[OE-core][PATCH] gobject-introspection: reserve less memory for qemu

[OE-core][PATCH] gobject-introspection: reserve less memory for qemu

[Chen Qi]

By default, qemu reserves 4G virtual address. It's too large.
We've met error due to lack of memory even on a 32G build machine.

So change it to 512M to mitigate this problem.

Signed-off-by: Chen Qi <Qi.Chen@windriver.com>
---
 .../gobject-introspection/gobject-introspection_1.66.1.bb        | 1 +
 1 file changed, 1 insertion(+)

diff --git a/meta/recipes-gnome/gobject-introspection/gobject-introspection_1.66.1.bb b/meta/recipes-gnome/gobject-introspection/gobject-introspection_1.66.1.bb
index ee0ab2866b..6c49fe31ba 100644
--- a/meta/recipes-gnome/gobject-introspection/gobject-introspection_1.66.1.bb
+++ b/meta/recipes-gnome/gobject-introspection/gobject-introspection_1.66.1.bb
@@ -36,6 +36,7 @@ DEPENDS_append = " libffi zlib glib-2.0 python3 flex-native bison-native autocon
 # Also prelink-rtld is used to find out library dependencies of introspection binaries
 # (standard ldd doesn't work when cross-compiling).
 DEPENDS_class-target_append = " gobject-introspection-native qemu-native prelink-native"
+QEMU_OPTIONS_append = " -R 512M"
 
 # needed for writing out the qemu wrapper script
 export STAGING_DIR_HOST
-- 
2.17.1

Re: [OE-core][PATCH] gobject-introspection: reserve less memory for qemu

[Richard Purdie]

On Fri, 2021-01-22 at 12:44 +0800, Chen Qi wrote:
> By default, qemu reserves 4G virtual address. It's too large.
> We've met error due to lack of memory even on a 32G build machine.
> 
> So change it to 512M to mitigate this problem.
> 
> Signed-off-by: Chen Qi <Qi.Chen@windriver.com>
> ---
>  .../gobject-introspection/gobject-introspection_1.66.1.bb        | 1 +
>  1 file changed, 1 insertion(+)

Are you sure its out of memory?

Its only taking virtual addresses, it shouldn't actually be allocating
it all.

We did notice that on some of our autobuilder workers we had to change
mmap_min_addr setting being too 65536 which solved out "out of memory"
issues.

Cheers,

Richard

Re: [OE-core][PATCH] gobject-introspection: reserve less memory for qemu

[Chen Qi]

On 01/22/2021 03:55 PM, Richard Purdie wrote:
> On Fri, 2021-01-22 at 12:44 +0800, Chen Qi wrote:
>> By default, qemu reserves 4G virtual address. It's too large.
>> We've met error due to lack of memory even on a 32G build machine.
>>
>> So change it to 512M to mitigate this problem.
>>
>> Signed-off-by: Chen Qi <Qi.Chen@windriver.com>
>> ---
>>   .../gobject-introspection/gobject-introspection_1.66.1.bb        | 1 +
>>   1 file changed, 1 insertion(+)
> Are you sure its out of memory?
>
> Its only taking virtual addresses, it shouldn't actually be allocating
> it all.
>
> We did notice that on some of our autobuilder workers we had to change
> mmap_min_addr setting being too 65536 which solved out "out of memory"
> issues.
>
> Cheers,
>
> Richard
>
>
Thanks. I checked the server, the value is 4096. I've changed it to 65536.

Best Regards,

Chen Qi