[Buildroot] Make 4.3 and printvars

[Buildroot] Make 4.3 and printvars

[Arnout Vandecappelle]

  Sending this in name of Jean-Pierre, who is not on the list.

> Hello,
> 
> A quick mail to let you know that I also faced the make 4.3 printvars issue you mentioned in Buildroot mailing list.
> 
> On my side increasing the stack size limit as follow:
> 
> ulimit -s 16000
> 
> solved this issue.
> 
> Regards.


  I tested it myself and indeed, it works!

  It would be great if someone could hack this into the Makefile itself (so that 
it recurses if ulimit -s is not high enough) and revert 25cec5ea733251.

  Regards,
  Arnout

_______________________________________________
buildroot mailing list
buildroot@buildroot.org
https://lists.buildroot.org/mailman/listinfo/buildroot

Re: [Buildroot] Make 4.3 and printvars

[Giulio Benetti]

Hi Arnout,

On 03/06/22 16:05, Arnout Vandecappelle wrote:
>   Sending this in name of Jean-Pierre, who is not on the list.
> 
>> Hello,
>>
>> A quick mail to let you know that I also faced the make 4.3 printvars 
>> issue you mentioned in Buildroot mailing list.
>>
>> On my side increasing the stack size limit as follow:
>>
>> ulimit -s 16000
>>
>> solved this issue.
>>
>> Regards.
> 
> 
>   I tested it myself and indeed, it works!

I confirm, it works!

>   It would be great if someone could hack this into the Makefile itself 
> (so that it recurses if ulimit -s is not high enough) and revert 
> 25cec5ea733251.

I'm trying to build libnss that is impacted by that problem too and see
if it builds correctly. I let you know all.

Best regards
-- 
Giulio Benetti
CTO/CEO@Benetti Engineering sas

>   Regards,
>   Arnout
> 
> _______________________________________________
> buildroot mailing list
> buildroot@buildroot.org
> https://lists.buildroot.org/mailman/listinfo/buildroot

_______________________________________________
buildroot mailing list
buildroot@buildroot.org
https://lists.buildroot.org/mailman/listinfo/buildroot

Re: [Buildroot] Make 4.3 and printvars

[Giulio Benetti]

On 03/06/22 16:25, Giulio Benetti wrote:
> Hi Arnout,
> 
> On 03/06/22 16:05, Arnout Vandecappelle wrote:
>>   Sending this in name of Jean-Pierre, who is not on the list.
>>
>>> Hello,
>>>
>>> A quick mail to let you know that I also faced the make 4.3 printvars 
>>> issue you mentioned in Buildroot mailing list.
>>>
>>> On my side increasing the stack size limit as follow:
>>>
>>> ulimit -s 16000
>>>
>>> solved this issue.
>>>
>>> Regards.
>>
>>
>>   I tested it myself and indeed, it works!
> 
> I confirm, it works!
> 
>>   It would be great if someone could hack this into the Makefile 
>> itself (so that it recurses if ulimit -s is not high enough) and 
>> revert 25cec5ea733251.
> 
> I'm trying to build libnss that is impacted by that problem too and see
> if it builds correctly. I let you know all.

And yes, this work-around is great because also libnss build correctly
so we can have it back building in parallel.

Wouldn't be enough to increase the stack size to 16000 when Make 4.3 is
used?

Best regards
-- 
Giulio Benetti
CTO/CEO@Benetti Engineering sas
_______________________________________________
buildroot mailing list
buildroot@buildroot.org
https://lists.buildroot.org/mailman/listinfo/buildroot

Re: [Buildroot] Make 4.3 and printvars

[Thomas Petazzoni via buildroot]

Hello,

On Fri, 3 Jun 2022 16:05:18 +0200
Arnout Vandecappelle <arnout@mind.be> wrote:

>   I tested it myself and indeed, it works!
> 
>   It would be great if someone could hack this into the Makefile itself (so that 
> it recurses if ulimit -s is not high enough) and revert 25cec5ea733251.

FYI, the make 4.3 bug is resolved upstream:

  https://git.savannah.gnu.org/cgit/make.git/commit/?id=e49e11e069fe7f214263be1782242b9b50f71eaa

I have asked upstream to issue a new release:

  https://savannah.gnu.org/bugs/?59093

but not feedback so far.

