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Bug ID: 6833129 specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
6833129 : specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot

Details
Type:
Bug
Submit Date:
2009-04-22
Status:
Closed
Updated Date:
2010-04-02
Project Name:
JDK
Resolved Date:
2010-01-15
Component:
hotspot
OS:
generic
Sub-Component:
compiler
CPU:
x86
Priority:
P5
Resolution:
Fixed
Affected Versions:
7
Fixed Versions:
hs16

Related Reports
Backport:
JDK-2182198 - specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
Backport:
JDK-2181941 - specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
Relates:
JDK-6840775 - Multiple JVM crashes seen with 1.6.0_10 through early access of 1.6.0_14 - possibly related to GC
Relates:
JDK-6589834 - deoptimization problem with -XX:+DeoptimizeALot
Relates:
JDK-6889869 - assert(!Interpreter::bytecode_should_reexecute(code),"should not reexecute")

Sub Tasks

Description
This is split out from CR 6589834. The failure occurs on 32-bit vm on x86 platforms.
The following comments is from CR 6589834 description.

>With the internal testing option -XX:+DeoptimizeALot, running the SPECJVM98
>test _213_javac fails with NullPointerException.  While this started occurring
>with the 20070413103655.jrose.dolphin-intrinsics putback, it is actually an
>existing incompatibility between the deoptimization support and the intrinsic
>inlining of the server compiler.

The failures are intermittent, and appear in tests other than _213_javac in specjvm98
as well. -XX:-InlineArrayCopy could be used to suppress the failures.

Comments
EVALUATION

http://hg.openjdk.java.net/jdk7/hotspot-gc/hotspot/rev/9987d9d5eb0e
2009-08-10 
EVALUATION

http://hg.openjdk.java.net/jdk7/hotspot-comp/hotspot/rev/9987d9d5eb0e
2009-08-01 
EVALUATION

See comments for details. We will have to re-execute the clone or copyOf invoke instruction rather than continue.
2009-06-30


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