'", arg);
+        return 1;
+    }
+
+    return 0;
+}
+
 static int img_dd(int argc, char **argv)
 {
     int ret = 0;
@@ -4399,6 +4415,7 @@ static int img_dd(int argc, char **argv)
     const char *fmt = NULL;
     int64_t size = 0;
     int64_t block_count = 0, out_pos, in_pos, end;
+    int64_t seek = 0;
     bool force_share = false;
     struct DdInfo dd = {
         .flags = 0,
@@ -4423,6 +4440,7 @@ static int img_dd(int argc, char **argv)
         { "if", img_dd_if, C_IF },
         { "of", img_dd_of, C_OF },
         { "skip", img_dd_skip, C_SKIP },
+        { "seek", img_dd_seek, C_SEEK },
         { NULL, NULL, 0 }
     };
     const struct option long_options[] = {
@@ -4574,7 +4592,14 @@ static int img_dd(int argc, char **argv)
         size = dd.count * in.bsz;
     }

-    qemu_opt_set_number(opts, BLOCK_OPT_SIZE, size, &error_abort);
+    if (dd.flags & C_SEEK && out.offset * out.bsz > INT64_MAX - size) {
+        error_report("Seek too large for '%s'", out.filename);
+        ret = -1;
+        goto out;
+    }
+    seek = out.offset * out.bsz;
+
+    qemu_opt_set_number(opts, BLOCK_OPT_SIZE, size + seek, &error_abort);
     end = size + in_pos;

     ret = bdrv_create(drv, out.filename, opts, &local_err);
@@ -4617,7 +4642,7 @@ static int img_dd(int argc, char **argv)
         }
         in_pos += in_ret;

-        out_ret = blk_pwrite(blk2, out_pos, in.buf, in_ret, 0);
+        out_ret = blk_pwrite(blk2, out_pos + seek, in.buf, in_ret, 0);

         if (out_ret < 0) {
             error_report("error while writing to output image file: %s",
diff --git a/tests/qemu-iotests/160 b/tests/qemu-iotests/160
index 48380a3aafc..0096911e75e 100755
--- a/tests/qemu-iotests/160
+++ b/tests/qemu-iotests/160
@@ -1,6 +1,6 @@
 #! /bin/bash
 #
-# qemu-img dd test for the skip option
+# qemu-img dd test for the skip/seek option
 #
 # Copyright (C) 2016 Reda Sallahi
 #
@@ -41,10 +41,11 @@ _supported_fmt raw
 _supported_proto file
 _supported_os Linux

-TEST_SKIP_BLOCKS="1 2 30 30K"
+TEST_SKIP_BLOCKS="0 2 30 30K"

 for skip in $TEST_SKIP_BLOCKS; do
   for count in '' 'count=1 '; do
+   for seek in $TEST_SKIP_BLOCKS; do
     echo
     echo "== Creating image =="

@@ -54,18 +55,19 @@ for skip in $TEST_SKIP_BLOCKS; do
     $QEMU_IO -c "write -P 0xa 24 512k" "$TEST_IMG" | _filter_qemu_io

     echo
-    echo "== Converting the image with dd with ${count}skip=$skip =="
+    echo "== Converting the image with dd with ${count}skip=$skip seek=$seek =="

-    $QEMU_IMG dd if="$TEST_IMG" of="$TEST_IMG.out" $count skip="$skip" -O "$IMGFMT" \
+    $QEMU_IMG dd if="$TEST_IMG" of="$TEST_IMG.out" $count skip="$skip" seek="$seek" -O "$IMGFMT" \
         2> /dev/null
     TEST_IMG="$TEST_IMG.out" _check_test_img
-    dd if="$TEST_IMG" of="$TEST_IMG.out.dd" $count skip="$skip" status=none
+    dd if="$TEST_IMG" of="$TEST_IMG.out.dd" $count skip="$skip" seek="$seek" status=none

     echo
     echo "== Compare the images with qemu-img compare =="

     $QEMU_IMG compare "$TEST_IMG.out.dd" "$TEST_IMG.out"
     rm "$TEST_IMG.out.dd"
+   done
   done
 done

diff --git a/tests/qemu-iotests/160.out b/tests/qemu-iotests/160.out
index 6147a8493d6..b93ecad05cf 100644
--- a/tests/qemu-iotests/160.out
+++ b/tests/qemu-iotests/160.out
@@ -6,7 +6,7 @@ No errors were found on the image.
 wrote 524288/524288 bytes at offset 24
 512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

-== Converting the image with dd with skip=1 ==
+== Converting the image with dd with skip=0 seek=0 ==
 No errors were found on the image.

 == Compare the images with qemu-img compare ==
@@ -18,7 +18,7 @@ No errors were found on the image.
 wrote 524288/524288 bytes at offset 24
 512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

-== Converting the image with dd with count=1 skip=1 ==
+== Converting the image with dd with skip=0 seek=2 ==
 No errors were found on the image.

 == Compare the images with qemu-img compare ==
@@ -30,7 +30,7 @@ No errors were found on the image.
 wrote 524288/524288 bytes at offset 24
 512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

-== Converting the image with dd with skip=2 ==
+== Converting the image with dd with skip=0 seek=30 ==
 No errors were found on the image.

 == Compare the images with qemu-img compare ==
@@ -42,7 +42,7 @@ No errors were found on the image.
 wrote 524288/524288 bytes at offset 24
 512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

-== Converting the image with dd with count=1 skip=2 ==
+== Converting the image with dd with skip=0 seek=30K ==
 No errors were found on the image.

 == Compare the images with qemu-img compare ==
@@ -54,7 +54,7 @@ No errors were found on the image.
 wrote 524288/524288 bytes at offset 24
 512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

-== Converting the image with dd with skip=30 ==
+== Converting the image with dd with count=1 skip=0 seek=0 ==
 No errors were found on the image.

 == Compare the images with qemu-img compare ==
@@ -66,7 +66,7 @@ No errors were found on the image.
 wrote 524288/524288 bytes at offset 24
 512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

-== Converting the image with dd with count=1 skip=30 ==
+== Converting the image with dd with count=1 skip=0 seek=2 ==
 No errors were found on the image.

 == Compare the images with qemu-img compare ==
@@ -78,7 +78,7 @@ No errors were found on the image.
 wrote 524288/524288 bytes at offset 24
 512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

-== Converting the image with dd with skip=30K ==
+== Converting the image with dd with count=1 skip=0 seek=30 ==
 No errors were found on the image.

 == Compare the images with qemu-img compare ==
@@ -90,7 +90,295 @@ No errors were found on the image.
 wrote 524288/524288 bytes at offset 24
 512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

-== Converting the image with dd with count=1 skip=30K ==
+== Converting the image with dd with count=1 skip=0 seek=30K ==
+No errors were found on the image.
+
+== Compare the images with qemu-img compare ==
+Images are identical.
+
+== Creating image ==
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576
+No errors were found on the image.
+wrote 524288/524288 bytes at offset 24
+512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+
+== Converting the image with dd with skip=2 seek=0 ==
+No errors were found on the image.
+
+== Compare the images with qemu-img compare ==
+Images are identical.
+
+== Creating image ==
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576
+No errors were found on the image.
+wrote 524288/524288 bytes at offset 24
+512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+
+== Converting the image with dd with skip=2 seek=2 ==
+No errors were found on the image.
+
+== Compare the images with qemu-img compare ==
+Images are identical.
+
+== Creating image ==
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576
+No errors were found on the image.
+wrote 524288/524288 bytes at offset 24
+512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+
+== Converting the image with dd with skip=2 seek=30 ==
+No errors were found on the image.
+
+== Compare the images with qemu-img compare ==
+Images are identical.
+
+== Creating image ==
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576
+No errors were found on the image.
+wrote 524288/524288 bytes at offset 24
+512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+
+== Converting the image with dd with skip=2 seek=30K ==
+No errors were found on the image.
+
+== Compare the images with qemu-img compare ==
+Images are identical.
+
+== Creating image ==
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576
+No errors were found on the image.
+wrote 524288/524288 bytes at offset 24
+512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+
+== Converting the image with dd with count=1 skip=2 seek=0 ==
+No errors were found on the image.
+
+== Compare the images with qemu-img compare ==
+Images are identical.
+
+== Creating image ==
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576
+No errors were found on the image.
+wrote 524288/524288 bytes at offset 24
+512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+
+== Converting the image with dd with count=1 skip=2 seek=2 ==
+No errors were found on the image.
+
+== Compare the images with qemu-img compare ==
+Images are identical.
+
+== Creating image ==
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576
+No errors were found on the image.
+wrote 524288/524288 bytes at offset 24
+512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+
+== Converting the image with dd with count=1 skip=2 seek=30 ==
+No errors were found on the image.
+
+== Compare the images with qemu-img compare ==
+Images are identical.
+
+== Creating image ==
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576
+No errors were found on the image.
+wrote 524288/524288 bytes at offset 24
+512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+
+== Converting the image with dd with count=1 skip=2 seek=30K ==
+No errors were found on the image.
+
+== Compare the images with qemu-img compare ==
+Images are identical.
+
+== Creating image ==
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576
+No errors were found on the image.
+wrote 524288/524288 bytes at offset 24
+512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+
+== Converting the image with dd with skip=30 seek=0 ==
+No errors were found on the image.
+
+== Compare the images with qemu-img compare ==
+Images are identical.
+
+== Creating image ==
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576
+No errors were found on the image.
+wrote 524288/524288 bytes at offset 24
+512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+
+== Converting the image with dd with skip=30 seek=2 ==
+No errors were found on the image.
+
+== Compare the images with qemu-img compare ==
+Images are identical.
+
+== Creating image ==
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576
+No errors were found on the image.
+wrote 524288/524288 bytes at offset 24
+512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+
+== Converting the image with dd with skip=30 seek=30 ==
+No errors were found on the image.
+
+== Compare the images with qemu-img compare ==
+Images are identical.
+
+== Creating image ==
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576
+No errors were found on the image.
+wrote 524288/524288 bytes at offset 24
+512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+
+== Converting the image with dd with skip=30 seek=30K ==
+No errors were found on the image.
+
+== Compare the images with qemu-img compare ==
+Images are identical.
+
+== Creating image ==
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576
+No errors were found on the image.
+wrote 524288/524288 bytes at offset 24
+512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+
+== Converting the image with dd with count=1 skip=30 seek=0 ==
+No errors were found on the image.
+
+== Compare the images with qemu-img compare ==
+Images are identical.
+
+== Creating image ==
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576
+No errors were found on the image.
+wrote 524288/524288 bytes at offset 24
+512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+
+== Converting the image with dd with count=1 skip=30 seek=2 ==
+No errors were found on the image.
+
+== Compare the images with qemu-img compare ==
+Images are identical.
+
+== Creating image ==
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576
+No errors were found on the image.
+wrote 524288/524288 bytes at offset 24
+512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+
+== Converting the image with dd with count=1 skip=30 seek=30 ==
+No errors were found on the image.
+
+== Compare the images with qemu-img compare ==
+Images are identical.
+
+== Creating image ==
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576
+No errors were found on the image.
+wrote 524288/524288 bytes at offset 24
+512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+
+== Converting the image with dd with count=1 skip=30 seek=30K ==
+No errors were found on the image.
+
+== Compare the images with qemu-img compare ==
+Images are identical.
+
+== Creating image ==
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576
+No errors were found on the image.
+wrote 524288/524288 bytes at offset 24
+512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+
+== Converting the image with dd with skip=30K seek=0 ==
+No errors were found on the image.
+
+== Compare the images with qemu-img compare ==
+Images are identical.
+
+== Creating image ==
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576
+No errors were found on the image.
+wrote 524288/524288 bytes at offset 24
+512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+
+== Converting the image with dd with skip=30K seek=2 ==
+No errors were found on the image.
+
+== Compare the images with qemu-img compare ==
+Images are identical.
+
+== Creating image ==
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576
+No errors were found on the image.
+wrote 524288/524288 bytes at offset 24
+512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+
+== Converting the image with dd with skip=30K seek=30 ==
+No errors were found on the image.
+
+== Compare the images with qemu-img compare ==
+Images are identical.
+
+== Creating image ==
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576
+No errors were found on the image.
+wrote 524288/524288 bytes at offset 24
+512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+
+== Converting the image with dd with skip=30K seek=30K ==
+No errors were found on the image.
+
+== Compare the images with qemu-img compare ==
+Images are identical.
+
+== Creating image ==
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576
+No errors were found on the image.
+wrote 524288/524288 bytes at offset 24
+512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+
+== Converting the image with dd with count=1 skip=30K seek=0 ==
+No errors were found on the image.
+
+== Compare the images with qemu-img compare ==
+Images are identical.
+
+== Creating image ==
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576
+No errors were found on the image.
+wrote 524288/524288 bytes at offset 24
+512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+
+== Converting the image with dd with count=1 skip=30K seek=2 ==
+No errors were found on the image.
+
+== Compare the images with qemu-img compare ==
+Images are identical.
+
+== Creating image ==
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576
+No errors were found on the image.
+wrote 524288/524288 bytes at offset 24
+512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+
+== Converting the image with dd with count=1 skip=30K seek=30 ==
+No errors were found on the image.
+
+== Compare the images with qemu-img compare ==
+Images are identical.
+
+== Creating image ==
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576
+No errors were found on the image.
+wrote 524288/524288 bytes at offset 24
+512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+
+== Converting the image with dd with count=1 skip=30K seek=30K ==
 No errors were found on the image.

 == Compare the images with qemu-img compare ==
-- 
2.14.4

Re: [Qemu-devel] [PATCH 2/2] qemu-img: Add dd seek= option

[Max Reitz]

[-- Attachment #1: Type: text/plain, Size: 3191 bytes --]

On 2018-08-15 04:56, Eric Blake wrote:
> For feature parity with dd, we want to be able to specify
> the offset within the output file, just as we can specify
> the offset for the input (in particular, this makes copying
> a subset range of guest-visible bytes from one file to
> another much easier).

In my opinion, we do not want feature parity with dd.  What we do want
is feature parity with convert.

> The code style for 'qemu-img dd' was pretty hard to read;
> unfortunately this patch focuses only on adding the new
> feature in the existing style rather than trying to improve
> the overall flow, other than switching octal constants to
> hex.  Oh well.

No, the real issue is that dd is still not implemented just as a
frontend to convert.  Which it should be.  I'm not sure dd was a very
good idea from the start, and now it should ideally be a frontend to
convert.

(My full opinion on the matter: dd has a horrible interface.  I don't
quite see why we replicated that inside qemu-img.  Also, if you want to
use dd, why not use qemu-nbd + Linux nbd device + real dd?)

((That gave me a good idea.  Actually, it's probably not such a good
idea, but I guess I'll do it in my spare time anyway.  A qemu-img fuse
might be nice which represents an image as a raw image at some mount
point.  Benefits over qemu-nbd: (1) You don't need root, (2) you don't
need to type modprobe nbd.))

> Also, switch the test to use an offset of 0 instead of 1,
> to test skip= and seek= on their own; as it is, this is
> effectively quadrupling the test runtime, which starts
> to make this test borderline on whether it should still
> belong to './check -g quick'.  And I didn't bother to
> reindent the test shell code for the new nested loop.

In my opinion, it should no longer belong to quick.  It takes 8 s on my
tmpfs.  My border is somewhere around 2 or 3; and I haven't yet decided
whether that's on tmpfs or SSD.

> Signed-off-by: Eric Blake <eblake@redhat.com>
> ---
>  qemu-img.c                 |  41 ++++--
>  tests/qemu-iotests/160     |  12 +-
>  tests/qemu-iotests/160.out | 304 +++++++++++++++++++++++++++++++++++++++++++--
>  3 files changed, 336 insertions(+), 21 deletions(-)
> 
> diff --git a/qemu-img.c b/qemu-img.c
> index d72f0f0ec94..ee01a18f331 100644
> --- a/qemu-img.c
> +++ b/qemu-img.c

[...]

> @@ -4574,7 +4592,14 @@ static int img_dd(int argc, char **argv)
>          size = dd.count * in.bsz;
>      }
> 
> -    qemu_opt_set_number(opts, BLOCK_OPT_SIZE, size, &error_abort);
> +    if (dd.flags & C_SEEK && out.offset * out.bsz > INT64_MAX - size) {

What about overflows in out.offset * out.bsz?

> +        error_report("Seek too large for '%s'", out.filename);
> +        ret = -1;
> +        goto out;

Real dd doesn't seem to error out (it just reports an error).  I don't
know whether that makes any difference, though.

The test looks good to me.

Max

> +    }
> +    seek = out.offset * out.bsz;
> +
> +    qemu_opt_set_number(opts, BLOCK_OPT_SIZE, size + seek, &error_abort);
>      end = size + in_pos;
> 
>      ret = bdrv_create(drv, out.filename, opts, &local_err);


[-- Attachment #2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 488 bytes --]

Re: [Qemu-devel] [PATCH 2/2] qemu-img: Add dd seek= option

[Eric Blake]

On 08/15/2018 09:20 PM, Max Reitz wrote:
> On 2018-08-15 04:56, Eric Blake wrote:
>> For feature parity with dd, we want to be able to specify
>> the offset within the output file, just as we can specify
>> the offset for the input (in particular, this makes copying
>> a subset range of guest-visible bytes from one file to
>> another much easier).
> 
> In my opinion, we do not want feature parity with dd.  What we do want
> is feature parity with convert.

Well, convert is lacking a way to specify a subset of one file to move 
to a (possibly different) subset of the other.  I'm fine if we want to 
enhance convert to do the things that right now require a dd-alike 
interface (namely, limiting the copying to less than the full file, and 
choosing the offset at which to start [before this patch] or write to 
[with this patch]).

If convert were more powerful, I'd be fine dropping 'qemu-img dd' after 
a proper deprecation period.

> 
>> The code style for 'qemu-img dd' was pretty hard to read;
>> unfortunately this patch focuses only on adding the new
>> feature in the existing style rather than trying to improve
>> the overall flow, other than switching octal constants to
>> hex.  Oh well.
> 
> No, the real issue is that dd is still not implemented just as a
> frontend to convert.  Which it should be.  I'm not sure dd was a very
> good idea from the start, and now it should ideally be a frontend to
> convert.
> 
> (My full opinion on the matter: dd has a horrible interface.  I don't
> quite see why we replicated that inside qemu-img.  Also, if you want to
> use dd, why not use qemu-nbd + Linux nbd device + real dd?)

Because of performance: qemu-nbd + Linux nbd device + real dd is one 
more layer of data copying (each write() from dd goes to kernel, then is 
sent to qemu-nbd in userspace as a socket message before being sent back 
to the kernel to actually write() to the final destination) compared to 
just doing it all in one process (write() lands in the final destination 
with no further user space bouncing).  And because the additional steps 
to set it up are awkward (see my other email where I rant about losing 
the better part of today to realizing that 'dd ...; qemu-nbd -d 
/dev/nbd1' loses data if you omit conv=fdatasync).

> 
> ((That gave me a good idea.  Actually, it's probably not such a good
> idea, but I guess I'll do it in my spare time anyway.  A qemu-img fuse
> might be nice which represents an image as a raw image at some mount
> point.  Benefits over qemu-nbd: (1) You don't need root, (2) you don't
> need to type modprobe nbd.))

So the kernel->userspace translation would be happening via the FUSE 
interface instead of the NBD interface.  Data still bounces around just 
as much, but it might be a fun project.  Does fuse behave well when 
serving exactly one file at the mountpoint, rather than the more typical 
file system rooted in a directory?  NBD at least has the benefit of 
claiming to be a block device all along, rather than complicating the 
user interface with POSIX file system rules (which you'll be bending, 
because you are serving exactly one file instead of a system).

> 
>> Also, switch the test to use an offset of 0 instead of 1,
>> to test skip= and seek= on their own; as it is, this is
>> effectively quadrupling the test runtime, which starts
>> to make this test borderline on whether it should still
>> belong to './check -g quick'.  And I didn't bother to
>> reindent the test shell code for the new nested loop.
> 
> In my opinion, it should no longer belong to quick.  It takes 8 s on my
> tmpfs.  My border is somewhere around 2 or 3; and I haven't yet decided
> whether that's on tmpfs or SSD.

I took 4 iterations pre-patch, to 8 iterations after patch 1, to 32 
iterations with this patch; my observed times went from 1s to 2s to 7s 
on SSD ext4. Yeah, for v2, I'll drop it from quick.

>> @@ -4574,7 +4592,14 @@ static int img_dd(int argc, char **argv)
>>           size = dd.count * in.bsz;
>>       }
>>
>> -    qemu_opt_set_number(opts, BLOCK_OPT_SIZE, size, &error_abort);
>> +    if (dd.flags & C_SEEK && out.offset * out.bsz > INT64_MAX - size) {
> 
> What about overflows in out.offset * out.bsz?

I've had enough of my eyes bleeding on all the code repeatedly scaling 
things. For v2, I'm strongly considering a cleanup patch that reads all 
input, then scales all values into bytes, and THEN performs any 
additional math in a single unit, just so the additions become easier to 
reason about.

> 
>> +        error_report("Seek too large for '%s'", out.filename);
>> +        ret = -1;
>> +        goto out;
> 
> Real dd doesn't seem to error out (it just reports an error).  I don't
> know whether that makes any difference, though.

But where does the data get written if you can't actually seek that far 
into the file?

> 
> The test looks good to me.

