JVM crashing insides chroots - was: Re: Zero crashing on ARM

[Severin Gehwolf]

On Wed, 2017-11-29 at 14:56 +0100, John Paul Adrian Glaubitz wrote:
> On 11/29/2017 02:49 PM, Severin Gehwolf wrote:
> > > In any case, it will potentially cause issues with chroots as they are used
> > > on Linux distributions for building packages.
> > 
> > Agreed. It needs to be fixed. The default is +UseContainerSupport after
> > all.
> 
> It seems to have huge performance impact, too:
> 
> (sid-amd64-sbuild)root at trlin:/usr/src/hs# time /usr/bin/java -version
> openjdk version "9.0.1"
> OpenJDK Runtime Environment (build 9.0.1+11-Debian-1)
> OpenJDK 64-Bit Server VM (build 9.0.1+11-Debian-1, mixed mode)
> 
> real    0m0.101s
> user    0m0.128s
> sys     0m0.019s
> (sid-amd64-sbuild)root at trlin:/usr/src/hs# time /usr/src/hs/build/linux-x86_64-normal-zero-release/jdk/bin/java -XX:-UseContainerSupport -version
> openjdk version "10-internal"
> OpenJDK Runtime Environment (build 10-internal+0-adhoc.root.hs)
> OpenJDK 64-Bit Zero VM (build 10-internal+0-adhoc.root.hs, interpreted mode)
> 
> real    0m26.010s
> user    0m25.551s
> sys     0m0.380s
> (sid-amd64-sbuild)root at trlin:/usr/src/hs#

You are comparing a JIT server JVM with Zero. That's expected ;-)

Thanks,
Severin