[issue40424] AIX: makexp_aix, parallel build (failures) and ld WARNINGS

[Michael Felt]

Michael Felt  added the comment:

If #19521 had been merged I would be all for closing this as a duplicate. 
However, if i have read all the comments correctly noone has tested the other 
pr. 

As the approaches are quite different I think both should be open until a 
decision is made on the better approach. 

Closing one (asap) is a good idea, especially if that leads to something being 
merged so this is finally repaired. 

Sent from my iPhone

> On 15 Aug 2020, at 23:07, Stefan Krah  wrote:
> 
> 
> Stefan Krah  added the comment:
> 
> I understand that both of you are in favor of #19521 (the patch of
> which I have not tried yet).
> 
> Can we close this as a duplicate? Please just reopen if you disagree.
> 
> --
> nosy: +skrah
> resolution:  -> duplicate
> stage: patch review -> resolved
> status: open -> closed
> superseder:  -> Parallel build race condition on AIX since python-2.7
> 
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[issue40424] AIX: makexp_aix, parallel build (failures) and ld WARNINGS

[Stefan Krah]

Stefan Krah  added the comment:

I understand that both of you are in favor of #19521 (the patch of
which I have not tried yet).

Can we close this as a duplicate? Please just reopen if you disagree.

--
nosy: +skrah
resolution:  -> duplicate
stage: patch review -> resolved
status: open -> closed
superseder:  -> Parallel build race condition on AIX since python-2.7

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[issue40424] AIX: makexp_aix, parallel build (failures) and ld WARNINGS

[Michael Felt]

Michael Felt  added the comment:

Thanks Kevin.

I took your patch (added your name to blurb as well).

Only difference was to remove Qsystem (or something), from the pathnames.

--
versions: +Python 3.7

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[issue40424] AIX: makexp_aix, parallel build (failures) and ld WARNINGS

[Kevin]

Kevin  added the comment:

FYI, here's a patch we've been using with our builds on PASE (an AIX 
compatibility layer on the IBM i OS). It runs all the echos and nm in a 
sub-shell so that all the output appears as a continuous stream instead of 3 
separate open/write/close events.

There's still a race condition, but since it no longer appends, the last one in 
will win instead of the mixed result there is now. AFAICT, it gets created much 
earlier than it gets used so nothing _should_ be reading it while the writers 
are racing. At least it works for us on PASE with -j16 when building Python 3.6.

--
Added file: https://bugs.python.org/file49234/python3-makexp_aix.patch

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[issue40424] AIX: makexp_aix, parallel build (failures) and ld WARNINGS

[Michael Felt]

Michael Felt  added the comment:

Yes, it is less hacky - and something to pursue later - as a better
solution. Even the idea of perhaps no longer needing makexp_aix and/or
ld_so_aix and python.exp is much better solution.

However, the goal of this PR is to have something now - that removes the
pain (e.g., false bot failures and bot report storage impact) asap.

Many thanks for looking - and commenting!

On 15/06/2020 16:34, Kevin wrote:
> Kevin  added the comment:
>
> This seems to be a duplicate of https://bugs.python.org/issue19521
>
> The PR for that one seems a little less hacky since it uses make rules to 
> prevent duplication instead of lock files.
>
> --
> nosy: +kadler
>
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[issue40424] AIX: makexp_aix, parallel build (failures) and ld WARNINGS

[Kevin]

Kevin  added the comment:

This seems to be a duplicate of https://bugs.python.org/issue19521

The PR for that one seems a little less hacky since it uses make rules to 
prevent duplication instead of lock files.

--
nosy: +kadler

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[issue40424] AIX: makexp_aix, parallel build (failures) and ld WARNINGS

[Batuhan Taskaya]

Change by Batuhan Taskaya :


--
nosy: +BTaskaya

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[issue40424] AIX: makexp_aix, parallel build (failures) and ld WARNINGS

[Michael Felt]

Change by Michael Felt :


--
title: AIX: parallel build and ld WARNINGS -> AIX: makexp_aix, parallel build 
(failures) and ld WARNINGS

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