Other than my creative indentation levels ;)

> 
> Max
> 
>> +    }
>> +    seek = out.offset * out.bsz;
>> +
>> +    qemu_opt_set_number(opts, BLOCK_OPT_SIZE, size + seek, &error_abort);
>>       end = size + in_pos;
>>
>>       ret = bdrv_create(drv, out.filename, opts, &local_err);
> 

-- 
Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3266
Virtualization:  qemu.org | libvirt.org

Re: [Qemu-devel] [PATCH 2/2] qemu-img: Add dd seek= option

[Eric Blake]

On 08/15/2018 09:39 PM, Eric Blake wrote:

>> (My full opinion on the matter: dd has a horrible interface.  I don't
>> quite see why we replicated that inside qemu-img.  Also, if you want to
>> use dd, why not use qemu-nbd + Linux nbd device + real dd?)
> 
> Because of performance: qemu-nbd + Linux nbd device + real dd is one 
> more layer of data copying (each write() from dd goes to kernel, then is 
> sent to qemu-nbd in userspace as a socket message before being sent back 
> to the kernel to actually write() to the final destination) compared to 
> just doing it all in one process (write() lands in the final destination 
> with no further user space bouncing).  And because the additional steps 
> to set it up are awkward (see my other email where I rant about losing 
> the better part of today to realizing that 'dd ...; qemu-nbd -d 
> /dev/nbd1' loses data if you omit conv=fdatasync).

Oh, and because the kernel NBD module still doesn't know how to do 
sparse writes or expose the location of holes. In the kernel source, see 
drivers/block/nbd.c and weep at how far it lags behind qemu-nbd features 
that at least 'qemu-img convert' can take advantage of, but aren't 
present via /dev/nbd*

-- 
Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3266
Virtualization:  qemu.org | libvirt.org

Re: [Qemu-devel] [PATCH 2/2] qemu-img: Add dd seek= option

[Max Reitz]

[-- Attachment #1: Type: text/plain, Size: 6416 bytes --]

On 2018-08-16 04:39, Eric Blake wrote:
> On 08/15/2018 09:20 PM, Max Reitz wrote:
>> On 2018-08-15 04:56, Eric Blake wrote:
>>> For feature parity with dd, we want to be able to specify
>>> the offset within the output file, just as we can specify
>>> the offset for the input (in particular, this makes copying
>>> a subset range of guest-visible bytes from one file to
>>> another much easier).
>>
>> In my opinion, we do not want feature parity with dd.  What we do want
>> is feature parity with convert.
> 
> Well, convert is lacking a way to specify a subset of one file to move
> to a (possibly different) subset of the other.  I'm fine if we want to
> enhance convert to do the things that right now require a dd-alike
> interface (namely, limiting the copying to less than the full file, and
> choosing the offset at which to start [before this patch] or write to
> [with this patch]).

Yes, I would want that.

> If convert were more powerful, I'd be fine dropping 'qemu-img dd' after
> a proper deprecation period.

Technically it has those features already, with the raw block driver's
offset and size parameters.

>>> The code style for 'qemu-img dd' was pretty hard to read;
>>> unfortunately this patch focuses only on adding the new
>>> feature in the existing style rather than trying to improve
>>> the overall flow, other than switching octal constants to
>>> hex.  Oh well.
>>
>> No, the real issue is that dd is still not implemented just as a
>> frontend to convert.  Which it should be.  I'm not sure dd was a very
>> good idea from the start, and now it should ideally be a frontend to
>> convert.
>>
>> (My full opinion on the matter: dd has a horrible interface.  I don't
>> quite see why we replicated that inside qemu-img.  Also, if you want to
>> use dd, why not use qemu-nbd + Linux nbd device + real dd?)
> 
> Because of performance: qemu-nbd + Linux nbd device + real dd is one
> more layer of data copying (each write() from dd goes to kernel, then is
> sent to qemu-nbd in userspace as a socket message before being sent back
> to the kernel to actually write() to the final destination) compared to
> just doing it all in one process (write() lands in the final destination
> with no further user space bouncing).  And because the additional steps
> to set it up are awkward (see my other email where I rant about losing
> the better part of today to realizing that 'dd ...; qemu-nbd -d
> /dev/nbd1' loses data if you omit conv=fdatasync).

I can see the sync problems, but is the performance really that much worse?

>> ((That gave me a good idea.  Actually, it's probably not such a good
>> idea, but I guess I'll do it in my spare time anyway.  A qemu-img fuse
>> might be nice which represents an image as a raw image at some mount
>> point.  Benefits over qemu-nbd: (1) You don't need root, (2) you don't
>> need to type modprobe nbd.))
> 
> So the kernel->userspace translation would be happening via the FUSE
> interface instead of the NBD interface.  Data still bounces around just
> as much, but it might be a fun project.  Does fuse behave well when
> serving exactly one file at the mountpoint, rather than the more typical
> file system rooted in a directory?  NBD at least has the benefit of
> claiming to be a block device all along, rather than complicating the
> user interface with POSIX file system rules (which you'll be bending,
> because you are serving exactly one file instead of a system).

Well, but I can just pretend my FUSE file is a block device, no?

Also, I just discovered something really interesting: FUSE allows you to
specify a single file as a mountpoint.

And you know what?  You can open the original file before you replace it
by the FUSE "filesystem".

So my fun interface is going to looks like this:

$ qemu-img fuse foo.qcow2

And then your foo.qcow2 is a raw image until the next "fusermount -u
foo.qcow2"!  Isn't that fun?

>>> Also, switch the test to use an offset of 0 instead of 1,
>>> to test skip= and seek= on their own; as it is, this is
>>> effectively quadrupling the test runtime, which starts
>>> to make this test borderline on whether it should still
>>> belong to './check -g quick'.  And I didn't bother to
>>> reindent the test shell code for the new nested loop.
>>
>> In my opinion, it should no longer belong to quick.  It takes 8 s on my
>> tmpfs.  My border is somewhere around 2 or 3; and I haven't yet decided
>> whether that's on tmpfs or SSD.
> 
> I took 4 iterations pre-patch, to 8 iterations after patch 1, to 32
> iterations with this patch; my observed times went from 1s to 2s to 7s
> on SSD ext4. Yeah, for v2, I'll drop it from quick.

Thanks!

>>> @@ -4574,7 +4592,14 @@ static int img_dd(int argc, char **argv)
>>>           size = dd.count * in.bsz;
>>>       }
>>>
>>> -    qemu_opt_set_number(opts, BLOCK_OPT_SIZE, size, &error_abort);
>>> +    if (dd.flags & C_SEEK && out.offset * out.bsz > INT64_MAX - size) {
>>
>> What about overflows in out.offset * out.bsz?
> 
> I've had enough of my eyes bleeding on all the code repeatedly scaling
> things. For v2, I'm strongly considering a cleanup patch that reads all
> input, then scales all values into bytes, and THEN performs any
> additional math in a single unit, just so the additions become easier to
> reason about.

Haha.  I won't object.

>>> +        error_report("Seek too large for '%s'", out.filename);
>>> +        ret = -1;
>>> +        goto out;
>>
>> Real dd doesn't seem to error out (it just reports an error).  I don't
>> know whether that makes any difference, though.
> 
> But where does the data get written if you can't actually seek that far
> into the file?

Well, the stats printed say it doesn't write anything.  So that's why I
don't know whether it makes any difference.

>>
>> The test looks good to me.
> 
> Other than my creative indentation levels ;)

I like them.

I mean, usually I just don't indent anything when adding to a test case.
 I do it like this:


Original code:

...
qemu-img (something) $TEST_IMG
...


Post-my-patch:

for opt in x y; do
...
qemu-img (something) $opt $TEST_IMG
...
done


And I know I'm not the only one.  So, yeah, I liked your more creative
solution.

Max


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Re: [Qemu-devel] [PATCH 2/2] qemu-img: Add dd seek= option

[Eric Blake]

On 08/15/2018 09:49 PM, Max Reitz wrote:

>>> In my opinion, we do not want feature parity with dd.  What we do want
>>> is feature parity with convert.
>>
>> Well, convert is lacking a way to specify a subset of one file to move
>> to a (possibly different) subset of the other.  I'm fine if we want to
>> enhance convert to do the things that right now require a dd-alike
>> interface (namely, limiting the copying to less than the full file, and
>> choosing the offset at which to start [before this patch] or write to
>> [with this patch]).
> 
> Yes, I would want that.
> 
>> If convert were more powerful, I'd be fine dropping 'qemu-img dd' after
>> a proper deprecation period.
> 
> Technically it has those features already, with the raw block driver's
> offset and size parameters.

Perhaps so, but it will be an interesting exercise in rewriting the 
shorthand nbd://host:port/export into the proper longhand driver syntax.


>>
>> Because of performance: qemu-nbd + Linux nbd device + real dd is one
>> more layer of data copying (each write() from dd goes to kernel, then is
>> sent to qemu-nbd in userspace as a socket message before being sent back
>> to the kernel to actually write() to the final destination) compared to
>> just doing it all in one process (write() lands in the final destination
>> with no further user space bouncing).  And because the additional steps
>> to set it up are awkward (see my other email where I rant about losing
>> the better part of today to realizing that 'dd ...; qemu-nbd -d
>> /dev/nbd1' loses data if you omit conv=fdatasync).
> 
> I can see the sync problems, but is the performance really that much worse?

When you don't have sparse file support, reading or writing large blocks 
of zeroes really is worse over /dev/nbd* than over a server/client pair 
that know how to do it efficiently.  But for non-sparse data, I don't 
know if a benchmark would be able to consistently note a difference 
(might be a fun benchmark for someone to try, but not high on my current 
to-do list).

-- 
Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3266
Virtualization:  qemu.org | libvirt.org

Re: [Qemu-devel] [PATCH 2/2] qemu-img: Add dd seek= option

[Max Reitz]

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On 2018-08-16 04:57, Eric Blake wrote:
> On 08/15/2018 09:49 PM, Max Reitz wrote:
> 
>>>> In my opinion, we do not want feature parity with dd.  What we do want
>>>> is feature parity with convert.
>>>
>>> Well, convert is lacking a way to specify a subset of one file to move
>>> to a (possibly different) subset of the other.  I'm fine if we want to
>>> enhance convert to do the things that right now require a dd-alike
>>> interface (namely, limiting the copying to less than the full file, and
>>> choosing the offset at which to start [before this patch] or write to
>>> [with this patch]).
>>
>> Yes, I would want that.
>>
>>> If convert were more powerful, I'd be fine dropping 'qemu-img dd' after
>>> a proper deprecation period.
>>
>> Technically it has those features already, with the raw block driver's
>> offset and size parameters.
> 
> Perhaps so, but it will be an interesting exercise in rewriting the
> shorthand nbd://host:port/export into the proper longhand driver syntax.

Don't dare me! :-)

>>> Because of performance: qemu-nbd + Linux nbd device + real dd is one
>>> more layer of data copying (each write() from dd goes to kernel, then is
>>> sent to qemu-nbd in userspace as a socket message before being sent back
>>> to the kernel to actually write() to the final destination) compared to
>>> just doing it all in one process (write() lands in the final destination
>>> with no further user space bouncing).  And because the additional steps
>>> to set it up are awkward (see my other email where I rant about losing
>>> the better part of today to realizing that 'dd ...; qemu-nbd -d
>>> /dev/nbd1' loses data if you omit conv=fdatasync).
>>
>> I can see the sync problems, but is the performance really that much
>> worse?
> 
> When you don't have sparse file support, reading or writing large blocks
> of zeroes really is worse over /dev/nbd* than over a server/client pair
> that know how to do it efficiently.  But for non-sparse data, I don't
> know if a benchmark would be able to consistently note a difference
> (might be a fun benchmark for someone to try, but not high on my current
> to-do list).

Hm.  Yeah.  Well, for me, it remains that it would be better to have a
good way of exposing image contents to all of the rest of the system and
all of the nice tools there already are instead of re-implementing them
in qemu.

Max


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Re: [Qemu-devel] [PATCH 2/2] qemu-img: Add dd seek= option

[Kevin Wolf]

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Am 16.08.2018 um 04:49 hat Max Reitz geschrieben:
> On 2018-08-16 04:39, Eric Blake wrote:
> > If convert were more powerful, I'd be fine dropping 'qemu-img dd' after
> > a proper deprecation period.
> 
> Technically it has those features already, with the raw block driver's
> offset and size parameters.

In a way, yes. It requires you to precreate the target image, though,
because --target-image-opts requires -n.

We'll probably want to fix something in this area anyway because in the
common case, you already need those options to even precreate the image,
and qemu-img create doesn't support open options for the protocol layer
either (unlike blockdev-create).

> >> ((That gave me a good idea.  Actually, it's probably not such a good
> >> idea, but I guess I'll do it in my spare time anyway.  A qemu-img fuse
> >> might be nice which represents an image as a raw image at some mount
> >> point.  Benefits over qemu-nbd: (1) You don't need root, (2) you don't
> >> need to type modprobe nbd.))
> > 
> > So the kernel->userspace translation would be happening via the FUSE
> > interface instead of the NBD interface.  Data still bounces around just
> > as much, but it might be a fun project.  Does fuse behave well when
> > serving exactly one file at the mountpoint, rather than the more typical
> > file system rooted in a directory?  NBD at least has the benefit of
> > claiming to be a block device all along, rather than complicating the
> > user interface with POSIX file system rules (which you'll be bending,
> > because you are serving exactly one file instead of a system).

To make it more real, you could expose a snapshots/ subdirectory. Or
maybe better not.

> Well, but I can just pretend my FUSE file is a block device, no?
> 
> Also, I just discovered something really interesting: FUSE allows you to
> specify a single file as a mountpoint.
> 
> And you know what?  You can open the original file before you replace it
> by the FUSE "filesystem".
> 
> So my fun interface is going to looks like this:
> 
> $ qemu-img fuse foo.qcow2
> 
> And then your foo.qcow2 is a raw image until the next "fusermount -u
> foo.qcow2"!  Isn't that fun?

Yes, sounds fun. Until you realise that I'd actually like to merge
something like this when it exists. ;-)

For a more serious implementation, maybe it should even be a separate
qemu-fuse rather than a qemu-img subcommand.

Kevin

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Re: [Qemu-devel] [PATCH 2/2] qemu-img: Add dd seek= option

[Max Reitz]

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On 2018-08-16 09:15, Kevin Wolf wrote:
> Am 16.08.2018 um 04:49 hat Max Reitz geschrieben:
>> On 2018-08-16 04:39, Eric Blake wrote:
>>> If convert were more powerful, I'd be fine dropping 'qemu-img dd' after
>>> a proper deprecation period.
>>
>> Technically it has those features already, with the raw block driver's
>> offset and size parameters.
> 
> In a way, yes. It requires you to precreate the target image, though,
> because --target-image-opts requires -n.
> 
> We'll probably want to fix something in this area anyway because in the
> common case, you already need those options to even precreate the image,
> and qemu-img create doesn't support open options for the protocol layer
> either (unlike blockdev-create).
> 
>>>> ((That gave me a good idea.  Actually, it's probably not such a good
>>>> idea, but I guess I'll do it in my spare time anyway.  A qemu-img fuse
>>>> might be nice which represents an image as a raw image at some mount
>>>> point.  Benefits over qemu-nbd: (1) You don't need root, (2) you don't
>>>> need to type modprobe nbd.))
>>>
>>> So the kernel->userspace translation would be happening via the FUSE
>>> interface instead of the NBD interface.  Data still bounces around just
>>> as much, but it might be a fun project.  Does fuse behave well when
>>> serving exactly one file at the mountpoint, rather than the more typical
>>> file system rooted in a directory?  NBD at least has the benefit of
>>> claiming to be a block device all along, rather than complicating the
>>> user interface with POSIX file system rules (which you'll be bending,
>>> because you are serving exactly one file instead of a system).
> 
> To make it more real, you could expose a snapshots/ subdirectory. Or
> maybe better not.
> 
>> Well, but I can just pretend my FUSE file is a block device, no?
>>
>> Also, I just discovered something really interesting: FUSE allows you to
>> specify a single file as a mountpoint.
>>
>> And you know what?  You can open the original file before you replace it
>> by the FUSE "filesystem".
>>
>> So my fun interface is going to looks like this:
>>
>> $ qemu-img fuse foo.qcow2
>>
>> And then your foo.qcow2 is a raw image until the next "fusermount -u
>> foo.qcow2"!  Isn't that fun?
> 
> Yes, sounds fun. Until you realise that I'd actually like to merge
> something like this when it exists. ;-)

Well, for reference:

https://git.xanclic.moe/XanClic/qemu/commits/branch/qemu-img-fuse

(The main issue now is that you don't see FUSE error messages,
because...  Well.  FUSE likes to fork the daemon process itself, but for
some reason that doesn't really work with qemu.  I don't really want to
investigate that, instead I rather like to declare it broken and launch
FUSE in foreground mode, and then do the forking ourselves (like
qemu-nbd does).  But then we lose all error output from FUSE, because we
have to close stderr before we get to the main loop...

(I suppose I can just look into what fuse_main() does exactly and
replicate that.  The doc says using fuse_main() is just lazy anyway. O:-P))

> For a more serious implementation, maybe it should even be a separate
> qemu-fuse rather than a qemu-img subcommand.

True.  It doesn't really fit well into qemu-img.

(To me, qemu-img is about exposing block layer features without the user
having to use qemu proper.  Exporting an image over FUSE really is not a
block layer feature.)

Max


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Re: [Qemu-devel] [PATCH 2/2] qemu-img: Add dd seek= option

[Fam Zheng]

On Thu, 08/16 04:20, Max Reitz wrote:
> No, the real issue is that dd is still not implemented just as a
> frontend to convert.  Which it should be.  I'm not sure dd was a very
> good idea from the start, and now it should ideally be a frontend to
> convert.
> 
> (My full opinion on the matter: dd has a horrible interface.  I don't
> quite see why we replicated that inside qemu-img.  Also, if you want to
> use dd, why not use qemu-nbd + Linux nbd device + real dd?)

The intention is that dd is a familiar interface and allows for operating on
portions of images. It is much more convenient than "qemu-nbd + Linux nbd + dd"
and a bit more convenient than "booting a Linux VM, attaching the image as a
virtual disk, then use dd in the guest". More so when writing tests.

Fam

Re: [Qemu-devel] [PATCH 2/2] qemu-img: Add dd seek= option

[Max Reitz]

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On 2018-08-20 04:07, Fam Zheng wrote:
> On Thu, 08/16 04:20, Max Reitz wrote:
>> No, the real issue is that dd is still not implemented just as a
>> frontend to convert.  Which it should be.  I'm not sure dd was a very
>> good idea from the start, and now it should ideally be a frontend to
>> convert.
>>
>> (My full opinion on the matter: dd has a horrible interface.  I don't
>> quite see why we replicated that inside qemu-img.  Also, if you want to
>> use dd, why not use qemu-nbd + Linux nbd device + real dd?)
> 
> The intention is that dd is a familiar interface and allows for operating on
> portions of images. It is much more convenient than "qemu-nbd + Linux nbd + dd"
> and a bit more convenient than "booting a Linux VM, attaching the image as a
> virtual disk, then use dd in the guest". More so when writing tests.

This is my fault, but frankly, since I always get seek and skip mixed
up, whenever I use dd for anything but copying a whole image, I have to
look into the man page anyway, so the advantage over modprobe nbd &&
qemu-nbd -c /dev/nbd0 is gone.

And in my opinion the fact that it is a familiar interface doesn't make
it less of a horrible interface.

My main issue is that it's built right into qemu-img where it shouldn't
be.  We have convert, you can now even access portions of images with
the raw driver, so it really should have been just a script on top.

Max


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Re: [Qemu-devel] [PATCH 0/2] Improve qemu-img dd

[Eric Blake]

On 08/14/2018 09:56 PM, Eric Blake wrote:
> I was trying to test NBD fleecing by copying subsets of one
> file to another, and had the idea to use:
> 
> $ export NBD drive to be fleeced on port 10809
> $ qemu-img create -f qcow2 copy $size
> $ qemu-nbd -f qcow2 -p 10810 copy
> $ qemu-img dd -f raw -O raw if=nbd://localhost:10809 of=nbd://localhost:10810 \
>      skip=$offset seek=$offset count=$((len/cluster)) bs=$cluster
> 
> except that seek= wasn't implemented. And in implementing that,
> I learned that skip= is broken when combined with count=.
> 
> [In the meantime, I had to use:
> 
> $ export NBD drive to be fleeced on port 10809
> $ modprobe nbd
> $ qemu-nbd -c /dev/nbd0 -f raw nbd://localhost:10809
> $ qemu-nbd -c /dev/nbd1 -f qcow2 copy
> $ dd if=/dev/nbd0 of/dev/nbd1 \

Oops, left out one = on that line.

>      skip=$offset seek=$offset count=$((len/cluster)) bs=$cluster

And this needs to be Rather, skip=$((offset/cluster)) 
seek=$((offset/cluster)), unless iflag=skip_bytes oflag=seek_bytes is 
also in use.

What's more, it's essential to use conf=fdatasync when scripting this, 
otherwise, the dd process can end while the data is still in buffers, 
and if 'qemu-nbd -d /dev/nbd1' follows too closely, those buffers are 
lost instead of flushed.  (I lost the better part of a day figuring out 
why things worked when I did it by hand but not when I scripted it, 
until finally figuring out that the final flush is mandatory to avoid 
data loss).

