I'm having immense problems getting Samba and PHP to work on a new AMD system I've got at work.

At home I have successfully compiled and installed PHP and Apache and Samba on my Intel based system under FC6 with the 2.6.18.1 kernel.

At work I have exactly the same kernel on an AMD processor (Barton). However, Samba and PHP simply will not work after compiling on this system. All Samba applications abort with "Illegal Instruction". PHP cannot eveb be installed fully, the part that says "Installing PEAR..." also just prints out "Illegal Instruction" and then drops back to the shell prompt after doing make install.

If I start up Apache with PHP, no PHP page renders at all - in the Apache log I have

[Mon Jul 02 09:07:05 2007] [notice] Apache/2.2.3 (Unix) PHP/5.1.6 configured -- resuming normal operations
[Mon Jul 02 09:07:28 2007] [notice] SIGHUP received. Attempting to restart
httpd: Could not reliably determine the server's fully qualified domain name, using 127.0.0.1 for ServerName
[Mon Jul 02 09:07:28 2007] [notice] Apache/2.2.3 (Unix) PHP/5.1.6 configured -- resuming normal operations
[Mon Jul 02 09:09:52 2007] [notice] SIGHUP received. Attempting to restart
[Mon Jul 02 09:09:52 2007] [notice] Apache/2.2.3 (Unix) PHP/5.1.6 configured -- resuming normal operations
[Mon Jul 02 09:10:32 2007] [notice] SIGHUP received. Attempting to restart
[Mon Jul 02 09:10:32 2007] [notice] Apache/2.2.3 (Unix) PHP/5.1.6 configured -- resuming normal operations
[Mon Jul 02 09:12:00 2007] [notice] child pid 21575 exit signal Illegal instruction (4)
[Mon Jul 02 09:12:07 2007] [notice] child pid 21578 exit signal Illegal instruction (4)
[Mon Jul 02 09:12:31 2007] [error] [client 127.0.0.1] File does not exist: /usr/local/apache2/htdocs/favicon.ico
[Mon Jul 02 09:12:38 2007] [notice] child pid 21576 exit signal Illegal instruction (4)
[Mon Jul 02 09:13:01 2007] [notice] child pid 24202 exit signal Illegal instruction (4)
[Mon Jul 02 09:13:18 2007] [notice] child pid 24204 exit signal Illegal instruction (4)
[Mon Jul 02 09:13:18 2007] [error] [client 10.0.0.8] File does not exist: /usr/local/apache2/htdocs/favicon.ico
[Mon Jul 02 09:13:51 2007] [notice] child pid 24205 exit signal Illegal instruction (4)
[Mon Jul 02 09:17:00 2007] [notice] child pid 24203 exit signal Illegal instruction (4)
[Mon Jul 02 09:17:08 2007] [notice] child pid 21577 exit signal Illegal instruction (4)
[Mon Jul 02 09:17:12 2007] [notice] child pid 24238 exit signal Illegal instruction (4)
[Mon Jul 02 09:27:17 2007] [error] [client 10.0.0.7] File does not exist: /usr/local/apache2/htdocs/favicon.ico
[Mon Jul 02 09:27:18 2007] [notice] child pid 24285 exit signal Illegal instruction (4)
[Mon Jul 02 10:17:05 2007] [error] [client 10.0.0.8] File does not exist: /usr/local/apache2/htdocs/favicon.ico
[Mon Jul 02 10:17:05 2007] [error] [client 10.0.0.8] File does not exist: /usr/local/apache2/htdocs/favicon.ico
[Mon Jul 02 10:17:05 2007] [notice] child pid 24286 exit signal Illegal instruction (4)
[Mon Jul 02 10:17:05 2007] [notice] child pid 24287 exit signal Illegal instruction (4)
[Mon Jul 02 10:17:11 2007] [notice] child pid 24213 exit signal Illegal instruction (4)
[Mon Jul 02 10:17:11 2007] [notice] child pid 24330 exit signal Illegal instruction (4)
[Mon Jul 02 10:17:12 2007] [notice] child pid 24236 exit signal Illegal instruction (4)
[Mon Jul 02 10:17:12 2007] [notice] child pid 24858 exit signal Illegal instruction (4)
[Mon Jul 02 10:17:12 2007] [notice] child pid 24859 exit signal Illegal instruction (4)
[Mon Jul 02 10:17:12 2007] [notice] child pid 24860 exit signal Illegal instruction (4)
[Mon Jul 02 10:17:24 2007] [notice] child pid 21579 exit signal Illegal instruction (4)
[Mon Jul 02 10:18:04 2007] [notice] child pid 24862 exit signal Illegal instruction (4)
[Mon Jul 02 10:18:04 2007] [notice] child pid 24863 exit signal Illegal instruction (4)

What the heck is going on? I've already tried dropping back to gcc34 (since FC6 has gcc4, I thought this might be compiling corrupt executables). I've already tried different arches for GCC:

CFLAGS='-O3 -fomit-frame-pointer -ffast-math -fexpensive-optimizations -fstrict-aliasing -funroll-loops -funroll-all-loops -fforce-addr -finline-functions -frerun-loop-opt -falign-loops=4 -falign-jumps=4 -falign-functions=4 -march=i686 -mmmx -msse2

and

CFLAGS='-O3 -fomit-frame-pointer -ffast-math -fexpensive-optimizations -fstrict-aliasing -funroll-loops -funroll-all-loops -fforce-addr -finline-functions -frerun-loop-opt -falign-loops=4 -falign-jumps=4 -falign-functions=4 -march=athlon -mmmx -msse2

with both having the "illegal instruction" result in all Samba apps and PHP as well...

The only thing different between my two Linux systems is that one has an Intel CPU and this machine has an AMD CPU - and the AMD compiled binaries keep aborting with "Illegal instruction".

Any ideas? Any help appreciated!

Thanks...

Does Barton support SSE2? The comparison on Wikipedia seems to suggest not.

I was really stupid regarding this the solution was to change the compiler options from

-O3 -fomit-frame-pointer -ffast-math -fexpensive-optimizations -fstrict-aliasing -funroll-loops -funroll-all-loops -fforce-addr -finline-functions -frerun-loop-opt -falign-loops=4 -falign-jumps=4 -falign-functions=4 -march=i686 -mmmx -msse2

to

-O3 -fomit-frame-pointer -ffast-math -fexpensive-optimizations -fstrict-aliasing -funroll-loops -funroll-all-loops -fforce-addr -finline-functions -frerun-loop-opt -falign-loops=4 -falign-jumps=4 -falign-functions=4 -march=amd -mmmx -m3dnow

so that binaries will run correctly on an AMD processor.

As I said, stupid me...