请教__CleanupCatch() 问题

jumpjumpfish

在aix4.3用Xlc5.0.2版本编译的一个应用出现core dump，程序中已经捕捉了所有的异常。core信息如下。请教高手，这是哪里出的问题？
是不是编译器对整型的异常处理有问题？

Type 'help' for help.
reading symbolic information ...
[using memory image in /home/bill/tuxedo/dxtt/bin/core]

Segmentation fault in . at 0x646c ($t1)
0x0000646c warning: Unable to access address 0x646c from core
ffffffff   warning: Unable to access address 0x646c from core
fnmadd.   fr31,fr31,fr31,fr31
warning: could not locate trace table from starting address 0x646c
__CleanupCatch() at 0xd0cefa10
IpTypeIsStatic(0x20072910) at 0x1000c0c8
_tmsvcdsp() at 0xd10e0428
_tmrunserver() at 0xd1105bd0
_tmstartserver() at 0xd11365fc
main(argc = 16, argv = 0x2ff225fc), line 170 in "BS-165c6.c"