After a desperating day of solving a problem I have to report this. I used to compile everything with the vanilla P4-Flags as specified in make.conf but yesterday a rebuilt some parts of my system with the specified "-march=i686 -O3 -pipe -fomit-frame-pointer -fforce-addr -funroll-loops -frerun-cse-after-loop -frerun-loop-opt -malign-functions=4" and from then on I couldn't connect to my ISP via the ssh2-protocol. I got the error: "key_verify failed for server_host_key" all the time, protocol1 however worked perfectly. I tried the whole day until I rebuilt it again with the vanilla flags and it started to work fine. Thus the CFLAGS should be "softened" a bit...especially as newbies often begin with reading the FAQ (ok, that was quite optimistic :) ). P.S. Mozilla seems also to crash more often than usual.
I do not see the problem. It do state: "When you use any optimizations beyond -O3, you're really taking the risk of having broken packages.". Thus if you used that example which as far as I am concerned, *for people that want to push things, and know things can break*, you were warned in the FAQ and should have known that it could break.
assigned/fixed borks the database,changing to resolved:fixed. //ZhEN