> 
> to get the behavior I needed (basically, create an empty qcow2
> destination file, then plug in the guest-visible data based on
> the subsets of the disk of my choosing, by reading the block
> status/dirty bitmap over NBD).  But bouncing through three
> NBD client/server pairs just so I can use plain 'dd' instead
> of just two pairs with 'qemu-img dd' feels dirty.
> ]
> 
> Eric Blake (2):
>    qemu-img: Fix dd with skip= and count=
>    qemu-img: Add dd seek= option
> 
>   qemu-img.c                 |  76 ++++++----
>   tests/qemu-iotests/160     |  15 +-
>   tests/qemu-iotests/160.out | 344 ++++++++++++++++++++++++++++++++++++++++++++-
>   3 files changed, 397 insertions(+), 38 deletions(-)
> 

-- 
Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3266
Virtualization:  qemu.org | libvirt.org

Re: [Qemu-devel] [PATCH 0/2] Improve qemu-img dd

[Eric Blake]

On 08/14/2018 09:56 PM, Eric Blake wrote:
> I was trying to test NBD fleecing by copying subsets of one
> file to another, and had the idea to use:
> 
> $ export NBD drive to be fleeced on port 10809
> $ qemu-img create -f qcow2 copy $size
> $ qemu-nbd -f qcow2 -p 10810 copy
> $ qemu-img dd -f raw -O raw if=nbd://localhost:10809 of=nbd://localhost:10810 \
>      skip=$offset seek=$offset count=$((len/cluster)) bs=$cluster
> 
> except that seek= wasn't implemented. And in implementing that,
> I learned that skip= is broken when combined with count=.

On the bright side, 'qemu-img dd' appears to properly flush images when 
closing them, even though it does not have a conv= parameter.

> 
> [In the meantime, I had to use:
> 
> $ export NBD drive to be fleeced on port 10809
> $ modprobe nbd
> $ qemu-nbd -c /dev/nbd0 -f raw nbd://localhost:10809
> $ qemu-nbd -c /dev/nbd1 -f qcow2 copy
> $ dd if=/dev/nbd0 of/dev/nbd1 \

Oops, left out one = on that line.

>      skip=$offset seek=$offset count=$((len/cluster)) bs=$cluster

And this needs to be skip=$((offset/cluster)) seek=$((offset/cluster)), 
unless iflag=skip_bytes oflag=seek_bytes is also in use.

What's more, it's essential to use conv=fdatasync when scripting this, 
otherwise, the dd process can end while the data is still in kernel 
buffers, and if 'qemu-nbd -d /dev/nbd1' follows too closely, those 
buffers are lost instead of flushed.

I lost the better part of a day figuring out why things worked when I 
did it by hand but not when I scripted it, until finally figuring out 
that the final flush (or a long sleep before disconnect) is mandatory to 
avoid data loss.  And it did not help that 'qemu-nbd -c' forks parallel 
processes in order to both serve an image over NBD and to connect the 
kernel as client to that private socket, but in such as way that 
--trace=nbd_\* no longer works due to the fd dance performed in setting 
things up, so it's much harder to see what requests the kernel is 
making. Also useful for anyone else trying to debug setups like this: 
'strace -D -o file -f qemu-nbd ...' is essential (without -D, the 
parallel processes don't get set up correctly; and -f is needed to trace 
through the forks).

-- 
Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3266
Virtualization:  qemu.org | libvirt.org

Re: [Qemu-devel] [PATCH 0/2] Improve qemu-img dd

[no-reply]

Hi,

This series failed docker-mingw@fedora build test. Please find the testing commands and
their output below. If you have Docker installed, you can probably reproduce it
locally.

Type: series
Message-id: 20180815025614.53588-1-eblake@redhat.com
Subject: [Qemu-devel] [PATCH 0/2] Improve qemu-img dd

=== TEST SCRIPT BEGIN ===
#!/bin/bash
time make docker-test-mingw@fedora SHOW_ENV=1 J=8
=== TEST SCRIPT END ===

Updating 3c8cf5a9c21ff8782164d1def7f44bd888713384
Switched to a new branch 'test'
e66d307728 qemu-img: Add dd seek= option
cdb68a8e2e qemu-img: Fix dd with skip= and count=

=== OUTPUT BEGIN ===
  BUILD   fedora
make[1]: Entering directory '/var/tmp/patchew-tester-tmp-3unl0b1q/src'
  GEN     /var/tmp/patchew-tester-tmp-3unl0b1q/src/docker-src.2018-08-16-15.38.04.27074/qemu.tar
Cloning into '/var/tmp/patchew-tester-tmp-3unl0b1q/src/docker-src.2018-08-16-15.38.04.27074/qemu.tar.vroot'...
done.
Your branch is up-to-date with 'origin/test'.
Submodule 'dtc' (git://git.qemu-project.org/dtc.git) registered for path 'dtc'
Cloning into '/var/tmp/patchew-tester-tmp-3unl0b1q/src/docker-src.2018-08-16-15.38.04.27074/qemu.tar.vroot/dtc'...
Submodule path 'dtc': checked out 'e54388015af1fb4bf04d0bca99caba1074d9cc42'
Submodule 'ui/keycodemapdb' (git://git.qemu.org/keycodemapdb.git) registered for path 'ui/keycodemapdb'
Cloning into '/var/tmp/patchew-tester-tmp-3unl0b1q/src/docker-src.2018-08-16-15.38.04.27074/qemu.tar.vroot/ui/keycodemapdb'...
Submodule path 'ui/keycodemapdb': checked out '6b3d716e2b6472eb7189d3220552280ef3d832ce'
  COPY    RUNNER
    RUN test-mingw in qemu:fedora 
Packages installed:
SDL2-devel-2.0.8-5.fc28.x86_64
bc-1.07.1-5.fc28.x86_64
bison-3.0.4-9.fc28.x86_64
bluez-libs-devel-5.49-3.fc28.x86_64
brlapi-devel-0.6.7-12.fc28.x86_64
bzip2-1.0.6-26.fc28.x86_64
bzip2-devel-1.0.6-26.fc28.x86_64
ccache-3.4.2-2.fc28.x86_64
clang-6.0.0-5.fc28.x86_64
device-mapper-multipath-devel-0.7.4-2.git07e7bd5.fc28.x86_64
findutils-4.6.0-19.fc28.x86_64
flex-2.6.1-7.fc28.x86_64
gcc-8.1.1-1.fc28.x86_64
gcc-c++-8.1.1-1.fc28.x86_64
gettext-0.19.8.1-14.fc28.x86_64
git-2.17.1-2.fc28.x86_64
glib2-devel-2.56.1-3.fc28.x86_64
glusterfs-api-devel-4.0.2-1.fc28.x86_64
gnutls-devel-3.6.2-1.fc28.x86_64
gtk3-devel-3.22.30-1.fc28.x86_64
hostname-3.20-3.fc28.x86_64
libaio-devel-0.3.110-11.fc28.x86_64
libasan-8.1.1-1.fc28.x86_64
libattr-devel-2.4.47-23.fc28.x86_64
libcap-devel-2.25-9.fc28.x86_64
libcap-ng-devel-0.7.9-1.fc28.x86_64
libcurl-devel-7.59.0-3.fc28.x86_64
libfdt-devel-1.4.6-4.fc28.x86_64
libpng-devel-1.6.34-3.fc28.x86_64
librbd-devel-12.2.5-1.fc28.x86_64
libssh2-devel-1.8.0-7.fc28.x86_64
libubsan-8.1.1-1.fc28.x86_64
libusbx-devel-1.0.21-6.fc28.x86_64
libxml2-devel-2.9.7-4.fc28.x86_64
llvm-6.0.0-11.fc28.x86_64
lzo-devel-2.08-12.fc28.x86_64
make-4.2.1-6.fc28.x86_64
mingw32-SDL2-2.0.5-3.fc27.noarch
mingw32-bzip2-1.0.6-9.fc27.noarch
mingw32-curl-7.57.0-1.fc28.noarch
mingw32-glib2-2.54.1-1.fc28.noarch
mingw32-gmp-6.1.2-2.fc27.noarch
mingw32-gnutls-3.5.13-2.fc27.noarch
mingw32-gtk3-3.22.16-1.fc27.noarch
mingw32-libjpeg-turbo-1.5.1-3.fc27.noarch
mingw32-libpng-1.6.29-2.fc27.noarch
mingw32-libssh2-1.8.0-3.fc27.noarch
mingw32-libtasn1-4.13-1.fc28.noarch
mingw32-nettle-3.3-3.fc27.noarch
mingw32-pixman-0.34.0-3.fc27.noarch
mingw32-pkg-config-0.28-9.fc27.x86_64
mingw64-SDL2-2.0.5-3.fc27.noarch
mingw64-bzip2-1.0.6-9.fc27.noarch
mingw64-curl-7.57.0-1.fc28.noarch
mingw64-glib2-2.54.1-1.fc28.noarch
mingw64-gmp-6.1.2-2.fc27.noarch
mingw64-gnutls-3.5.13-2.fc27.noarch
mingw64-gtk3-3.22.16-1.fc27.noarch
mingw64-libjpeg-turbo-1.5.1-3.fc27.noarch
mingw64-libpng-1.6.29-2.fc27.noarch
mingw64-libssh2-1.8.0-3.fc27.noarch
mingw64-libtasn1-4.13-1.fc28.noarch
mingw64-nettle-3.3-3.fc27.noarch
mingw64-pixman-0.34.0-3.fc27.noarch
mingw64-pkg-config-0.28-9.fc27.x86_64
ncurses-devel-6.1-5.20180224.fc28.x86_64
nettle-devel-3.4-2.fc28.x86_64
nss-devel-3.36.1-1.1.fc28.x86_64
numactl-devel-2.0.11-8.fc28.x86_64
package PyYAML is not installed
package libjpeg-devel is not installed
perl-5.26.2-411.fc28.x86_64
pixman-devel-0.34.0-8.fc28.x86_64
python3-3.6.5-1.fc28.x86_64
snappy-devel-1.1.7-5.fc28.x86_64
sparse-0.5.2-1.fc28.x86_64
spice-server-devel-0.14.0-4.fc28.x86_64
systemtap-sdt-devel-3.2-11.fc28.x86_64
tar-1.30-3.fc28.x86_64
usbredir-devel-0.7.1-7.fc28.x86_64
virglrenderer-devel-0.6.0-4.20170210git76b3da97b.fc28.x86_64
vte3-devel-0.36.5-6.fc28.x86_64
which-2.21-8.fc28.x86_64
xen-devel-4.10.1-3.fc28.x86_64
zlib-devel-1.2.11-8.fc28.x86_64

Environment variables:
TARGET_LIST=
PACKAGES=ccache gettext git tar PyYAML sparse flex bison python3 bzip2 hostname     gcc gcc-c++ llvm clang make perl which bc findutils glib2-devel     libaio-devel pixman-devel zlib-devel libfdt-devel libasan libubsan     bluez-libs-devel brlapi-devel bzip2-devel     device-mapper-multipath-devel glusterfs-api-devel gnutls-devel     gtk3-devel libattr-devel libcap-devel libcap-ng-devel libcurl-devel     libjpeg-devel libpng-devel librbd-devel libssh2-devel libusbx-devel     libxml2-devel lzo-devel ncurses-devel nettle-devel nss-devel     numactl-devel SDL2-devel snappy-devel spice-server-devel     systemtap-sdt-devel usbredir-devel virglrenderer-devel vte3-devel     xen-devel     mingw32-pixman mingw32-glib2 mingw32-gmp mingw32-SDL2 mingw32-pkg-config     mingw32-gtk3 mingw32-gnutls mingw32-nettle mingw32-libtasn1     mingw32-libjpeg-turbo mingw32-libpng mingw32-curl mingw32-libssh2     mingw32-bzip2     mingw64-pixman mingw64-glib2 mingw64-gmp mingw64-SDL2 mingw64-pkg-config     mingw64-gtk3 mingw64-gnutls mingw64-nettle mingw64-libtasn1     mingw64-libjpeg-turbo mingw64-libpng mingw64-curl mingw64-libssh2     mingw64-bzip2
J=8
V=
HOSTNAME=25b0c1660b1c
DEBUG=
SHOW_ENV=1
PWD=/
HOME=/
CCACHE_DIR=/var/tmp/ccache
DISTTAG=f28container
QEMU_CONFIGURE_OPTS=--python=/usr/bin/python3
FGC=f28
TEST_DIR=/tmp/qemu-test
SHLVL=1
FEATURES=mingw clang pyyaml asan dtc
PATH=/usr/lib/ccache:/usr/lib64/ccache:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
MAKEFLAGS= -j8
EXTRA_CONFIGURE_OPTS=
_=/usr/bin/env

Configure options:
--enable-werror --target-list=x86_64-softmmu,aarch64-softmmu --prefix=/tmp/qemu-test/install --python=/usr/bin/python3 --cross-prefix=x86_64-w64-mingw32- --enable-trace-backends=simple --enable-gnutls --enable-nettle --enable-curl --enable-vnc --enable-bzip2 --enable-guest-agent --with-sdlabi=2.0 --with-gtkabi=3.0
Install prefix    /tmp/qemu-test/install
BIOS directory    /tmp/qemu-test/install
firmware path     /tmp/qemu-test/install/share/qemu-firmware
binary directory  /tmp/qemu-test/install
library directory /tmp/qemu-test/install/lib
module directory  /tmp/qemu-test/install/lib
libexec directory /tmp/qemu-test/install/libexec
include directory /tmp/qemu-test/install/include
config directory  /tmp/qemu-test/install
local state directory   queried at runtime
Windows SDK       no
Source path       /tmp/qemu-test/src
GIT binary        git
GIT submodules    
C compiler        x86_64-w64-mingw32-gcc
Host C compiler   cc
C++ compiler      x86_64-w64-mingw32-g++
Objective-C compiler clang
ARFLAGS           rv
CFLAGS            -O2 -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -g 
QEMU_CFLAGS       -I/usr/x86_64-w64-mingw32/sys-root/mingw/include/pixman-1  -I$(SRC_PATH)/dtc/libfdt -Werror -DHAS_LIBSSH2_SFTP_FSYNC -mms-bitfields -I/usr/x86_64-w64-mingw32/sys-root/mingw/include/glib-2.0 -I/usr/x86_64-w64-mingw32/sys-root/mingw/lib/glib-2.0/include -I/usr/x86_64-w64-mingw32/sys-root/mingw/include  -m64 -mcx16 -mthreads -D__USE_MINGW_ANSI_STDIO=1 -DWIN32_LEAN_AND_MEAN -DWINVER=0x501 -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -Wstrict-prototypes -Wredundant-decls -Wall -Wundef -Wwrite-strings -Wmissing-prototypes -fno-strict-aliasing -fno-common -fwrapv  -Wexpansion-to-defined -Wendif-labels -Wno-shift-negative-value -Wno-missing-include-dirs -Wempty-body -Wnested-externs -Wformat-security -Wformat-y2k -Winit-self -Wignored-qualifiers -Wold-style-declaration -Wold-style-definition -Wtype-limits -fstack-protector-strong -I/usr/x86_64-w64-mingw32/sys-root/mingw/include -I/usr/x86_64-w64-mingw32/sys-root/mingw/include/p11-kit-1 -I/usr/x86_64-w64-mingw32/sys-root/mingw/include  -I/usr/x86_64-w64-mingw32/sys-root/mingw/include   -I/usr/x86_64-w64-mingw32/sys-root/mingw/include/libpng16 
LDFLAGS           -Wl,--nxcompat -Wl,--no-seh -Wl,--dynamicbase -Wl,--warn-common -m64 -g 
QEMU_LDFLAGS      -L$(BUILD_DIR)/dtc/libfdt 
make              make
install           install
python            /usr/bin/python3 -B
smbd              /usr/sbin/smbd
module support    no
host CPU          x86_64
host big endian   no
target list       x86_64-softmmu aarch64-softmmu
gprof enabled     no
sparse enabled    no
strip binaries    yes
profiler          no
static build      no
SDL support       yes (2.0.5)
GTK support       yes (3.22.16)
GTK GL support    no
VTE support       no 
TLS priority      NORMAL
GNUTLS support    yes
GNUTLS rnd        yes
libgcrypt         no
libgcrypt kdf     no
nettle            yes (3.3)
nettle kdf        yes
libtasn1          yes
curses support    no
virgl support     no 
curl support      yes
mingw32 support   yes
Audio drivers     dsound
Block whitelist (rw) 
Block whitelist (ro) 
VirtFS support    no
Multipath support no
VNC support       yes
VNC SASL support  no
VNC JPEG support  yes
VNC PNG support   yes
xen support       no
brlapi support    no
bluez  support    no
Documentation     no
PIE               no
vde support       no
netmap support    no
Linux AIO support no
ATTR/XATTR support no
Install blobs     yes
KVM support       no
HAX support       yes
HVF support       no
WHPX support      no
TCG support       yes
TCG debug enabled no
TCG interpreter   no
malloc trim support no
RDMA support      no
fdt support       git
membarrier        no
preadv support    no
fdatasync         no
madvise           no
posix_madvise     no
posix_memalign    no
libcap-ng support no
vhost-net support no
vhost-crypto support no
vhost-scsi support no
vhost-vsock support no
vhost-user support no
Trace backends    simple
Trace output file trace-<pid>
spice support     no 
rbd support       no
xfsctl support    no
smartcard support no
libusb            no
usb net redir     no
OpenGL support    no
OpenGL dmabufs    no
libiscsi support  no
libnfs support    no
build guest agent yes
QGA VSS support   no
QGA w32 disk info yes
QGA MSI support   no
seccomp support   no
coroutine backend win32
coroutine pool    yes
debug stack usage no
mutex debugging   no
crypto afalg      no
GlusterFS support no
gcov              gcov
gcov enabled      no
TPM support       yes
libssh2 support   yes
TPM passthrough   no
TPM emulator      no
QOM debugging     yes
Live block migration yes
lzo support       no
snappy support    no
bzip2 support     yes
NUMA host support no
libxml2           no
tcmalloc support  no
jemalloc support  no
avx2 optimization yes
replication support yes
VxHS block device no
capstone          no
docker            no