So this workaround of "ulimit -s <highvalue>" should only be needed for
make 4.3. Later versions are supposed to be fixed.

Thomas
-- 
Thomas Petazzoni, co-owner and CEO, Bootlin
Embedded Linux and Kernel engineering and training
https://bootlin.com
_______________________________________________
buildroot mailing list
buildroot@buildroot.org
https://lists.buildroot.org/mailman/listinfo/buildroot

Re: [Buildroot] Make 4.3 and printvars

[Yann E. MORIN]

All,

On 2022-06-03 16:05 +0200, Arnout Vandecappelle spake thusly:
>  Sending this in name of Jean-Pierre, who is not on the list.
> >A quick mail to let you know that I also faced the make 4.3 printvars issue you mentioned in Buildroot mailing list.
> >On my side increasing the stack size limit as follow:
> >ulimit -s 16000
> >solved this issue.
>  I tested it myself and indeed, it works!

Unfortunately, it does not:

    $ make defconfig
    $ make allyespackageconfig

    $ ulimit -s
    8192
    $ make show-vars >/dev/null
    Segmentation fault (core dumped)

    $ ulimit -s 16000
    $ ulimit -s
    16000
    $ make show-vars >/dev/null
    [...]
    Segmentation fault (core dumped)

I guess it works by chance on "small-enough" configurations, but this is
still not guaranteed that it works all the times.

I'd rather have no workaround, than one that is half-functional.

Yes, the above *is* extreme, and a completely degenerate case, yet it
means the issue it still present for "big-enough" configurations (I
haven't tried to find how many packages must be enabled before we reach
the tripping point, but that's not the point).

Regards,
Yann E. MORIN.

-- 
.-----------------.--------------------.------------------.--------------------.
|  Yann E. MORIN  | Real-Time Embedded | /"\ ASCII RIBBON | Erics' conspiracy: |
| +33 662 376 056 | Software  Designer | \ / CAMPAIGN     |  ___               |
| +33 561 099 427 `------------.-------:  X  AGAINST      |  \e/  There is no  |
| http://ymorin.is-a-geek.org/ | _/*\_ | / \ HTML MAIL    |   v   conspiracy.  |
'------------------------------^-------^------------------^--------------------'
_______________________________________________
buildroot mailing list
buildroot@buildroot.org
https://lists.buildroot.org/mailman/listinfo/buildroot

Re: [Buildroot] Make 4.3 and printvars

[Giulio Benetti]

Hi Yann,

On 04/06/22 10:19, Yann E. MORIN wrote:
> All,
> 
> On 2022-06-03 16:05 +0200, Arnout Vandecappelle spake thusly:
>>   Sending this in name of Jean-Pierre, who is not on the list.
>>> A quick mail to let you know that I also faced the make 4.3 printvars issue you mentioned in Buildroot mailing list.
>>> On my side increasing the stack size limit as follow:
>>> ulimit -s 16000
>>> solved this issue.
>>   I tested it myself and indeed, it works!
> 
> Unfortunately, it does not:
> 
>      $ make defconfig
>      $ make allyespackageconfig
> 
>      $ ulimit -s
>      8192
>      $ make show-vars >/dev/null
>      Segmentation fault (core dumped)
> 
>      $ ulimit -s 16000
>      $ ulimit -s
>      16000
>      $ make show-vars >/dev/null
>      [...]
>      Segmentation fault (core dumped)
> 
> I guess it works by chance on "small-enough" configurations, but this is
> still not guaranteed that it works all the times.

this is reason why it worked on my up-to-date Ubuntu-22.04 while only
building libnss.

-- 
Giulio Benetti
CTO/CEO@Benetti Engineering sas

> I'd rather have no workaround, than one that is half-functional.
> 
> Yes, the above *is* extreme, and a completely degenerate case, yet it
> means the issue it still present for "big-enough" configurations (I
> haven't tried to find how many packages must be enabled before we reach
> the tripping point, but that's not the point).
> 
> Regards,
> Yann E. MORIN.
> 

_______________________________________________
buildroot mailing list
buildroot@buildroot.org
https://lists.buildroot.org/mailman/listinfo/buildroot