[Qemu-devel] [PATCH v3 0/2] bitmap: refine bitmap_set

[Qemu-devel] [PATCH v3 0/2] bitmap: refine bitmap_set

[Wei Yang]

Patch 1 refine bitmap_set a little.
Patch 2 add related test case to bitmap_set.

v3:
  * free bmap
  * all 1's set correctly
  * expand range to 2 long
  * check each possible of offset
  * add a skeleton to test both bitmap_set and bitmap_set_atomic
v2:
  * refine bitmap_set_atomic
  * add a test case

Wei Yang (2):
  bitmap: get last word mask from nr directly
  test-bitmap: add test for bitmap_set

 tests/test-bitmap.c | 55 +++++++++++++++++++++++++++++++++++++++++++++
 util/bitmap.c       |  9 +++-----
 2 files changed, 58 insertions(+), 6 deletions(-)

-- 
2.17.1

[Qemu-devel] [PATCH v3 1/2] bitmap: get last word mask from nr directly

[Wei Yang]

The value left in nr is the number of bits for the last word, which
could be calculate the last word mask directly.

Remove the unnecessary size.

Signed-off-by: Wei Yang <richardw.yang@linux.intel.com>

---
v2: refine bitmap_set_atomic too, suggested from Peter
---
 util/bitmap.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/util/bitmap.c b/util/bitmap.c
index 1753ff7f5b..5b15249796 100644
--- a/util/bitmap.c
+++ b/util/bitmap.c
@@ -160,7 +160,6 @@ int slow_bitmap_andnot(unsigned long *dst, const unsigned long *bitmap1,
 void bitmap_set(unsigned long *map, long start, long nr)
 {
     unsigned long *p = map + BIT_WORD(start);
-    const long size = start + nr;
     int bits_to_set = BITS_PER_LONG - (start % BITS_PER_LONG);
     unsigned long mask_to_set = BITMAP_FIRST_WORD_MASK(start);
 
@@ -174,7 +173,7 @@ void bitmap_set(unsigned long *map, long start, long nr)
         p++;
     }
     if (nr) {
-        mask_to_set &= BITMAP_LAST_WORD_MASK(size);
+        mask_to_set &= BITMAP_LAST_WORD_MASK(nr);
         *p |= mask_to_set;
     }
 }
@@ -182,7 +181,6 @@ void bitmap_set(unsigned long *map, long start, long nr)
 void bitmap_set_atomic(unsigned long *map, long start, long nr)
 {
     unsigned long *p = map + BIT_WORD(start);
-    const long size = start + nr;
     int bits_to_set = BITS_PER_LONG - (start % BITS_PER_LONG);
     unsigned long mask_to_set = BITMAP_FIRST_WORD_MASK(start);
 
@@ -208,7 +206,7 @@ void bitmap_set_atomic(unsigned long *map, long start, long nr)
 
     /* Last word */
     if (nr) {
-        mask_to_set &= BITMAP_LAST_WORD_MASK(size);
+        mask_to_set &= BITMAP_LAST_WORD_MASK(nr);
         atomic_or(p, mask_to_set);
     } else {
         /* If we avoided the full barrier in atomic_or(), issue a
@@ -221,7 +219,6 @@ void bitmap_set_atomic(unsigned long *map, long start, long nr)
 void bitmap_clear(unsigned long *map, long start, long nr)
 {
     unsigned long *p = map + BIT_WORD(start);
-    const long size = start + nr;
     int bits_to_clear = BITS_PER_LONG - (start % BITS_PER_LONG);
     unsigned long mask_to_clear = BITMAP_FIRST_WORD_MASK(start);
 
@@ -235,7 +232,7 @@ void bitmap_clear(unsigned long *map, long start, long nr)
         p++;
     }
     if (nr) {
-        mask_to_clear &= BITMAP_LAST_WORD_MASK(size);
+        mask_to_clear &= BITMAP_LAST_WORD_MASK(nr);
         *p &= ~mask_to_clear;
     }
 }
-- 
2.17.1

Re: [Qemu-devel] [PATCH v3 1/2] bitmap: get last word mask from nr directly

[Wei Yang]

On Thu, Jul 18, 2019 at 09:04:55AM +0800, Wei Yang wrote:
>The value left in nr is the number of bits for the last word, which
>could be calculate the last word mask directly.
>
>Remove the unnecessary size.
>

May I ask why Patch 2 is picked up, but this one is not?

>Signed-off-by: Wei Yang <richardw.yang@linux.intel.com>
>
>---
>v2: refine bitmap_set_atomic too, suggested from Peter
>---
> util/bitmap.c | 9 +++------
> 1 file changed, 3 insertions(+), 6 deletions(-)
>
>diff --git a/util/bitmap.c b/util/bitmap.c
>index 1753ff7f5b..5b15249796 100644
>--- a/util/bitmap.c
>+++ b/util/bitmap.c
>@@ -160,7 +160,6 @@ int slow_bitmap_andnot(unsigned long *dst, const unsigned long *bitmap1,
> void bitmap_set(unsigned long *map, long start, long nr)
> {
>     unsigned long *p = map + BIT_WORD(start);
>-    const long size = start + nr;
>     int bits_to_set = BITS_PER_LONG - (start % BITS_PER_LONG);
>     unsigned long mask_to_set = BITMAP_FIRST_WORD_MASK(start);
> 
>@@ -174,7 +173,7 @@ void bitmap_set(unsigned long *map, long start, long nr)
>         p++;
>     }
>     if (nr) {
>-        mask_to_set &= BITMAP_LAST_WORD_MASK(size);
>+        mask_to_set &= BITMAP_LAST_WORD_MASK(nr);
>         *p |= mask_to_set;
>     }
> }
>@@ -182,7 +181,6 @@ void bitmap_set(unsigned long *map, long start, long nr)
> void bitmap_set_atomic(unsigned long *map, long start, long nr)
> {
>     unsigned long *p = map + BIT_WORD(start);
>-    const long size = start + nr;
>     int bits_to_set = BITS_PER_LONG - (start % BITS_PER_LONG);
>     unsigned long mask_to_set = BITMAP_FIRST_WORD_MASK(start);
> 
>@@ -208,7 +206,7 @@ void bitmap_set_atomic(unsigned long *map, long start, long nr)
> 
>     /* Last word */
>     if (nr) {
>-        mask_to_set &= BITMAP_LAST_WORD_MASK(size);
>+        mask_to_set &= BITMAP_LAST_WORD_MASK(nr);
>         atomic_or(p, mask_to_set);
>     } else {
>         /* If we avoided the full barrier in atomic_or(), issue a
>@@ -221,7 +219,6 @@ void bitmap_set_atomic(unsigned long *map, long start, long nr)
> void bitmap_clear(unsigned long *map, long start, long nr)
> {
>     unsigned long *p = map + BIT_WORD(start);
>-    const long size = start + nr;
>     int bits_to_clear = BITS_PER_LONG - (start % BITS_PER_LONG);
>     unsigned long mask_to_clear = BITMAP_FIRST_WORD_MASK(start);
> 
>@@ -235,7 +232,7 @@ void bitmap_clear(unsigned long *map, long start, long nr)
>         p++;
>     }
>     if (nr) {
>-        mask_to_clear &= BITMAP_LAST_WORD_MASK(size);
>+        mask_to_clear &= BITMAP_LAST_WORD_MASK(nr);
>         *p &= ~mask_to_clear;
>     }
> }
>-- 
>2.17.1
>

-- 
Wei Yang
Help you, Help me

Re: [Qemu-devel] [PATCH v3 1/2] bitmap: get last word mask from nr directly

[Paolo Bonzini]

On 21/07/19 02:33, Wei Yang wrote:
> On Thu, Jul 18, 2019 at 09:04:55AM +0800, Wei Yang wrote:
>> The value left in nr is the number of bits for the last word, which
>> could be calculate the last word mask directly.
>>
>> Remove the unnecessary size.
>>
> 
> May I ask why Patch 2 is picked up, but this one is not?

Tests are always good to have, this cleanup will wait for 4.2 but it's
in the queue.

