[rvm-research] BaseBaseNoGC config fails bootimage

I'm trying to build the BaseBaseNoGC configuration of the rvm but it fails on the bootimage step. I've built production configurations with no problem but I get this error for every BaseBase configuration.
I get the following error when I run "ant -Dhost.name=x86_64_m64-linux -Dconfig.name=BaseBaseNoGC":

build-bootimage:
     [echo] Building bootimage. Output redirected to : /home/julia/Downloads/jikesrvm-3.1.3/target/BaseBaseNoGC_x86_64_m64-linux/BootImageWriterOutput.txt
     [echo] MMTk properties = /home/julia/Downloads/jikesrvm-3.1.3/build/mmtk/default.properties
     [java] Java Result: 1
     [echo] java.lang.RuntimeException: vm internal error at:
     [echo] 	at org.jikesrvm.VM._assertionFailure(VM.java:628)
     [echo] 	at org.jikesrvm.VM._assert(VM.java:609)
     [echo] 	at org.jikesrvm.VM._assert(VM.java:584)
     [echo] 	at org.jikesrvm.ia32.OutOfLineMachineCode.generateStackTrampolineBridgeInstructions(OutOfLineMachineCode.java:507)
     [echo] 	at org.jikesrvm.ia32.OutOfLineMachineCode.init(OutOfLineMachineCode.java:53)
     [echo] 	at org.jikesrvm.tools.bootImageWriter.BootImageWriter.createBootImageObjects(BootImageWriter.java:1414)
     [echo] 	at org.jikesrvm.tools.bootImageWriter.BootImageWriter.main(BootImageWriter.java:906)
     [echo] Exception in thread "main" java.lang.Error: 
     [echo] BootImageWriter: unable to create objects: java.lang.RuntimeException: vm internal error at:
     [echo] 	at org.jikesrvm.tools.bootImageWriter.BootImageWriterMessages.fail(BootImageWriterMessages.java:26)
     [echo] 	at org.jikesrvm.tools.bootImageWriter.BootImageWriter.main(BootImageWriter.java:909)

BUILD FAILED
/home/julia/Downloads/jikesrvm-3.1.3/build.xml:1619: The following error occurred while executing this line:
/home/julia/Downloads/jikesrvm-3.1.3/build.xml:1628: Failed to write bootimage.

I'm running Ubuntu 12.04 x64 with OpenJDK/IcedTea 6.

Thanks,
Julia
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