I got the last resort.... I downgraded back to php5-5.4.20-21.1.x86_64 and the same config I had in September. TY for your script. I divided it in two steps to have the list of packages and then to install them with zypper in -f. It worked perfectly! This way I would like try to exclude the php environment and address what I changed after that date. My targets for next checks are phpBB 3.1.2 that was upgraded in that period and eventually the OS environment (linux kernel, VmWare vitualization level, etc) You addressed me toward memory problems, now I try to focus to that area (btw, my php uses as sessiona.save.path and upload.tmp.dir a memory area defined in tmpfs. I want to try to revert it to default disk area. I really appreciated you kind help, and I'm afraid that it looks as my problem is somewhere outside php, so maybe I made you loose a lot of time. I'm really confused at this moment...