Paolo

>> Signed-off-by: Wei Yang <richardw.yang@linux.intel.com>
>>
>> ---
>> v2: refine bitmap_set_atomic too, suggested from Peter
>> ---
>> util/bitmap.c | 9 +++------
>> 1 file changed, 3 insertions(+), 6 deletions(-)
>>
>> diff --git a/util/bitmap.c b/util/bitmap.c
>> index 1753ff7f5b..5b15249796 100644
>> --- a/util/bitmap.c
>> +++ b/util/bitmap.c
>> @@ -160,7 +160,6 @@ int slow_bitmap_andnot(unsigned long *dst, const unsigned long *bitmap1,
>> void bitmap_set(unsigned long *map, long start, long nr)
>> {
>>     unsigned long *p = map + BIT_WORD(start);
>> -    const long size = start + nr;
>>     int bits_to_set = BITS_PER_LONG - (start % BITS_PER_LONG);
>>     unsigned long mask_to_set = BITMAP_FIRST_WORD_MASK(start);
>>
>> @@ -174,7 +173,7 @@ void bitmap_set(unsigned long *map, long start, long nr)
>>         p++;
>>     }
>>     if (nr) {
>> -        mask_to_set &= BITMAP_LAST_WORD_MASK(size);
>> +        mask_to_set &= BITMAP_LAST_WORD_MASK(nr);
>>         *p |= mask_to_set;
>>     }
>> }
>> @@ -182,7 +181,6 @@ void bitmap_set(unsigned long *map, long start, long nr)
>> void bitmap_set_atomic(unsigned long *map, long start, long nr)
>> {
>>     unsigned long *p = map + BIT_WORD(start);
>> -    const long size = start + nr;
>>     int bits_to_set = BITS_PER_LONG - (start % BITS_PER_LONG);
>>     unsigned long mask_to_set = BITMAP_FIRST_WORD_MASK(start);
>>
>> @@ -208,7 +206,7 @@ void bitmap_set_atomic(unsigned long *map, long start, long nr)
>>
>>     /* Last word */
>>     if (nr) {
>> -        mask_to_set &= BITMAP_LAST_WORD_MASK(size);
>> +        mask_to_set &= BITMAP_LAST_WORD_MASK(nr);
>>         atomic_or(p, mask_to_set);
>>     } else {
>>         /* If we avoided the full barrier in atomic_or(), issue a
>> @@ -221,7 +219,6 @@ void bitmap_set_atomic(unsigned long *map, long start, long nr)
>> void bitmap_clear(unsigned long *map, long start, long nr)
>> {
>>     unsigned long *p = map + BIT_WORD(start);
>> -    const long size = start + nr;
>>     int bits_to_clear = BITS_PER_LONG - (start % BITS_PER_LONG);
>>     unsigned long mask_to_clear = BITMAP_FIRST_WORD_MASK(start);
>>
>> @@ -235,7 +232,7 @@ void bitmap_clear(unsigned long *map, long start, long nr)
>>         p++;
>>     }
>>     if (nr) {
>> -        mask_to_clear &= BITMAP_LAST_WORD_MASK(size);
>> +        mask_to_clear &= BITMAP_LAST_WORD_MASK(nr);
>>         *p &= ~mask_to_clear;
>>     }
>> }
>> -- 
>> 2.17.1
>>
> 

Re: [Qemu-devel] [PATCH v3 1/2] bitmap: get last word mask from nr directly

[Wei Yang]

On Sun, Jul 21, 2019 at 07:27:14PM +0200, Paolo Bonzini wrote:
>On 21/07/19 02:33, Wei Yang wrote:
>> On Thu, Jul 18, 2019 at 09:04:55AM +0800, Wei Yang wrote:
>>> The value left in nr is the number of bits for the last word, which
>>> could be calculate the last word mask directly.
>>>
>>> Remove the unnecessary size.
>>>
>> 
>> May I ask why Patch 2 is picked up, but this one is not?
>
>Tests are always good to have, this cleanup will wait for 4.2 but it's
>in the queue.
>

Thanks :-)

>Paolo
>
>>> Signed-off-by: Wei Yang <richardw.yang@linux.intel.com>
>>>
>>> ---
>>> v2: refine bitmap_set_atomic too, suggested from Peter
>>> ---
>>> util/bitmap.c | 9 +++------
>>> 1 file changed, 3 insertions(+), 6 deletions(-)
>>>
>>> diff --git a/util/bitmap.c b/util/bitmap.c
>>> index 1753ff7f5b..5b15249796 100644
>>> --- a/util/bitmap.c
>>> +++ b/util/bitmap.c
>>> @@ -160,7 +160,6 @@ int slow_bitmap_andnot(unsigned long *dst, const unsigned long *bitmap1,
>>> void bitmap_set(unsigned long *map, long start, long nr)
>>> {
>>>     unsigned long *p = map + BIT_WORD(start);
>>> -    const long size = start + nr;
>>>     int bits_to_set = BITS_PER_LONG - (start % BITS_PER_LONG);
>>>     unsigned long mask_to_set = BITMAP_FIRST_WORD_MASK(start);
>>>
>>> @@ -174,7 +173,7 @@ void bitmap_set(unsigned long *map, long start, long nr)
>>>         p++;
>>>     }
>>>     if (nr) {
>>> -        mask_to_set &= BITMAP_LAST_WORD_MASK(size);
>>> +        mask_to_set &= BITMAP_LAST_WORD_MASK(nr);
>>>         *p |= mask_to_set;
>>>     }
>>> }
>>> @@ -182,7 +181,6 @@ void bitmap_set(unsigned long *map, long start, long nr)
>>> void bitmap_set_atomic(unsigned long *map, long start, long nr)
>>> {
>>>     unsigned long *p = map + BIT_WORD(start);
>>> -    const long size = start + nr;
>>>     int bits_to_set = BITS_PER_LONG - (start % BITS_PER_LONG);
>>>     unsigned long mask_to_set = BITMAP_FIRST_WORD_MASK(start);
>>>
>>> @@ -208,7 +206,7 @@ void bitmap_set_atomic(unsigned long *map, long start, long nr)
>>>
>>>     /* Last word */
>>>     if (nr) {
>>> -        mask_to_set &= BITMAP_LAST_WORD_MASK(size);
>>> +        mask_to_set &= BITMAP_LAST_WORD_MASK(nr);
>>>         atomic_or(p, mask_to_set);
>>>     } else {
>>>         /* If we avoided the full barrier in atomic_or(), issue a
>>> @@ -221,7 +219,6 @@ void bitmap_set_atomic(unsigned long *map, long start, long nr)
>>> void bitmap_clear(unsigned long *map, long start, long nr)
>>> {
>>>     unsigned long *p = map + BIT_WORD(start);
>>> -    const long size = start + nr;
>>>     int bits_to_clear = BITS_PER_LONG - (start % BITS_PER_LONG);
>>>     unsigned long mask_to_clear = BITMAP_FIRST_WORD_MASK(start);
>>>
>>> @@ -235,7 +232,7 @@ void bitmap_clear(unsigned long *map, long start, long nr)
>>>         p++;
>>>     }
>>>     if (nr) {
>>> -        mask_to_clear &= BITMAP_LAST_WORD_MASK(size);
>>> +        mask_to_clear &= BITMAP_LAST_WORD_MASK(nr);
>>>         *p &= ~mask_to_clear;
>>>     }
>>> }
>>> -- 
>>> 2.17.1
>>>
>> 

-- 
Wei Yang
Help you, Help me

Re: [Qemu-devel] [PATCH v3 1/2] bitmap: get last word mask from nr directly

[Paolo Bonzini]

On 18/07/19 03:04, Wei Yang wrote:
> The value left in nr is the number of bits for the last word, which
> could be calculate the last word mask directly.
> 
> Remove the unnecessary size.

