I ran the run.cloudscape test in a loop with -Xint and the optimized
VM. It failed after serveral hours with a SIGBUS and dbx gave this
retrace.

=>[1] __sigprocmask(0x0, 0x71b4c768, 0x0, 0xffffffff, 0xffffffff, 0x0), at 0xff369968
  [2] _resetsig(0xff37c524, 0x0, 0x25778, 0x0, 0x0, 0x257f4), at 0xff35f1e8
  [3] _sigon(0xff380fc0, 0xff380fa0, 0x257ec, 0xffbec05c, 0x6, 0x1), at 0xff35e934
  [4] _thrp_kill(0x0, 0x1, 0x6, 0xff37c524, 0x25778, 0xff380924), at 0xff3617ac
  [5] abort(0xff332118, 0xffbec150, 0x0, 0xfffffff8, 0x0, 0xffbec171), at 0xff2b9338
  [6] os::abort(0xfe4f4ba4, 0x0, 0xffbeb9a0, 0x1, 0xfe4f4ba4, 0xffbec16c), at 0xfe2d26d4
  [7] report_error(0xfe5108d8, 0x5dd8, 0xffbecb34, 0x38, 0xfe5ae8e4, 0xfe50bd60), at 0xfe1d0e50
  [8] handle_unexpected_exception(0xfe4f4ba4, 0xa, 0xffbed090, 0x7f438, 0x7f438, 0xfe4f4ba4), at 0xfe2d4abc
  [9] JVM_handle_solaris_signal(0x1, 0xfe4f4ba4, 0xfe527518, 0xdb0, 0x7f438, 0x27f70), at 0xfe2d88f8
  [10] __sighndlr(0xa, 0xffbed090, 0xffbecdd8, 0xfe2d45e4, 0x257fc, 0x257dc), at 0xff36b920
  [11] sigacthandler(0xa, 0xffbed090, 0xffbecdd8, 0xff37c524, 0x28, 0x2580c), at 0xff36830c
  ---- called from signal handler with signal 10 (SIGBUS) ------
  [12] 0x7f438(0x25fc8, 0x25fc8, 0xffffff88, 0x2ff810, 0x0, 0xffbed110), at 0x7f437
  [13] 0x73b9c(0xfffffff7, 0x0, 0xffffff80, 0x2ff80c, 0x4, 0xffbed188), at 0x73b9b
  [14] 0xfbc0aa70(0xf591f7d0, 0xf6daed88, 0xffffffb8, 0x2ff808, 0x0, 0xffbed208), at 0xfbc0aa6f
  [15] 0xfbc0e088(0xf6daed88, 0xf591f7d0, 0x0, 0x7c974, 0x71000, 0xffbed210), at 0xfbc0e087
  [16] 0x73b78(0xffbed3a4, 0xffbed418, 0xffbed41c, 0x7f388, 0x8, 0xffbed290), at 0x73b77
  [17] 0x73b78(0xffbed42c, 0xffbed4ac, 0xffbed4b0, 0x7f544, 0xc, 0xffbed340), at 0x73b77
  [18] 0x73b78(0xffbed4bc, 0xf9a0cd40, 0x0, 0x7f388, 0x14, 0xffbed3c0), at 0x73b77
  [19] 0x73ce0(0xffbed594, 0xf9a04208, 0xffbed658, 0x7f6bc, 0x10, 0xffbed448), at 0x73cdf
  [20] 0x73d04(0xffbed65c, 0xf9ba5318, 0x0, 0x7f6bc, 0xc, 0xffbed520), at 0x73d03
  [21] 0x73b78(0xffbed71c, 0xf98f3980, 0x0, 0x7f388, 0x8, 0xffbed5c0), at 0x73b77
  [22] 0x73d04(0xffbed7ec, 0x0, 0xffbed868, 0x7f6bc, 0x3c, 0xffbed688), at 0x73d03
  [23] 0x73b9c(0xffbed87c, 0xf99e11c0, 0xffbed904, 0x7f388, 0x24, 0xffbed770), at 0x73b9b
  [24] 0x73d04(0xffbed90c, 0xffbed98c, 0xffbed990, 0x7f6bc, 0x18, 0xffbed808), at 0x73d03
  [25] 0x73b9c(0xffbed99c, 0xf9acc478, 0xfe516608, 0x7f544, 0xc, 0xffbed8a8), at 0x73b9b
  [26] 0x73ce0(0xffbeda1c, 0xf9c13f68, 0xfe516608, 0x7d1f4, 0x10, 0xffbed930), at 0x73cdf
  [27] 0x73ce0(0xffbedacc, 0x108428, 0xfe516608, 0x7d1f4, 0x8, 0xffbed9b8), at 0x73cdf
  [28] 0x73b78(0xffbedb6c, 0x108428, 0xfe516608, 0x7d014, 0x8, 0xffbeda38), at 0x73b77
  [29] 0x73b78(0xffbedc10, 0x108428, 0xfe516608, 0x7d014, 0x1c, 0xffbedaf8), at 0x73b77
  [30] 0x73b78(0xffbedcb4, 0xf9a50560, 0xfe516608, 0x7d014, 0x14, 0xffbedba0), at 0x73b77
  [31] 0x73d04(0xffbedd34, 0xf9b8dbb0, 0xffbedd38, 0x7d1f4, 0x14, 0xffbedc30), at 0x73d03
  [32] 0x73d04(0xffbeddd4, 0xf9b8dbb0, 0xffbede64, 0x7f6bc, 0x4, 0xffbedcd0), at 0x73d03
  [33] 0x73d04(0xffbede6c, 0xffbedeec, 0xffbedef0, 0x7f6bc, 0x4, 0xffbedd70), at 0x73d03
  [34] 0x73b9c(0xffbedef4, 0xf9ae2e60, 0xffbedef8, 0x7f388, 0xc, 0xffbede08), at 0x73b9b
  [35] 0x73d04(0xffbedfa4, 0xf9ab5058, 0xffbedfa8, 0x7f6bc, 0x8, 0xffbede88), at 0x73d03
  [36] 0x73b9c(0xffbee04c, 0xf9addb28, 0xfe4f4ba4, 0x7f388, 0x8, 0xffbedf40), at 0x73b9b
  [37] 0x73d04(0xffbee0dc, 0x108428, 0xfe516608, 0x7d1f4, 0x8, 0xffbedfe8), at 0x73d03
  [38] 0x73b78(0xffbee154, 0x3ec, 0x3ec, 0x7d01c, 0x4, 0xffbee078), at 0x73b77
  [39] 0xfe5a21b0(0xffbee1d8, 0xffbee380, 0xa, 0xf98c0be0, 0x4, 0xffbee0f8), at 0xfe5a21af
  [40] JavaCalls::call_helper(0xeefd8, 0xffbee2a0, 0xffbee2a0, 0xfe4f4ba4, 0x0, 0x27f70), at 0xfe23844c
  [41] jni_invoke(0xffbee378, 0xfe51b964, 0x1, 0x0, 0x27f70, 0xffbee35c), at 0xfe242ef4
  [42] jni_CallStaticVoidMethod(0x27ff4, 0xfe51b964, 0xffbee3f0, 0x27f70, 0xf9802148, 0xf582d130), at 0xfe253590
  [43] main(0x27ff4, 0x0, 0x28104, 0x108a98, 0x280fc, 0x0), at 0x11ed0