FreeBSD 6.1 buildworld segfault on gcc

[Alex Zbyslaw]

Mischa Peters wrote:

> Hi All,
>
> Not sure if this is the right list, there are so many... but here it  
> goes. :)

Always a good place to start.

>
> I am trying to run buildworld on FreeBSD 6.1. Using RELENG_6_1.
> It segfaults on GCC with the following message:
>
> cc -O2 -fno-strict-aliasing -pipe -DIN_GCC -DHAVE_CONFIG_H -DPREFIX= 
> \"/usr/obj/usr/src/tmp/usr\" -I/usr/obj/usr/src/tmp/usr/src/gnu/ 
> usr.bin/cc/cc_int/../cc_tools -I/usr/src/gnu/usr.bin/cc/cc_int/../ 
> cc_tools -I/usr/src/gnu/usr.bin/cc/cc_int/../../../../contrib/gcc -I/ 
> usr/src/gnu/usr.bin/cc/cc_int/../../../../contrib/gcc/config - 
> DHAVE_CONFIG_H -DTARGET_NAME=\"i386-undermydesk-freebsd\" -DIN_GCC  - 
> I/usr/obj/usr/src/tmp/legacy/usr/include -c /usr/src/gnu/usr.bin/cc/ 
> cc_int/../../../../contrib/gcc/local-alloc.c
> cc -O2 -fno-strict-aliasing -pipe -DIN_GCC -DHAVE_CONFIG_H -DPREFIX= 
> \"/usr/obj/usr/src/tmp/usr\" -I/usr/obj/usr/src/tmp/usr/src/gnu/ 
> usr.bin/cc/cc_int/../cc_tools -I/usr/src/gnu/usr.bin/cc/cc_int/../ 
> cc_tools -I/usr/src/gnu/usr.bin/cc/cc_int/../../../../contrib/gcc -I/ 
> usr/src/gnu/usr.bin/cc/cc_int/../../../../contrib/gcc/config - 
> DHAVE_CONFIG_H -DTARGET_NAME=\"i386-undermydesk-freebsd\" -DIN_GCC  - 
> I/usr/obj/usr/src/tmp/legacy/usr/include -c /usr/src/gnu/usr.bin/cc/ 
> cc_int/../../../../contrib/gcc/loop.c
> /usr/src/gnu/usr.bin/cc/cc_int/../../../../contrib/gcc/loop.c: In  
> function `strength_reduce':
> /usr/src/gnu/usr.bin/cc/cc_int/../../../../contrib/gcc/loop.c:5420:  
> 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.
> *** Error code 1

Does it always segfault in the same place?  If not then faulty memory is 
your number one suspect.  For that try memtest86+ (google for it and 
burn a CD), or just try pulling memory sticks and seeing if the problem 
goes away (but beware static).

--Alex