FreeBSD 6.1-RELEASE source update fails during compilation

Sun Apr 8 06:06:04 UTC 2007

I'm unable to buildworld on a brand new installation of freebsd 6.1.  Almost 
everytime my build fails on the genattrtab.c section of cc_tools.  I've 
tried multiple harddrives, and downloaded the source code many times.  A 
couple of times the system has rebooted itself, once during cvsup of the 
source code, and again during a build.

What else should I be looking for to diagnose this problem?

My System:

FreeBSD 6.1-RELEASE
733MHZ Intel P3
Asus pv3-4x latest bios 1006.004
Sound Blaster Live
Voodoo 3 16mb GFX Card
HDDs:  I've tried 3 different drives, the first few tries were with 2 drives 
gmirror'd and then without the gmirror ( RAID 1 )

Memtest checks out ok ( Ran 5 hours 150 loops )

Here is the last few lines of everytime I've tried to compile the source.

=========================================================

./gencodes 
/usr/src/gnu/usr.bin/cc/cc_tools/../../../../contrib/gcc/config/i386/i386.md 
 > insn-codes.h
cc -O2 -fno-strict-aliasing -pipe -I. -DIN_GCC -DHAVE_CONFIG_H -DPREFIX=\"/usr\" 
 -I/usr/obj/usr/src/gnu/usr.bin/cc/cc_tools/../cc_tools -I/usr/src/gnu/usr.bin/cc/cc_tools/../cc_tools 
 -I/usr/src/gnu/usr.bin/cc/cc_tools/../../../../contrib/gcc -I/usr/src/gnu/usr.bin/cc/cc_tools/../../../../contrib/gcc/config 
 -DGENERATOR_FILE  -I/usr/obj/usr/src/tmp/legacy/usr/include -c 
/usr/src/gnu/usr.bin/cc/cc_tools/../../../../contrib/gcc/genconfig.c
cc -O2 -fno-strict-aliasing -pipe -I. -DIN_GCC -DHAVE_CONFIG_H -DPREFIX=\"/usr\" 
 -I/usr/obj/usr/src/gnu/usr.bin/cc/cc_tools/../cc_tools -I/usr/src/gnu/usr.bin/cc/cc_tools/../cc_tools 
 -I/usr/src/gnu/usr.bin/cc/cc_tools/../../../../contrib/gcc -I/usr/src/gnu/usr.bin/cc/cc_tools/../../../../contrib/gcc/config 
 -DGENERATOR_FILE  -I/usr/obj/usr/src/tmp/legacy/usr/include  -L/usr/obj/usr/src/tmp/legacy/usr/lib 
 -o genconfig genconfig.o rtl.o print-rtl.o bitmap.o gensupport.o ggc-none.o 
read-rtl.o insn-conditions.o min-insn-modes.o errors.o libiberty.a
./genconfig 
/usr/src/gnu/usr.bin/cc/cc_tools/../../../../contrib/gcc/config/i386/i386.md 
 > insn-config.h
cc -O2 -fno-strict-aliasing -pipe -I. -DIN_GCC -DHAVE_CONFIG_H -DPREFIX=\"/usr\" 
 -I/usr/obj/usr/src/gnu/usr.bin/cc/cc_tools/../cc_tools -I/usr/src/gnu/usr.bin/cc/cc_tools/../cc_tools 
 -I/usr/src/gnu/usr.bin/cc/cc_tools/../../../../contrib/gcc -I/usr/src/gnu/usr.bin/cc/cc_tools/../../../../contrib/gcc/config 
 -DGENERATOR_FILE  -I/usr/obj/usr/src/tmp/legacy/usr/include -c 
/usr/src/gnu/usr.bin/cc/cc_tools/../../../../contrib/gcc/genflags.c
cc -O2 -fno-strict-aliasing -pipe -I. -DIN_GCC -DHAVE_CONFIG_H -DPREFIX=\"/usr\" 
 -I/usr/obj/usr/src/gnu/usr.bin/cc/cc_tools/../cc_tools -I/usr/src/gnu/usr.bin/cc/cc_tools/../cc_tools 
 -I/usr/src/gnu/usr.bin/cc/cc_tools/../../../../contrib/gcc -I/usr/src/gnu/usr.bin/cc/cc_tools/../../../../contrib/gcc/config 
 -DGENERATOR_FILE  -I/usr/obj/usr/src/tmp/legacy/usr/include  -L/usr/obj/usr/src/tmp/legacy/usr/lib 
 -o genflags genflags.o rtl.o print-rtl.o bitmap.o gensupport.o ggc-none.o 
read-rtl.o insn-conditions.o min-insn-modes.o errors.o libiberty.a
./genflags 
/usr/src/gnu/usr.bin/cc/cc_tools/../../../../contrib/gcc/config/i386/i386.md 
 > insn-flags.h
cc -O2 -fno-strict-aliasing -pipe -I. -DIN_GCC -DHAVE_CONFIG_H -DPREFIX=\"/usr\" 
 -I/usr/obj/usr/src/gnu/usr.bin/cc/cc_tools/../cc_tools -I/usr/src/gnu/usr.bin/cc/cc_tools/../cc_tools 
 -I/usr/src/gnu/usr.bin/cc/cc_tools/../../../../contrib/gcc -I/usr/src/gnu/usr.bin/cc/cc_tools/../../../../contrib/gcc/config 
 -DGENERATOR_FILE  -I/usr/obj/usr/src/tmp/legacy/usr/include -c 
/usr/src/gnu/usr.bin/cc/cc_tools/../../../../contrib/gcc/genattrtab.c
/usr/src/gnu/usr.bin/cc/cc_tools/../../../../contrib/gcc/genattrtab.c:6240: 
internal compiler error: Segmentation fault: 11
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
{standard input}: Assembler messages:
{standard input}:14060: Warning: partial line at end of file ignored
*** Error code 1

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