client VM build doesn't build in parallel anymore

[Magnus Ihse Bursie]

There was a race with the JFR build tools when building multiple JVMs. 
:-( Erik produced a fix for this as part of  JDK-8202384), unfortunately 
this has not yet been pushed.

You can find the JFR fix part here: 
http://cr.openjdk.java.net/~erikj/8202384/webrev.05/make/hotspot/gensrc/GensrcJfr.gmk.udiff.html

If you apply it locally, it should resolve your issue.

If JDK-8202384 takes much longer to push, hopefully Erik can separate 
out this trivial part (which is already reviewed by me as part of 
JDK-8202384) and push it separately.

/Magnus



On 2018-06-15 14:04, Matthias Klose wrote:
> Since b14 or b15, the client VM on x86 doesn't build anymore when 
> building with
>
>   --with-jvm-variants=client,server --with-num-cores=4
>
> building with one to three cores seems to work however. The server and 
> zero VMs build without issues and parallel builds.  Any idea which 
> dependencies got dropped?
>
> javac: file not found: 
> /home/packages/openjdk/11/openjdk-11-11~18/build/buildtools/tools_classes/_the.BUILD_JFR_TOOLS_batch.tmp
> make[4]: *** 
> [/home/packages/openjdk/11/openjdk-11-11~18/build/buildtools/tools_classes/_the.BUILD_JFR_TOOLS_batch] 
> Error 3
> make[4]: *** Deleting file 
> '/home/packages/openjdk/11/openjdk-11-11~18/build/buildtools/tools_classes/_the.BUILD_JFR_TOOLS_batch'
> gensrc/GensrcJfr.gmk:40: recipe for target 
> '/home/packages/openjdk/11/openjdk-11-11~18/build/buildtools/tools_classes/_the.BUILD_JFR_TOOLS_batch' 
> failed
> make[4]: Leaving directory 
> '/home/packages/openjdk/11/openjdk-11-11~18/make/hotspot'
> make[3]: *** [hotspot-client-gensrc] Error 2
> make[3]: *** Waiting for unfinished jobs....
> make/Main.gmk:249: recipe for target 'hotspot-client-gensrc' failed
>