Customer is seeing the following crash after applying a fix for CR 6492085 and CR 6518092 Here is the header file from the hs_err log:

#
# An unexpected error has been detected by HotSpot Virtual Machine:
#
#  SIGBUS (0xa) at pc=0xfec2a8b8, pid=7988, tid=4
#
# Java VM: Java HotSpot(TM) Server VM (1.5.0_20070220 mixed mode)
# Problematic frame:
# V  [libjvm.so+0x42a8b8]
#

---------------  T H R E A D  ---------------

Current thread (0x00102e88):  ConcurrentMarkSweepThread [id=4]

Here is the stack of the core taken with mdb:

> $C
f89ff070 libc.so.1`_lwp_kill+8(6, 0, fee7b164, ffffffff, ff2e8298, 6)
f89ff0d0 libc.so.1`abort+0x110(7400, 1, fef09cbc, a8244, ff2eb298, 0)
f89ff160 0xfee7b164(1, 0, ff012fe4, fefde000, 7d2c, 7c00)
f89ff1c0 0xfef09cbc(0, ff03a7b8, ff03404c, 1, fee7f7d0, ff03404c)
f89ff2b0 libjvm.so`JVM_handle_solaris_signal+0xaac(a, f89ff7d0, f89ff518, 8000, 
28, 102e88)
f89ff3b8 libc.so.1`__sighndlr+0xc(a, f89ff7d0, f89ff518, fea74714, 0, 1)
f89ff418 libc.so.1`call_user_handler+0x3b8(a, ffbffeff, c, 0, fe260400, f89ff518
)
f89ff850 0xfec2a8b8(f89ffa30, 9980, ff0248f0, ff0248f4, ff027d7c, fefde000)
f89ff8e0 libjvm.so`__1cGBitMapHiterate6MpnNBitMapClosure_II_v_+0x80(19900000, bd
92b6c, 5ec95b, f89ffa30, f29e0, cc8000)
f89ff940 0xfec23e34(f2968, 0, f89ffa30, 1, f2990, f299c)
f89ffa70 0xfec23b74(1, 733c, f2968, fef55c5f, 7000, f29e8)
f89ffb40 0xfec21428(1, f2968, 10, 37c40, 4, 4)
f89ffbb0 0xfec2e504(0, 7d0, ff027ac4, 102e88, 1, ff032208)
f89ffc10 0xfee7ac80(102e88, 1f34, fefde000, 0, 5834, 5800)
f89fffa0 libc.so.1`_lwp_start(0, 0, 0, 0, 0, 0)
>