NOTE: cross-compilers enabled:  'x86_64-w64-mingw32-gcc'
  GEN     x86_64-softmmu/config-devices.mak.tmp
  GEN     aarch64-softmmu/config-devices.mak.tmp
  GEN     config-host.h
  GEN     qemu-options.def
  GEN     qapi-gen
  GEN     trace/generated-tcg-tracers.h
  GEN     trace/generated-helpers-wrappers.h
  GEN     trace/generated-helpers.h
  GEN     trace/generated-helpers.c
  GEN     module_block.h
  GEN     x86_64-softmmu/config-devices.mak
  GEN     aarch64-softmmu/config-devices.mak
  GEN     ui/input-keymap-atset1-to-qcode.c
  GEN     ui/input-keymap-linux-to-qcode.c
  GEN     ui/input-keymap-qcode-to-atset1.c
  GEN     ui/input-keymap-qcode-to-atset2.c
  GEN     ui/input-keymap-qcode-to-atset3.c
  GEN     ui/input-keymap-qcode-to-linux.c
  GEN     ui/input-keymap-qcode-to-qnum.c
  GEN     ui/input-keymap-qcode-to-sun.c
  GEN     ui/input-keymap-qnum-to-qcode.c
  GEN     ui/input-keymap-usb-to-qcode.c
  GEN     ui/input-keymap-win32-to-qcode.c
  GEN     ui/input-keymap-x11-to-qcode.c
  GEN     ui/input-keymap-xorgevdev-to-qcode.c
  GEN     ui/input-keymap-xorgkbd-to-qcode.c
  GEN     ui/input-keymap-xorgxquartz-to-qcode.c
  GEN     ui/input-keymap-xorgxwin-to-qcode.c
  GEN     ui/input-keymap-osx-to-qcode.c
  GEN     tests/test-qapi-gen
  GEN     trace-root.h
  GEN     accel/kvm/trace.h
  GEN     accel/tcg/trace.h
  GEN     audio/trace.h
  GEN     block/trace.h
  GEN     chardev/trace.h
  GEN     crypto/trace.h
  GEN     hw/9pfs/trace.h
  GEN     hw/acpi/trace.h
  GEN     hw/alpha/trace.h
  GEN     hw/arm/trace.h
  GEN     hw/audio/trace.h
  GEN     hw/block/trace.h
  GEN     hw/block/dataplane/trace.h
  GEN     hw/char/trace.h
  GEN     hw/display/trace.h
  GEN     hw/dma/trace.h
  GEN     hw/hppa/trace.h
  GEN     hw/i2c/trace.h
  GEN     hw/i386/trace.h
  GEN     hw/i386/xen/trace.h
  GEN     hw/ide/trace.h
  GEN     hw/input/trace.h
  GEN     hw/intc/trace.h
  GEN     hw/isa/trace.h
  GEN     hw/mem/trace.h
  GEN     hw/misc/trace.h
  GEN     hw/misc/macio/trace.h
  GEN     hw/net/trace.h
  GEN     hw/nvram/trace.h
  GEN     hw/pci/trace.h
  GEN     hw/pci-host/trace.h
  GEN     hw/ppc/trace.h
  GEN     hw/rdma/trace.h
  GEN     hw/rdma/vmw/trace.h
  GEN     hw/s390x/trace.h
  GEN     hw/scsi/trace.h
  GEN     hw/sd/trace.h
  GEN     hw/sparc/trace.h
  GEN     hw/sparc64/trace.h
  GEN     hw/timer/trace.h
  GEN     hw/tpm/trace.h
  GEN     hw/usb/trace.h
  GEN     hw/vfio/trace.h
  GEN     hw/virtio/trace.h
  GEN     hw/xen/trace.h
  GEN     io/trace.h
  GEN     linux-user/trace.h
  GEN     migration/trace.h
  GEN     nbd/trace.h
  GEN     net/trace.h
  GEN     qapi/trace.h
  GEN     qom/trace.h
  GEN     scsi/trace.h
  GEN     target/arm/trace.h
  GEN     target/i386/trace.h
  GEN     target/mips/trace.h
  GEN     target/ppc/trace.h
  GEN     target/s390x/trace.h
  GEN     target/sparc/trace.h
  GEN     ui/trace.h
  GEN     util/trace.h
  GEN     trace-root.c
  GEN     accel/kvm/trace.c
  GEN     accel/tcg/trace.c
  GEN     audio/trace.c
  GEN     block/trace.c
  GEN     chardev/trace.c
  GEN     crypto/trace.c
  GEN     hw/9pfs/trace.c
  GEN     hw/acpi/trace.c
  GEN     hw/alpha/trace.c
  GEN     hw/arm/trace.c
  GEN     hw/audio/trace.c
  GEN     hw/block/trace.c
  GEN     hw/block/dataplane/trace.c
  GEN     hw/char/trace.c
  GEN     hw/display/trace.c
  GEN     hw/dma/trace.c
  GEN     hw/hppa/trace.c
  GEN     hw/i2c/trace.c
  GEN     hw/i386/trace.c
  GEN     hw/i386/xen/trace.c
  GEN     hw/ide/trace.c
  GEN     hw/input/trace.c
  GEN     hw/intc/trace.c
  GEN     hw/isa/trace.c
  GEN     hw/mem/trace.c
  GEN     hw/misc/trace.c
  GEN     hw/misc/macio/trace.c
  GEN     hw/net/trace.c
  GEN     hw/nvram/trace.c
  GEN     hw/pci/trace.c
  GEN     hw/pci-host/trace.c
  GEN     hw/ppc/trace.c
  GEN     hw/rdma/trace.c
  GEN     hw/rdma/vmw/trace.c
  GEN     hw/s390x/trace.c
  GEN     hw/scsi/trace.c
  GEN     hw/sd/trace.c
  GEN     hw/sparc/trace.c
  GEN     hw/sparc64/trace.c
  GEN     hw/timer/trace.c
  GEN     hw/tpm/trace.c
  GEN     hw/usb/trace.c
  GEN     hw/vfio/trace.c
  GEN     hw/virtio/trace.c
  GEN     hw/xen/trace.c
  GEN     io/trace.c
  GEN     linux-user/trace.c
  GEN     migration/trace.c
  GEN     nbd/trace.c
  GEN     net/trace.c
  GEN     qapi/trace.c
  GEN     qom/trace.c
  GEN     scsi/trace.c
  GEN     target/arm/trace.c
  GEN     target/i386/trace.c
  GEN     target/mips/trace.c
  GEN     target/ppc/trace.c
  GEN     target/s390x/trace.c
  GEN     target/sparc/trace.c
  GEN     ui/trace.c
  GEN     util/trace.c
  GEN     config-all-devices.mak
	 DEP /tmp/qemu-test/src/dtc/tests/dumptrees.c
	 DEP /tmp/qemu-test/src/dtc/tests/trees.S
	 DEP /tmp/qemu-test/src/dtc/tests/testutils.c
	 DEP /tmp/qemu-test/src/dtc/tests/value-labels.c
	 DEP /tmp/qemu-test/src/dtc/tests/asm_tree_dump.c
	 DEP /tmp/qemu-test/src/dtc/tests/truncated_property.c
	 DEP /tmp/qemu-test/src/dtc/tests/check_path.c
	 DEP /tmp/qemu-test/src/dtc/tests/overlay_bad_fixup.c
	 DEP /tmp/qemu-test/src/dtc/tests/overlay.c
	 DEP /tmp/qemu-test/src/dtc/tests/subnode_iterate.c
	 DEP /tmp/qemu-test/src/dtc/tests/property_iterate.c
	 DEP /tmp/qemu-test/src/dtc/tests/integer-expressions.c
	 DEP /tmp/qemu-test/src/dtc/tests/utilfdt_test.c
	 DEP /tmp/qemu-test/src/dtc/tests/path_offset_aliases.c
	 DEP /tmp/qemu-test/src/dtc/tests/add_subnode_with_nops.c
	 DEP /tmp/qemu-test/src/dtc/tests/dtbs_equal_unordered.c
	 DEP /tmp/qemu-test/src/dtc/tests/dtb_reverse.c
	 DEP /tmp/qemu-test/src/dtc/tests/dtbs_equal_ordered.c
	 DEP /tmp/qemu-test/src/dtc/tests/extra-terminating-null.c
	 DEP /tmp/qemu-test/src/dtc/tests/incbin.c
	 DEP /tmp/qemu-test/src/dtc/tests/boot-cpuid.c
	 DEP /tmp/qemu-test/src/dtc/tests/phandle_format.c
	 DEP /tmp/qemu-test/src/dtc/tests/path-references.c
	 DEP /tmp/qemu-test/src/dtc/tests/references.c
	 DEP /tmp/qemu-test/src/dtc/tests/string_escapes.c
	 DEP /tmp/qemu-test/src/dtc/tests/propname_escapes.c
	 DEP /tmp/qemu-test/src/dtc/tests/appendprop2.c
	 DEP /tmp/qemu-test/src/dtc/tests/appendprop1.c
	 DEP /tmp/qemu-test/src/dtc/tests/del_node.c
	 DEP /tmp/qemu-test/src/dtc/tests/del_property.c
	 DEP /tmp/qemu-test/src/dtc/tests/setprop.c
	 DEP /tmp/qemu-test/src/dtc/tests/set_name.c
	 DEP /tmp/qemu-test/src/dtc/tests/rw_tree1.c
	 DEP /tmp/qemu-test/src/dtc/tests/open_pack.c
	 DEP /tmp/qemu-test/src/dtc/tests/nopulate.c
	 DEP /tmp/qemu-test/src/dtc/tests/mangle-layout.c
	 DEP /tmp/qemu-test/src/dtc/tests/move_and_save.c
	 DEP /tmp/qemu-test/src/dtc/tests/sw_tree1.c
	 DEP /tmp/qemu-test/src/dtc/tests/nop_node.c
	 DEP /tmp/qemu-test/src/dtc/tests/nop_property.c
	 DEP /tmp/qemu-test/src/dtc/tests/setprop_inplace.c
	 DEP /tmp/qemu-test/src/dtc/tests/stringlist.c
	 DEP /tmp/qemu-test/src/dtc/tests/addr_size_cells.c
	 DEP /tmp/qemu-test/src/dtc/tests/notfound.c
	 DEP /tmp/qemu-test/src/dtc/tests/sized_cells.c
	 DEP /tmp/qemu-test/src/dtc/tests/char_literal.c
	 DEP /tmp/qemu-test/src/dtc/tests/get_alias.c
	 DEP /tmp/qemu-test/src/dtc/tests/node_offset_by_compatible.c
	 DEP /tmp/qemu-test/src/dtc/tests/node_check_compatible.c
	 DEP /tmp/qemu-test/src/dtc/tests/node_offset_by_phandle.c
	 DEP /tmp/qemu-test/src/dtc/tests/node_offset_by_prop_value.c
	 DEP /tmp/qemu-test/src/dtc/tests/parent_offset.c
	 DEP /tmp/qemu-test/src/dtc/tests/supernode_atdepth_offset.c
	 DEP /tmp/qemu-test/src/dtc/tests/get_path.c
	 DEP /tmp/qemu-test/src/dtc/tests/get_phandle.c
	 DEP /tmp/qemu-test/src/dtc/tests/getprop.c
	 DEP /tmp/qemu-test/src/dtc/tests/get_name.c
	 DEP /tmp/qemu-test/src/dtc/tests/path_offset.c
	 DEP /tmp/qemu-test/src/dtc/tests/subnode_offset.c
	 DEP /tmp/qemu-test/src/dtc/tests/find_property.c
	 DEP /tmp/qemu-test/src/dtc/tests/root_node.c
	 DEP /tmp/qemu-test/src/dtc/tests/get_mem_rsv.c
	 DEP /tmp/qemu-test/src/dtc/libfdt/fdt_addresses.c
	 DEP /tmp/qemu-test/src/dtc/libfdt/fdt_empty_tree.c
	 DEP /tmp/qemu-test/src/dtc/libfdt/fdt_rw.c
	 DEP /tmp/qemu-test/src/dtc/libfdt/fdt_sw.c
	 DEP /tmp/qemu-test/src/dtc/libfdt/fdt_overlay.c
	 DEP /tmp/qemu-test/src/dtc/libfdt/fdt_wip.c
	 DEP /tmp/qemu-test/src/dtc/libfdt/fdt_strerror.c
	 DEP /tmp/qemu-test/src/dtc/libfdt/fdt_ro.c
	 DEP /tmp/qemu-test/src/dtc/libfdt/fdt.c
	 DEP /tmp/qemu-test/src/dtc/fdtoverlay.c
	 DEP /tmp/qemu-test/src/dtc/util.c
	 DEP /tmp/qemu-test/src/dtc/fdtput.c
	 DEP /tmp/qemu-test/src/dtc/fdtget.c
	 DEP /tmp/qemu-test/src/dtc/fdtdump.c
	 LEX convert-dtsv0-lexer.lex.c
	 DEP /tmp/qemu-test/src/dtc/srcpos.c
	 BISON dtc-parser.tab.c
	 DEP /tmp/qemu-test/src/dtc/treesource.c
	 DEP /tmp/qemu-test/src/dtc/livetree.c
	 LEX dtc-lexer.lex.c
	 DEP /tmp/qemu-test/src/dtc/fstree.c
	 DEP /tmp/qemu-test/src/dtc/flattree.c
	 DEP /tmp/qemu-test/src/dtc/dtc.c
	 DEP /tmp/qemu-test/src/dtc/data.c
	 DEP /tmp/qemu-test/src/dtc/checks.c
	 DEP convert-dtsv0-lexer.lex.c
	 DEP dtc-parser.tab.c
	 DEP dtc-lexer.lex.c
	CHK version_gen.h
	UPD version_gen.h
	 DEP /tmp/qemu-test/src/dtc/util.c
	 CC libfdt/fdt.o
	 CC libfdt/fdt_ro.o
	 CC libfdt/fdt_sw.o
	 CC libfdt/fdt_wip.o
	 CC libfdt/fdt_rw.o
	 CC libfdt/fdt_empty_tree.o
	 CC libfdt/fdt_strerror.o
	 CC libfdt/fdt_addresses.o
	 CC libfdt/fdt_overlay.o
	 AR libfdt/libfdt.a
x86_64-w64-mingw32-ar: creating libfdt/libfdt.a
a - libfdt/fdt.o
a - libfdt/fdt_ro.o
a - libfdt/fdt_wip.o
a - libfdt/fdt_sw.o
a - libfdt/fdt_rw.o
a - libfdt/fdt_strerror.o
a - libfdt/fdt_empty_tree.o
a - libfdt/fdt_addresses.o
a - libfdt/fdt_overlay.o
  RC      version.o
  GEN     qga/qapi-generated/qapi-gen
  CC      qapi/qapi-builtin-types.o
  CC      qapi/qapi-types-char.o
  CC      qapi/qapi-types-block.o
  CC      qapi/qapi-types-block-core.o
  CC      qapi/qapi-types-crypto.o
  CC      qapi/qapi-types.o
  CC      qapi/qapi-types-common.o
  CC      qapi/qapi-types-introspect.o
  CC      qapi/qapi-types-job.o
  CC      qapi/qapi-types-migration.o
  CC      qapi/qapi-types-misc.o
  CC      qapi/qapi-types-net.o
  CC      qapi/qapi-types-rocker.o
  CC      qapi/qapi-types-run-state.o
  CC      qapi/qapi-types-sockets.o
  CC      qapi/qapi-types-tpm.o
  CC      qapi/qapi-types-trace.o
  CC      qapi/qapi-types-transaction.o
  CC      qapi/qapi-types-ui.o
  CC      qapi/qapi-builtin-visit.o
  CC      qapi/qapi-visit.o
  CC      qapi/qapi-visit-block-core.o
  CC      qapi/qapi-visit-block.o
  CC      qapi/qapi-visit-char.o
  CC      qapi/qapi-visit-common.o
  CC      qapi/qapi-visit-crypto.o
  CC      qapi/qapi-visit-introspect.o
  CC      qapi/qapi-visit-job.o
  CC      qapi/qapi-visit-migration.o
  CC      qapi/qapi-visit-misc.o
  CC      qapi/qapi-visit-net.o
  CC      qapi/qapi-visit-rocker.o
  CC      qapi/qapi-visit-run-state.o
  CC      qapi/qapi-visit-sockets.o
  CC      qapi/qapi-visit-tpm.o
  CC      qapi/qapi-visit-trace.o
  CC      qapi/qapi-visit-transaction.o
  CC      qapi/qapi-visit-ui.o
  CC      qapi/qapi-events.o
  CC      qapi/qapi-events-block-core.o
  CC      qapi/qapi-events-block.o
  CC      qapi/qapi-events-char.o
  CC      qapi/qapi-events-common.o
  CC      qapi/qapi-events-crypto.o
  CC      qapi/qapi-events-introspect.o
  CC      qapi/qapi-events-job.o
  CC      qapi/qapi-events-migration.o
  CC      qapi/qapi-events-misc.o
  CC      qapi/qapi-events-net.o
  CC      qapi/qapi-events-rocker.o
  CC      qapi/qapi-events-run-state.o
  CC      qapi/qapi-events-sockets.o
  CC      qapi/qapi-events-tpm.o
  CC      qapi/qapi-events-trace.o
  CC      qapi/qapi-events-transaction.o
  CC      qapi/qapi-events-ui.o
  CC      qapi/qapi-introspect.o
  CC      qapi/qapi-visit-core.o
  CC      qapi/qapi-dealloc-visitor.o
  CC      qapi/qobject-input-visitor.o
  CC      qapi/qobject-output-visitor.o
  CC      qapi/qmp-registry.o
  CC      qapi/qmp-dispatch.o
  CC      qapi/string-input-visitor.o
  CC      qapi/string-output-visitor.o
  CC      qapi/opts-visitor.o
  CC      qapi/qapi-clone-visitor.o
  CC      qapi/qmp-event.o
  CC      qapi/qapi-util.o
  CC      qobject/qnull.o
  CC      qobject/qnum.o
  CC      qobject/qstring.o
  CC      qobject/qdict.o
  CC      qobject/qlist.o
  CC      qobject/qbool.o
  CC      qobject/qlit.o
  CC      qobject/qjson.o
  CC      qobject/qobject.o
  CC      qobject/json-lexer.o
  CC      qobject/json-streamer.o
  CC      qobject/json-parser.o
  CC      qobject/block-qdict.o
  CC      trace/simple.o
  CC      trace/control.o
  CC      trace/qmp.o
  CC      util/osdep.o
  CC      util/unicode.o
  CC      util/cutils.o
  CC      util/qemu-timer-common.o
  CC      util/bufferiszero.o
  CC      util/lockcnt.o
  CC      util/aiocb.o
  CC      util/async.o
  CC      util/aio-wait.o
  CC      util/thread-pool.o
  CC      util/qemu-timer.o
  CC      util/main-loop.o
  CC      util/iohandler.o
  CC      util/aio-win32.o
  CC      util/event_notifier-win32.o
  CC      util/oslib-win32.o
  CC      util/qemu-thread-win32.o
  CC      util/envlist.o
  CC      util/path.o
  CC      util/module.o
  CC      util/host-utils.o
  CC      util/bitmap.o
  CC      util/bitops.o
  CC      util/hbitmap.o
  CC      util/fifo8.o
  CC      util/acl.o
  CC      util/cacheinfo.o
  CC      util/error.o
  CC      util/qemu-error.o
  CC      util/id.o
  CC      util/iov.o
  CC      util/qemu-config.o
  CC      util/qemu-sockets.o
  CC      util/uri.o
  CC      util/notify.o
  CC      util/qemu-option.o
  CC      util/qemu-progress.o
  CC      util/keyval.o
  CC      util/hexdump.o
  CC      util/crc32c.o
  CC      util/uuid.o
  CC      util/throttle.o
  CC      util/getauxval.o
  CC      util/readline.o
  CC      util/rcu.o
  CC      util/qemu-coroutine.o
  CC      util/qemu-coroutine-lock.o
  CC      util/qemu-coroutine-io.o
  CC      util/qemu-coroutine-sleep.o
  CC      util/coroutine-win32.o
  CC      util/buffer.o
  CC      util/timed-average.o
  CC      util/base64.o
  CC      util/log.o
  CC      util/pagesize.o
  CC      util/qdist.o
  CC      util/qht.o
  CC      util/range.o
  CC      util/stats64.o
  CC      util/systemd.o
  CC      util/iova-tree.o
  CC      trace-root.o
  CC      accel/kvm/trace.o
  CC      accel/tcg/trace.o
  CC      audio/trace.o
  CC      block/trace.o
  CC      chardev/trace.o
  CC      crypto/trace.o
  CC      hw/9pfs/trace.o
  CC      hw/acpi/trace.o
  CC      hw/alpha/trace.o
  CC      hw/arm/trace.o
  CC      hw/audio/trace.o
  CC      hw/block/trace.o
  CC      hw/block/dataplane/trace.o
  CC      hw/char/trace.o
  CC      hw/display/trace.o
  CC      hw/dma/trace.o
  CC      hw/hppa/trace.o
  CC      hw/i2c/trace.o
  CC      hw/i386/trace.o
  CC      hw/i386/xen/trace.o
  CC      hw/ide/trace.o
  CC      hw/input/trace.o
  CC      hw/intc/trace.o
  CC      hw/isa/trace.o
  CC      hw/mem/trace.o
  CC      hw/misc/trace.o
  CC      hw/misc/macio/trace.o
  CC      hw/net/trace.o
  CC      hw/nvram/trace.o
  CC      hw/pci/trace.o
  CC      hw/pci-host/trace.o
  CC      hw/ppc/trace.o
  CC      hw/rdma/trace.o
  CC      hw/rdma/vmw/trace.o
  CC      hw/s390x/trace.o
  CC      hw/scsi/trace.o
  CC      hw/sparc/trace.o
  CC      hw/sd/trace.o
  CC      hw/sparc64/trace.o
  CC      hw/timer/trace.o
  CC      hw/tpm/trace.o
  CC      hw/usb/trace.o
  CC      hw/vfio/trace.o
  CC      hw/virtio/trace.o
  CC      hw/xen/trace.o
  CC      io/trace.o
  CC      linux-user/trace.o
  CC      migration/trace.o
  CC      nbd/trace.o
  CC      net/trace.o
  CC      qapi/trace.o
  CC      qom/trace.o
  CC      scsi/trace.o
  CC      target/arm/trace.o
  CC      target/mips/trace.o
  CC      target/i386/trace.o
  CC      target/ppc/trace.o
  CC      target/s390x/trace.o
  CC      target/sparc/trace.o
  CC      ui/trace.o
  CC      util/trace.o
  CC      crypto/pbkdf-stub.o
  CC      stubs/arch-query-cpu-def.o
  CC      stubs/arch-query-cpu-model-expansion.o
  CC      stubs/arch-query-cpu-model-comparison.o
  CC      stubs/arch-query-cpu-model-baseline.o
  CC      stubs/bdrv-next-monitor-owned.o
  CC      stubs/blk-commit-all.o
  CC      stubs/blockdev-close-all-bdrv-states.o
  CC      stubs/clock-warp.o
  CC      stubs/cpu-get-clock.o
  CC      stubs/cpu-get-icount.o
  CC      stubs/dump.o
  CC      stubs/error-printf.o
  CC      stubs/fdset.o
  CC      stubs/gdbstub.o
  CC      stubs/get-vm-name.o
  CC      stubs/iothread.o
  CC      stubs/iothread-lock.o
  CC      stubs/is-daemonized.o
  CC      stubs/machine-init-done.o
  CC      stubs/migr-blocker.o
  CC      stubs/change-state-handler.o
  CC      stubs/monitor.o
  CC      stubs/notify-event.o
  CC      stubs/qtest.o
  CC      stubs/replay.o
  CC      stubs/runstate-check.o
  CC      stubs/set-fd-handler.o
  CC      stubs/slirp.o
  CC      stubs/sysbus.o
  CC      stubs/tpm.o
  CC      stubs/trace-control.o
  CC      stubs/uuid.o
  CC      stubs/vm-stop.o
  CC      stubs/vmstate.o
  CC      stubs/fd-register.o
  CC      stubs/qmp_memory_device.o
  CC      stubs/target-monitor-defs.o
  CC      stubs/target-get-monitor-def.o
  CC      stubs/pc_madt_cpu_entry.o
  CC      stubs/vmgenid.o
  CC      stubs/xen-common.o
  CC      stubs/xen-hvm.o
  CC      stubs/pci-host-piix.o
  CC      stubs/ram-block.o
  GEN     qemu-img-cmds.h
  CC      block.o
  CC      blockjob.o
  CC      job.o
  CC      qemu-io-cmds.o
  CC      replication.o
  CC      block/raw-format.o
  CC      block/qcow.o
  CC      block/vdi.o
  CC      block/vmdk.o
  CC      block/cloop.o
  CC      block/bochs.o
  CC      block/vpc.o
  CC      block/vvfat.o
  CC      block/dmg.o
  CC      block/qcow2.o
  CC      block/qcow2-refcount.o
  CC      block/qcow2-cluster.o
  CC      block/qcow2-snapshot.o
  CC      block/qcow2-cache.o
  CC      block/qcow2-bitmap.o
  CC      block/qed.o
  CC      block/qed-l2-cache.o
  CC      block/qed-table.o
  CC      block/qed-cluster.o
  CC      block/qed-check.o
  CC      block/vhdx.o
  CC      block/vhdx-endian.o
  CC      block/vhdx-log.o
  CC      block/quorum.o
  CC      block/parallels.o
  CC      block/blkdebug.o
  CC      block/blkverify.o
  CC      block/blkreplay.o
  CC      block/blklogwrites.o
  CC      block/block-backend.o
  CC      block/snapshot.o
  CC      block/qapi.o
  CC      block/file-win32.o
  CC      block/win32-aio.o
  CC      block/null.o
  CC      block/mirror.o
  CC      block/commit.o
  CC      block/io.o
  CC      block/create.o
  CC      block/throttle-groups.o
  CC      block/nbd.o
  CC      block/nbd-client.o
  CC      block/sheepdog.o
  CC      block/accounting.o
  CC      block/dirty-bitmap.o
  CC      block/write-threshold.o
  CC      block/backup.o
  CC      block/replication.o
  CC      block/throttle.o
  CC      block/copy-on-read.o
  CC      block/crypto.o
  CC      nbd/server.o
  CC      nbd/client.o
  CC      nbd/common.o
  CC      scsi/utils.o
  CC      scsi/pr-manager-stub.o
  CC      block/curl.o
  CC      block/ssh.o
  CC      block/dmg-bz2.o
  CC      crypto/init.o
  CC      crypto/hash.o
  CC      crypto/hash-nettle.o
  CC      crypto/hmac.o
