JDK-8177918 : Test compiler/codecache/CheckReservedInitialCodeCacheSizeArgOrder.java fails
  • Type: Bug
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: 9
  • Priority: P3
  • Status: Closed
  • Resolution: Duplicate
  • Submitted: 2017-03-31
  • Updated: 2017-04-03
  • Resolved: 2017-04-03
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JDK 9
9Resolved
Related Reports
Duplicate :  
JDK-8177899 - Tests fail due to code cache exhaustion on machines with many cores
Description
The test which checks that the order in which ReversedCodeCacheSize and InitialCodeCacheSize are passed to the VM is irrelevant (compiler/codecache/CheckReservedInitialCodeCacheSizeArgOrder.java) fails:

----------System.out:(2/1144)----------
Command line: [/export/home/aginfra/CommonData/TEST_JAVA_HOME/bin/java -d64 -cp /scratch/export/home/aginfra/sandbox/results/workDir/classes/1/compiler/codecache:/scratch/export/home/aginfra/CommonData/j2se_jdk/hotspot/test/compiler/codecache:/scratch/export/home/aginfra/sandbox/results/workDir/classes/1/test/lib:/scratch/export/home/aginfra/CommonData/j2se_jdk/test/lib:/scratch/export/home/aginfra/CommonData/jtreg_dir/lib/javatest.jar:/scratch/export/home/aginfra/CommonData/jtreg_dir/lib/jtreg.jar -XX:InitialCodeCacheSize=4m -XX:ReservedCodeCacheSize=8m -version ]
Command line: [/export/home/aginfra/CommonData/TEST_JAVA_HOME/bin/java -d64 -cp /scratch/export/home/aginfra/sandbox/results/workDir/classes/1/compiler/codecache:/scratch/export/home/aginfra/CommonData/j2se_jdk/hotspot/test/compiler/codecache:/scratch/export/home/aginfra/sandbox/results/workDir/classes/1/test/lib:/scratch/export/home/aginfra/CommonData/j2se_jdk/test/lib:/scratch/export/home/aginfra/CommonData/jtreg_dir/lib/javatest.jar:/scratch/export/home/aginfra/CommonData/jtreg_dir/lib/jtreg.jar -XX:ReservedCodeCacheSize=8m -XX:InitialCodeCacheSize=4m -version ]
----------System.err:(13/850)----------
java.lang.RuntimeException: Test failed
	at compiler.codecache.CheckReservedInitialCodeCacheSizeArgOrder.main(CheckReservedInitialCodeCacheSizeArgOrder.java:54)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:547)
	at com.sun.javatest.regtest.agent.MainWrapper$MainThread.run(MainWrapper.java:110)
	at java.base/java.lang.Thread.run(Thread.java:844)

JavaTest Message: Test threw exception: java.lang.RuntimeException: Test failed
JavaTest Message: shutting down test

STATUS:Failed.`main' threw exception: java.lang.RuntimeException: Test failed
Comments
The test sets -XX:ReservedCodeCacheSize=8m which is not enough for VM startup on machines with many cores and with a debug build. The machine has 256 cores and the VM therefore creates 36 compiler threads. Each compiler thread requires extra space in the code cache for temporary buffers: java -XX:ReservedCodeCacheSize=10M -XX:+PrintCodeCache -version CodeCache: size=10240Kb used=8875Kb max_used=8881Kb free=1364Kb bounds [0x00007efd50a93000, 0x00007efd51343000, 0x00007efd51493000] total_blobs=915 nmethods=36 adapters=724 The test fails because the output varies according to where we fail during startup. For example, "Java HotSpot(TM) 64-Bit Server VM warning: Initialization of C1 CompilerThread34 thread failed (no space to run compilers)" vs. "Java HotSpot(TM) 64-Bit Server VM warning: Initialization of C1 CompilerThread33 thread failed (no space to run compilers)" This is a duplicate of JDK-8177899.
03-04-2017