apache log: "illegal instruction" [solved]

[wetter]

hi everybody,

i just freshly installed gentoo 2006.1 on a pentium4 system.

make.conf:
x86
cflags: -march=prescott -O2 -pipe -fomit-frame-pointer
makeopts: -j3

lamp installs no problem, apachectl checkconfig finds everythin ok, apache starts, i can see phpinfo() output but then, wenn i send a request to a vhost running a typo3 installation all goes terribly wrong.

links says: 'error reading from socket'
in apaches error log i find child pid 2134 exit signal illegal instruction(4)
it is always 4

i reinstalled from scratch already with the same result. it is a 2.6.18 kernel apache2 and php5 the only gcc's version on that system so far is 4.1.1.

please help and sorry, i've posted this on gentooinstall as well, i only have some hours left to go (ubuntu cd already next to me)

...at the moment i rebuild world with -j1 and default -march 686 ...

hope you can help me, thank you,

best regards, jo


edit:

changing the cflags maybe solved the issue. the rebuild is still running but apache and php are already done. i now use '-o2 -march=i686 -pipe'

if this is really it, should i maybe add a note to the wiki page where i found the "safe cflags" for my cpu?

[desultory]

If you do leave a note on the wiki article be sure to include that these flags seem to be safe with gcc 4.1.1, leave to other flags unchanged for now.

[wetter]

the wiki is fine, the error was: one of the boxes had a pentium4 and the other one a pentium4-prescott. unforutnately the resulting "illegal instruction" errors appeared very late. in running apache and compiling gtk+.