Java 64-Bit Server VM sparcv9 crash with unhandled implicit exception in compiled code:
Internal Error (nmethod.cpp:1707), pid=2272, tid=2. The following tests that use display lead to this vm crash:

jit/common/misctests/fpustack
regression/jit/4141334/SwingMark
nsk/regression/b4224902	
nsk/regression/b4224903	
nsk/regression/b4237950	
nsk/regression/b4244156	
nsk/regression/b4261880	
nsk/regression/b4265661	
nsk/regression/b4268494	
nsk/regression/b4270668	
nsk/regression/b4296365	
nsk/regression/b4501529	
nsk/stress/stack/b4525850
nsk/stress/jck12a/jck12a012	
nsk/stress/jck12a/jck12a016	
nsk/stress/jck12a/jck12a017	
nsk/stress/thread/thread003	
nsk/stress/thread/thread004	
nsk/stress/jck60/jck60015	
nsk/stress/jck60/jck60016	
nsk/stress/jck60/jck60018	
nsk/stress/jck60/jck60019	
nsk/stress/jck60/jck60024	
nsk/stress/jck60/jck60026

The tests pass with jdk 6 u2 and only 64-bit VM effected the tests pass with 32-bit VM. 
The crash occur only at Solaris sparc OS (Solaris 11 and Solaris 10 checked).

= How to reproduce 

1. logon to butters.russia or or any other solaris sparc

login details in comments

2. cd /net/vice/export/stt/newroot/results/6u3/b02/vm_1/vm/solaris11-sparcv9/server/comp/vm-vm_6-ur_server_comp_solaris11-sparcv92007-08-06-15-49-12/ResultDir/fpustack

3. ksh fpustack.tlog

4. you can use:

fpustack-u2.tlog to check with u2 that test pass
fpustack-sparc.tlog check with 32-bit vm that test pass

= Full hs err log

Available in comments.
Posted Date : 2007-08-14 16:20:42.0

Use this VM option:
-XX:CompileCommand=exclude,sun/awt/X11/XAtom,getAtomListProperty

In compiling sun/awt/X11/XAtom.getAtomListProperty, C2 is misaligning a pointer
(cast from a long in an unsafe native) in the debug info at a deoptimization point.

The debug info has the two entries as a value/deaddeaf pair, when it should be 
a deaddeaf/value pair.

*** (#1 of 1): [ UNSAVED ]   xxxxx@xxxxx  
Posted Date : 2007-08-29 23:02:06.0

The problme stems from C2 confusing two different uses of RawPtr types.  Both
a jsr return bci and an unsafe native pointer are represented as RawPtrs.  In 64
bit VMs, the stack representation differs.
Posted Date : 2007-09-04 23:01:28.0

Postaloc transformations treat CastX2P nodes as ideal copies and therefore are considered interchangeable with a MachSpillCopy. Under the right conditions, postaloc will eliminate copies so that a safepoint node has a CastX2P as input.  A CastX2P node should not appear as input to JVMState information, as FillLocArray can not properly deal with native pointers.
Posted Date : 2007-09-06 19:03:44.0

I just saw this in on linux, x84_64 build, shipping jdk1.6.0_04
java version "1.6.0_04"
Java(TM) SE Runtime Environment (build 1.6.0_04-b12)
Java HotSpot(TM) 64-Bit Server VM (build 10.0-b19, mixed mode)

Linux delirium 2.6.24-19-rt #1 SMP PREEMPT RT Wed Jun 4 16:31:35 UTC 2008 x86_64 GNU/Linux

The particular failure mode of this bug can be symptomatic  of a number of different kinds of problems.  We interested in investigating such problems if you can provide specific details.