bug#36419: webkitgtk build fails duo to suspected race

bug#36419: webkitgtk build fails duo to suspected race

[Jack Hill]

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Hi Guix,

It appears that the attatched derivation to build webkitgtk using the 
following guix

```
Generation 2	Jun 26 2019 20:21:09	(current)
   guix ba91247
     repository URL: https://git.savannah.gnu.org/git/guix.git
     branch: master
     commit: ba912479e8481d69b699ce348b35d5d70f0c9367
```

fails to build in a way that looks like a race. The suspicious lines in 
the attatched log are:

```
Traceback (most recent call last):
   File "/tmp/guix-build-webkitgtk-2.24.2.drv-0/webkitgtk-2.24.2/Source/WebKit/Scripts/generate-message-receiver.py", line 28, in <module>
     import webkit.messages
EOFError: EOF read where object expected
```

I have been able to sucessfully build webkitgtk on multiple hosts by using 
`-c 2`

Best,
Jack

[-- Attachment #2: Type: text/plain, Size: 8924 bytes --]

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bug#36419: (no subject)

[Jack Hill]

The previously attatched log was generated with -c 12. I am currently 
running a build with -c 1 to verify that the problem occurs there as well.

(I remember it happening with -c 1 in the past, but my memory could be 
faulty).

bug#36419: (no subject)

[Jack Hill]

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I've confirmed that webkitgtk also fails to build for me with -c 1. Log 
attatched.

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bug#36419: webkitgtk fixed in later release?

[Jack Hill]

Today I was able to build webkitgkt 2.24.4 with Guix commit 
4343eebfc9f7d44ec9a665f3374d1397301b542e. It looks like it is also 
available on ci.guix.gnu.org:

https://ci.guix.gnu.org/25hz999kgcjh4alm6liwm12jm3blf5zz.narinfo

This is a newer release of webkitgtk than the one that failed (2.24.2). 
Do we think this means that webkitgtk build problem has been fixed, or did 
we just get lucky with this release?

My feeling is that we should close this bug and can open a new one if it 
re-occurs.

Thoughts?
Jack

bug#36419: webkitgtk fixed in later release?

[Ludovic Courtès]

Hello,

Jack Hill <jackhill@jackhill.us> skribis:

> Today I was able to build webkitgkt 2.24.4 with Guix commit
> 4343eebfc9f7d44ec9a665f3374d1397301b542e. It looks like it is also
> available on ci.guix.gnu.org:
>
> https://ci.guix.gnu.org/25hz999kgcjh4alm6liwm12jm3blf5zz.narinfo
>
> This is a newer release of webkitgtk than the one that failed
> (2.24.2). Do we think this means that webkitgtk build problem has been
> fixed, or did we just get lucky with this release?
>
> My feeling is that we should close this bug and can open a new one if
> it re-occurs.

I agree.  Closed!

Thanks for following up on this,
Ludo’.