OOM due to unbounded rescuePCs growth #4865
Description
Environment
Provide at least:
-
JRuby version (
jruby -v) and command line (flags, JRUBY_OPTS, etc)$ jruby -v jruby 9.1.14.0 (2.3.3) 2017-11-08 2176f24 Java HotSpot(TM) 64-Bit Server VM 25.144-b01 on 1.8.0_144-b01 +jit [darwin-x86_64] -
Operating system and platform (e.g.
uname -a)Observed on both CentOS 7 and Mac OS 10.13.1
Actual Behavior
The following short program, extracted from a much larger application, runs out of memory due to unbounded growth in StartupInterpreterEngine.rescuePCs.
$ cat foo.rb
require_relative 'bar'
run(Queue.new)
$ cat bar.rb
def run(work_queue)
while true
begin
work = work_queue.pop(true)
rescue ThreadError => e
next
end
end
end
$ time JRUBY_OPTS="-w -J-Xmx32m" jruby foo.rb
Error: Your application used more memory than the safety cap of 32M.
Specify -J-Xmx####M to increase it (#### = cap size in MB).
java.lang.OutOfMemoryError: Java heap space
at java.util.Arrays.copyOf(Arrays.java:3210)
at java.util.Arrays.copyOf(Arrays.java:3181)
at java.util.Vector.grow(Vector.java:266)
at java.util.Vector.ensureCapacityHelper(Vector.java:246)
at java.util.Vector.addElement(Vector.java:620)
at java.util.Stack.push(Stack.java:67)
at org.jruby.ir.interpreter.StartupInterpreterEngine.interpret(StartupInterpreterEngine.java:101)
at org.jruby.ir.interpreter.InterpreterEngine.interpret(InterpreterEngine.java:84)
at org.jruby.internal.runtime.methods.MixedModeIRMethod.INTERPRET_METHOD(MixedModeIRMethod.java:179)
at org.jruby.internal.runtime.methods.MixedModeIRMethod.call(MixedModeIRMethod.java:165)
at org.jruby.internal.runtime.methods.DynamicMethod.call(DynamicMethod.java:200)
at org.jruby.runtime.callsite.CachingCallSite.cacheAndCall(CachingCallSite.java:318)
at org.jruby.runtime.callsite.CachingCallSite.call(CachingCallSite.java:155)
at foo.invokeOther3:run(foo.rb:3)
at foo.RUBY$script(foo.rb:3)
at java.lang.invoke.LambdaForm$DMH/989110044.invokeStatic_L7_L(LambdaForm$DMH)
at java.lang.invoke.LambdaForm$BMH/1182461167.reinvoke(LambdaForm$BMH)
at java.lang.invoke.LambdaForm$MH/198761306.invoker(LambdaForm$MH)
at java.lang.invoke.LambdaForm$MH/1058025095.invokeExact_MT(LambdaForm$MH)
at java.lang.invoke.MethodHandle.invokeWithArguments(MethodHandle.java:627)
at org.jruby.ir.Compiler$1.load(Compiler.java:95)
at org.jruby.Ruby.runScript(Ruby.java:828)
at org.jruby.Ruby.runNormally(Ruby.java:747)
at org.jruby.Ruby.runNormally(Ruby.java:765)
at org.jruby.Ruby.runFromMain(Ruby.java:578)
at org.jruby.Main.doRunFromMain(Main.java:417)
at org.jruby.Main.internalRun(Main.java:305)
at org.jruby.Main.run(Main.java:232)
at org.jruby.Main.main(Main.java:204)
real 0m41.864s
user 0m51.344s
sys 0m0.495s
Returned 1.