Hi,

the value left in nr is _not_ the number of bits for the last word if
the start and the end are in the same word.  For example, if start %
BITS_PER_LONG was 3 and nr == 1, you'd have:

- before the patch BITMAP_LAST_WORD_MASK(4)

- after the patch BITMAP_LAST_WORD_MASK(1)

Paolo

> Signed-off-by: Wei Yang <richardw.yang@linux.intel.com>
> 
> ---
> v2: refine bitmap_set_atomic too, suggested from Peter
> ---
>  util/bitmap.c | 9 +++------
>  1 file changed, 3 insertions(+), 6 deletions(-)
> 
> diff --git a/util/bitmap.c b/util/bitmap.c
> index 1753ff7f5b..5b15249796 100644
> --- a/util/bitmap.c
> +++ b/util/bitmap.c
> @@ -160,7 +160,6 @@ int slow_bitmap_andnot(unsigned long *dst, const unsigned long *bitmap1,
>  void bitmap_set(unsigned long *map, long start, long nr)
>  {
>      unsigned long *p = map + BIT_WORD(start);
> -    const long size = start + nr;
>      int bits_to_set = BITS_PER_LONG - (start % BITS_PER_LONG);
>      unsigned long mask_to_set = BITMAP_FIRST_WORD_MASK(start);
>  
> @@ -174,7 +173,7 @@ void bitmap_set(unsigned long *map, long start, long nr)
>          p++;
>      }
>      if (nr) {
> -        mask_to_set &= BITMAP_LAST_WORD_MASK(size);
> +        mask_to_set &= BITMAP_LAST_WORD_MASK(nr);
>          *p |= mask_to_set;
>      }
>  }
> @@ -182,7 +181,6 @@ void bitmap_set(unsigned long *map, long start, long nr)
>  void bitmap_set_atomic(unsigned long *map, long start, long nr)
>  {
>      unsigned long *p = map + BIT_WORD(start);
> -    const long size = start + nr;
>      int bits_to_set = BITS_PER_LONG - (start % BITS_PER_LONG);
>      unsigned long mask_to_set = BITMAP_FIRST_WORD_MASK(start);
>  
> @@ -208,7 +206,7 @@ void bitmap_set_atomic(unsigned long *map, long start, long nr)
>  
>      /* Last word */
>      if (nr) {
> -        mask_to_set &= BITMAP_LAST_WORD_MASK(size);
> +        mask_to_set &= BITMAP_LAST_WORD_MASK(nr);
>          atomic_or(p, mask_to_set);
>      } else {
>          /* If we avoided the full barrier in atomic_or(), issue a
> @@ -221,7 +219,6 @@ void bitmap_set_atomic(unsigned long *map, long start, long nr)
>  void bitmap_clear(unsigned long *map, long start, long nr)
>  {
>      unsigned long *p = map + BIT_WORD(start);
> -    const long size = start + nr;
>      int bits_to_clear = BITS_PER_LONG - (start % BITS_PER_LONG);
>      unsigned long mask_to_clear = BITMAP_FIRST_WORD_MASK(start);
>  
> @@ -235,7 +232,7 @@ void bitmap_clear(unsigned long *map, long start, long nr)
>          p++;
>      }
>      if (nr) {
> -        mask_to_clear &= BITMAP_LAST_WORD_MASK(size);
> +        mask_to_clear &= BITMAP_LAST_WORD_MASK(nr);
>          *p &= ~mask_to_clear;
>      }
>  }
> 

Re: [Qemu-devel] [PATCH v3 1/2] bitmap: get last word mask from nr directly

[Wei Yang]

On Mon, Aug 12, 2019 at 06:18:43PM +0200, Paolo Bonzini wrote:
>On 18/07/19 03:04, Wei Yang wrote:
>> The value left in nr is the number of bits for the last word, which
>> could be calculate the last word mask directly.
>> 
>> Remove the unnecessary size.
>
>Hi,
>
>the value left in nr is _not_ the number of bits for the last word if
>the start and the end are in the same word.  For example, if start %
>BITS_PER_LONG was 3 and nr == 1, you'd have:
>
>- before the patch BITMAP_LAST_WORD_MASK(4)
>
>- after the patch BITMAP_LAST_WORD_MASK(1)
>

You are right. I missed this case.

Thanks for pointing out.

>Paolo
>
>> Signed-off-by: Wei Yang <richardw.yang@linux.intel.com>
>> 
>> ---
>> v2: refine bitmap_set_atomic too, suggested from Peter
>> ---
>>  util/bitmap.c | 9 +++------
>>  1 file changed, 3 insertions(+), 6 deletions(-)
>> 
>> diff --git a/util/bitmap.c b/util/bitmap.c
>> index 1753ff7f5b..5b15249796 100644
>> --- a/util/bitmap.c
>> +++ b/util/bitmap.c
>> @@ -160,7 +160,6 @@ int slow_bitmap_andnot(unsigned long *dst, const unsigned long *bitmap1,
>>  void bitmap_set(unsigned long *map, long start, long nr)
>>  {
>>      unsigned long *p = map + BIT_WORD(start);
>> -    const long size = start + nr;
>>      int bits_to_set = BITS_PER_LONG - (start % BITS_PER_LONG);
>>      unsigned long mask_to_set = BITMAP_FIRST_WORD_MASK(start);
>>  
>> @@ -174,7 +173,7 @@ void bitmap_set(unsigned long *map, long start, long nr)
>>          p++;
>>      }
>>      if (nr) {
>> -        mask_to_set &= BITMAP_LAST_WORD_MASK(size);
>> +        mask_to_set &= BITMAP_LAST_WORD_MASK(nr);
>>          *p |= mask_to_set;
>>      }
>>  }
>> @@ -182,7 +181,6 @@ void bitmap_set(unsigned long *map, long start, long nr)
>>  void bitmap_set_atomic(unsigned long *map, long start, long nr)
>>  {
>>      unsigned long *p = map + BIT_WORD(start);
>> -    const long size = start + nr;
>>      int bits_to_set = BITS_PER_LONG - (start % BITS_PER_LONG);
>>      unsigned long mask_to_set = BITMAP_FIRST_WORD_MASK(start);
>>  
>> @@ -208,7 +206,7 @@ void bitmap_set_atomic(unsigned long *map, long start, long nr)
>>  
>>      /* Last word */
>>      if (nr) {
>> -        mask_to_set &= BITMAP_LAST_WORD_MASK(size);
>> +        mask_to_set &= BITMAP_LAST_WORD_MASK(nr);
>>          atomic_or(p, mask_to_set);
>>      } else {
>>          /* If we avoided the full barrier in atomic_or(), issue a
>> @@ -221,7 +219,6 @@ void bitmap_set_atomic(unsigned long *map, long start, long nr)
>>  void bitmap_clear(unsigned long *map, long start, long nr)
>>  {
>>      unsigned long *p = map + BIT_WORD(start);
>> -    const long size = start + nr;
>>      int bits_to_clear = BITS_PER_LONG - (start % BITS_PER_LONG);
>>      unsigned long mask_to_clear = BITMAP_FIRST_WORD_MASK(start);
>>  
>> @@ -235,7 +232,7 @@ void bitmap_clear(unsigned long *map, long start, long nr)
>>          p++;
>>      }
>>      if (nr) {
>> -        mask_to_clear &= BITMAP_LAST_WORD_MASK(size);
>> +        mask_to_clear &= BITMAP_LAST_WORD_MASK(nr);
>>          *p &= ~mask_to_clear;
>>      }
>>  }
>> 
>

-- 
Wei Yang
Help you, Help me

[Qemu-devel] [PATCH v3 2/2] test-bitmap: add test for bitmap_set

[Wei Yang]

Add a test for bitmap_set. There are three cases:

  * Both start and end is BITS_PER_LONG aligned
  * Only start is BITS_PER_LONG aligned
  * Only end is BITS_PER_LONG aligned

Signed-off-by: Wei Yang <richardw.yang@linux.intel.com>

---
v3:
  * free bmap
  * all 1's set correctly
  * expand range to 2 long
  * check each possible of offset
  * add a skeleton to test both bitmap_set and bitmap_set_atomic
---
 tests/test-bitmap.c | 55 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 55 insertions(+)

diff --git a/tests/test-bitmap.c b/tests/test-bitmap.c
index cb7c5e462d..18aa584591 100644
--- a/tests/test-bitmap.c
+++ b/tests/test-bitmap.c
@@ -59,12 +59,67 @@ static void check_bitmap_copy_with_offset(void)
     g_free(bmap3);
 }
 
