Incorrect startup warning on ARM targets

Incorrect startup warning on ARM targets

[Gary Thomas]

When building for an ARM target, you may see this error:
   /proc/sys/vm/mmap_min_addr is not <= 65536. This will cause problems with qemu so please fix the value (as root)

This is a show-stopper; bitbake refuses to run until it's fixed.
However, I don't believe it is useful or required any longer.  From
my understanding, it was there in the past because QEMU for ARM didn't
work correctly unless this system parameter was set as indicated.  That
was when QEMU was being used during the build to create localization
data.  This is no longer being done and QEMU is not used during the
build process.

Perhaps we could eliminate this warning or make it conditional
somehow?  As is, asking the user to make a system-wide setting
as root for something that's not necessary seems wrong.

-- 
------------------------------------------------------------
Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
------------------------------------------------------------

Re: Incorrect startup warning on ARM targets

[Khem Raj]

On (03/05/11 16:07), Gary Thomas wrote:
> When building for an ARM target, you may see this error:
>   /proc/sys/vm/mmap_min_addr is not <= 65536. This will cause problems with qemu so please fix the value (as root)
> 
> This is a show-stopper; bitbake refuses to run until it's fixed.
> However, I don't believe it is useful or required any longer.  From
> my understanding, it was there in the past because QEMU for ARM didn't
> work correctly unless this system parameter was set as indicated.  That
> was when QEMU was being used during the build to create localization
> data.  This is no longer being done and QEMU is not used during the
> build process.
> 
> Perhaps we could eliminate this warning or make it conditional
> somehow?  As is, asking the user to make a system-wide setting
> as root for something that's not necessary seems wrong.

This warning is taken care of in qemu-native we build. But I think its
already fixed in upstream oe-core

> 
> -- 
> ------------------------------------------------------------
> Gary Thomas                 |  Consulting for the
> MLB Associates              |    Embedded world
> ------------------------------------------------------------
> _______________________________________________
> poky mailing list
> poky@yoctoproject.org
> https://lists.yoctoproject.org/listinfo/poky

-- 
-Khem

Re: Incorrect startup warning on ARM targets

[Gary Thomas]

On 05/03/2011 05:12 PM, Khem Raj wrote:
> On (03/05/11 16:07), Gary Thomas wrote:
>> When building for an ARM target, you may see this error:
>>    /proc/sys/vm/mmap_min_addr is not<= 65536. This will cause problems with qemu so please fix the value (as root)
>>
>> This is a show-stopper; bitbake refuses to run until it's fixed.
>> However, I don't believe it is useful or required any longer.  From
>> my understanding, it was there in the past because QEMU for ARM didn't
>> work correctly unless this system parameter was set as indicated.  That
>> was when QEMU was being used during the build to create localization
>> data.  This is no longer being done and QEMU is not used during the
>> build process.
>>
>> Perhaps we could eliminate this warning or make it conditional
>> somehow?  As is, asking the user to make a system-wide setting
>> as root for something that's not necessary seems wrong.
>
> This warning is taken care of in qemu-native we build. But I think its
> already fixed in upstream oe-core

It's still in the Poky tree (sanity.bbclass) which is what I'm asking about.

-- 
------------------------------------------------------------
Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
------------------------------------------------------------