  CC      crypto/hmac-nettle.o
  CC      crypto/aes.o
  CC      crypto/desrfb.o
  CC      crypto/cipher.o
  CC      crypto/tlscreds.o
  CC      crypto/tlscredsanon.o
  CC      crypto/tlscredspsk.o
  CC      crypto/tlscredsx509.o
  CC      crypto/tlssession.o
  CC      crypto/secret.o
  CC      crypto/random-gnutls.o
  CC      crypto/pbkdf.o
  CC      crypto/pbkdf-nettle.o
  CC      crypto/ivgen.o
  CC      crypto/ivgen-essiv.o
  CC      crypto/ivgen-plain.o
  CC      crypto/ivgen-plain64.o
  CC      crypto/afsplit.o
  CC      crypto/xts.o
  CC      crypto/block.o
  CC      crypto/block-qcow.o
  CC      crypto/block-luks.o
  CC      io/channel.o
  CC      io/channel-buffer.o
  CC      io/channel-command.o
  CC      io/channel-socket.o
  CC      io/channel-file.o
  CC      io/channel-tls.o
  CC      io/channel-watch.o
  CC      io/channel-websock.o
  CC      io/dns-resolver.o
  CC      io/channel-util.o
  CC      io/net-listener.o
  CC      io/task.o
  CC      qom/object.o
  CC      qom/container.o
  CC      qom/qom-qobject.o
  CC      qom/object_interfaces.o
  CC      qemu-io.o
  CC      blockdev.o
  CC      blockdev-nbd.o
  CC      bootdevice.o
  CC      iothread.o
  CC      job-qmp.o
  CC      qdev-monitor.o
  CC      device-hotplug.o
  CC      os-win32.o
  CC      bt-host.o
  CC      bt-vhci.o
  CC      dma-helpers.o
  CC      vl.o
  CC      tpm.o
  CC      device_tree.o
  CC      qapi/qapi-commands.o
  CC      qapi/qapi-commands-block-core.o
  CC      qapi/qapi-commands-block.o
  CC      qapi/qapi-commands-char.o
  CC      qapi/qapi-commands-common.o
  CC      qapi/qapi-commands-crypto.o
  CC      qapi/qapi-commands-introspect.o
  CC      qapi/qapi-commands-job.o
  CC      qapi/qapi-commands-migration.o
  CC      qapi/qapi-commands-misc.o
  CC      qapi/qapi-commands-net.o
  CC      qapi/qapi-commands-rocker.o
  CC      qapi/qapi-commands-run-state.o
  CC      qapi/qapi-commands-tpm.o
  CC      qapi/qapi-commands-sockets.o
  CC      qapi/qapi-commands-trace.o
  CC      qapi/qapi-commands-transaction.o
  CC      qapi/qapi-commands-ui.o
  CC      qmp.o
  CC      hmp.o
  CC      cpus-common.o
  CC      audio/audio.o
  CC      audio/noaudio.o
  CC      audio/wavaudio.o
  CC      audio/mixeng.o
  CC      audio/dsoundaudio.o
  CC      audio/audio_win_int.o
  CC      audio/wavcapture.o
  CC      backends/rng.o
  CC      backends/rng-egd.o
  CC      backends/tpm.o
  CC      backends/hostmem.o
  CC      backends/hostmem-ram.o
  CC      backends/cryptodev.o
  CC      backends/cryptodev-builtin.o
  CC      backends/cryptodev-vhost.o
  CC      block/stream.o
  CC      chardev/msmouse.o
  CC      chardev/wctablet.o
  CC      chardev/testdev.o
  CC      disas/arm.o
  CXX     disas/arm-a64.o
  CXX     disas/libvixl/vixl/utils.o
  CC      disas/i386.o
  CXX     disas/libvixl/vixl/compiler-intrinsics.o
  CXX     disas/libvixl/vixl/a64/instructions-a64.o
  CXX     disas/libvixl/vixl/a64/decoder-a64.o
  CXX     disas/libvixl/vixl/a64/disasm-a64.o
  CC      hw/acpi/core.o
  CC      hw/acpi/piix4.o
  CC      hw/acpi/pcihp.o
  CC      hw/acpi/ich9.o
  CC      hw/acpi/tco.o
  CC      hw/acpi/cpu_hotplug.o
  CC      hw/acpi/memory_hotplug.o
  CC      hw/acpi/cpu.o
  CC      hw/acpi/nvdimm.o
  CC      hw/acpi/vmgenid.o
  CC      hw/acpi/acpi_interface.o
  CC      hw/acpi/bios-linker-loader.o
  CC      hw/acpi/aml-build.o
  CC      hw/acpi/ipmi.o
  CC      hw/acpi/acpi-stub.o
  CC      hw/acpi/ipmi-stub.o
  CC      hw/audio/sb16.o
  CC      hw/audio/es1370.o
  CC      hw/audio/ac97.o
  CC      hw/audio/fmopl.o
  CC      hw/audio/adlib.o
  CC      hw/audio/gus.o
  CC      hw/audio/gusemu_hal.o
  CC      hw/audio/gusemu_mixer.o
  CC      hw/audio/cs4231a.o
  CC      hw/audio/intel-hda.o
  CC      hw/audio/hda-codec.o
  CC      hw/audio/pcspk.o
  CC      hw/audio/wm8750.o
  CC      hw/audio/pl041.o
  CC      hw/audio/lm4549.o
  CC      hw/audio/marvell_88w8618.o
  CC      hw/audio/soundhw.o
  CC      hw/block/block.o
  CC      hw/block/cdrom.o
  CC      hw/block/hd-geometry.o
  CC      hw/block/fdc.o
  CC      hw/block/m25p80.o
  CC      hw/block/nand.o
  CC      hw/block/pflash_cfi01.o
  CC      hw/block/pflash_cfi02.o
  CC      hw/block/ecc.o
  CC      hw/block/onenand.o
  CC      hw/block/nvme.o
  CC      hw/bt/core.o
  CC      hw/bt/l2cap.o
  CC      hw/bt/sdp.o
  CC      hw/bt/hci.o
  CC      hw/bt/hid.o
  CC      hw/bt/hci-csr.o
  CC      hw/char/ipoctal232.o
  CC      hw/char/parallel.o
  CC      hw/char/parallel-isa.o
  CC      hw/char/pl011.o
  CC      hw/char/serial.o
  CC      hw/char/serial-isa.o
  CC      hw/char/serial-pci.o
  CC      hw/char/virtio-console.o
  CC      hw/char/cadence_uart.o
  CC      hw/char/cmsdk-apb-uart.o
  CC      hw/char/debugcon.o
  CC      hw/char/imx_serial.o
  CC      hw/core/qdev.o
  CC      hw/core/bus.o
  CC      hw/core/reset.o
  CC      hw/core/qdev-properties.o
  CC      hw/core/qdev-fw.o
  CC      hw/core/fw-path-provider.o
  CC      hw/core/irq.o
  CC      hw/core/hotplug.o
  CC      hw/core/nmi.o
  CC      hw/core/stream.o
  CC      hw/core/ptimer.o
  CC      hw/core/sysbus.o
  CC      hw/core/machine.o
  CC      hw/core/loader.o
  CC      hw/core/register.o
  CC      hw/core/qdev-properties-system.o
  CC      hw/core/or-irq.o
  CC      hw/core/split-irq.o
  CC      hw/core/platform-bus.o
  CC      hw/cpu/core.o
  CC      hw/display/ramfb.o
  CC      hw/display/ramfb-standalone.o
  CC      hw/display/ads7846.o
  CC      hw/display/cirrus_vga.o
  CC      hw/display/pl110.o
  CC      hw/display/sii9022.o
  CC      hw/display/ssd0303.o
  CC      hw/display/ssd0323.o
  CC      hw/display/vga-pci.o
  CC      hw/display/bochs-display.o
  CC      hw/display/vga-isa.o
  CC      hw/display/vmware_vga.o
  CC      hw/display/blizzard.o
  CC      hw/display/exynos4210_fimd.o
  CC      hw/display/framebuffer.o
  CC      hw/display/tc6393xb.o
  CC      hw/dma/pl080.o
  CC      hw/dma/pl330.o
  CC      hw/dma/i8257.o
  CC      hw/dma/xilinx_axidma.o
  CC      hw/dma/xlnx-zynq-devcfg.o
  CC      hw/dma/xlnx-zdma.o
  CC      hw/gpio/max7310.o
  CC      hw/gpio/pl061.o
  CC      hw/gpio/zaurus.o
  CC      hw/gpio/gpio_key.o
  CC      hw/i2c/core.o
  CC      hw/i2c/smbus.o
  CC      hw/i2c/smbus_eeprom.o
  CC      hw/i2c/i2c-ddc.o
  CC      hw/i2c/versatile_i2c.o
  CC      hw/i2c/smbus_ich9.o
  CC      hw/i2c/pm_smbus.o
  CC      hw/i2c/bitbang_i2c.o
  CC      hw/i2c/exynos4210_i2c.o
  CC      hw/i2c/aspeed_i2c.o
  CC      hw/i2c/imx_i2c.o
  CC      hw/ide/core.o
  CC      hw/ide/atapi.o
  CC      hw/ide/qdev.o
  CC      hw/ide/pci.o
  CC      hw/ide/isa.o
  CC      hw/ide/piix.o
  CC      hw/ide/microdrive.o
  CC      hw/ide/ahci.o
  CC      hw/ide/ich.o
  CC      hw/ide/ahci-allwinner.o
  CC      hw/input/hid.o
  CC      hw/input/lm832x.o
  CC      hw/input/pckbd.o
  CC      hw/input/pl050.o
  CC      hw/input/ps2.o
  CC      hw/input/stellaris_input.o
  CC      hw/input/tsc2005.o
  CC      hw/input/virtio-input.o
  CC      hw/input/virtio-input-hid.o
  CC      hw/intc/i8259_common.o
  CC      hw/intc/i8259.o
  CC      hw/intc/pl190.o
  CC      hw/intc/xlnx-pmu-iomod-intc.o
  CC      hw/intc/xlnx-zynqmp-ipi.o
  CC      hw/intc/imx_avic.o
  CC      hw/intc/imx_gpcv2.o
  CC      hw/intc/realview_gic.o
  CC      hw/intc/ioapic_common.o
  CC      hw/intc/arm_gic.o
  CC      hw/intc/arm_gic_common.o
  CC      hw/intc/arm_gicv2m.o
  CC      hw/intc/arm_gicv3_common.o
  CC      hw/intc/arm_gicv3.o
  CC      hw/intc/arm_gicv3_dist.o
  CC      hw/intc/arm_gicv3_redist.o
  CC      hw/intc/arm_gicv3_its_common.o
  CC      hw/intc/intc.o
  CC      hw/ipack/ipack.o
  CC      hw/ipack/tpci200.o
  CC      hw/ipmi/ipmi.o
  CC      hw/ipmi/ipmi_bmc_sim.o
  CC      hw/ipmi/ipmi_bmc_extern.o
  CC      hw/ipmi/isa_ipmi_kcs.o
  CC      hw/ipmi/isa_ipmi_bt.o
  CC      hw/isa/isa-bus.o
  CC      hw/isa/isa-superio.o
  CC      hw/isa/smc37c669-superio.o
  CC      hw/isa/apm.o
  CC      hw/mem/pc-dimm.o
  CC      hw/mem/memory-device.o
  CC      hw/mem/nvdimm.o
  CC      hw/misc/applesmc.o
  CC      hw/misc/max111x.o
  CC      hw/misc/tmp105.o
  CC      hw/misc/tmp421.o
  CC      hw/misc/debugexit.o
  CC      hw/misc/sga.o
  CC      hw/misc/pc-testdev.o
  CC      hw/misc/pci-testdev.o
  CC      hw/misc/edu.o
  CC      hw/misc/pca9552.o
  CC      hw/misc/unimp.o
  CC      hw/misc/vmcoreinfo.o
  CC      hw/misc/arm_l2x0.o
  CC      hw/misc/arm_integrator_debug.o
  CC      hw/misc/a9scu.o
  CC      hw/misc/arm11scu.o
  CC      hw/net/ne2000.o
  CC      hw/net/eepro100.o
  CC      hw/net/pcnet-pci.o
  CC      hw/net/pcnet.o
  CC      hw/net/e1000.o
  CC      hw/net/e1000x_common.o
  CC      hw/net/net_tx_pkt.o
  CC      hw/net/net_rx_pkt.o
  CC      hw/net/e1000e.o
  CC      hw/net/e1000e_core.o
  CC      hw/net/rtl8139.o
  CC      hw/net/vmxnet3.o
  CC      hw/net/smc91c111.o
  CC      hw/net/lan9118.o
  CC      hw/net/ne2000-isa.o
  CC      hw/net/xgmac.o
  CC      hw/net/xilinx_axienet.o
  CC      hw/net/allwinner_emac.o
  CC      hw/net/imx_fec.o
  CC      hw/net/cadence_gem.o
  CC      hw/net/stellaris_enet.o
  CC      hw/net/ftgmac100.o
  CC      hw/net/rocker/rocker.o
  CC      hw/net/rocker/rocker_fp.o
  CC      hw/net/rocker/rocker_desc.o
  CC      hw/net/rocker/rocker_world.o
  CC      hw/net/rocker/rocker_of_dpa.o
  CC      hw/net/can/can_sja1000.o
  CC      hw/net/can/can_kvaser_pci.o
  CC      hw/net/can/can_pcm3680_pci.o
  CC      hw/net/can/can_mioe3680_pci.o
  CC      hw/nvram/eeprom_at24c.o
  CC      hw/nvram/eeprom93xx.o
  CC      hw/nvram/fw_cfg.o
  CC      hw/nvram/chrp_nvram.o
  CC      hw/pci-bridge/pci_bridge_dev.o
  CC      hw/pci-bridge/pcie_root_port.o
  CC      hw/pci-bridge/gen_pcie_root_port.o
  CC      hw/pci-bridge/pcie_pci_bridge.o
  CC      hw/pci-bridge/xio3130_upstream.o
  CC      hw/pci-bridge/pci_expander_bridge.o
  CC      hw/pci-bridge/xio3130_downstream.o
  CC      hw/pci-bridge/ioh3420.o
  CC      hw/pci-bridge/i82801b11.o
  CC      hw/pci-host/pam.o
  CC      hw/pci-host/versatile.o
  CC      hw/pci-host/piix.o
  CC      hw/pci-host/q35.o
  CC      hw/pci-host/gpex.o
  CC      hw/pci/pci.o
  CC      hw/pci-host/designware.o
  CC      hw/pci/pci_bridge.o
  CC      hw/pci/msix.o
  CC      hw/pci/msi.o
  CC      hw/pci/shpc.o
  CC      hw/pci/slotid_cap.o
  CC      hw/pci/pci_host.o
  CC      hw/pci/pcie_host.o
  CC      hw/pci/pcie.o
  CC      hw/pci/pcie_aer.o
  CC      hw/pci/pcie_port.o
  CC      hw/pci/pci-stub.o
  CC      hw/pcmcia/pcmcia.o
  CC      hw/scsi/scsi-disk.o
  CC      hw/scsi/scsi-generic.o
  CC      hw/scsi/scsi-bus.o
  CC      hw/scsi/lsi53c895a.o
  CC      hw/scsi/mptsas.o
  CC      hw/scsi/mptconfig.o
  CC      hw/scsi/mptendian.o
  CC      hw/scsi/megasas.o
  CC      hw/scsi/vmw_pvscsi.o
  CC      hw/scsi/esp.o
  CC      hw/scsi/esp-pci.o
  CC      hw/sd/pl181.o
  CC      hw/sd/ssi-sd.o
  CC      hw/sd/sd.o
  CC      hw/sd/core.o
  CC      hw/sd/sdmmc-internal.o
  CC      hw/sd/sdhci.o
  CC      hw/smbios/smbios.o
  CC      hw/smbios/smbios_type_38.o
  CC      hw/smbios/smbios-stub.o
  CC      hw/smbios/smbios_type_38-stub.o
  CC      hw/ssi/pl022.o
  CC      hw/ssi/ssi.o
  CC      hw/ssi/xilinx_spips.o
  CC      hw/ssi/aspeed_smc.o
  CC      hw/ssi/stm32f2xx_spi.o
  CC      hw/ssi/mss-spi.o
  CC      hw/timer/arm_timer.o
  CC      hw/timer/armv7m_systick.o
  CC      hw/timer/arm_mptimer.o
  CC      hw/timer/a9gtimer.o
  CC      hw/timer/cadence_ttc.o
  CC      hw/timer/ds1338.o
  CC      hw/timer/hpet.o
  CC      hw/timer/i8254_common.o
  CC      hw/timer/i8254.o
  CC      hw/timer/pl031.o
  CC      hw/timer/twl92230.o
  CC      hw/timer/imx_epit.o
  CC      hw/timer/imx_gpt.o
  CC      hw/timer/xlnx-zynqmp-rtc.o
  CC      hw/timer/stm32f2xx_timer.o
  CC      hw/timer/aspeed_timer.o
  CC      hw/timer/cmsdk-apb-timer.o
  CC      hw/timer/mss-timer.o
  CC      hw/tpm/tpm_util.o
  CC      hw/tpm/tpm_tis.o
  CC      hw/tpm/tpm_crb.o
  CC      hw/usb/core.o
  CC      hw/usb/combined-packet.o
  CC      hw/usb/bus.o
  CC      hw/usb/libhw.o
  CC      hw/usb/desc.o
  CC      hw/usb/desc-msos.o
  CC      hw/usb/hcd-uhci.o
  CC      hw/usb/hcd-ehci.o
  CC      hw/usb/hcd-ohci.o
  CC      hw/usb/hcd-ehci-pci.o
  CC      hw/usb/hcd-ehci-sysbus.o
  CC      hw/usb/hcd-xhci.o
  CC      hw/usb/hcd-xhci-nec.o
  CC      hw/usb/hcd-musb.o
  CC      hw/usb/dev-hub.o
  CC      hw/usb/dev-hid.o
  CC      hw/usb/dev-wacom.o
  CC      hw/usb/dev-storage.o
  CC      hw/usb/dev-uas.o
  CC      hw/usb/dev-audio.o
  CC      hw/usb/dev-serial.o
  CC      hw/usb/dev-network.o
  CC      hw/usb/dev-bluetooth.o
  CC      hw/usb/dev-smartcard-reader.o
  CC      hw/usb/host-stub.o
  CC      hw/virtio/virtio-bus.o
  CC      hw/virtio/virtio-rng.o
  CC      hw/virtio/virtio-pci.o
  CC      hw/virtio/virtio-mmio.o
  CC      hw/virtio/vhost-stub.o
  CC      hw/watchdog/watchdog.o
  CC      hw/watchdog/wdt_i6300esb.o
  CC      hw/watchdog/wdt_ib700.o
  CC      hw/watchdog/wdt_aspeed.o
  CC      migration/migration.o
  CC      migration/socket.o
  CC      migration/fd.o
  CC      migration/exec.o
  CC      migration/tls.o
  CC      migration/channel.o
  CC      migration/savevm.o
  CC      migration/colo-comm.o
  CC      migration/colo.o
  CC      migration/colo-failover.o
  CC      migration/vmstate.o
  CC      migration/vmstate-types.o
  CC      migration/page_cache.o
  CC      migration/qemu-file.o
  CC      migration/global_state.o
  CC      migration/qemu-file-channel.o
  CC      migration/xbzrle.o
  CC      migration/postcopy-ram.o
  CC      migration/qjson.o
  CC      migration/block-dirty-bitmap.o
  CC      migration/block.o
  CC      net/net.o
  CC      net/queue.o
  CC      net/checksum.o
  CC      net/util.o
  CC      net/hub.o
  CC      net/socket.o
  CC      net/dump.o
  CC      net/eth.o
  CC      net/slirp.o
  CC      net/filter.o
  CC      net/filter-buffer.o
  CC      net/filter-mirror.o
  CC      net/colo-compare.o
  CC      net/colo.o
  CC      net/filter-replay.o
  CC      net/filter-rewriter.o
  CC      net/tap-win32.o
  CC      net/can/can_core.o
  CC      net/can/can_host.o
  CC      qom/cpu.o
  CC      replay/replay.o
  CC      replay/replay-internal.o
  CC      replay/replay-events.o
  CC      replay/replay-time.o
  CC      replay/replay-input.o
  CC      replay/replay-char.o
  CC      replay/replay-snapshot.o
  CC      replay/replay-net.o
  CC      replay/replay-audio.o
  CC      slirp/cksum.o
  CC      slirp/if.o
  CC      slirp/ip_icmp.o
  CC      slirp/ip6_icmp.o
  CC      slirp/ip6_input.o
  CC      slirp/ip6_output.o
  CC      slirp/ip_input.o
  CC      slirp/dnssearch.o
  CC      slirp/ip_output.o
  CC      slirp/dhcpv6.o
  CC      slirp/slirp.o
  CC      slirp/mbuf.o
  CC      slirp/misc.o
  CC      slirp/sbuf.o
  CC      slirp/socket.o
  CC      slirp/tcp_input.o
  CC      slirp/tcp_output.o
  CC      slirp/tcp_timer.o
  CC      slirp/udp.o
  CC      slirp/tcp_subr.o
  CC      slirp/udp6.o
  CC      slirp/bootp.o
  CC      slirp/tftp.o
  CC      slirp/arp_table.o
  CC      slirp/ndp_table.o
  CC      slirp/ncsi.o
  CC      ui/keymaps.o
  CC      ui/console.o
  CC      ui/cursor.o
  CC      ui/qemu-pixman.o
  CC      ui/input.o
  CC      ui/input-keymap.o
  CC      ui/input-legacy.o
  CC      ui/vnc.o
  CC      ui/vnc-enc-zlib.o
  CC      ui/vnc-enc-hextile.o
  CC      ui/vnc-enc-tight.o
  CC      ui/vnc-palette.o
  CC      ui/vnc-enc-zrle.o
  CC      ui/vnc-auth-vencrypt.o
  CC      ui/vnc-ws.o
  CC      ui/vnc-jobs.o
  CC      ui/sdl2.o
  CC      ui/sdl2-input.o
  CC      ui/sdl2-2d.o
  CC      ui/gtk.o
  CC      chardev/char.o
  CC      chardev/char-console.o
  CC      chardev/char-fe.o
  CC      chardev/char-file.o
  CC      chardev/char-io.o
  CC      chardev/char-mux.o
  CC      chardev/char-null.o
  CC      chardev/char-pipe.o
  CC      chardev/char-ringbuf.o
  CC      chardev/char-serial.o
  CC      chardev/char-socket.o
  CC      chardev/char-stdio.o
  CC      chardev/char-udp.o
  CC      chardev/char-win.o
  CC      chardev/char-win-stdio.o
  CC      qga/commands.o
  CC      qga/guest-agent-command-state.o
  CC      qga/main.o
  AS      optionrom/multiboot.o
  CC      qga/commands-win32.o
  AS      optionrom/linuxboot.o
  CC      optionrom/linuxboot_dma.o
  CC      qga/service-win32.o
  CC      qga/channel-win32.o
  CC      qga/vss-win32.o
  CC      qga/qapi-generated/qga-qapi-types.o
  CC      qga/qapi-generated/qga-qapi-visit.o
  CC      qga/qapi-generated/qga-qapi-commands.o
  AS      optionrom/kvmvapic.o
  AR      libqemuutil.a
  BUILD   optionrom/multiboot.img
  BUILD   optionrom/linuxboot.img
  CC      qemu-img.o
  BUILD   optionrom/linuxboot_dma.img
  BUILD   optionrom/kvmvapic.img
  BUILD   optionrom/multiboot.raw
  BUILD   optionrom/linuxboot.raw
  BUILD   optionrom/linuxboot_dma.raw
  BUILD   optionrom/kvmvapic.raw
  SIGN    optionrom/multiboot.bin
  SIGN    optionrom/linuxboot.bin
  SIGN    optionrom/kvmvapic.bin
  SIGN    optionrom/linuxboot_dma.bin
  LINK    qemu-io.exe
  LINK    qemu-ga.exe
/tmp/qemu-test/src/qemu-img.c: In function 'img_dd':
/tmp/qemu-test/src/qemu-img.c:4603:9: error: 'in_pos' may be used uninitialized in this function [-Werror=maybe-uninitialized]
     end = size + in_pos;
     ~~~~^~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
make: *** [/tmp/qemu-test/src/rules.mak:69: qemu-img.o] Error 1
make: *** Waiting for unfinished jobs....
Traceback (most recent call last):
  File "./tests/docker/docker.py", line 565, in <module>
    sys.exit(main())
  File "./tests/docker/docker.py", line 562, in main
    return args.cmdobj.run(args, argv)
  File "./tests/docker/docker.py", line 308, in run
    return Docker().run(argv, args.keep, quiet=args.quiet)
  File "./tests/docker/docker.py", line 276, in run
    quiet=quiet)
  File "./tests/docker/docker.py", line 183, in _do_check
    return subprocess.check_call(self._command + cmd, **kwargs)
  File "/usr/lib64/python2.7/subprocess.py", line 186, in check_call
    raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['sudo', '-n', 'docker', 'run', '--label', 'com.qemu.instance.uuid=ec236f6ea18b11e899c052540069c830', '-u', '1000', '--security-opt', 'seccomp=unconfined', '--rm', '--net=none', '-e', 'TARGET_LIST=', '-e', 'EXTRA_CONFIGURE_OPTS=', '-e', 'V=', '-e', 'J=8', '-e', 'DEBUG=', '-e', 'SHOW_ENV=1', '-e', 'CCACHE_DIR=/var/tmp/ccache', '-v', '/home/patchew/.cache/qemu-docker-ccache:/var/tmp/ccache:z', '-v', '/var/tmp/patchew-tester-tmp-3unl0b1q/src/docker-src.2018-08-16-15.38.04.27074:/var/tmp/qemu:z,ro', 'qemu:fedora', '/var/tmp/qemu/run', 'test-mingw']' returned non-zero exit status 2
make[1]: *** [tests/docker/Makefile.include:213: docker-run] Error 1
make[1]: Leaving directory '/var/tmp/patchew-tester-tmp-3unl0b1q/src'
make: *** [tests/docker/Makefile.include:247: docker-run-test-mingw@fedora] Error 2