+typedef void (*bmap_set_func)(unsigned long *map, long i, long len);
+static void bitmap_set_case(bmap_set_func set_func)
+{
+    unsigned long *bmap;
+    int offset;
+
+    bmap = bitmap_new(BMAP_SIZE);
+
+    /* Both Aligned, set bits [BITS_PER_LONG, 3*BITS_PER_LONG] */
+    set_func(bmap, BITS_PER_LONG, 2 * BITS_PER_LONG);
+    g_assert_cmpuint(bmap[1], ==, -1ul);
+    g_assert_cmpuint(bmap[2], ==, -1ul);
+    g_assert_cmpint(find_first_bit(bmap, BITS_PER_LONG), ==, BITS_PER_LONG);
+    g_assert_cmpint(find_next_zero_bit(bmap, 3 * BITS_PER_LONG, BITS_PER_LONG),
+                    ==, 3 * BITS_PER_LONG);
+
+    for (offset = 0; offset <= BITS_PER_LONG; offset++) {
+        bitmap_clear(bmap, 0, BMAP_SIZE);
+        /* End Aligned, set bits [BITS_PER_LONG - offset, 3*BITS_PER_LONG] */
+        set_func(bmap, BITS_PER_LONG - offset, 2 * BITS_PER_LONG + offset);
+        g_assert_cmpuint(bmap[1], ==, -1ul);
+        g_assert_cmpuint(bmap[2], ==, -1ul);
+        g_assert_cmpint(find_first_bit(bmap, BITS_PER_LONG),
+                        ==, BITS_PER_LONG - offset);
+        g_assert_cmpint(find_next_zero_bit(bmap,
+                                           3 * BITS_PER_LONG,
+                                           BITS_PER_LONG - offset),
+                        ==, 3 * BITS_PER_LONG);
+    }
+
+    for (offset = 0; offset <= BITS_PER_LONG; offset++) {
+        bitmap_clear(bmap, 0, BMAP_SIZE);
+        /* Start Aligned, set bits [BITS_PER_LONG, 3*BITS_PER_LONG + offset] */
+        set_func(bmap, BITS_PER_LONG, 2 * BITS_PER_LONG + offset);
+        g_assert_cmpuint(bmap[1], ==, -1ul);
+        g_assert_cmpuint(bmap[2], ==, -1ul);
+        g_assert_cmpint(find_first_bit(bmap, BITS_PER_LONG),
+                        ==, BITS_PER_LONG);
+        g_assert_cmpint(find_next_zero_bit(bmap,
+                                           3 * BITS_PER_LONG + offset,
+                                           BITS_PER_LONG),
+                        ==, 3 * BITS_PER_LONG + offset);
+    }
+
+    g_free(bmap);
+}
+
+static void check_bitmap_set(void)
+{
+    bitmap_set_case(bitmap_set);
+    bitmap_set_case(bitmap_set_atomic);
+}
+
 int main(int argc, char **argv)
 {
     g_test_init(&argc, &argv, NULL);
 
     g_test_add_func("/bitmap/bitmap_copy_with_offset",
                     check_bitmap_copy_with_offset);
+    g_test_add_func("/bitmap/bitmap_set",
+                    check_bitmap_set);
 
     g_test_run();
 
-- 
2.17.1

Re: [Qemu-devel] [PATCH v3 0/2] bitmap: refine bitmap_set

[Peter Xu]

On Thu, Jul 18, 2019 at 09:04:54AM +0800, Wei Yang wrote:
> Patch 1 refine bitmap_set a little.
> Patch 2 add related test case to bitmap_set.
> 
> v3:
>   * free bmap
>   * all 1's set correctly
>   * expand range to 2 long
>   * check each possible of offset
>   * add a skeleton to test both bitmap_set and bitmap_set_atomic

Reviewed-by: Peter Xu <peterx@redhat.com>

-- 
Peter Xu

Re: [Qemu-devel] [PATCH v3 0/2] bitmap: refine bitmap_set

[Paolo Bonzini]

On 18/07/19 03:45, Peter Xu wrote:
> On Thu, Jul 18, 2019 at 09:04:54AM +0800, Wei Yang wrote:
>> Patch 1 refine bitmap_set a little.
>> Patch 2 add related test case to bitmap_set.
>>
>> v3:
>>   * free bmap
>>   * all 1's set correctly
>>   * expand range to 2 long
>>   * check each possible of offset
>>   * add a skeleton to test both bitmap_set and bitmap_set_atomic
> 
> Reviewed-by: Peter Xu <peterx@redhat.com>

Queued for 4.2, thanks.

Paolo

Re: [Qemu-devel] [PATCH v3 0/2] bitmap: refine bitmap_set

[no-reply]

Patchew URL: https://patchew.org/QEMU/20190718010456.4234-1-richardw.yang@linux.intel.com/



Hi,

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

=== TEST SCRIPT BEGIN ===
#!/bin/bash
make docker-image-fedora V=1 NETWORK=1
time make docker-test-debug@fedora TARGET_LIST=x86_64-softmmu J=14 NETWORK=1
=== TEST SCRIPT END ===

