Segfault when running compiled Truffle method.

[Wei Zhang]

Hi,

I keep ran into the same crash when I try run a couple of benchmarks on ZipPy.

The benchmarks that I have problem with are Python generator
intensive, which relies heavily on MaterializedFrames.
I believe it has something to do with compiled code that accesses
MaterializedFrame.
Sometime, com.oracle.truffle.api.impl.DefaultMaterializedFrame::setInt
shows up in the error message.

The error message:

#
# A fatal error has been detected by the Java Runtime Environment:
#
#  SIGSEGV (0xb) at pc=0x0000000107a06c0b, pid=40193, tid=6403
#
# JRE version: Java(TM) SE Runtime Environment (7.0_45-b18) (build 1.7.0_45-b18)
# Java VM: OpenJDK 64-Bit Server VM (25.0-b63-internal mixed mode
bsd-amd64 compressed oops)
# Problematic frame:
# J -1 Graal com.oracle.graal.truffle.OptimizedCallTarget.executeHelper(Lcom/oracle/truffle/api/frame/PackedFrame;Lcom/oracle/truffle/api/Arguments;)Ljava/lang/Object;
(22 bytes) @ 0x0000000107a06c0b [0x0000000107a06800+0x40b]
#
# 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/zwei/Workspace/zippy/hs_err_pid40193.log
#
# If you would like to submit a bug report, please visit:
#   http://bugreport.sun.com/bugreport/crash.jsp
#

The error log is attached.

The problem can be reproduced with this command:
./mx.sh --vm server python
graal/edu.uci.python.benchmark/src/benchmarks/bm-ai.py @-esa @-ea

The latest commits of zippy can be pulled from:
ssh://hg@bitbucket.org/ssllab/zippy

I'm not sure what would be the best way to debug this from my side,
since it went through the entire compilation phases and crashed at
runtime.
Does anybody has experienced the similar problem?
Any help is appreciated.
Thanks,

/Wei