real	1m57.944s
user	0m4.669s
sys	0m3.502s
=== OUTPUT END ===

Test command exited with code: 2


---
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Please send your feedback to patchew-devel@redhat.com

Re: [Qemu-devel] [PATCH 0/2] Improve qemu-img dd

[no-reply]

Hi,

This series failed docker-quick@centos7 build test. Please find the testing commands and
their output below. If you have Docker installed, you can probably reproduce it
locally.

Type: series
Message-id: 20180815025614.53588-1-eblake@redhat.com
Subject: [Qemu-devel] [PATCH 0/2] Improve qemu-img dd

=== TEST SCRIPT BEGIN ===
#!/bin/bash
time make docker-test-quick@centos7 SHOW_ENV=1 J=8
=== TEST SCRIPT END ===

Updating 3c8cf5a9c21ff8782164d1def7f44bd888713384
Switched to a new branch 'test'
e66d307728 qemu-img: Add dd seek= option
cdb68a8e2e qemu-img: Fix dd with skip= and count=

=== OUTPUT BEGIN ===
  BUILD   centos7
make[1]: Entering directory '/var/tmp/patchew-tester-tmp-gu7i1x1n/src'
  GEN     /var/tmp/patchew-tester-tmp-gu7i1x1n/src/docker-src.2018-08-16-15.58.21.12455/qemu.tar
Cloning into '/var/tmp/patchew-tester-tmp-gu7i1x1n/src/docker-src.2018-08-16-15.58.21.12455/qemu.tar.vroot'...
done.
Checking out files:  46% (2932/6321)   
Checking out files:  47% (2971/6321)   
Checking out files:  48% (3035/6321)   
Checking out files:  49% (3098/6321)   
Checking out files:  50% (3161/6321)   
Checking out files:  51% (3224/6321)   
Checking out files:  52% (3287/6321)   
Checking out files:  53% (3351/6321)   
Checking out files:  54% (3414/6321)   
Checking out files:  55% (3477/6321)   
Checking out files:  56% (3540/6321)   
Checking out files:  57% (3603/6321)   
Checking out files:  58% (3667/6321)   
Checking out files:  59% (3730/6321)   
Checking out files:  60% (3793/6321)   
Checking out files:  61% (3856/6321)   
Checking out files:  62% (3920/6321)   
Checking out files:  63% (3983/6321)   
Checking out files:  64% (4046/6321)   
Checking out files:  65% (4109/6321)   
Checking out files:  66% (4172/6321)   
Checking out files:  67% (4236/6321)   
Checking out files:  68% (4299/6321)   
Checking out files:  69% (4362/6321)   
Checking out files:  70% (4425/6321)   
Checking out files:  71% (4488/6321)   
Checking out files:  72% (4552/6321)   
Checking out files:  73% (4615/6321)   
Checking out files:  74% (4678/6321)   
Checking out files:  75% (4741/6321)   
Checking out files:  76% (4804/6321)   
Checking out files:  77% (4868/6321)   
Checking out files:  78% (4931/6321)   
Checking out files:  79% (4994/6321)   
Checking out files:  80% (5057/6321)   
Checking out files:  81% (5121/6321)   
Checking out files:  82% (5184/6321)   
Checking out files:  83% (5247/6321)   
Checking out files:  84% (5310/6321)   
Checking out files:  85% (5373/6321)   
Checking out files:  86% (5437/6321)   
Checking out files:  87% (5500/6321)   
Checking out files:  88% (5563/6321)   
Checking out files:  89% (5626/6321)   
Checking out files:  90% (5689/6321)   
Checking out files:  91% (5753/6321)   
Checking out files:  92% (5816/6321)   
Checking out files:  93% (5879/6321)   
Checking out files:  94% (5942/6321)   
Checking out files:  95% (6005/6321)   
Checking out files:  96% (6069/6321)   
Checking out files:  97% (6132/6321)   
Checking out files:  98% (6195/6321)   
Checking out files:  99% (6258/6321)   
Checking out files: 100% (6321/6321)   
Checking out files: 100% (6321/6321), done.
Your branch is up-to-date with 'origin/test'.
Submodule 'dtc' (git://git.qemu-project.org/dtc.git) registered for path 'dtc'
Cloning into '/var/tmp/patchew-tester-tmp-gu7i1x1n/src/docker-src.2018-08-16-15.58.21.12455/qemu.tar.vroot/dtc'...
Submodule path 'dtc': checked out 'e54388015af1fb4bf04d0bca99caba1074d9cc42'
Submodule 'ui/keycodemapdb' (git://git.qemu.org/keycodemapdb.git) registered for path 'ui/keycodemapdb'
Cloning into '/var/tmp/patchew-tester-tmp-gu7i1x1n/src/docker-src.2018-08-16-15.58.21.12455/qemu.tar.vroot/ui/keycodemapdb'...
Submodule path 'ui/keycodemapdb': checked out '6b3d716e2b6472eb7189d3220552280ef3d832ce'
  COPY    RUNNER
    RUN test-quick in qemu:centos7 
Packages installed:
SDL-devel-1.2.15-14.el7.x86_64
bison-3.0.4-1.el7.x86_64
bzip2-devel-1.0.6-13.el7.x86_64
ccache-3.3.4-1.el7.x86_64
csnappy-devel-0-6.20150729gitd7bc683.el7.x86_64
flex-2.5.37-3.el7.x86_64
gcc-4.8.5-16.el7_4.2.x86_64
gettext-0.19.8.1-2.el7.x86_64
git-1.8.3.1-12.el7_4.x86_64
glib2-devel-2.50.3-3.el7.x86_64
libepoxy-devel-1.3.1-1.el7.x86_64
libfdt-devel-1.4.6-1.el7.x86_64
lzo-devel-2.06-8.el7.x86_64
make-3.82-23.el7.x86_64
mesa-libEGL-devel-17.0.1-6.20170307.el7.x86_64
mesa-libgbm-devel-17.0.1-6.20170307.el7.x86_64
package g++ is not installed
package librdmacm-devel is not installed
pixman-devel-0.34.0-1.el7.x86_64
spice-glib-devel-0.33-6.el7_4.1.x86_64
spice-server-devel-0.12.8-2.el7.1.x86_64
tar-1.26-32.el7.x86_64
vte-devel-0.28.2-10.el7.x86_64
xen-devel-4.6.6-10.el7.x86_64
zlib-devel-1.2.7-17.el7.x86_64

Environment variables:
PACKAGES=bison     bzip2-devel     ccache     csnappy-devel     flex     g++     gcc     gettext     git     glib2-devel     libepoxy-devel     libfdt-devel     librdmacm-devel     lzo-devel     make     mesa-libEGL-devel     mesa-libgbm-devel     pixman-devel     SDL-devel     spice-glib-devel     spice-server-devel     tar     vte-devel     xen-devel     zlib-devel
HOSTNAME=4eda41a67ad9
MAKEFLAGS= -j8
J=8
CCACHE_DIR=/var/tmp/ccache
EXTRA_CONFIGURE_OPTS=
V=
SHOW_ENV=1
PATH=/usr/lib/ccache:/usr/lib64/ccache:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
PWD=/
TARGET_LIST=
SHLVL=1
HOME=/home/patchew
TEST_DIR=/tmp/qemu-test
FEATURES= dtc
DEBUG=
_=/usr/bin/env

Configure options:
--enable-werror --target-list=x86_64-softmmu,aarch64-softmmu --prefix=/tmp/qemu-test/install
No C++ compiler available; disabling C++ specific optional code
Install prefix    /tmp/qemu-test/install
BIOS directory    /tmp/qemu-test/install/share/qemu
firmware path     /tmp/qemu-test/install/share/qemu-firmware
binary directory  /tmp/qemu-test/install/bin
library directory /tmp/qemu-test/install/lib
module directory  /tmp/qemu-test/install/lib/qemu
libexec directory /tmp/qemu-test/install/libexec
include directory /tmp/qemu-test/install/include
config directory  /tmp/qemu-test/install/etc
local state directory   /tmp/qemu-test/install/var
Manual directory  /tmp/qemu-test/install/share/man
ELF interp prefix /usr/gnemul/qemu-%M
Source path       /tmp/qemu-test/src
GIT binary        git
GIT submodules    
C compiler        cc
Host C compiler   cc
C++ compiler      
Objective-C compiler cc
ARFLAGS           rv
CFLAGS            -O2 -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -g 
QEMU_CFLAGS       -I/usr/include/pixman-1    -Werror -pthread -I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include   -fPIE -DPIE -m64 -mcx16 -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -Wstrict-prototypes -Wredundant-decls -Wall -Wundef -Wwrite-strings -Wmissing-prototypes -fno-strict-aliasing -fno-common -fwrapv  -Wendif-labels -Wno-missing-include-dirs -Wempty-body -Wnested-externs -Wformat-security -Wformat-y2k -Winit-self -Wignored-qualifiers -Wold-style-declaration -Wold-style-definition -Wtype-limits -fstack-protector-strong -Wno-missing-braces -I/usr/include/libpng15     -I/usr/include/spice-server -I/usr/include/cacard -I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include -I/usr/include/pixman-1 -I/usr/include/nss3 -I/usr/include/nspr4 -I/usr/include/spice-1  
LDFLAGS           -Wl,--warn-common -Wl,-z,relro -Wl,-z,now -pie -m64 -g 
QEMU_LDFLAGS       
make              make
install           install
python            python -B
smbd              /usr/sbin/smbd
module support    no
host CPU          x86_64
host big endian   no
target list       x86_64-softmmu aarch64-softmmu
gprof enabled     no
sparse enabled    no
strip binaries    yes
profiler          no
static build      no
SDL support       yes (1.2.15)
GTK support       yes (2.24.31)
GTK GL support    no
VTE support       yes (0.28.2)
TLS priority      NORMAL
GNUTLS support    no
GNUTLS rnd        no
libgcrypt         no
libgcrypt kdf     no
nettle            no 
nettle kdf        no
libtasn1          no
curses support    yes
virgl support     no 
curl support      no
mingw32 support   no
Audio drivers     oss
Block whitelist (rw) 
Block whitelist (ro) 
VirtFS support    no
Multipath support no
VNC support       yes
VNC SASL support  no
VNC JPEG support  no
VNC PNG support   yes
xen support       yes
xen ctrl version  40600
pv dom build      no
brlapi support    no
bluez  support    no
Documentation     no
PIE               yes
vde support       no
netmap support    no
Linux AIO support no
ATTR/XATTR support yes
Install blobs     yes
KVM support       yes
HAX support       no
HVF support       no
WHPX support      no
TCG support       yes
TCG debug enabled no
TCG interpreter   no
malloc trim support yes
RDMA support      yes
fdt support       system
membarrier        no
preadv support    yes
fdatasync         yes
madvise           yes
posix_madvise     yes
posix_memalign    yes
libcap-ng support no
vhost-net support yes
vhost-crypto support yes
vhost-scsi support yes
vhost-vsock support yes
vhost-user support yes
Trace backends    log
spice support     yes (0.12.12/0.12.8)
rbd support       no
xfsctl support    no
smartcard support yes
libusb            no
usb net redir     no
OpenGL support    yes
OpenGL dmabufs    yes
libiscsi support  no
libnfs support    no
build guest agent yes
QGA VSS support   no
QGA w32 disk info no
QGA MSI support   no
seccomp support   no
coroutine backend ucontext
coroutine pool    yes
debug stack usage no
mutex debugging   no
crypto afalg      no
GlusterFS support no
gcov              gcov
gcov enabled      no
TPM support       yes
libssh2 support   no
TPM passthrough   yes
TPM emulator      yes
QOM debugging     yes
Live block migration yes
lzo support       yes
snappy support    no
bzip2 support     yes
NUMA host support no
libxml2           no
tcmalloc support  no
jemalloc support  no
avx2 optimization yes
replication support yes
VxHS block device no
capstone          no
docker            no

WARNING: Use of GTK 2.0 is deprecated and will be removed in
WARNING: future releases. Please switch to using GTK 3.0

WARNING: Use of SDL 1.2 is deprecated and will be removed in
WARNING: future releases. Please switch to using SDL 2.0

