Re: [rvm-research] Fixing size of metadata space?

Hi Nathan,

It looks like the first problem is an assertion failure in 
Space.<init>() at line 152. My line numbers don't match exactly, but it 
seems like the error is probably occurring because of a 
non-chunk-aligned size (10 MB):

     if (extent.NE(chunkAlign(extent, false))) {
       VM.assertions.fail(name + " requested non-aligned extent: " + 
extent.toLong() + " bytes");
     }

Cheers,
Mike

On 04/03/2015 11:55 AM, Nathan Ricci wrote:
> Hello,
>
>          I'm trying to compare two different collectors that use a 
> different amount of meta-data, and as part of that I wanted to fix the 
> size of the metadata space. It tried to do this by chaning the call 
> where the metadata space is created in Plan, from:
>
>   metaDataSpace = new RawPageSpace("meta",
>       VMRequest.create());
>
> To:
>    metaDataSpace = new RawPageSpace("meta",
>       VMRequest.create(10));
>
>     In order to create a VMRequest of 10 MB, and give the metadata 
> space an initial size of 10 MB. However, this causes a null pointer 
> exeception during the build process (stack trace below).   Am I going 
> about this the wrong way?
>
>          Thanks,
>               Nathan Ricci, Tufts University
>
>
>       java.lang.ExceptionInInitializerError
>         at 
> org.jikesrvm.mm.mminterface.MemoryManager.getAllocationSite(MemoryManager.java:335)
>         at 
> org.jikesrvm.compilers.baseline.ia32.BaselineCompilerImpl.emit_resolved_new(BaselineCompilerImpl.java:3373)
>         at 
> org.jikesrvm.compilers.baseline.TemplateCompilerFramework.genCode(TemplateCompilerFramework.java:1593)
>         at 
> org.jikesrvm.compilers.baseline.BaselineCompiler.compile(BaselineCompiler.java:250)
>         at 
> org.jikesrvm.compilers.baseline.BaselineCompiledMethod.compile(BaselineCompiledMethod.java:165)
>         at 
> org.jikesrvm.compilers.baseline.BaselineCompiler.compile(BaselineCompiler.java:173)
>         at 
> org.jikesrvm.compilers.baseline.BaselineBootImageCompiler.compileMethod(BaselineBootImageCompiler.java:52)
>         at 
> org.jikesrvm.compilers.common.BootImageCompiler.compile(BootImageCompiler.java:75)
>         at 
> org.jikesrvm.compilers.common.BootImageCompiler.compile(BootImageCompiler.java:80)
>         at 
> org.jikesrvm.classloader.NormalMethod.genCode(NormalMethod.java:180)
>         at org.jikesrvm.classloader.RVMMethod.compile(RVMMethod.java:729)
>         at 
> org.jikesrvm.classloader.RVMMethod.getCurrentEntryCodeArray(RVMMethod.java:713)
>         at 
> org.jikesrvm.classloader.RVMClass.instantiate(RVMClass.java:1436)
>         at 
> org.jikesrvm.classloader.RVMClass.instantiate(RVMClass.java:1413)
>         at 
> org.jikesrvm.tools.bootImageWriter.BootImageWorker.run(BootImageWorker.java:44)
>         at 
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1146)
>         at 
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
>         at java.lang.Thread.run(Thread.java:701)
>       Caused by: java.lang.NullPointerException
>         at org.mmtk.policy.Space.reservedPages(Space.java:226)
>         at org.mmtk.policy.Space.getPagesReserved(Space.java:501)
>         at org.mmtk.policy.Space.printUsage(Space.java:640)
>         at org.mmtk.policy.Space.printUsagePages(Space.java:519)
>         at org.jikesrvm.mm.mmtk.Assert.fail(Assert.java:45)
>         at org.mmtk.policy.Space.<init>(Space.java:152)
>         at org.mmtk.policy.RawPageSpace.<init>(RawPageSpace.java:43)
>         at org.mmtk.plan.Plan.<clinit>(Plan.java:162)
>
>
>
>
>
> ------------------------------------------------------------------------------
> Dive into the World of Parallel Programming The Go Parallel Website, sponsored
> by Intel and developed in partnership with Slashdot Media, is your hub for all
> things parallel software development, from weekly thought leadership blogs to
> news, videos, case studies, tutorials and more. Take a look and join the
> conversation now. http://goparallel.sourceforge.net/
>
>
> _______________________________________________
> Jikesrvm-researchers mailing list
> [email protected]
> https://lists.sourceforge.net/lists/listinfo/jikesrvm-researchers

------------------------------------------------------------------------------
Dive into the World of Parallel Programming The Go Parallel Website, sponsored
by Intel and developed in partnership with Slashdot Media, is your hub for all
things parallel software development, from weekly thought leadership blogs to
news, videos, case studies, tutorials and more. Take a look and join the 
conversation now. http://goparallel.sourceforge.net/

_______________________________________________
Jikesrvm-researchers mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/jikesrvm-researchers