GNU bug report logs - #18945
Parallel compilation with jobs >= 12 fails on DOT_I_FILES

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: aszlig <aszlig <at> redmoonstudios.org>
To: bug-guile <at> gnu.org
Subject: Parallel compilation with jobs >= 12 fails on DOT_I_FILES
Date: Tue, 4 Nov 2014 11:50:20 +0100

[Message part 1 (text/plain, inline)]

Hi,

It seems that the DOT_I_FILES in libguile/Makefile.am are missing
explicit dependency information and thus are prone to race conditions
during parallel builds.

See build log at:

https://headcounter.org/hydra/build/581960/nixlog/11/raw

And discussion here:

https://github.com/NixOS/nixpkgs/commit/1e4e719ffba3cb90481eb71f29b48b197c50a2d3#commitcomment-8420579

a!
-- 
aszlig

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Message #8 received at 18945 <at> debbugs.gnu.org (full text, mbox):

From: Andy Wingo <wingo <at> pobox.com>
To: aszlig <aszlig <at> redmoonstudios.org>
Cc: 18945 <at> debbugs.gnu.org
Subject: Re: bug#18945: Parallel compilation with jobs >= 12 fails on
 DOT_I_FILES
Date: Wed, 22 Jun 2016 13:28:33 +0200

Hi :)

On Tue 04 Nov 2014 11:50, aszlig <aszlig <at> redmoonstudios.org> writes:

> It seems that the DOT_I_FILES in libguile/Makefile.am are missing
> explicit dependency information and thus are prone to race conditions
> during parallel builds.
>
> See build log at:
>
> https://headcounter.org/hydra/build/581960/nixlog/11/raw
>
> And discussion here:
>
> https://github.com/NixOS/nixpkgs/commit/1e4e719ffba3cb90481eb71f29b48b197c50a2d3#commitcomment-8420579

How would this work?  The .deps includes a dependency e.g. of
libguile_2.0_la-instructions.lo on vm-i-system.i.  That should be
sufficient, no?  Is it not guaranteed that .deps are there or something?

Andy

Message #11 received at 18945 <at> debbugs.gnu.org (full text, mbox):

From: aszlig <aszlig <at> redmoonstudios.org>
To: Andy Wingo <wingo <at> pobox.com>
Cc: 18945 <at> debbugs.gnu.org
Subject: Re: bug#18945: Parallel compilation with jobs >= 12 fails on
 DOT_I_FILES
Date: Wed, 22 Jun 2016 15:12:17 +0200

[Message part 1 (text/plain, inline)]

On Wed, Jun 22, 2016 at 01:28:33PM +0200, Andy Wingo wrote:
> How would this work?  The .deps includes a dependency e.g. of
> libguile_2.0_la-instructions.lo on vm-i-system.i.  That should be
> sufficient, no?  Is it not guaranteed that .deps are there or
> something?

I have no idea, because I have reported that bug in 2014 and things
might have changed in-between in addition to me forgetting about the
specifics of this bug.

So I guess this bug can be closed and I'll reopen a new bug if it
happens again.

a!
-- 
aszlig
Universal dilettante

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Message #16 received at 18945-done <at> debbugs.gnu.org (full text, mbox):

From: Andy Wingo <wingo <at> pobox.com>
To: aszlig <aszlig <at> redmoonstudios.org>
Cc: 18945-done <at> debbugs.gnu.org
Subject: Re: bug#18945: Parallel compilation with jobs >= 12 fails on
 DOT_I_FILES
Date: Wed, 22 Jun 2016 15:33:22 +0200

Yeah, our bad for not striking while the iron was hot.  Let's pick this
up again when/if we can reproduce it :)

Cheers,

Andy

On Wed 22 Jun 2016 15:12, aszlig <aszlig <at> redmoonstudios.org> writes:

> On Wed, Jun 22, 2016 at 01:28:33PM +0200, Andy Wingo wrote:
>> How would this work?  The .deps includes a dependency e.g. of
>> libguile_2.0_la-instructions.lo on vm-i-system.i.  That should be
>> sufficient, no?  Is it not guaranteed that .deps are there or
>> something?
>
> I have no idea, because I have reported that bug in 2014 and things
> might have changed in-between in addition to me forgetting about the
> specifics of this bug.
>
> So I guess this bug can be closed and I'll reopen a new bug if it
> happens again.
>
> a!

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