NOTE: cross-compilers enabled:  'cc'
  GEN     x86_64-softmmu/config-devices.mak.tmp
  GEN     qemu-options.def
  GEN     config-host.h
  GEN     aarch64-softmmu/config-devices.mak.tmp
  GEN     qapi-gen
  GEN     trace/generated-tcg-tracers.h
  GEN     trace/generated-helpers-wrappers.h
  GEN     trace/generated-helpers.h
  GEN     trace/generated-helpers.c
  GEN     x86_64-softmmu/config-devices.mak
  GEN     module_block.h
  GEN     aarch64-softmmu/config-devices.mak
  GEN     ui/input-keymap-atset1-to-qcode.c
  GEN     ui/input-keymap-linux-to-qcode.c
  GEN     ui/input-keymap-qcode-to-atset1.c
  GEN     ui/input-keymap-qcode-to-atset2.c
  GEN     ui/input-keymap-qcode-to-atset3.c
  GEN     ui/input-keymap-qcode-to-linux.c
  GEN     ui/input-keymap-qcode-to-qnum.c
  GEN     ui/input-keymap-qcode-to-sun.c
  GEN     ui/input-keymap-qnum-to-qcode.c
  GEN     ui/input-keymap-win32-to-qcode.c
  GEN     ui/input-keymap-usb-to-qcode.c
  GEN     ui/input-keymap-x11-to-qcode.c
  GEN     ui/input-keymap-xorgevdev-to-qcode.c
  GEN     ui/input-keymap-xorgkbd-to-qcode.c
  GEN     ui/input-keymap-xorgxquartz-to-qcode.c
  GEN     ui/input-keymap-xorgxwin-to-qcode.c
  GEN     ui/input-keymap-osx-to-qcode.c
  GEN     tests/test-qapi-gen
  GEN     trace-root.h
  GEN     accel/kvm/trace.h
  GEN     accel/tcg/trace.h
  GEN     audio/trace.h
  GEN     block/trace.h
  GEN     chardev/trace.h
  GEN     crypto/trace.h
  GEN     hw/9pfs/trace.h
  GEN     hw/acpi/trace.h
  GEN     hw/alpha/trace.h
  GEN     hw/arm/trace.h
  GEN     hw/audio/trace.h
  GEN     hw/block/trace.h
  GEN     hw/block/dataplane/trace.h
  GEN     hw/char/trace.h
  GEN     hw/display/trace.h
  GEN     hw/dma/trace.h
  GEN     hw/hppa/trace.h
  GEN     hw/i2c/trace.h
  GEN     hw/i386/trace.h
  GEN     hw/i386/xen/trace.h
  GEN     hw/ide/trace.h
  GEN     hw/input/trace.h
  GEN     hw/intc/trace.h
  GEN     hw/isa/trace.h
  GEN     hw/mem/trace.h
  GEN     hw/misc/trace.h
  GEN     hw/misc/macio/trace.h
  GEN     hw/net/trace.h
  GEN     hw/nvram/trace.h
  GEN     hw/pci/trace.h
  GEN     hw/pci-host/trace.h
  GEN     hw/ppc/trace.h
  GEN     hw/rdma/trace.h
  GEN     hw/rdma/vmw/trace.h
  GEN     hw/s390x/trace.h
  GEN     hw/scsi/trace.h
  GEN     hw/sd/trace.h
  GEN     hw/sparc/trace.h
  GEN     hw/sparc64/trace.h
  GEN     hw/timer/trace.h
  GEN     hw/tpm/trace.h
  GEN     hw/usb/trace.h
  GEN     hw/vfio/trace.h
  GEN     hw/virtio/trace.h
  GEN     hw/xen/trace.h
  GEN     io/trace.h
  GEN     linux-user/trace.h
  GEN     migration/trace.h
  GEN     nbd/trace.h
  GEN     net/trace.h
  GEN     qapi/trace.h
  GEN     qom/trace.h
  GEN     scsi/trace.h
  GEN     target/arm/trace.h
  GEN     target/i386/trace.h
  GEN     target/mips/trace.h
  GEN     target/ppc/trace.h
  GEN     target/s390x/trace.h
  GEN     target/sparc/trace.h
  GEN     ui/trace.h
  GEN     util/trace.h
  GEN     trace-root.c
  GEN     accel/kvm/trace.c
  GEN     accel/tcg/trace.c
  GEN     audio/trace.c
  GEN     block/trace.c
  GEN     chardev/trace.c
  GEN     crypto/trace.c
  GEN     hw/9pfs/trace.c
  GEN     hw/acpi/trace.c
  GEN     hw/alpha/trace.c
  GEN     hw/arm/trace.c
  GEN     hw/audio/trace.c
  GEN     hw/block/trace.c
  GEN     hw/block/dataplane/trace.c
  GEN     hw/char/trace.c
  GEN     hw/display/trace.c
  GEN     hw/dma/trace.c
  GEN     hw/hppa/trace.c
  GEN     hw/i2c/trace.c
  GEN     hw/i386/trace.c
  GEN     hw/i386/xen/trace.c
  GEN     hw/ide/trace.c
  GEN     hw/input/trace.c
  GEN     hw/intc/trace.c
  GEN     hw/isa/trace.c
  GEN     hw/mem/trace.c
  GEN     hw/misc/trace.c
  GEN     hw/misc/macio/trace.c
  GEN     hw/net/trace.c
  GEN     hw/nvram/trace.c
  GEN     hw/pci/trace.c
  GEN     hw/pci-host/trace.c
  GEN     hw/ppc/trace.c
  GEN     hw/rdma/trace.c
  GEN     hw/rdma/vmw/trace.c
  GEN     hw/s390x/trace.c
  GEN     hw/scsi/trace.c
  GEN     hw/sd/trace.c
  GEN     hw/sparc/trace.c
  GEN     hw/sparc64/trace.c
  GEN     hw/timer/trace.c
  GEN     hw/tpm/trace.c
  GEN     hw/usb/trace.c
  GEN     hw/vfio/trace.c
  GEN     hw/virtio/trace.c
  GEN     hw/xen/trace.c
  GEN     io/trace.c
  GEN     linux-user/trace.c
  GEN     migration/trace.c
  GEN     nbd/trace.c
  GEN     net/trace.c
  GEN     qapi/trace.c
  GEN     qom/trace.c
  GEN     scsi/trace.c
  GEN     target/arm/trace.c
  GEN     target/i386/trace.c
  GEN     target/mips/trace.c
  GEN     target/ppc/trace.c
  GEN     target/s390x/trace.c
  GEN     target/sparc/trace.c
  GEN     ui/trace.c
  GEN     util/trace.c
  GEN     config-all-devices.mak
  CC      tests/qemu-iotests/socket_scm_helper.o
  GEN     qga/qapi-generated/qapi-gen
  CC      qapi/qapi-builtin-types.o
  CC      qapi/qapi-types-block-core.o
  CC      qapi/qapi-types-block.o
  CC      qapi/qapi-types.o
  CC      qapi/qapi-types-char.o
  CC      qapi/qapi-types-common.o
  CC      qapi/qapi-types-crypto.o
  CC      qapi/qapi-types-introspect.o
  CC      qapi/qapi-types-job.o
  CC      qapi/qapi-types-migration.o
  CC      qapi/qapi-types-misc.o
  CC      qapi/qapi-types-net.o
  CC      qapi/qapi-types-rocker.o
  CC      qapi/qapi-types-run-state.o
  CC      qapi/qapi-types-sockets.o
  CC      qapi/qapi-types-tpm.o
  CC      qapi/qapi-types-trace.o
  CC      qapi/qapi-types-transaction.o
  CC      qapi/qapi-types-ui.o
  CC      qapi/qapi-builtin-visit.o
  CC      qapi/qapi-visit.o
  CC      qapi/qapi-visit-block-core.o
  CC      qapi/qapi-visit-block.o
  CC      qapi/qapi-visit-char.o
  CC      qapi/qapi-visit-crypto.o
  CC      qapi/qapi-visit-introspect.o
  CC      qapi/qapi-visit-common.o
  CC      qapi/qapi-visit-job.o
  CC      qapi/qapi-visit-migration.o
  CC      qapi/qapi-visit-misc.o
  CC      qapi/qapi-visit-net.o
  CC      qapi/qapi-visit-rocker.o
  CC      qapi/qapi-visit-run-state.o
  CC      qapi/qapi-visit-sockets.o
  CC      qapi/qapi-visit-tpm.o
  CC      qapi/qapi-visit-trace.o
  CC      qapi/qapi-visit-transaction.o
  CC      qapi/qapi-visit-ui.o
  CC      qapi/qapi-events.o
  CC      qapi/qapi-events-block-core.o
  CC      qapi/qapi-events-block.o
  CC      qapi/qapi-events-char.o
  CC      qapi/qapi-events-common.o
  CC      qapi/qapi-events-crypto.o
  CC      qapi/qapi-events-introspect.o
  CC      qapi/qapi-events-job.o
  CC      qapi/qapi-events-migration.o
  CC      qapi/qapi-events-misc.o
  CC      qapi/qapi-events-net.o
  CC      qapi/qapi-events-rocker.o
  CC      qapi/qapi-events-run-state.o
  CC      qapi/qapi-events-sockets.o
  CC      qapi/qapi-events-tpm.o
  CC      qapi/qapi-events-trace.o
  CC      qapi/qapi-events-transaction.o
  CC      qapi/qapi-events-ui.o
  CC      qapi/qapi-introspect.o
  CC      qapi/qapi-visit-core.o
  CC      qapi/qapi-dealloc-visitor.o
  CC      qapi/qobject-output-visitor.o
  CC      qapi/qobject-input-visitor.o
  CC      qapi/qmp-registry.o
  CC      qapi/qmp-dispatch.o
  CC      qapi/string-input-visitor.o
  CC      qapi/string-output-visitor.o
  CC      qapi/opts-visitor.o
  CC      qapi/qapi-clone-visitor.o
  CC      qapi/qmp-event.o
  CC      qapi/qapi-util.o
  CC      qobject/qnull.o
  CC      qobject/qnum.o
  CC      qobject/qstring.o
  CC      qobject/qdict.o
  CC      qobject/qlist.o
  CC      qobject/qbool.o
  CC      qobject/qlit.o
  CC      qobject/qjson.o
  CC      qobject/qobject.o
  CC      qobject/json-lexer.o
  CC      qobject/json-streamer.o
  CC      qobject/json-parser.o
  CC      qobject/block-qdict.o
  CC      trace/control.o
  CC      trace/qmp.o
  CC      util/osdep.o
  CC      util/cutils.o
  CC      util/unicode.o
  CC      util/qemu-timer-common.o
  CC      util/bufferiszero.o
  CC      util/lockcnt.o
  CC      util/aiocb.o
  CC      util/async.o
  CC      util/aio-wait.o
  CC      util/thread-pool.o
  CC      util/qemu-timer.o
  CC      util/main-loop.o
  CC      util/iohandler.o
  CC      util/aio-posix.o
  CC      util/compatfd.o
  CC      util/event_notifier-posix.o
  CC      util/mmap-alloc.o
  CC      util/oslib-posix.o
  CC      util/qemu-openpty.o
  CC      util/qemu-thread-posix.o
  CC      util/memfd.o
  CC      util/envlist.o
  CC      util/path.o
  CC      util/module.o
  CC      util/host-utils.o
  CC      util/bitmap.o
  CC      util/bitops.o
  CC      util/hbitmap.o
  CC      util/fifo8.o
  CC      util/acl.o
  CC      util/cacheinfo.o
  CC      util/error.o
  CC      util/qemu-error.o
  CC      util/id.o
  CC      util/iov.o
  CC      util/qemu-config.o
  CC      util/qemu-sockets.o
  CC      util/uri.o
  CC      util/notify.o
  CC      util/qemu-option.o
  CC      util/qemu-progress.o
  CC      util/keyval.o
  CC      util/hexdump.o
  CC      util/crc32c.o
  CC      util/uuid.o
  CC      util/throttle.o
  CC      util/getauxval.o
  CC      util/readline.o
  CC      util/rcu.o
  CC      util/qemu-coroutine.o
  CC      util/qemu-coroutine-lock.o
  CC      util/qemu-coroutine-io.o
  CC      util/qemu-coroutine-sleep.o
  CC      util/coroutine-ucontext.o
  CC      util/buffer.o
  CC      util/timed-average.o
  CC      util/base64.o
  CC      util/log.o
  CC      util/pagesize.o
  CC      util/qdist.o
  CC      util/qht.o
  CC      util/range.o
  CC      util/stats64.o
  CC      util/systemd.o
  CC      util/iova-tree.o
  CC      util/vfio-helpers.o
  CC      trace-root.o
  CC      accel/kvm/trace.o
  CC      accel/tcg/trace.o
  CC      audio/trace.o
  CC      block/trace.o
  CC      chardev/trace.o
  CC      crypto/trace.o
  CC      hw/9pfs/trace.o
  CC      hw/acpi/trace.o
  CC      hw/alpha/trace.o
  CC      hw/arm/trace.o
  CC      hw/audio/trace.o
  CC      hw/block/dataplane/trace.o
  CC      hw/block/trace.o
  CC      hw/char/trace.o
  CC      hw/display/trace.o
  CC      hw/dma/trace.o
  CC      hw/hppa/trace.o
  CC      hw/i2c/trace.o
  CC      hw/i386/trace.o
  CC      hw/i386/xen/trace.o
  CC      hw/ide/trace.o
  CC      hw/input/trace.o
  CC      hw/intc/trace.o
  CC      hw/isa/trace.o
  CC      hw/mem/trace.o
  CC      hw/misc/trace.o
  CC      hw/misc/macio/trace.o
  CC      hw/net/trace.o
  CC      hw/nvram/trace.o
  CC      hw/pci/trace.o
  CC      hw/pci-host/trace.o
  CC      hw/rdma/trace.o
  CC      hw/ppc/trace.o
  CC      hw/rdma/vmw/trace.o
  CC      hw/s390x/trace.o
  CC      hw/scsi/trace.o
  CC      hw/sd/trace.o
  CC      hw/sparc/trace.o
  CC      hw/sparc64/trace.o
  CC      hw/timer/trace.o
  CC      hw/tpm/trace.o
  CC      hw/usb/trace.o
  CC      hw/vfio/trace.o
  CC      hw/virtio/trace.o
  CC      hw/xen/trace.o
  CC      io/trace.o
  CC      linux-user/trace.o
  CC      migration/trace.o
  CC      nbd/trace.o
  CC      net/trace.o
  CC      qapi/trace.o
  CC      qom/trace.o
  CC      scsi/trace.o
  CC      target/arm/trace.o
  CC      target/i386/trace.o
  CC      target/mips/trace.o
  CC      target/ppc/trace.o
  CC      target/s390x/trace.o
  CC      target/sparc/trace.o
  CC      util/trace.o
  CC      ui/trace.o
  CC      crypto/pbkdf-stub.o
  CC      stubs/arch-query-cpu-def.o
  CC      stubs/arch-query-cpu-model-expansion.o
  CC      stubs/arch-query-cpu-model-comparison.o
  CC      stubs/arch-query-cpu-model-baseline.o
  CC      stubs/bdrv-next-monitor-owned.o
  CC      stubs/blk-commit-all.o
  CC      stubs/blockdev-close-all-bdrv-states.o
  CC      stubs/clock-warp.o
  CC      stubs/cpu-get-clock.o
  CC      stubs/cpu-get-icount.o
  CC      stubs/dump.o
  CC      stubs/error-printf.o
  CC      stubs/fdset.o
  CC      stubs/gdbstub.o
  CC      stubs/get-vm-name.o
  CC      stubs/iothread-lock.o
  CC      stubs/is-daemonized.o
  CC      stubs/iothread.o
  CC      stubs/machine-init-done.o
  CC      stubs/migr-blocker.o
  CC      stubs/change-state-handler.o
  CC      stubs/monitor.o
  CC      stubs/notify-event.o
  CC      stubs/qtest.o
  CC      stubs/replay.o
  CC      stubs/runstate-check.o
  CC      stubs/set-fd-handler.o
  CC      stubs/slirp.o
  CC      stubs/sysbus.o
  CC      stubs/tpm.o
  CC      stubs/trace-control.o
  CC      stubs/uuid.o
  CC      stubs/vm-stop.o
  CC      stubs/vmstate.o
  CC      stubs/qmp_memory_device.o
  CC      stubs/target-monitor-defs.o
  CC      stubs/target-get-monitor-def.o
  CC      stubs/pc_madt_cpu_entry.o
  CC      stubs/vmgenid.o
  CC      stubs/xen-common.o
  CC      stubs/xen-hvm.o
  CC      stubs/pci-host-piix.o
  CC      stubs/ram-block.o
  CC      contrib/ivshmem-client/ivshmem-client.o
  CC      contrib/ivshmem-client/main.o
  CC      contrib/ivshmem-server/ivshmem-server.o
  CC      contrib/ivshmem-server/main.o
  CC      qemu-nbd.o
  CC      block.o
  CC      blockjob.o
  CC      job.o
  CC      qemu-io-cmds.o
  CC      replication.o
  CC      block/raw-format.o
  CC      block/qcow.o
  CC      block/vdi.o
  CC      block/vmdk.o
  CC      block/cloop.o
  CC      block/bochs.o
  CC      block/vpc.o
  CC      block/vvfat.o
  CC      block/dmg.o
  CC      block/qcow2.o
  CC      block/qcow2-refcount.o
  CC      block/qcow2-cluster.o
  CC      block/qcow2-snapshot.o
  CC      block/qcow2-cache.o
  CC      block/qcow2-bitmap.o
  CC      block/qed.o
  CC      block/qed-l2-cache.o
  CC      block/qed-table.o
  CC      block/qed-cluster.o
  CC      block/qed-check.o
  CC      block/vhdx.o
  CC      block/vhdx-endian.o
  CC      block/vhdx-log.o
  CC      block/quorum.o
  CC      block/parallels.o
  CC      block/blkdebug.o
  CC      block/blkverify.o
  CC      block/blkreplay.o
  CC      block/blklogwrites.o
  CC      block/block-backend.o
  CC      block/snapshot.o
  CC      block/qapi.o
  CC      block/file-posix.o
  CC      block/null.o
  CC      block/mirror.o
  CC      block/commit.o
  CC      block/io.o
  CC      block/create.o
  CC      block/throttle-groups.o
  CC      block/nvme.o
  CC      block/nbd.o
  CC      block/nbd-client.o
  CC      block/sheepdog.o
  CC      block/accounting.o
  CC      block/dirty-bitmap.o
  CC      block/write-threshold.o
  CC      block/backup.o
  CC      block/replication.o
  CC      block/throttle.o
  CC      block/copy-on-read.o
  CC      block/crypto.o
  CC      nbd/server.o
  CC      nbd/client.o
  CC      nbd/common.o
  CC      scsi/utils.o
  CC      scsi/pr-manager.o
  CC      scsi/pr-manager-helper.o
  CC      block/dmg-bz2.o
  CC      crypto/init.o
  CC      crypto/hash.o
  CC      crypto/hash-glib.o
  CC      crypto/hmac.o
  CC      crypto/hmac-glib.o
  CC      crypto/aes.o
  CC      crypto/desrfb.o
  CC      crypto/cipher.o
  CC      crypto/tlscreds.o
  CC      crypto/tlscredsanon.o
  CC      crypto/tlscredspsk.o
  CC      crypto/tlscredsx509.o
  CC      crypto/tlssession.o
  CC      crypto/secret.o
  CC      crypto/random-platform.o
  CC      crypto/pbkdf.o
  CC      crypto/ivgen.o
  CC      crypto/ivgen-essiv.o
  CC      crypto/ivgen-plain.o
  CC      crypto/ivgen-plain64.o
  CC      crypto/afsplit.o
  CC      crypto/xts.o
  CC      crypto/block.o
  CC      crypto/block-qcow.o
  CC      crypto/block-luks.o
  CC      io/channel.o
  CC      io/channel-buffer.o
  CC      io/channel-command.o
  CC      io/channel-file.o
  CC      io/channel-socket.o
  CC      io/channel-tls.o
  CC      io/channel-watch.o
  CC      io/channel-websock.o
  CC      io/channel-util.o
  CC      io/dns-resolver.o
  CC      io/net-listener.o
  CC      io/task.o
  CC      qom/object.o
  CC      qom/container.o
  CC      qom/qom-qobject.o
  CC      qom/object_interfaces.o
  GEN     qemu-img-cmds.h
  CC      qemu-io.o
  CC      scsi/qemu-pr-helper.o
  CC      qemu-bridge-helper.o
  CC      blockdev.o
  CC      blockdev-nbd.o
  CC      bootdevice.o
  CC      iothread.o
  CC      job-qmp.o
  CC      qdev-monitor.o
  CC      device-hotplug.o
  CC      os-posix.o
  CC      bt-host.o
  CC      bt-vhci.o
  CC      dma-helpers.o
  CC      vl.o
  CC      tpm.o
  CC      device_tree.o
  CC      qapi/qapi-commands.o
  CC      qapi/qapi-commands-block-core.o
  CC      qapi/qapi-commands-block.o
  CC      qapi/qapi-commands-char.o
  CC      qapi/qapi-commands-common.o
  CC      qapi/qapi-commands-crypto.o
  CC      qapi/qapi-commands-introspect.o
  CC      qapi/qapi-commands-job.o
  CC      qapi/qapi-commands-migration.o
  CC      qapi/qapi-commands-misc.o
  CC      qapi/qapi-commands-net.o
  CC      qapi/qapi-commands-rocker.o
  CC      qapi/qapi-commands-run-state.o
  CC      qapi/qapi-commands-sockets.o
  CC      qapi/qapi-commands-tpm.o
  CC      qapi/qapi-commands-trace.o
  CC      qapi/qapi-commands-transaction.o
  CC      qapi/qapi-commands-ui.o
  CC      qmp.o
  CC      hmp.o
  CC      cpus-common.o
  CC      audio/audio.o
  CC      audio/noaudio.o
  CC      audio/wavaudio.o
  CC      audio/mixeng.o
  CC      audio/spiceaudio.o
  CC      audio/wavcapture.o
  CC      backends/rng.o
  CC      backends/rng-egd.o
  CC      backends/rng-random.o
  CC      backends/tpm.o
  CC      backends/hostmem.o
  CC      backends/hostmem-ram.o
  CC      backends/hostmem-file.o
  CC      backends/cryptodev.o
  CC      backends/cryptodev-builtin.o
  CC      backends/cryptodev-vhost.o
  CC      backends/cryptodev-vhost-user.o
  CC      backends/hostmem-memfd.o
  CC      block/stream.o
  CC      chardev/msmouse.o
  CC      chardev/wctablet.o
  CC      chardev/testdev.o
  CC      chardev/spice.o
  CC      disas/arm.o
  CC      disas/i386.o
  CC      fsdev/qemu-fsdev-dummy.o
  CC      fsdev/qemu-fsdev-opts.o
