Hard Crash on OS X and Linux (but somewhat environment dependent)

[Gilles Duboscq]

Hello Stefan,

Thanks for the report.
Could you send us the hs_err file as well (hs_err_pid68949.log)?

-Gilles

On Tue, Dec 9, 2014 at 11:35 PM, Stefan Marr <java at stefan-marr.de> wrote:
> Hi:
>
> In one of my experiments, I got a hard crash of the Graal VM.
> Error below.
>
> The error is somewhat dependent on either environment or for instance whether -ea and/or -esa are passed to the VM.
> Though, I haven’t managed to find a way to avoid crashes reliably.
>
> To reproduced, you’ll need with a little API change (see patch below) or my version of GraalVM.
>
> git clone https://github.com/smarr/GraalVM.git
> cd GraalVM
> ./mx.sh --vm server build -p
> cd ../
> git clone -b mt-vs-pe/without-control-specialization https://github.com/smarr/TruffleSOM.git
> cd TruffleSOM
> ant
> ../GraalVM/mxtool/mx --vm server vm -Xbootclasspath/a:build/classes som.vm.Universe -cp Smalltalk:Examples/Benchmarks/DeltaBlue Examples/Benchmarks/BenchmarkHarness.som  DeltaBlue  1500 0 6000
>
> Best regards
> Stefan
>
>
> #
> # A fatal error has been detected by the Java Runtime Environment:
> #
> #  SIGSEGV (0xb) at pc=0x000000010d601e5b, pid=68949, tid=4867
> #
> # JRE version: Java(TM) SE Runtime Environment (8.0_20-b26) (build 1.8.0_20-b26)
> # Java VM: OpenJDK 64-Bit Server VM (25.25-b02-internal-graal-unknown-venus-2-2014-12-09_22-44-20_CET mixed mode bsd-amd64 compressed oops)
> # Problematic frame:
> # J 7192 Graal com.oracle.graal.truffle.OptimizedCallTarget.callRoot([Ljava/lang/Object;)Ljava/lang/Object; (191 bytes) @ 0x000000010d601e5b [0x000000010d601e20+0x3b]
> #
> # Failed to write core dump. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again
> #
> # An error report file with more information is saved as:
> # /Users/smarr/Projects/PostDoc/Truffle/som/hs_err_pid68949.log
> Loaded disassembler from /Users/smarr/Projects/PostDoc/Truffle/graal/jdk1.8.0_20/product/jre/lib/hsdis-amd64.dylib
> Compiled method (Graal)   12445 7192       4       com.oracle.graal.truffle.OptimizedCallTarget::callRoot (191 bytes)
>  total in heap  [0x000000010d601cd0,0x000000010d601f50] = 640
>  relocation     [0x000000010d601e08,0x000000010d601e20] = 24
>  main code      [0x000000010d601e20,0x000000010d601edd] = 189
>  stub code      [0x000000010d601edd,0x000000010d601ee0] = 3
>  oops           [0x000000010d601ee0,0x000000010d601ef8] = 24
>  metadata       [0x000000010d601ef8,0x000000010d601f00] = 8
>  scopes data    [0x000000010d601f00,0x000000010d601f18] = 24
>  scopes pcs     [0x000000010d601f18,0x000000010d601f48] = 48
>  dependencies   [0x000000010d601f48,0x000000010d601f50] = 8
> Compiled method (c2)   12445 2114       4       com.oracle.graal.truffle.OptimizedCallTarget::doInvoke (6 bytes)
>  total in heap  [0x000000010c77b910,0x000000010c77bb58] = 584
>  relocation     [0x000000010c77ba48,0x000000010c77ba60] = 24
>  main code      [0x000000010c77ba60,0x000000010c77bac0] = 96
>  stub code      [0x000000010c77bac0,0x000000010c77bae8] = 40
>  oops           [0x000000010c77bae8,0x000000010c77baf0] = 8
>  metadata       [0x000000010c77baf0,0x000000010c77baf8] = 8
>  scopes data    [0x000000010c77baf8,0x000000010c77bb08] = 16
>  scopes pcs     [0x000000010c77bb08,0x000000010c77bb38] = 48
>  dependencies   [0x000000010c77bb38,0x000000010c77bb40] = 8
>  handler table  [0x000000010c77bb40,0x000000010c77bb58] = 24
>
>
> diff --git a/graal/com.oracle.graal.truffle/src/com/oracle/graal/truffle/OptimizedCallTarget.java b/graal/com.oracle.graal.truffle/src/com/oracle/graal/truffle/OptimizedCallTarget.java
> index 8d00194..0670fad 100644
> --- a/graal/com.oracle.graal.truffle/src/com/oracle/graal/truffle/OptimizedCallTarget.java
> +++ b/graal/com.oracle.graal.truffle/src/com/oracle/graal/truffle/OptimizedCallTarget.java
> @@ -104,7 +104,7 @@ public class OptimizedCallTarget extends InstalledCode implements RootCallTarget
>          if (root == null || !root.isCloningAllowed()) {
>              return null;
>          }
> -        return NodeUtil.cloneNode(root);
> +        return root.cloneRootNode();
>      }
>
>      public Assumption getNodeRewritingAssumption() {
> diff --git a/graal/com.oracle.truffle.api/src/com/oracle/truffle/api/nodes/RootNode.java b/graal/com.oracle.truffle.api/src/com/oracle/truffle/api/nodes/RootNode.java
> index aebf748..2552eea 100644
> --- a/graal/com.oracle.truffle.api/src/com/oracle/truffle/api/nodes/RootNode.java
> +++ b/graal/com.oracle.truffle.api/src/com/oracle/truffle/api/nodes/RootNode.java
> @@ -79,6 +79,10 @@ public abstract class RootNode extends Node {
>          return false;
>      }
>
> +    public RootNode cloneRootNode() {
> +        return NodeUtil.cloneNode(this);
> +    }
> +
>      /**
>       * Reports the execution count of a loop that is a child of this node. The optimization
>       * heuristics can use the loop count to guide compilation and inlining.
>
>
>
> --
> Stefan Marr
> INRIA Lille - Nord Europe
> http://stefan-marr.de/research/
>
>
>