Bug ID: JDK-4917709 SEGV in MapLoops test

JDK-4917709 : SEGV in MapLoops test

Type: Bug
Component: hotspot
Sub-Component: compiler
Affected Version: 1.4.2,1.4.2_03,5.0

Priority: P2
Status: Resolved
Resolution: Fixed
OS:
linux_redhat_7.2,solaris_8,windows_xp linux_redhat_7.2,solaris_8,windows_xp
CPU: x86

Submitted: 2003-09-05
Updated: 2004-08-17
Resolved: 2003-09-30

Versions (Unresolved/Resolved/Fixed)

The Version table provides details related to the release that this issue/RFE will be addressed.

Unresolved : Release in which this issue/RFE will be addressed.
Resolved: Release in which this issue/RFE has been resolved.
Fixed : Release in which this issue/RFE has been fixed. The release containing this fix may be available for download as an Early Access Release or a General Availability Release.

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Other
1.4.2_06 06Fixed

Related Reports

Duplicate :	JDK-5038900 - BigInteger.toString causes NullPointerException and JVM hang.
Duplicate :	JDK-4985576 - Multi-thread invocation of method sometimes returns null
Relates :	JDK-6215242 - ShouldNotReachHere() failure at hotspot/src/cpu/i486/vm/c1_FrameMap_i486.cpp, 92
Relates :	JDK-6231558 - JVM outputs exceptions or crash with a program using Big interger in 1.4.2_08b2
Relates :	JDK-6239336 - JVM internal error/EXCEPTION_ACCESS_VIOLATION, possibly memory related?
Relates :	JDK-6232217 - Regression: test for failing for 1.4.2_08 b02 but passes for 1.4.2_08 b01 on Cinnebar

Description

The attached test program causes the VM to abort with a SEGV around 30%
of the time on Intel systems with the -client option.

The source fine must be compiled with the "-source 1.5" option.  It requires
a J2SE build with the JSR-166 library changes which can be found under:

  /home/mb29450/ws/jsr166/build/solaris-i586  (solaris-x86)
  /net/polgar/u/martin/src/jsr166/images      (other systems)

The failure usually occurs in java.util.concurrent.ConcurrentHashMap$Segment.get(), but  I don't see anything
obviously wrong with the generated code for this method.  It may just be
using a value that was corrupted someplace else.

Comments

CONVERTED DATA BugTraq+ Release Management Values COMMIT TO FIX: 1.4.2_06 generic tiger FIXED IN: 1.4.2_06 tiger INTEGRATED IN: 1.4.2_06 tiger tiger-b22

11-09-2004

EVALUATION This is a old bug that we're just finding. It was introduced some time in 1.4.1. There used to be a bailout if the stack wasn't empty at backward branches because the oopmap ends up skipping any values which are in spills on the expression stack. This bug shouldn't hold up the integration of the JSR166 changes. ###@###.### 2003-09-18

18-09-2003