PASS 1 fdc-test /x86_64/fdc/cmos
PASS 2 fdc-test /x86_64/fdc/no_media_on_start
PASS 3 fdc-test /x86_64/fdc/read_without_media
==7869==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 4 fdc-test /x86_64/fdc/media_change
PASS 5 fdc-test /x86_64/fdc/sense_interrupt
PASS 6 fdc-test /x86_64/fdc/relative_seek
---
PASS 32 test-opts-visitor /visitor/opts/range/beyond
PASS 33 test-opts-visitor /visitor/opts/dict/unvisited
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-coroutine -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-coroutine" 
==7909==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 1 test-coroutine /basic/no-dangling-access
PASS 2 test-coroutine /basic/lifecycle
PASS 3 test-coroutine /basic/yield
==7909==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7ffd99677000; bottom 0x7f6d5fdf8000; size: 0x00903987f000 (619440500736)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
PASS 4 test-coroutine /basic/nesting
---
PASS 11 test-aio /aio/event/wait
PASS 12 test-aio /aio/event/flush
PASS 13 test-aio /aio/event/wait/no-flush-cb
==7928==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 14 test-aio /aio/timer/schedule
PASS 15 test-aio /aio/coroutine/queue-chaining
PASS 16 test-aio /aio-gsource/flush
---
PASS 28 test-aio /aio-gsource/timer/schedule
PASS 12 fdc-test /x86_64/fdc/read_no_dma_19
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-aio-multithread -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-aio-multithread" 
==7934==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 13 fdc-test /x86_64/fdc/fuzz-registers
PASS 1 test-aio-multithread /aio/multi/lifecycle
PASS 2 test-aio-multithread /aio/multi/schedule
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  QTEST_QEMU_BINARY=x86_64-softmmu/qemu-system-x86_64 QTEST_QEMU_IMG=qemu-img tests/ide-test -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="ide-test" 
==7957==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 3 test-aio-multithread /aio/multi/mutex/contended
PASS 1 ide-test /x86_64/ide/identify
==7968==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 2 ide-test /x86_64/ide/flush
==7974==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 4 test-aio-multithread /aio/multi/mutex/handoff
PASS 3 ide-test /x86_64/ide/bmdma/simple_rw
PASS 5 test-aio-multithread /aio/multi/mutex/mcs
==7985==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 4 ide-test /x86_64/ide/bmdma/trim
PASS 6 test-aio-multithread /aio/multi/mutex/pthread
==7996==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-throttle -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-throttle" 
==8003==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 1 test-throttle /throttle/leak_bucket
PASS 2 test-throttle /throttle/compute_wait
PASS 3 test-throttle /throttle/init
---
PASS 15 test-throttle /throttle/config/iops_size
PASS 5 ide-test /x86_64/ide/bmdma/short_prdt
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-thread-pool -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-thread-pool" 
==8011==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 1 test-thread-pool /thread-pool/submit
PASS 2 test-thread-pool /thread-pool/submit-aio
PASS 3 test-thread-pool /thread-pool/submit-co
PASS 4 test-thread-pool /thread-pool/submit-many
==8009==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 6 ide-test /x86_64/ide/bmdma/one_sector_short_prdt
==8083==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 5 test-thread-pool /thread-pool/cancel
PASS 7 ide-test /x86_64/ide/bmdma/long_prdt
==8089==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==8089==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7ffc46be1000; bottom 0x7fce2d5ba000; size: 0x002e19627000 (197994377216)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
PASS 8 ide-test /x86_64/ide/bmdma/no_busmaster
---
PASS 4 test-hbitmap /hbitmap/iter/empty
PASS 9 ide-test /x86_64/ide/flush/nodev
PASS 5 test-hbitmap /hbitmap/iter/partial
==8105==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 6 test-hbitmap /hbitmap/iter/granularity
PASS 7 test-hbitmap /hbitmap/iter/iter_and_reset
PASS 8 test-hbitmap /hbitmap/get/all
---
PASS 15 test-hbitmap /hbitmap/set/overlap
PASS 16 test-hbitmap /hbitmap/reset/empty
PASS 17 test-hbitmap /hbitmap/reset/general
==8110==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 18 test-hbitmap /hbitmap/reset/all
PASS 19 test-hbitmap /hbitmap/truncate/nop
PASS 20 test-hbitmap /hbitmap/truncate/grow/negligible
---
PASS 29 test-hbitmap /hbitmap/truncate/shrink/large
PASS 30 test-hbitmap /hbitmap/meta/zero
PASS 11 ide-test /x86_64/ide/flush/retry_pci
==8116==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 12 ide-test /x86_64/ide/flush/retry_isa
==8122==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 13 ide-test /x86_64/ide/cdrom/pio
==8128==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 31 test-hbitmap /hbitmap/meta/one
PASS 32 test-hbitmap /hbitmap/meta/byte
PASS 33 test-hbitmap /hbitmap/meta/word
PASS 34 test-hbitmap /hbitmap/meta/sector
PASS 35 test-hbitmap /hbitmap/serialize/align
PASS 14 ide-test /x86_64/ide/cdrom/pio_large
==8134==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 15 ide-test /x86_64/ide/cdrom/dma
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  QTEST_QEMU_BINARY=x86_64-softmmu/qemu-system-x86_64 QTEST_QEMU_IMG=qemu-img tests/ahci-test -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="ahci-test" 
PASS 36 test-hbitmap /hbitmap/serialize/basic
---
PASS 42 test-hbitmap /hbitmap/next_dirty_area/next_dirty_area_1
PASS 43 test-hbitmap /hbitmap/next_dirty_area/next_dirty_area_4
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-bdrv-drain -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-bdrv-drain" 
==8150==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 1 test-bdrv-drain /bdrv-drain/nested
PASS 2 test-bdrv-drain /bdrv-drain/multiparent
PASS 3 test-bdrv-drain /bdrv-drain/set_aio_context
---
PASS 24 test-bdrv-drain /bdrv-drain/blockjob/error/drain_all
PASS 25 test-bdrv-drain /bdrv-drain/blockjob/error/drain
PASS 26 test-bdrv-drain /bdrv-drain/blockjob/error/drain_subtree
==8155==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 27 test-bdrv-drain /bdrv-drain/blockjob/iothread/drain_all
PASS 28 test-bdrv-drain /bdrv-drain/blockjob/iothread/drain
PASS 29 test-bdrv-drain /bdrv-drain/blockjob/iothread/drain_subtree
---
PASS 39 test-bdrv-drain /bdrv-drain/attach/drain
PASS 1 ahci-test /x86_64/ahci/sanity
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-bdrv-graph-mod -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-bdrv-graph-mod" 
==8197==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 1 test-bdrv-graph-mod /bdrv-graph-mod/update-perm-tree
PASS 2 test-bdrv-graph-mod /bdrv-graph-mod/should-update-child
==8195==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-blockjob -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-blockjob" 
==8207==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 1 test-blockjob /blockjob/ids
PASS 2 test-blockjob /blockjob/cancel/created
PASS 3 test-blockjob /blockjob/cancel/running
---
PASS 8 test-blockjob /blockjob/cancel/concluded
PASS 2 ahci-test /x86_64/ahci/pci_spec
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-blockjob-txn -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-blockjob-txn" 
==8213==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 1 test-blockjob-txn /single/success
PASS 2 test-blockjob-txn /single/failure
PASS 3 test-blockjob-txn /single/cancel
---
PASS 5 test-blockjob-txn /pair/failure
PASS 6 test-blockjob-txn /pair/cancel
PASS 7 test-blockjob-txn /pair/fail-cancel-race
==8211==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-block-backend -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-block-backend" 
==8223==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 1 test-block-backend /block-backend/drain_aio_error
PASS 2 test-block-backend /block-backend/drain_all_aio_error
PASS 3 ahci-test /x86_64/ahci/pci_enable
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-block-iothread -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-block-iothread" 
==8229==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 1 test-block-iothread /sync-op/pread
PASS 2 test-block-iothread /sync-op/pwrite
PASS 3 test-block-iothread /sync-op/load_vmstate
---
PASS 14 test-block-iothread /propagate/basic
PASS 15 test-block-iothread /propagate/diamond
PASS 16 test-block-iothread /propagate/mirror
==8227==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-image-locking -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-image-locking" 
==8255==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 1 test-image-locking /image-locking/basic
PASS 2 test-image-locking /image-locking/set-perm-abort
PASS 4 ahci-test /x86_64/ahci/hba_spec
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-x86-cpuid -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-x86-cpuid" 
PASS 1 test-x86-cpuid /cpuid/topology/basic
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-xbzrle -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-xbzrle" 
==8259==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 1 test-xbzrle /xbzrle/uleb
PASS 2 test-xbzrle /xbzrle/encode_decode_zero
PASS 3 test-xbzrle /xbzrle/encode_decode_unchanged
---
PASS 133 test-cutils /cutils/strtosz/erange
PASS 134 test-cutils /cutils/strtosz/metric
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-shift128 -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-shift128" 
==8273==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 1 test-shift128 /host-utils/test_lshift
PASS 2 test-shift128 /host-utils/test_rshift
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-mul64 -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-mul64" 
---
PASS 9 test-int128 /int128/int128_gt
PASS 10 test-int128 /int128/int128_rshift
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/rcutorture -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="rcutorture" 
==8300==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 1 rcutorture /rcu/torture/1reader
PASS 7 ahci-test /x86_64/ahci/max
==8333==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 2 rcutorture /rcu/torture/10readers
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-rcu-list -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-rcu-list" 
PASS 8 ahci-test /x86_64/ahci/reset
PASS 1 test-rcu-list /rcu/qlist/single-threaded
