Customer got a crash in Hotspot Server VM of 1.4.2_25-rev-b02.
Orignal Fatal Error Log is attached to this CR.

#
# An unexpected error has been detected by HotSpot Virtual Machine:
#
# EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x61a7653b, pid=3472, tid=10848
#
# Java VM: Java HotSpot(TM) Server VM (1.4.2_25-rev-b02 mixed mode)
# Problematic frame:
# V [jvm.dll+0xc653b]
#
...
Top of Stack: (sp=0x09acf2fc)
0x09acf2fc: 09acf484 000001ae 61a1415e 000001ae
0x09acf30c: 00000008 62441a34 624c390c 00000001
0x09acf31c: 62441998 623ac5d0 00000003 62465fc8
0x09acf32c: 624c710c 00009378 00080000 01f60000
0x09acf33c: 623b2a08 6246559c 00000025 00000000
0x09acf34c: 00000000 00000000 61a1464b 624c390c
0x09acf35c: 624c390c 62441a34 00000001 00000003
0x09acf36c: 09acf484 00000000 7c8220e0 09acf484

Instructions: (pc=0x61a7653b)
0x61a7652b: f1 c1 e0 04 c1 ee 08 8b 54 10 04 8b c1 c1 e8 05
0x61a7653b: 8b 14 b2 83 e1 1f be 01 00 00 00 83 e0 07 d3 e6
61a7652b f1 icebp
61a7652c c1 e0 04 shl $0x4,%eax
61a7652f c1 ee 08 shr $0x8,%esi
61a76532 8b 54 10 04 mov 0x4(%eax,%edx,1),%edx
61a76536 8b c1 mov %ecx,%eax
61a76538 c1 e8 05 shr $0x5,%eax
---------------
61a7653b 8b 14 b2 mov (%edx,%esi,4),%edx
61a7653e 83 e1 1f and $0x1f,%ecx
61a76541 be 01 00 00 00 mov $0x1,%esi
61a76546 83 e0 07 and $0x7,%eax
61a76549 d3 e6 shl %cl,%esi
...

Stack: [0x09a90000,0x09ad0000), sp=0x09acf2fc, free space=252k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
V [jvm.dll+0xc653b];; ?test_edge_sq@PhaseIFG@@QBEHII@Z+0x3b
...
=>0x01171078 JavaThread "CompilerThread1" daemon [_thread_in_native, id=10848]
...
vm_info: Java HotSpot(TM) Server VM (1.4.2_25-rev-b02) for windows-x86, built on Jan 11 2010 11:47:18 by "java_re" with MS VC++ 6.0