  CC      fsdev/qemu-fsdev-throttle.o
  CC      hw/acpi/core.o
  CC      hw/acpi/piix4.o
  CC      hw/acpi/pcihp.o
  CC      hw/acpi/ich9.o
  CC      hw/acpi/tco.o
  CC      hw/acpi/cpu_hotplug.o
  CC      hw/acpi/memory_hotplug.o
  CC      hw/acpi/cpu.o
  CC      hw/acpi/nvdimm.o
  CC      hw/acpi/vmgenid.o
  CC      hw/acpi/acpi_interface.o
  CC      hw/acpi/bios-linker-loader.o
  CC      hw/acpi/aml-build.o
  CC      hw/acpi/ipmi.o
  CC      hw/acpi/acpi-stub.o
  CC      hw/acpi/ipmi-stub.o
  CC      hw/audio/sb16.o
  CC      hw/audio/es1370.o
  CC      hw/audio/ac97.o
  CC      hw/audio/fmopl.o
  CC      hw/audio/adlib.o
  CC      hw/audio/gus.o
  CC      hw/audio/gusemu_hal.o
  CC      hw/audio/gusemu_mixer.o
  CC      hw/audio/cs4231a.o
  CC      hw/audio/intel-hda.o
  CC      hw/audio/hda-codec.o
  CC      hw/audio/wm8750.o
  CC      hw/audio/pcspk.o
  CC      hw/audio/pl041.o
  CC      hw/audio/lm4549.o
  CC      hw/audio/marvell_88w8618.o
  CC      hw/audio/soundhw.o
  CC      hw/block/block.o
  CC      hw/block/cdrom.o
  CC      hw/block/hd-geometry.o
  CC      hw/block/fdc.o
  CC      hw/block/m25p80.o
  CC      hw/block/nand.o
  CC      hw/block/pflash_cfi01.o
  CC      hw/block/pflash_cfi02.o
  CC      hw/block/xen_disk.o
  CC      hw/block/ecc.o
  CC      hw/block/onenand.o
  CC      hw/block/nvme.o
  CC      hw/bt/core.o
  CC      hw/bt/l2cap.o
  CC      hw/bt/sdp.o
  CC      hw/bt/hci.o
  CC      hw/bt/hci-csr.o
  CC      hw/bt/hid.o
  CC      hw/char/ipoctal232.o
  CC      hw/char/parallel.o
  CC      hw/char/parallel-isa.o
  CC      hw/char/pl011.o
  CC      hw/char/serial.o
  CC      hw/char/serial-isa.o
  CC      hw/char/serial-pci.o
  CC      hw/char/virtio-console.o
  CC      hw/char/xen_console.o
  CC      hw/char/cadence_uart.o
  CC      hw/char/cmsdk-apb-uart.o
  CC      hw/char/debugcon.o
  CC      hw/char/imx_serial.o
  CC      hw/core/qdev.o
  CC      hw/core/qdev-properties.o
  CC      hw/core/bus.o
  CC      hw/core/reset.o
  CC      hw/core/qdev-fw.o
  CC      hw/core/fw-path-provider.o
  CC      hw/core/irq.o
  CC      hw/core/hotplug.o
  CC      hw/core/nmi.o
  CC      hw/core/stream.o
  CC      hw/core/ptimer.o
  CC      hw/core/sysbus.o
  CC      hw/core/machine.o
  CC      hw/core/loader.o
  CC      hw/core/qdev-properties-system.o
  CC      hw/core/register.o
  CC      hw/core/or-irq.o
  CC      hw/core/split-irq.o
  CC      hw/core/platform-bus.o
  CC      hw/cpu/core.o
  CC      hw/display/ramfb-standalone.o
  CC      hw/display/ramfb.o
  CC      hw/display/ads7846.o
  CC      hw/display/cirrus_vga.o
  CC      hw/display/pl110.o
  CC      hw/display/sii9022.o
  CC      hw/display/ssd0303.o
  CC      hw/display/ssd0323.o
  CC      hw/display/xenfb.o
  CC      hw/display/vga-pci.o
  CC      hw/display/bochs-display.o
  CC      hw/display/vmware_vga.o
  CC      hw/display/vga-isa.o
  CC      hw/display/blizzard.o
  CC      hw/display/exynos4210_fimd.o
  CC      hw/display/framebuffer.o
  CC      hw/display/tc6393xb.o
  CC      hw/display/qxl.o
  CC      hw/display/qxl-logger.o
  CC      hw/display/qxl-render.o
  CC      hw/dma/pl080.o
  CC      hw/dma/pl330.o
  CC      hw/dma/i8257.o
  CC      hw/dma/xilinx_axidma.o
  CC      hw/dma/xlnx-zynq-devcfg.o
  CC      hw/dma/xlnx-zdma.o
  CC      hw/gpio/max7310.o
  CC      hw/gpio/pl061.o
  CC      hw/gpio/zaurus.o
  CC      hw/gpio/gpio_key.o
  CC      hw/i2c/core.o
  CC      hw/i2c/smbus.o
  CC      hw/i2c/smbus_eeprom.o
  CC      hw/i2c/i2c-ddc.o
  CC      hw/i2c/versatile_i2c.o
  CC      hw/i2c/smbus_ich9.o
  CC      hw/i2c/pm_smbus.o
  CC      hw/i2c/bitbang_i2c.o
  CC      hw/i2c/exynos4210_i2c.o
  CC      hw/i2c/imx_i2c.o
  CC      hw/i2c/aspeed_i2c.o
  CC      hw/ide/core.o
  CC      hw/ide/atapi.o
  CC      hw/ide/qdev.o
  CC      hw/ide/pci.o
  CC      hw/ide/isa.o
  CC      hw/ide/piix.o
  CC      hw/ide/microdrive.o
  CC      hw/ide/ahci.o
  CC      hw/ide/ich.o
  CC      hw/ide/ahci-allwinner.o
  CC      hw/input/hid.o
  CC      hw/input/lm832x.o
  CC      hw/input/pckbd.o
  CC      hw/input/pl050.o
  CC      hw/input/ps2.o
  CC      hw/input/stellaris_input.o
  CC      hw/input/tsc2005.o
  CC      hw/input/virtio-input.o
  CC      hw/input/virtio-input-hid.o
  CC      hw/input/virtio-input-host.o
  CC      hw/intc/i8259_common.o
  CC      hw/intc/i8259.o
  CC      hw/intc/pl190.o
  CC      hw/intc/xlnx-pmu-iomod-intc.o
  CC      hw/intc/xlnx-zynqmp-ipi.o
  CC      hw/intc/imx_avic.o
  CC      hw/intc/imx_gpcv2.o
  CC      hw/intc/realview_gic.o
  CC      hw/intc/ioapic_common.o
  CC      hw/intc/arm_gic_common.o
  CC      hw/intc/arm_gic.o
  CC      hw/intc/arm_gicv2m.o
  CC      hw/intc/arm_gicv3_common.o
  CC      hw/intc/arm_gicv3.o
  CC      hw/intc/arm_gicv3_dist.o
  CC      hw/intc/arm_gicv3_redist.o
  CC      hw/intc/arm_gicv3_its_common.o
  CC      hw/intc/intc.o
  CC      hw/ipack/ipack.o
  CC      hw/ipack/tpci200.o
  CC      hw/ipmi/ipmi.o
  CC      hw/ipmi/ipmi_bmc_sim.o
  CC      hw/ipmi/ipmi_bmc_extern.o
  CC      hw/ipmi/isa_ipmi_kcs.o
  CC      hw/ipmi/isa_ipmi_bt.o
  CC      hw/isa/isa-bus.o
  CC      hw/isa/isa-superio.o
  CC      hw/isa/smc37c669-superio.o
  CC      hw/mem/pc-dimm.o
  CC      hw/isa/apm.o
  CC      hw/mem/memory-device.o
  CC      hw/mem/nvdimm.o
  CC      hw/misc/applesmc.o
  CC      hw/misc/max111x.o
  CC      hw/misc/tmp105.o
  CC      hw/misc/debugexit.o
  CC      hw/misc/tmp421.o
  CC      hw/misc/sga.o
  CC      hw/misc/pc-testdev.o
  CC      hw/misc/pci-testdev.o
  CC      hw/misc/edu.o
  CC      hw/misc/pca9552.o
  CC      hw/misc/unimp.o
  CC      hw/misc/vmcoreinfo.o
  CC      hw/misc/arm_l2x0.o
  CC      hw/misc/arm_integrator_debug.o
  CC      hw/misc/a9scu.o
  CC      hw/misc/arm11scu.o
  CC      hw/net/xen_nic.o
  CC      hw/net/ne2000.o
  CC      hw/net/eepro100.o
  CC      hw/net/pcnet-pci.o
  CC      hw/net/pcnet.o
  CC      hw/net/e1000.o
  CC      hw/net/e1000x_common.o
  CC      hw/net/net_tx_pkt.o
  CC      hw/net/net_rx_pkt.o
  CC      hw/net/e1000e.o
  CC      hw/net/e1000e_core.o
  CC      hw/net/rtl8139.o
  CC      hw/net/vmxnet3.o
  CC      hw/net/smc91c111.o
  CC      hw/net/lan9118.o
  CC      hw/net/ne2000-isa.o
  CC      hw/net/xgmac.o
  CC      hw/net/xilinx_axienet.o
  CC      hw/net/allwinner_emac.o
  CC      hw/net/imx_fec.o
  CC      hw/net/cadence_gem.o
  CC      hw/net/ftgmac100.o
  CC      hw/net/stellaris_enet.o
  CC      hw/net/rocker/rocker.o
  CC      hw/net/rocker/rocker_fp.o
  CC      hw/net/rocker/rocker_desc.o
  CC      hw/net/rocker/rocker_world.o
  CC      hw/net/rocker/rocker_of_dpa.o
  CC      hw/net/can/can_sja1000.o
  CC      hw/net/can/can_kvaser_pci.o
  CC      hw/net/can/can_pcm3680_pci.o
  CC      hw/net/can/can_mioe3680_pci.o
  CC      hw/nvram/eeprom93xx.o
  CC      hw/nvram/eeprom_at24c.o
  CC      hw/nvram/fw_cfg.o
  CC      hw/nvram/chrp_nvram.o
  CC      hw/pci-bridge/pci_bridge_dev.o
  CC      hw/pci-bridge/pcie_root_port.o
  CC      hw/pci-bridge/gen_pcie_root_port.o
  CC      hw/pci-bridge/pcie_pci_bridge.o
  CC      hw/pci-bridge/pci_expander_bridge.o
  CC      hw/pci-bridge/xio3130_upstream.o
  CC      hw/pci-bridge/xio3130_downstream.o
  CC      hw/pci-bridge/ioh3420.o
  CC      hw/pci-bridge/i82801b11.o
  CC      hw/pci-host/pam.o
  CC      hw/pci-host/versatile.o
  CC      hw/pci-host/piix.o
  CC      hw/pci-host/q35.o
  CC      hw/pci-host/gpex.o
  CC      hw/pci-host/designware.o
  CC      hw/pci/pci.o
  CC      hw/pci/pci_bridge.o
  CC      hw/pci/msix.o
  CC      hw/pci/msi.o
  CC      hw/pci/shpc.o
  CC      hw/pci/slotid_cap.o
  CC      hw/pci/pci_host.o
  CC      hw/pci/pcie_host.o
  CC      hw/pci/pcie.o
  CC      hw/pci/pcie_aer.o
  CC      hw/pci/pcie_port.o
  CC      hw/pci/pci-stub.o
  CC      hw/pcmcia/pcmcia.o
  CC      hw/scsi/scsi-disk.o
  CC      hw/scsi/scsi-generic.o
  CC      hw/scsi/scsi-bus.o
  CC      hw/scsi/lsi53c895a.o
  CC      hw/scsi/mptsas.o
  CC      hw/scsi/mptconfig.o
  CC      hw/scsi/mptendian.o
  CC      hw/scsi/megasas.o
  CC      hw/scsi/vmw_pvscsi.o
  CC      hw/scsi/esp.o
  CC      hw/scsi/esp-pci.o
  CC      hw/sd/pl181.o
  CC      hw/sd/ssi-sd.o
  CC      hw/sd/sd.o
  CC      hw/sd/core.o
  CC      hw/sd/sdmmc-internal.o
  CC      hw/sd/sdhci.o
  CC      hw/smbios/smbios.o
  CC      hw/smbios/smbios_type_38.o
  CC      hw/smbios/smbios-stub.o
  CC      hw/smbios/smbios_type_38-stub.o
  CC      hw/ssi/pl022.o
  CC      hw/ssi/ssi.o
  CC      hw/ssi/xilinx_spips.o
  CC      hw/ssi/aspeed_smc.o
  CC      hw/ssi/stm32f2xx_spi.o
  CC      hw/ssi/mss-spi.o
  CC      hw/timer/arm_timer.o
  CC      hw/timer/arm_mptimer.o
  CC      hw/timer/armv7m_systick.o
  CC      hw/timer/a9gtimer.o
  CC      hw/timer/cadence_ttc.o
  CC      hw/timer/ds1338.o
  CC      hw/timer/hpet.o
  CC      hw/timer/i8254_common.o
  CC      hw/timer/i8254.o
  CC      hw/timer/pl031.o
  CC      hw/timer/twl92230.o
  CC      hw/timer/imx_epit.o
  CC      hw/timer/imx_gpt.o
  CC      hw/timer/xlnx-zynqmp-rtc.o
  CC      hw/timer/stm32f2xx_timer.o
  CC      hw/timer/aspeed_timer.o
  CC      hw/timer/cmsdk-apb-timer.o
  CC      hw/timer/mss-timer.o
  CC      hw/tpm/tpm_util.o
  CC      hw/tpm/tpm_tis.o
  CC      hw/tpm/tpm_crb.o
  CC      hw/tpm/tpm_emulator.o
  CC      hw/tpm/tpm_passthrough.o
  CC      hw/usb/core.o
  CC      hw/usb/combined-packet.o
  CC      hw/usb/bus.o
  CC      hw/usb/libhw.o
  CC      hw/usb/desc.o
  CC      hw/usb/desc-msos.o
  CC      hw/usb/hcd-uhci.o
  CC      hw/usb/hcd-ohci.o
  CC      hw/usb/hcd-ehci.o
  CC      hw/usb/hcd-ehci-pci.o
  CC      hw/usb/hcd-xhci.o
  CC      hw/usb/hcd-xhci-nec.o
  CC      hw/usb/hcd-ehci-sysbus.o
  CC      hw/usb/hcd-musb.o
  CC      hw/usb/dev-hub.o
  CC      hw/usb/dev-hid.o
  CC      hw/usb/dev-wacom.o
  CC      hw/usb/dev-storage.o
  CC      hw/usb/dev-uas.o
  CC      hw/usb/dev-audio.o
  CC      hw/usb/dev-serial.o
  CC      hw/usb/dev-network.o
  CC      hw/usb/dev-bluetooth.o
  CC      hw/usb/dev-smartcard-reader.o
  CC      hw/usb/ccid-card-passthru.o
  CC      hw/usb/ccid-card-emulated.o
  CC      hw/usb/dev-mtp.o
  CC      hw/usb/host-stub.o
  CC      hw/virtio/virtio-bus.o
  CC      hw/virtio/virtio-pci.o
  CC      hw/virtio/virtio-rng.o
  CC      hw/virtio/virtio-mmio.o
  CC      hw/virtio/vhost-stub.o
  CC      hw/watchdog/watchdog.o
  CC      hw/watchdog/wdt_i6300esb.o
  CC      hw/watchdog/wdt_ib700.o
  CC      hw/watchdog/wdt_aspeed.o
  CC      hw/xen/xen_backend.o
  CC      hw/xen/xen_devconfig.o
  CC      hw/xen/xen_pvdev.o
  CC      hw/xen/xen-common.o
  CC      migration/migration.o
  CC      migration/socket.o
  CC      migration/fd.o
  CC      migration/exec.o
  CC      migration/tls.o
  CC      migration/channel.o
  CC      migration/savevm.o
  CC      migration/colo-comm.o
  CC      migration/colo.o
  CC      migration/colo-failover.o
  CC      migration/vmstate-types.o
  CC      migration/vmstate.o
  CC      migration/page_cache.o
  CC      migration/qemu-file.o
  CC      migration/global_state.o
  CC      migration/qemu-file-channel.o
  CC      migration/xbzrle.o
  CC      migration/postcopy-ram.o
  CC      migration/qjson.o
  CC      migration/block-dirty-bitmap.o
  CC      migration/rdma.o
  CC      migration/block.o
  CC      net/net.o
  CC      net/queue.o
  CC      net/checksum.o
  CC      net/util.o
  CC      net/hub.o
  CC      net/socket.o
  CC      net/dump.o
  CC      net/eth.o
  CC      net/l2tpv3.o
  CC      net/vhost-user.o
  CC      net/slirp.o
  CC      net/filter.o
  CC      net/filter-buffer.o
  CC      net/filter-mirror.o
  CC      net/colo-compare.o
  CC      net/colo.o
  CC      net/filter-rewriter.o
  CC      net/filter-replay.o
  CC      net/tap.o
  CC      net/tap-linux.o
  CC      net/can/can_core.o
  CC      net/can/can_host.o
  CC      net/can/can_socketcan.o
  CC      qom/cpu.o
  CC      replay/replay.o
  CC      replay/replay-internal.o
  CC      replay/replay-events.o
  CC      replay/replay-time.o
  CC      replay/replay-input.o
  CC      replay/replay-char.o
  CC      replay/replay-snapshot.o
  CC      replay/replay-net.o
  CC      replay/replay-audio.o
  CC      slirp/cksum.o
  CC      slirp/if.o
  CC      slirp/ip_icmp.o
  CC      slirp/ip6_icmp.o
  CC      slirp/ip6_input.o
  CC      slirp/ip6_output.o
  CC      slirp/ip_input.o
  CC      slirp/ip_output.o
  CC      slirp/dnssearch.o
  CC      slirp/dhcpv6.o
  CC      slirp/slirp.o
  CC      slirp/mbuf.o
  CC      slirp/misc.o
  CC      slirp/socket.o
  CC      slirp/sbuf.o
  CC      slirp/tcp_input.o
  CC      slirp/tcp_output.o
  CC      slirp/tcp_subr.o
  CC      slirp/tcp_timer.o
  CC      slirp/udp.o
  CC      slirp/udp6.o
  CC      slirp/bootp.o
  CC      slirp/tftp.o
  CC      slirp/arp_table.o
  CC      slirp/ndp_table.o
  CC      slirp/ncsi.o
  CC      ui/keymaps.o
  CC      ui/console.o
  CC      ui/cursor.o
  CC      ui/qemu-pixman.o
  CC      ui/input.o
  CC      ui/input-keymap.o
  CC      ui/input-legacy.o
  CC      ui/input-linux.o
  CC      ui/spice-core.o
  CC      ui/spice-input.o
  CC      ui/spice-display.o
  CC      ui/vnc.o
  CC      ui/vnc-enc-zlib.o
  CC      ui/vnc-enc-hextile.o
  CC      ui/vnc-enc-tight.o
  CC      ui/vnc-palette.o
  CC      ui/vnc-enc-zrle.o
  CC      ui/vnc-auth-vencrypt.o
  CC      ui/vnc-ws.o
  CC      ui/vnc-jobs.o
  VERT    ui/shader/texture-blit-vert.h
  VERT    ui/shader/texture-blit-flip-vert.h
  FRAG    ui/shader/texture-blit-frag.h
  CC      ui/console-gl.o
  CC      ui/egl-helpers.o
  CC      ui/egl-context.o
  CC      ui/egl-headless.o
  CC      audio/ossaudio.o
  CC      ui/sdl.o
  CC      ui/sdl_zoom.o
  CC      ui/x_keymap.o
  CC      ui/gtk.o
  CC      ui/gtk-egl.o
  CC      ui/curses.o
  CC      chardev/char.o
  CC      chardev/char-fd.o
  CC      chardev/char-fe.o
  CC      chardev/char-file.o
  CC      chardev/char-mux.o
  CC      chardev/char-io.o
  CC      chardev/char-null.o
  CC      chardev/char-parallel.o
  CC      chardev/char-pipe.o
  CC      chardev/char-pty.o
  CC      chardev/char-ringbuf.o
  CC      chardev/char-serial.o
  CC      chardev/char-socket.o
  CC      chardev/char-stdio.o
  CC      chardev/char-udp.o
  LINK    tests/qemu-iotests/socket_scm_helper
  CC      qga/commands.o
  CC      qga/guest-agent-command-state.o
  CC      qga/main.o
  CC      qga/commands-posix.o
  CC      qga/channel-posix.o
  CC      qga/qapi-generated/qga-qapi-types.o
  CC      qga/qapi-generated/qga-qapi-visit.o
  CC      qga/qapi-generated/qga-qapi-commands.o
  AR      libqemuutil.a
  CC      qemu-img.o
  CC      ui/shader.o
  AS      optionrom/multiboot.o
  AS      optionrom/linuxboot.o
  CC      optionrom/linuxboot_dma.o
  AS      optionrom/kvmvapic.o
  BUILD   optionrom/multiboot.img
  BUILD   optionrom/linuxboot_dma.img
  BUILD   optionrom/multiboot.raw
  BUILD   optionrom/linuxboot.img
  BUILD   optionrom/linuxboot_dma.raw
  BUILD   optionrom/kvmvapic.img
  BUILD   optionrom/linuxboot.raw
  BUILD   optionrom/kvmvapic.raw
  SIGN    optionrom/linuxboot.bin
  SIGN    optionrom/multiboot.bin
  SIGN    optionrom/linuxboot_dma.bin
  SIGN    optionrom/kvmvapic.bin
  LINK    qemu-ga
  LINK    ivshmem-client
  LINK    ivshmem-server
  LINK    qemu-nbd
  LINK    qemu-io
  LINK    scsi/qemu-pr-helper
  LINK    qemu-bridge-helper
/tmp/qemu-test/src/qemu-img.c: In function 'img_dd':
/tmp/qemu-test/src/qemu-img.c:4603:9: error: 'in_pos' may be used uninitialized in this function [-Werror=maybe-uninitialized]
     end = size + in_pos;
         ^
cc1: all warnings being treated as errors
make: *** [qemu-img.o] Error 1
make: *** Waiting for unfinished jobs....
Traceback (most recent call last):
  File "./tests/docker/docker.py", line 565, in <module>
    sys.exit(main())
  File "./tests/docker/docker.py", line 562, in main
    return args.cmdobj.run(args, argv)
  File "./tests/docker/docker.py", line 308, in run
    return Docker().run(argv, args.keep, quiet=args.quiet)
  File "./tests/docker/docker.py", line 276, in run
    quiet=quiet)
  File "./tests/docker/docker.py", line 183, in _do_check
    return subprocess.check_call(self._command + cmd, **kwargs)
  File "/usr/lib64/python2.7/subprocess.py", line 186, in check_call
    raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['sudo', '-n', 'docker', 'run', '--label', 'com.qemu.instance.uuid=bfcc24a8a18e11e8a55552540069c830', '-u', '1000', '--security-opt', 'seccomp=unconfined', '--rm', '--net=none', '-e', 'TARGET_LIST=', '-e', 'EXTRA_CONFIGURE_OPTS=', '-e', 'V=', '-e', 'J=8', '-e', 'DEBUG=', '-e', 'SHOW_ENV=1', '-e', 'CCACHE_DIR=/var/tmp/ccache', '-v', '/home/patchew/.cache/qemu-docker-ccache:/var/tmp/ccache:z', '-v', '/var/tmp/patchew-tester-tmp-gu7i1x1n/src/docker-src.2018-08-16-15.58.21.12455:/var/tmp/qemu:z,ro', 'qemu:centos7', '/var/tmp/qemu/run', 'test-quick']' returned non-zero exit status 2
make[1]: *** [tests/docker/Makefile.include:213: docker-run] Error 1
make[1]: Leaving directory '/var/tmp/patchew-tester-tmp-gu7i1x1n/src'
make: *** [tests/docker/Makefile.include:247: docker-run-test-quick@centos7] Error 2

real	1m45.083s
user	0m4.852s
sys	0m3.551s
=== OUTPUT END ===

Test command exited with code: 2


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