==8346==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==8346==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7ffe36db5000; bottom 0x7f79d63fe000; size: 0x0084609b7000 (568556482560)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
PASS 2 test-rcu-list /rcu/qlist/short-few
PASS 9 ahci-test /x86_64/ahci/io/pio/lba28/simple/zero
==8379==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==8379==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7fff97dd1000; bottom 0x7f97069fe000; size: 0x0068913d3000 (449113305088)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
PASS 10 ahci-test /x86_64/ahci/io/pio/lba28/simple/low
==8385==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 3 test-rcu-list /rcu/qlist/long-many
==8385==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7ffe008fb000; bottom 0x7fc2e75fe000; size: 0x003b192fd000 (253825634304)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-rcu-simpleq -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-rcu-simpleq" 
PASS 11 ahci-test /x86_64/ahci/io/pio/lba28/simple/high
==8398==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 1 test-rcu-simpleq /rcu/qsimpleq/single-threaded
==8398==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7ffcfca99000; bottom 0x7f52ce9fe000; size: 0x00aa2e09b000 (730916827136)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
PASS 12 ahci-test /x86_64/ahci/io/pio/lba28/double/zero
PASS 2 test-rcu-simpleq /rcu/qsimpleq/short-few
==8410==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==8410==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7fffe4bdf000; bottom 0x7fdea39fe000; size: 0x0021411e1000 (142826409984)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
PASS 13 ahci-test /x86_64/ahci/io/pio/lba28/double/low
==8437==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==8437==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7ffe3f3b7000; bottom 0x7fd8765fe000; size: 0x0025c8db9000 (162283622400)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
PASS 14 ahci-test /x86_64/ahci/io/pio/lba28/double/high
PASS 3 test-rcu-simpleq /rcu/qsimpleq/long-many
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-rcu-tailq -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-rcu-tailq" 
==8443==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==8443==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7ffeceaaf000; bottom 0x7f0a9357c000; size: 0x00f43b533000 (1048967327744)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
PASS 1 test-rcu-tailq /rcu/qtailq/single-threaded
PASS 15 ahci-test /x86_64/ahci/io/pio/lba28/long/zero
==8462==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 2 test-rcu-tailq /rcu/qtailq/short-few
==8462==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7ffcf3b22000; bottom 0x7f9a4cb7c000; size: 0x0062a6fa6000 (423708221440)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
PASS 16 ahci-test /x86_64/ahci/io/pio/lba28/long/low
==8489==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==8489==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7ffc44ee6000; bottom 0x7f6d943fe000; size: 0x008eb0ae8000 (612849582080)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
PASS 3 test-rcu-tailq /rcu/qtailq/long-many
---
PASS 8 test-qdist /qdist/binning/shrink
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-qht -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-qht" 
PASS 17 ahci-test /x86_64/ahci/io/pio/lba28/long/high
==8504==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 18 ahci-test /x86_64/ahci/io/pio/lba28/short/zero
==8510==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 19 ahci-test /x86_64/ahci/io/pio/lba28/short/low
==8516==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 20 ahci-test /x86_64/ahci/io/pio/lba28/short/high
==8522==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==8522==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7ffd9fbe0000; bottom 0x7f40457fe000; size: 0x00bd5a3e2000 (813262839808)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
PASS 21 ahci-test /x86_64/ahci/io/pio/lba48/simple/zero
==8528==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==8528==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7ffcdf3eb000; bottom 0x7fc9191fe000; size: 0x0033c61ed000 (222367240192)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
PASS 22 ahci-test /x86_64/ahci/io/pio/lba48/simple/low
==8534==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==8534==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7ffd02636000; bottom 0x7f22649fe000; size: 0x00da9dc38000 (938949705728)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
PASS 23 ahci-test /x86_64/ahci/io/pio/lba48/simple/high
==8540==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==8540==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7fff4fd71000; bottom 0x7f99cfbfe000; size: 0x006580173000 (435940700160)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
PASS 24 ahci-test /x86_64/ahci/io/pio/lba48/double/zero
==8546==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==8546==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7ffda3d4b000; bottom 0x7f34921fe000; size: 0x00c911b4d000 (863585488896)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
PASS 25 ahci-test /x86_64/ahci/io/pio/lba48/double/low
==8552==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==8552==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7ffd3b19a000; bottom 0x7f47c7ffe000; size: 0x00b57319c000 (779320147968)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
PASS 26 ahci-test /x86_64/ahci/io/pio/lba48/double/high
==8558==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==8558==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7fff3b5f4000; bottom 0x7f9861b24000; size: 0x0066d9ad0000 (441738657792)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
PASS 27 ahci-test /x86_64/ahci/io/pio/lba48/long/zero
PASS 1 test-qht /qht/mode/default
PASS 2 test-qht /qht/mode/resize
==8564==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-qht-par -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-qht-par" 
==8564==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7ffc6a655000; bottom 0x7fcd04ffe000; size: 0x002f65657000 (203564609536)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
PASS 1 test-qht-par /qht/parallel/2threads-0%updates-1s
PASS 28 ahci-test /x86_64/ahci/io/pio/lba48/long/low
==8584==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==8584==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7ffc81c73000; bottom 0x7f342317c000; size: 0x00c85eaf7000 (860582014976)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
PASS 2 test-qht-par /qht/parallel/2threads-20%updates-1s
---
PASS 2 test-qdev-global-props /qdev/properties/static/global
PASS 3 test-qdev-global-props /qdev/properties/dynamic/global
PASS 4 test-qdev-global-props /qdev/properties/global/subclass
==8603==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/check-qom-interface -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="check-qom-interface" 
PASS 1 check-qom-interface /qom/interface/direct_impl
PASS 2 check-qom-interface /qom/interface/intermediate_impl
---
PASS 9 test-keyval /keyval/visit/alternate
PASS 10 test-keyval /keyval/visit/any
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-write-threshold -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-write-threshold" 
==8636==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 1 test-write-threshold /write-threshold/not-set-on-init
PASS 2 test-write-threshold /write-threshold/set-get
PASS 3 test-write-threshold /write-threshold/multi-set-get
---
PASS 27 test-crypto-cipher /crypto/cipher/null-iv
PASS 28 test-crypto-cipher /crypto/cipher/short-plaintext
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-crypto-secret -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-crypto-secret" 
==8657==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 1 test-crypto-secret /crypto/secret/direct
PASS 2 test-crypto-secret /crypto/secret/indirect/good
PASS 3 test-crypto-secret /crypto/secret/indirect/badfile
---
PASS 16 test-crypto-secret /crypto/secret/crypt/badiv
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-crypto-tlscredsx509 -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-crypto-tlscredsx509" 
PASS 32 ahci-test /x86_64/ahci/io/pio/lba48/short/high
==8677==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 33 ahci-test /x86_64/ahci/io/dma/lba28/fragmented
PASS 1 test-crypto-tlscredsx509 /qcrypto/tlscredsx509/perfectserver
PASS 2 test-crypto-tlscredsx509 /qcrypto/tlscredsx509/perfectclient
==8683==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 3 test-crypto-tlscredsx509 /qcrypto/tlscredsx509/goodca1
PASS 34 ahci-test /x86_64/ahci/io/dma/lba28/retry
PASS 4 test-crypto-tlscredsx509 /qcrypto/tlscredsx509/goodca2
==8689==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 5 test-crypto-tlscredsx509 /qcrypto/tlscredsx509/goodca3
PASS 6 test-crypto-tlscredsx509 /qcrypto/tlscredsx509/badca1
PASS 7 test-crypto-tlscredsx509 /qcrypto/tlscredsx509/badca2
---
PASS 9 test-crypto-tlscredsx509 /qcrypto/tlscredsx509/goodserver1
PASS 35 ahci-test /x86_64/ahci/io/dma/lba28/simple/zero
PASS 10 test-crypto-tlscredsx509 /qcrypto/tlscredsx509/goodserver2
==8695==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 11 test-crypto-tlscredsx509 /qcrypto/tlscredsx509/goodserver3
PASS 12 test-crypto-tlscredsx509 /qcrypto/tlscredsx509/goodserver4
PASS 36 ahci-test /x86_64/ahci/io/dma/lba28/simple/low
PASS 13 test-crypto-tlscredsx509 /qcrypto/tlscredsx509/goodserver5
PASS 14 test-crypto-tlscredsx509 /qcrypto/tlscredsx509/goodserver6
==8701==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 15 test-crypto-tlscredsx509 /qcrypto/tlscredsx509/goodserver7
PASS 16 test-crypto-tlscredsx509 /qcrypto/tlscredsx509/badserver1
PASS 17 test-crypto-tlscredsx509 /qcrypto/tlscredsx509/badserver2
---
PASS 39 test-crypto-tlscredsx509 /qcrypto/tlscredsx509/missingclient
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-crypto-tlssession -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-crypto-tlssession" 
PASS 37 ahci-test /x86_64/ahci/io/dma/lba28/simple/high
==8712==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 1 test-crypto-tlssession /qcrypto/tlssession/psk
PASS 38 ahci-test /x86_64/ahci/io/dma/lba28/double/zero
PASS 2 test-crypto-tlssession /qcrypto/tlssession/basicca
==8718==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 3 test-crypto-tlssession /qcrypto/tlssession/differentca
