Re: [OE-core] [PATCH 01/31] core-image-weston: bump QB_MEM to 1G in qemuarm64

["Alexander Kanavin" <alex.kanavin@gmail.com>]

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Right, I'll adjust to a PACKAGECONFIG. ARM folks should investigate what
looks like a copy-on-write breakage.

Alex

On Sat, 19 Jun 2021 at 00:14, Khem Raj <raj.khem@gmail.com> wrote:

> 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
> >>>>
> >>>>
> >>>>
> >>>>
> >>>
> >>>
> >>>
> >>
> >> 
> >>
>

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