I think we should disable this by default, its a good feature during
development though to catch memory bugs. So please turn it into a
PACKAGECONFIG which is disabled
by default instead of revert.

On Fri, Jun 18, 2021 at 1:49 PM Alexander Kanavin
<alex.kanavin@gmail.com> wrote:
>
> Sadly, I can confirm: weston swelling to double size on qemuarm64 is caused by this recent change in glibc:
>
> +EXTRA_OECONF_append_aarch64 = " --enable-memory-tagging"
>
> You can verify with this innocent looking program. Run 'free' while it is running and compare with and without tagging:
>
> main()
> {
>    for (int i=0; i<768; i++)
>        calloc(1,262368);
>    sleep(200);
> }
>
> I'll queue a revert.
>
> Alex
>
> On Wed, 16 Jun 2021 at 16:08, Alexander Kanavin via lists.openembedded.org <alex.kanavin=gmail.com@lists.openembedded.org> wrote:
>>
>> It seems that mesa, for some reason, allocates a lot more RAM in qemuarm64 (150 Mb more or so), than it does in qemux86_64. I'll investigate.
>>
>> Alex
>>
>> On Wed, 16 Jun 2021 at 12:06, Alexander Kanavin via lists.openembedded.org <alex.kanavin=gmail.com@lists.openembedded.org> wrote:
>>>
>>> I'd like to take a deeper look at this, please hold.
>>>
>>> Alex
>>>
>>> On Tue, 15 Jun 2021 at 10:12, Alexander Kanavin via lists.openembedded.org <alex.kanavin=gmail.com@lists.openembedded.org> wrote:
>>>>
>>>> weston tests start additional compositors, other tests are also
>>>> heavy on RAM, weston itself takes 256M with opengl enabled,
>>>> so 512M causes OOM errors on arm64.
>>>>
>>>> Signed-off-by: Alexander Kanavin <alex.kanavin@gmail.com>
>>>> ---
>>>>  meta/recipes-graphics/images/core-image-weston.bb | 1 +
>>>>  1 file changed, 1 insertion(+)
>>>>
>>>> diff --git a/meta/recipes-graphics/images/core-image-weston.bb b/meta/recipes-graphics/images/core-image-weston.bb
>>>> index 62305cc1ce..e332e19368 100644
>>>> --- a/meta/recipes-graphics/images/core-image-weston.bb
>>>> +++ b/meta/recipes-graphics/images/core-image-weston.bb
>>>> @@ -10,3 +10,4 @@ CORE_IMAGE_BASE_INSTALL += "gtk+3-demo"
>>>>  CORE_IMAGE_BASE_INSTALL += "${@bb.utils.contains('DISTRO_FEATURES', 'x11', 'weston-xwayland matchbox-terminal', '', d)}"
>>>>
>>>>  QB_MEM = "-m 512"
>>>> +QB_MEM_qemuarm64 = "-m 1024"
>>>> --
>>>> 2.31.1
>>>>
>>>>
>>>>
>>>>
>>>
>>>
>>>
>>
>>
>>