PASS 39 ahci-test /x86_64/ahci/io/dma/lba28/double/low
==8724==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 4 test-crypto-tlssession /qcrypto/tlssession/altname1
PASS 40 ahci-test /x86_64/ahci/io/dma/lba28/double/high
PASS 5 test-crypto-tlssession /qcrypto/tlssession/altname2
==8730==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 41 ahci-test /x86_64/ahci/io/dma/lba28/long/zero
PASS 6 test-crypto-tlssession /qcrypto/tlssession/altname3
==8736==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 7 test-crypto-tlssession /qcrypto/tlssession/altname4
PASS 42 ahci-test /x86_64/ahci/io/dma/lba28/long/low
PASS 8 test-crypto-tlssession /qcrypto/tlssession/altname5
==8742==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 9 test-crypto-tlssession /qcrypto/tlssession/altname6
PASS 10 test-crypto-tlssession /qcrypto/tlssession/wildcard1
PASS 43 ahci-test /x86_64/ahci/io/dma/lba28/long/high
PASS 11 test-crypto-tlssession /qcrypto/tlssession/wildcard2
==8749==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 12 test-crypto-tlssession /qcrypto/tlssession/wildcard3
PASS 44 ahci-test /x86_64/ahci/io/dma/lba28/short/zero
==8755==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 13 test-crypto-tlssession /qcrypto/tlssession/wildcard4
PASS 45 ahci-test /x86_64/ahci/io/dma/lba28/short/low
==8761==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 46 ahci-test /x86_64/ahci/io/dma/lba28/short/high
PASS 14 test-crypto-tlssession /qcrypto/tlssession/wildcard5
==8767==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 47 ahci-test /x86_64/ahci/io/dma/lba48/simple/zero
PASS 15 test-crypto-tlssession /qcrypto/tlssession/wildcard6
==8773==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 16 test-crypto-tlssession /qcrypto/tlssession/cachain
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-qga -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-qga" 
PASS 48 ahci-test /x86_64/ahci/io/dma/lba48/simple/low
==8785==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 1 test-qga /qga/sync-delimited
PASS 2 test-qga /qga/sync
PASS 3 test-qga /qga/ping
---
PASS 16 test-qga /qga/invalid-args
PASS 17 test-qga /qga/fsfreeze-status
PASS 49 ahci-test /x86_64/ahci/io/dma/lba48/simple/high
==8792==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 18 test-qga /qga/blacklist
PASS 19 test-qga /qga/config
PASS 20 test-qga /qga/guest-exec
PASS 21 test-qga /qga/guest-exec-invalid
PASS 50 ahci-test /x86_64/ahci/io/dma/lba48/double/zero
==8805==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 22 test-qga /qga/guest-get-osinfo
PASS 23 test-qga /qga/guest-get-host-name
PASS 24 test-qga /qga/guest-get-timezone
---
PASS 7 test-util-sockets /socket/fd-pass/num/bad
PASS 8 test-util-sockets /socket/fd-pass/num/nocli
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-authz-simple -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-authz-simple" 
==8824==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 1 test-authz-simple /authz/simple
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-authz-list -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-authz-list" 
PASS 1 test-authz-list /auth/list/complex
---
PASS 4 test-io-channel-file /io/channel/pipe/sync
PASS 5 test-io-channel-file /io/channel/pipe/async
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-io-channel-tls -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-io-channel-tls" 
==8871==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 1 test-io-channel-tls /qio/channel/tls/basic
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-io-channel-command -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-io-channel-command" 
PASS 53 ahci-test /x86_64/ahci/io/dma/lba48/long/zero
---
PASS 3 test-base64 /util/base64/not-nul-terminated
PASS 4 test-base64 /util/base64/invalid-chars
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-crypto-pbkdf -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-crypto-pbkdf" 
==8927==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 1 test-crypto-pbkdf /crypto/pbkdf/rfc3962/sha1/iter1
PASS 2 test-crypto-pbkdf /crypto/pbkdf/rfc3962/sha1/iter2
PASS 3 test-crypto-pbkdf /crypto/pbkdf/rfc3962/sha1/iter1200a
---
PASS 1 test-logging /logging/parse_range
PASS 2 test-logging /logging/parse_path
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-replication -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-replication" 
==8967==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==8973==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 1 test-replication /replication/primary/read
PASS 2 test-replication /replication/primary/write
PASS 55 ahci-test /x86_64/ahci/io/dma/lba48/long/high
PASS 3 test-replication /replication/primary/start
PASS 4 test-replication /replication/primary/stop
==8982==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 5 test-replication /replication/primary/do_checkpoint
PASS 6 test-replication /replication/primary/get_error_all
PASS 56 ahci-test /x86_64/ahci/io/dma/lba48/short/zero
PASS 7 test-replication /replication/secondary/read
==8988==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 8 test-replication /replication/secondary/write
PASS 57 ahci-test /x86_64/ahci/io/dma/lba48/short/low
==8994==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 58 ahci-test /x86_64/ahci/io/dma/lba48/short/high
==8973==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7ffcdd310000; bottom 0x7f57efbfc000; size: 0x00a4ed714000 (708358258688)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
==9000==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 9 test-replication /replication/secondary/start
PASS 59 ahci-test /x86_64/ahci/io/ncq/simple
==9029==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 60 ahci-test /x86_64/ahci/io/ncq/retry
PASS 10 test-replication /replication/secondary/stop
==9035==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 61 ahci-test /x86_64/ahci/flush/simple
==9041==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 11 test-replication /replication/secondary/do_checkpoint
PASS 62 ahci-test /x86_64/ahci/flush/retry
PASS 12 test-replication /replication/secondary/get_error_all
==9047==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-bufferiszero -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-bufferiszero" 
==9053==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 63 ahci-test /x86_64/ahci/flush/migrate
==9065==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==9070==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 64 ahci-test /x86_64/ahci/migrate/sanity
==9079==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==9084==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 65 ahci-test /x86_64/ahci/migrate/dma/simple
==9093==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==9098==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 66 ahci-test /x86_64/ahci/migrate/dma/halted
==9107==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==9112==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 67 ahci-test /x86_64/ahci/migrate/ncq/simple
==9121==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==9126==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 68 ahci-test /x86_64/ahci/migrate/ncq/halted
==9135==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 69 ahci-test /x86_64/ahci/cdrom/eject
==9140==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 70 ahci-test /x86_64/ahci/cdrom/dma/single
==9146==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 71 ahci-test /x86_64/ahci/cdrom/dma/multi
==9152==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 1 test-bufferiszero /cutils/bufferiszero
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-uuid -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-uuid" 
PASS 72 ahci-test /x86_64/ahci/cdrom/pio/single
---
PASS 527 ptimer-test /ptimer/periodic_with_load_0 policy=wrap_after_one_period,continuous_trigger,no_immediate_reload,no_counter_rounddown,trigger_only_on_decrement,
PASS 528 ptimer-test /ptimer/oneshot_with_load_0 policy=wrap_after_one_period,continuous_trigger,no_immediate_reload,no_counter_rounddown,trigger_only_on_decrement,
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-qapi-util -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-qapi-util" 
==9163==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==9163==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7ffc025bb000; bottom 0x7fe2723cc000; size: 0x0019901ef000 (109792129024)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
PASS 1 test-qapi-util /qapi/util/qapi_enum_parse
---
PASS 22 test-qgraph /qgraph/test_test_in_path
PASS 23 test-qgraph /qgraph/test_double_edge
PASS 73 ahci-test /x86_64/ahci/cdrom/pio/multi
==9181==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 74 ahci-test /x86_64/ahci/cdrom/pio/bcl
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  QTEST_QEMU_BINARY=x86_64-softmmu/qemu-system-x86_64 QTEST_QEMU_IMG=qemu-img tests/hd-geo-test -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="hd-geo-test" 
PASS 1 hd-geo-test /x86_64/hd-geo/ide/none
==9195==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 2 hd-geo-test /x86_64/hd-geo/ide/drive/cd_0
==9201==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 3 hd-geo-test /x86_64/hd-geo/ide/drive/mbr/blank
==9207==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 4 hd-geo-test /x86_64/hd-geo/ide/drive/mbr/lba
==9213==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 5 hd-geo-test /x86_64/hd-geo/ide/drive/mbr/chs
==9219==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 6 hd-geo-test /x86_64/hd-geo/ide/device/mbr/blank
==9225==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 7 hd-geo-test /x86_64/hd-geo/ide/device/mbr/lba
==9231==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 8 hd-geo-test /x86_64/hd-geo/ide/device/mbr/chs
==9237==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 9 hd-geo-test /x86_64/hd-geo/ide/device/user/chs
==9242==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 10 hd-geo-test /x86_64/hd-geo/ide/device/user/chst
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  QTEST_QEMU_BINARY=x86_64-softmmu/qemu-system-x86_64 QTEST_QEMU_IMG=qemu-img tests/boot-order-test -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="boot-order-test" 
PASS 1 boot-order-test /x86_64/boot-order/pc
---
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==9310==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!

