buildworld seg faulting.

Hello list,

For the past couple of weeks I've been tyring to keep my system up to date 
with cvsup. However, when ever I run a buildworld I get problems with gcc (I 
think it's gcc). I've tried nuking /usr/obj and running "make clean" many 
tims before each build but this doesn't help. What I've noticed is that the 
seg fault doesn't occur in the same place.

The following is snippets of two errors.
===> gnu/usr.bin/binutils/size
/usr/obj/usr/src/gnu/usr.bin/binutils/size created for 
/usr/src/gnu/usr.bin/binu
tils/size
Segmentation fault (core dumped)
*** Error code 139

Stop in /usr/src/gnu/usr.bin/binutils.
*** Error code 1

Stop in /usr/src/gnu/usr.bin.
*** Error code 1

Stop in /usr/src/gnu.
*** Error code 1

Stop in /usr/src.
*** Error code 1

Stop in /usr/src.
*** Error code 1

And:
insn-opinit.c: In function `init_all_optabs':
insn-opinit.c:510: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
*** Error code 1

Stop in /usr/src/gnu/usr.bin/cc/cc_int.
*** Error code 1

Stop in /usr/src/gnu/usr.bin/cc.
*** Error code 1

Stop in /usr/src.
*** Error code 1

Stop in /usr/src.
*** Error code 1

Stop in /usr/src.
My current uname -a reports:
FreeBSD nova 5.1-CURRENT FreeBSD 5.1-CURRENT #0: Sat Aug 16 12:32:29 EST 2003     
agh_at_nova:/usr/obj/usr/src/sys/NOVA  i386

I was able to buildworld once a week ago. After each seg fault I would just 
continue the build again with out cleaning out the object files.

Thanks in advance
-Al