Looking for expected file 'tests/data/acpi/pc/FACP'
Using expected file 'tests/data/acpi/pc/FACP'
---
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==9316==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!

Looking for expected file 'tests/data/acpi/q35/FACP'
Using expected file 'tests/data/acpi/q35/FACP'
---
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==9322==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!

Looking for expected file 'tests/data/acpi/pc/FACP.bridge'
Looking for expected file 'tests/data/acpi/pc/FACP'
---
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==9328==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!

Looking for expected file 'tests/data/acpi/pc/FACP.ipmikcs'
Looking for expected file 'tests/data/acpi/pc/FACP'
---
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==9334==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!

Looking for expected file 'tests/data/acpi/pc/FACP.cphp'
Looking for expected file 'tests/data/acpi/pc/FACP'
---
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==9341==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!

Looking for expected file 'tests/data/acpi/pc/FACP.memhp'
Looking for expected file 'tests/data/acpi/pc/FACP'
---
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==9347==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!

Looking for expected file 'tests/data/acpi/pc/FACP.numamem'
Looking for expected file 'tests/data/acpi/pc/FACP'
---
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==9353==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!

Looking for expected file 'tests/data/acpi/pc/FACP.dimmpxm'
Looking for expected file 'tests/data/acpi/pc/FACP'
---
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==9362==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!

Looking for expected file 'tests/data/acpi/q35/FACP.bridge'
Looking for expected file 'tests/data/acpi/q35/FACP'
---
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==9368==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!

Looking for expected file 'tests/data/acpi/q35/FACP.mmio64'
Looking for expected file 'tests/data/acpi/q35/FACP'
---
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==9374==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!

Looking for expected file 'tests/data/acpi/q35/FACP.ipmibt'
Looking for expected file 'tests/data/acpi/q35/FACP'
---
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==9380==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!

Looking for expected file 'tests/data/acpi/q35/FACP.cphp'
Looking for expected file 'tests/data/acpi/q35/FACP'
---
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==9387==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!

Looking for expected file 'tests/data/acpi/q35/FACP.memhp'
Looking for expected file 'tests/data/acpi/q35/FACP'
---
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==9393==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!

Looking for expected file 'tests/data/acpi/q35/FACP.numamem'
Looking for expected file 'tests/data/acpi/q35/FACP'
---
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==9399==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!

Looking for expected file 'tests/data/acpi/q35/FACP.dimmpxm'
Looking for expected file 'tests/data/acpi/q35/FACP'
---
PASS 1 i440fx-test /x86_64/i440fx/defaults
PASS 2 i440fx-test /x86_64/i440fx/pam
PASS 3 i440fx-test /x86_64/i440fx/firmware/bios
==9483==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 4 i440fx-test /x86_64/i440fx/firmware/pflash
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  QTEST_QEMU_BINARY=x86_64-softmmu/qemu-system-x86_64 QTEST_QEMU_IMG=qemu-img tests/fw_cfg-test -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="fw_cfg-test" 
PASS 1 fw_cfg-test /x86_64/fw_cfg/signature
---
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  QTEST_QEMU_BINARY=x86_64-softmmu/qemu-system-x86_64 QTEST_QEMU_IMG=qemu-img tests/drive_del-test -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="drive_del-test" 
PASS 1 drive_del-test /x86_64/drive_del/without-dev
PASS 2 drive_del-test /x86_64/drive_del/after_failed_device_add
==9571==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 3 drive_del-test /x86_64/blockdev/drive_del_device_del
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  QTEST_QEMU_BINARY=x86_64-softmmu/qemu-system-x86_64 QTEST_QEMU_IMG=qemu-img tests/wdt_ib700-test -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="wdt_ib700-test" 
PASS 1 wdt_ib700-test /x86_64/wdt_ib700/pause
---
PASS 1 usb-hcd-uhci-test /x86_64/uhci/pci/init
PASS 2 usb-hcd-uhci-test /x86_64/uhci/pci/port1
PASS 3 usb-hcd-uhci-test /x86_64/uhci/pci/hotplug
==9766==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 4 usb-hcd-uhci-test /x86_64/uhci/pci/hotplug/usb-storage
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  QTEST_QEMU_BINARY=x86_64-softmmu/qemu-system-x86_64 QTEST_QEMU_IMG=qemu-img tests/usb-hcd-xhci-test -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="usb-hcd-xhci-test" 
PASS 1 usb-hcd-xhci-test /x86_64/xhci/pci/init
PASS 2 usb-hcd-xhci-test /x86_64/xhci/pci/hotplug
==9775==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 3 usb-hcd-xhci-test /x86_64/xhci/pci/hotplug/usb-uas
PASS 4 usb-hcd-xhci-test /x86_64/xhci/pci/hotplug/usb-ccid
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  QTEST_QEMU_BINARY=x86_64-softmmu/qemu-system-x86_64 QTEST_QEMU_IMG=qemu-img tests/cpu-plug-test -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="cpu-plug-test" 
---
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==9881==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 1 vmgenid-test /x86_64/vmgenid/vmgenid/set-guid
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==9887==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 2 vmgenid-test /x86_64/vmgenid/vmgenid/set-guid-auto
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==9893==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 3 vmgenid-test /x86_64/vmgenid/vmgenid/query-monitor
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  QTEST_QEMU_BINARY=x86_64-softmmu/qemu-system-x86_64 QTEST_QEMU_IMG=qemu-img tests/tpm-crb-swtpm-test -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="tpm-crb-swtpm-test" 
SKIP 1 tpm-crb-swtpm-test /x86_64/tpm/crb-swtpm/test # SKIP swtpm not in PATH or missing --tpm2 support
---
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==9998==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==10003==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
Memory content inconsistency at 115000 first_byte = 3 last_byte = 2 current = 3 hit_edge = 1
Memory content inconsistency at 116000 first_byte = 3 last_byte = 2 current = 3 hit_edge = 1
Memory content inconsistency at 117000 first_byte = 3 last_byte = 2 current = 3 hit_edge = 1
---
Memory content inconsistency at 63fe000 first_byte = 3 last_byte = 2 current = 1 hit_edge = 1
Memory content inconsistency at 63ff000 first_byte = 3 last_byte = 2 current = 1 hit_edge = 1
**
ERROR:/tmp/qemu-test/src/tests/migration-test.c:338:check_guests_ram: 'bad' should be FALSE
ERROR - Bail out! ERROR:/tmp/qemu-test/src/tests/migration-test.c:338:check_guests_ram: 'bad' should be FALSE
make: *** [/tmp/qemu-test/src/tests/Makefile.include:899: check-qtest-x86_64] Error 1
make: *** Waiting for unfinished jobs....
Traceback (most recent call last):


The full log is available at
http://patchew.org/logs/20190718010456.4234-1-richardw.yang@linux.intel.com/testing.asan/?type=message.
---
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